Document gb30VjLg2DQqJjwjj8DKEgwvV

TALC First Srsft O c t o b e r 3 ,5 7 3 By : C s u te r f o r O c c a p a tio n a i sa d S z s v iro n a e n t ! S a fe ty aad H e a lth P r a p s z s fii f o r i Si,'yi.8i.oo of Criteria DoeuMsaeatioa ad Standards BevalepMent National Institute for Occapet.isaal Safety sad Health 2 B I P r o j e c t H o - 6 4 .5 3 SKI International 1611 Sortt Heat Street A r lin g t o a 3 V ir g in ia 12209 1(76C1f1)K6.2K4e-2nt S53tre*eOt nfAoirli:nmgtoMn, ViilrgWinDia&22209 S * \* r PLAINTIFFS EXHIBIT WCD-159 WCD 001037 F A ? . v rrv E. ! p htr. he 8 | u". 4g N WCD 001038 aff um fat* kUlitt(, proe#s*in* diMributiwi, str<# m ti m * f le. 4{ * 0esiw*fc!*M*t xposi*" U ta it: U teflited xpoaura ta Jt.rbom te i at ,, r w . r i s s t D ftA F T cen M & r*tlan 'to o ** M W sil tfc* xn&am m ni f t r w m t a i U *lfc fv r t a l c l i t t S#eti m ratasBWHted snvtrsHunfcfti ii*sif. l i butdtm feig iRdcatio^ * 2** 9 I*S *K i :B S j 2 3 #V4 * s <0 S P w * 8 w i %d * Cfd i S *I % ;C 1 *? *I 3 3 : l I 4 'S 3 3) V r-s4* P $I ! 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S i IG i 40 0 US x p * .3 4^> . "-> " A ?" :* -V* p i% 1 1 i -fi u t te * * * * tf) T i* ss w 1 cv "A --* iS eg fl* & w ^ i a- tn * o ; S O r y * 0 -ff "L r np f w O JN 5 <kt 4 * 'v? a 1 c fi *0 &* c JJ - 1 s V sfi ': g 1 %ftei s .fi A ' Ai sm ta te .fi -* fi a # a 1 -s 1 *1 i 4 i 1J ! c*; 3s '3 i. " -*- Jik 3k O' f S e i .*' 5 C O . 'A i 4ft <---s1 Z r, j a S rp- c 4 if 'S SJ ri? i h m Cj \ WCD 001041 ff i *1 f i 3 X ieC*> 4".S X *o Xi w Ti f> &"S' SS 4$*-*. jaSG/i '4 c0 X 2f*i &**U* Xfir Jtm>mfi 'i.f0i tui S'S<5**; XK--ftHt*1 *Sl:rHfi*i -S.j**i JQ* *<! 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Se 0 i`". fi) aj k* v f-hii*eif S ' UMi) r--e fi fi *1} min j2 t-4 V S m "O . f fii , 'f i '1*B* 5 4K -fV h.' /.. ` . fia, SHSl >fe> *3 `CI ; ; ; M ' . .* "S s Mfit p >> SE *1 3*s o 5 'gk* Jtfj 4S i i < -U ih * ' * r fiT 3 <M -4f5i --c e. -k -<fik* li a; fi -c < g* r* * * i. * 4 7 s*Bw* * J fi OS <*K 0 <a vZ5 4, 0 5 * ffii ut* ** 3t r*? $ E 1 X <jfe ( fi - ** V s*s* A: > 4 Afi %4? m i* e %s* S g ,0 ci W -i a$> Wp ,4 i &8S #v WCD 001042 * * r*ptr*ter Ml be .tl<!t*4 I Acerdtoe* fth ih* If > 'S JS 6 & c i i - fe tt -jo **< * fe fe mC & t-x t.: '% c fe < *5 6 i* V-, 4 X fe * 'V.- -t t <rt 3fc "?i> zI"S. I 44S* fe f*e< * * --Pc .t-; *G fe fe4 sv rW J* ' T; g .* # a * 4M : fe <?4i 3f fe w 0 *? 1 ' ta cK . ftfese {ki k fe V * S -!< <--fe> 4J n E f*e t. tS .y ! feVi fe -H -> 1 fe feg* *0 trH ti Ifi * * A V as -O y I fe 5i t s r-T=>0 fe fe fe t* 42 fe # # fec. j*-3 *> s* j 42 V O Vi 5-- S i * .-- fe 1 *ffee c fe i '3s- `, : * : i f>e* I*> A -* HB? e t n 5--> V, 4 a co fe % r * fe g - J <** 3 Jfe fejo a m w i *- ** -- 0K * i fe it c I * f fe fe f* iti J*> f si \ r*1 n * V * o f| f i rsi T WCD 001043 p a c if t c a tio n * Ifi-'fisS# l - l nd h o lt is* Utes S | 5 j j w w by Kt(KH or thu Kin* ftw > O ftS 9 S s -V *_ 0 ft 'U b ,u w OM( m X .4* e ft> li /7?$ I) SH- "J '"H fl IS *>s * . art* 0 K: ** :a ft ft V, 3-? & * * G e ; V m s 4? 15 * -w 0 i "% CL O 4? w v V -4* v> a <T-^ M, 9> CJ a c T *A * 0& rC ft0 **3 w ft < ;w fKt Va C i 5* * ftc tbsn o-e V -*-c y ;.5 i' ft ?# y ; - '*. e C? y-. s. i ft w< %a >- 4> ft V 0 M Ct > .4 X; 1* Sr2 0 <k vii e ft '. 2 .srr m e K < w 4? > t G <?-? #* 't t< -y f f i f rii ;s )*. 0 JS i 4K f t g V*.' 6. O a tf S ka q *4o S 1 * *' >5 pSt" v} i* ft 1rs 0 CB C 1 <s # <*s< o>; --4 ft u -- w Ci VI N V. ft *r* JC ? > K ft 8 2 <w f Uc-Ks*k 4M V. V*' T3 <-*J w~*3 jg i bfci dB ie * 1 o n * WH* 33 Es *** 3 5t. r % 0iC - s* a .- ^c s & 0 ' * ft --J ft V| ft %> ft* ft V--fl <1^ i w V.: w T ' --J n ft i- Vw, 1 r- . b . c> K k. J <& s; t L IpC A ft . > -;, * A-' `5 5' -ifc* Pht G "K <*! _- .i 2 ft m .1? 4jCsi *0 ? ? . f l ft *m S r T IS '< JS 2 , C ^5 CS e* # K `? ft < Ob A y* V> f e me ft. B r T .Ul * 'S w u . V--: i? > ? ' - i s &. -^si Jl -- w 18 C . 1 i ,4., * S- :) ftj :;-, ? $ r T -V ?* O -> L- f t s*. ft a> t" 0 ft -: - -.-c *> 0 0 -: . ft ft C 9 c i . i . 6 a & * fO a 0 k Cr v i '*r f t - e> o -*r o (T 8 8 K v> t * WCD 001044 SMHOO Q O M jt tu tt%u% it s jbj ( sja/Jis 005 m i f f Mi jic i - j ir n n a ,k-(sa isss.-i aiv.? i* t b tw %*?i * s t * c w 5rf ft? ,v n* cC8 o fJ & -* f *C tin i .V # i- ` 'c ;?>: i if* .-A- ar 1 u M M is ? # * S w -v V i '-> } <=# e *--**> r 5' J t?* * fi 1 I *fc 'i s sr j? sr a sr * * s I1 c J ?* i~ if i* . O- r*a1 # rS % & *ft 5 a I C. R * f t '5 * i * *-> i t *fc** - -- v * r-p. f j t* it . i . ., sft . f t hr. rt ft S ' '? #*> u>t yitio:fia * ~i? * "" * ft T> < fe i# "i & *j? if l< c - 2 > * A' a ziy?*> c i#. ft ^"C r"f <> & * , "& % t ** > ft *S it- #>=*=* ^ es i * s 4 ;4 * ft? S `a '* S* f? ^ so W rJ f i Li a , * l . * S n r :5 -> m ` *i * t* ti, # & a ra<**?-> ; ** a **> * _ * ST ->'$ ;#: *< * t < s ft- * @ ** e c . i-- i-* "S e , J a ea?vJ f-> 7f :-->\7 ft a ' . > r ' i -. /fVt - i ^ !r & t* < *i MSSi **Sr, **-> 6# CS <1 *3> JS? 1 S ; w- " '* > ''C( > :V S2fe c 3 a ^ * a < i* 5 -*' ; f*4 s r *3 *0 4 t 5= f t T i* * :, t% t1-?. r 'lS IS C K S* ^ a - -t Cr *C' ft vi ta*>.A2* , i-*5 JSf 1*3 51e O <*' 3 s r*- *"it ? * '>. k&i f. Ci o Sf* ft? *c p 5c- f t *? c? &?7 # ft ft IT * ft m * t; -7 % <1 ft t- 'Gt* # frji% 3 ' >ii n - v? f', t5*-<r* i&l t: ft '*? # ft ft: i is ii * s^r tcflss (5 ***< % > 1 ^ > " .M ^Sf > *> i j--- ; sr s 3 * --5; f t ife ^ i\ p i *? W i f ;<r: ( - fMt ,va:> v. ap-si. '>* & S' CSf f t `*i r f 15 f t ft* f t S5* f i w i f 3P ftr r r i* o f :*- <2 Tr " r s-f y r si ` aQ? I > "5 I*i ft 'C- ft> f i *' ft a. f t -9 i f e !-* '? O !5r* a. c*2 Iaf ' K . 5' sf' #J <* , IQ 1 ^ ft 3 3 35 * f t C , U: "i f f <5 f J -3 Jt K H S ft vi * ;> *'I -' a , rrri or*. 11 !a ffs s o ^ * *0 ~ *a j igis# m j * ih)?bjmkM 1 * 3 |g9 IP !M M C I# u j p u r? *4 ! 1 G # 5 -i> u 5 # i ef- 4 C*>o \ i-: T 5 c - r S2 i) 5 -->! 'Z ad &. i . - In V 'i s ,. />V5 i t- . <*< S? w -5. ft B' " * TB > i K t 3w ,.Vr V '*C -u., <4^ % * * 'J i % i CJ d? *? . )$ > i & --* * * -V Kt < i*. *-i * . S ? J <& . t_l : ft. .> f t & . v 9*?.' *K W*> i <9 m i p * w 5 3 I ! * ! .85 ,, fi Si JL\A5* i S s: .*- V, V *> -- l> %` eg ; --: D e J A w i?-. & . y i I.*. <o 1 : 9 3* 3 e 5 * C- -- # * f t f \ -O -. * * *> i *} `V ;-1 *>J -V <%* <V ' g$ s*5i "n rM "$ #*& wj i*s f i ty W C D 001046 pretest!* cithiwr/ ** fipSy*Mi h*I1 also be instructed m their reipaneiWiiU* for fUowJlm> SjV' pfgjur ra tM ptreetieeii *nl nisniMtav jtr**e*sktrAS to hoip protect the health and *roiS5 for the sefety at thorn*?,** *nd of faEto* Mptoyees* * *4 f4t1 wee SO * 2 * SA 'ft o' !u >* & 44 S' o W i> o 5i 6 ft a 4j >s - 8 S' * ft s 4. . K> * * 1 t> *o >j = *a * ft SC IE.a"al 3 * #? it$fmf ft 4iJtS? d4*?<"3:ca ir m* #!* jt i fjt*2Wg*2in il .2s** e& jjej* 54 &*J2i *3ma'51imn4i .V'* S 3f6e Agf*t :v ft v`>J* f**&*t t *Ata-4V?Mt?,?J. v i.'v >i* fStaA* <W**SfV**3ti*sf *U5vKJ? &$E> < ! 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S"; * ** o^a!r?. > V t? >> <**j y. * & 9..j*; (R Cl V o ; iJ 2i*L SI / S **H>> '*{ Y0 4e***-*i e J, %' ; % "ciie>'`)!* OH iw405I>P * %*t <,?j:s 3 3* 7 0 ."4 f > Si< <V4* j9-sftei: H4rKJ< J J>*4Z)5 o *& /<Afc**t a * 5.. * 41 -wC 4*4 *o& ft i-f - 9fLii <J5c-3 w?s*<;! tf-t <J--J !ft J 0 So fe <*-5 ft "J-4S4sks?.^?3*f*ti .v" W1?* tt*1 "f%eti f 45 *ri ft ft '>: $> >V kr a & T3 73 a 5 * 5 41 f*|t 1ff13t3t. fvt. <crr*t ft bft m <5 f o<fi?fbrt>t*; pS5,v3 ikl vs14V %ifmr 1 .*z0 <Wi 1%Sbi .3fJt:' g ft s %VfCt >&Vfftt r ft J5E* ag is>; *c--t > --1 m iS c 5 *3 f t fet 2 VK. c&*<1 itS-ii w*ft 1.mz t*rV4naf 72w? -jftrp io e af fwttt St-. rt 2-: ef i ft <k c . ` 43 * i *e in ;V j#> 5 j c p ip ft | 0, iC JC ft* V -r-i 4tt; f tf ft , f - ft -I *( - # .^1 0i * * <& ft? ttft f t m i * 03* J > J # if 2r vs*J K *> O e4 i fl3 Ai c ft *--: V ft a s i{ ;-i k i f t ;; 0 i m t> >. SS3? -7 * . a rs '.: i* si - * - '"r a V, i5 5 V **iF a *^- - " *# A 0 S31 ft aft n v j 3? & $5 * ft_ , 4* m IN g # 3 ? WCD 001047 I V- f T? M M ->s O -: -; Si. -- Ci dl* .fa*E 53 ** 4? i i f # - > . O %$ t& & '* 3o * O e *e * 'i- i '. -'*c>5' <u<?<-:T .di J*Z13 %* *t* 1 1$ * 3V *159' L * "D <o%*jgt V .~a**5i % eK * -ifftii Hi4c* K >#J*l i e -CfGi 42i*a}* <sSfsr=1K.7* 4rmb 03* Stw?. tci* i <o*50 * T.* 4? <!5i V'*3>>; s- VtI1i .K ai; vft T:fc: 1p *.1e5 I*-* * 3Mt *> < 9wp 5 4ep *4Ve-C o te %&*- Bk dm#> rM' is :a-1: rx*<;i Bc; 1 fe J4o? ss:Ce` <5T-'a' .5 ,0Ju VMOM-> i mi Ahca5*Si3i*, 51 *a: <&=!**! -<id**i? t$ 1 5l<?i aaAf-f.?f'- >* -*i!E *nf*** in v sn. '<? V. 5^ m*r-rc,: "# tr i*' g S?ff * t*` c s. < * a > fc 0 S5 ?& e * V C c *r t? K * i & > ti *) W X sse m * - 4> e< 4 *$J K *s .c *> f i i* sm 1 -; % * m i* 'j a * >** : . m 1=5 ! o * ti c `*K Si 13 I ! 5 US -C *> !.. n <iw.. f I 'i!`p.*Z *0 h f! **, !SS D Tj- 1S 1 CI ET g M w , 0 X1' 1 I--* ff1i7* a>feil % jSp 1S*is <33* * e*"*<*i * wBof: xf>i ii^- 4cti* 5E-1Vwje:I:i i-/' 1 ;: 'fEa <"9Si T;q: ! i si it <U*Jr. 1 .iiw-I\ *.tfft?-S. * % i 4Km1Vm: - ' r* Vi -e-5 -f! 1W? '4#:fjfi '.*0V; w r-wj *y4 %ir iMy -r*s25<* &' s ? 3m# ---; t5siV.r>.1ir & * pf c*?> C S -**i # Sri 2 0 i a`-s.7*V A< c_f--*i> vdfrSf '.t %fif w .> * i-*w:'S vws.5ISa>* 0T t' <-fa>f) `A*. T* --. ^&f- t*- o S O *1 S^*r '3 1* 1* -8y- WCD 001048 4l. and e#*nlnqi t *sur# thnir ontimn? ffctt*** and Mntft*n* ai 3 41 ! afesssid fe* tnspnctsd wWity d *hS re*l rsn.tJ.nr prsvsttv einnane sir h*il not b* srnelresUatnt into tim workpiscs* 9*nfc!tation *y*to* mir poOutton mHUtiar.a. Ccataalnstntf * ja V 3 s S 3 % 2 f * 1 ft SJ k-. 1-J *8 1 J i*i SS. 2 3 (*UV?' -8 tr`-: *o8 *2 J*c a ^ C' >*> "'Si^*8 b S? Mi C* st i J1 afl *C * 1 ** 2 `t? j** 8 rw i*fi tiu 2 iw f .- a 1 * s ! s .05 ,f t I f i sf w0a H fr ' 5? 8 j 1 : M s 5*4 -*v-?f O *r 1o * JO?. 'S 8w & -* je I 3K :?4'1 fr if %8? JT M 3 S 11 1*r * z*T *> *> f* *S O ^r m to -- N SV - - *n n Q "5 -*r -* -dp f* i ftftpiicfcbl J8l statt* Md 4)tt WCD 001049 ts tAhsrltftd (wpiayM*. h ts p m t m H k * t lo *t*r **!# *nd URRftlt* shttA* fc eontroil*' ?J2 H iK T SAPT , * s $s X **! fc C . I *SJ J I Ir n V, X C c i 8 fc . % ft V E S i9 'A 5 V w3S* A3 t # 3K O s o ; . l .1 .I2 sTI % o' Vt ? li K *0 .? a 5 5f'}t^ 5 s in * A? *tg Ai * 1 .* J j 5 ft 8 J Mft 4&J ? > > f p.1 > J 4 O*M? mi ms> B OZ Jh& C 8 %wn> <6 *s "3 ss v s A* M E o S 9u r -fc, & :Lm'* -Vi *> 4 $ V V:mji vi mft* -e *? .mtiJ; V * e2 S % -'? f - i ti 'S* % e s # A*s* ?ig JAi*Zk5' * wV6 <4* V* <R' -OVJf p Airsy V i* A'* 22. rr*- etr. f 'C*':j> t*: u**m>. 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IA O u 2 8 S e a Q i j ci O u * ai 3 >*r* * O e et s cm U Ci Kl S V VI 5c* MJ o A i O h <m0m IA O U M W O )& O >V a c u eU c i IA C a V c 0 ci u -- IS 3 U u3 3 < VI T as ?9 or !>c ei t* IA s tz Vo in VI 2 m mm Tb o Go c i T5 3 o o u Ho o 0 k. tfr C ' a >* c u s 22 Vt G V. <* G --4 3 V. V r VI i !*J 3> O C 9 ma q ' ' u --1 w u 5 T5 <V c? C 19 Ho in e * ! a -- u G 03 *1 -Co 'S VI 0 0c cU 0q O J V k> VI e Q* V c !* O. itj 0 <SL c i IA ! oi V< C mm C H rt s O <s) C a M Ci k. 0 w e GH a '- <8 ? L a u cm a Wi (J * <v 2c .* m K W me mm 0 2 o TJ u e 3 C0 a VI a J c n n *A 0 Q 3 V VI G C s TJ J t> w N 3 O o. 0 --r: <8 SRT C V a X ci c ? O O G* IA n mm O 4) & vi 2 . K 5* & 5> tJ MO M b e 1! i a a w U > fj! S W (A M MO IA - IA C 1,, 13 S ci c P . V mm et e O U J 13 C Ci (A X i 4 t VJ C 5 tf M < <n VI o- m u W o* k. k. er 5 mi H C 5 u U q o Ci 2 w *C mm iS u >. J VI C fil S O* ** t 2** a Z p Ti u im G. D Ho 3 a & <n > a k $ c C mm c i t *v 3<3 O mm O bl trj ci C O VI r 0 > 0 T* TJ w C c* VI & --J (A u 0 c mi w VI 3 9 C Z IA 5 J Kr C S2* IA O 51 C J5 KJ C 1 Ho w 0 oJ V Cu e t a mm a q e V- e <A 0g c IA s U * io a e o s VI I3C IM *" \i .1 13 j i 2 0 . a 3 <*- IA *53 a <U 9 Ci O 1 VI U 5 ** c VI I ri* P 'S 2 r o , a* e e <: H1 O * to ?* O % --: 9 ii art VJ w O S O a X V fi) U -- VL c w 0U OE U c Cr) ,3 2 S VI 3 Cu 3 a < OJ i jy o n e1 ?.a 0 q VI ci t* VI 9 aS J o4 3 9 02 r V c i <* a u> ** S* C !. n o fl P a W In 3 t / > n i <3 u 5 <J G w r* e n a C O C o Ci O IM mm Ho V 1 0 < 3 e* fl TJ ci L O O c O w <1 0 O V H -0 '> IA (.1 Co O <3 1 3 y IA L9 S c- C Vc Gw Qr M CV 1 a c k VI V3 <3 o IA 9 !w r t u -c <3 J U MJ 3 0 w O b VI C? l) V) 4 <t f C m' U 1 C 3 s) b U 4- N u u U ; C? 9 a O W 0, l, <9 3 o ci <* c2 w> 0 U> CC --0 H -- Q <y S fi > aS - hS f U IA > Cm 4 Gl y n C 0 C *9 u c O S ii ij a o ja >* O 0 *3 a t . > * 3 O '.y ' fv PJ 5 C V A*l un a n un ry n< s `5 o * ma <N n i to rvo tn s s rv '4M Cu c|*rs r*n 3 IV m Up 0 ro p=* s (e AI *N fV WCD 001076 r * CIO C*. M amg CP CM* no caci Cn tm emt CM> C3 %** ua DD <j -- '& w L_f UJ t> <* v j fcc> so o O Ci M a X oa ft ass & V 3 s i 3? 5? U fw O O K k l W , a* 11 t i Ul M -- c * M <Q:* O 3 fif ft * i- ati ,Q to* n v' r* ft fit * 85 ft < $ e if' ft 91 it r^ ` A 0 e v; re C 0 'S 0 '*5 415 t na ft . PI K O* -> r- > fr r j' -> P P ft N P O i r ft 5> tei- 3 80 Aa P n e " i u S' y *-1 {* W ft 0 4a % A r y f it 5 D 9 ? Oit -t rV r i o . w O i f f.t' f4St 9 > a ** bl S ft M ft O *fo S ft fck f i 6 %3 '* D IO 5 O t* O " B \ ft 'S & 5 ^1 10 1 M ?*? 1* 30 cc K j rs ? *0 =, 4 LH ft ft CS f \ itr ?*> lsJ ft a fc V 4> a 5i <3 0 *s i: *K W 2 <5 & -1 r * (A ta . f*> w 5. 3 * f* i\j V & s> `-<1 T 9o c t ft oa so ft 3 r* r* ft ?d toj 5 V & ft !>* ts r ' X A > 0 o in i M* *c t * 0 o' '1 o fl! <*> Q 0 ST p> O ft ftc=j ft ft<*- S7 ft*T fit 3 0s 3 .*i ftg t* ftCJ| ft 6? 5 V*? (U ft 2 5! o ` ** ft? 3. ft 1* `31 a <* ft s ti Jg fat - G ui r> <v n * 0 M r tj n 3 a; fi) fr ` . 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"" s 4 ** 0 *** i ' U *0 " ft O .'3* ft ?? f t w* *< ft ft T c O 35 * .. O ft *> -j g p* <6 *. *rt 5 fit r "i r> fr * 0y *- 5 0 t Sfcf- a o n rJ *>- ? . TJ fi C ft ft 0 t+ t!j 9 ft *% ft s ft fil f t 0 o 0 ft l>o y 0 *0 M fe *1 ft f t M XM `/ n t:0 & y A "4 :*C. e ** ft r W 0* CJi tx w *w s- o fr ft Ui U5 fi te % (1 te M T Ut et >S- ft sr 3 & ?9 8' 5* 3 fit 1 S 0 <k a "1 ft `J f t rt * u * WCD 001077 fAl.il n w s r I>iw:-T s llf i'iis iiin c a p a c ity . th e t a l c w o rk e rs h a il a {.an o f 2 t . 2 ct/mm!S.j/<tiinsttc find !3 !4 this c o n tr o ls h a d 2?2 cc/iitn llc.4 n !nu te 0356 H O vn tq Q no g ra ph l e axagiil n a t io n s r e v e a la d t h a t 56 o f th e <3 t a l c w o ris a rs h a d C35 7 p o s i t i v e p u lm o n a ry I n f i l t r a t i o n , w h e re a s nano o f th e c o n t r o ls h ad s u c h ch a n ces !3M5 3 6 1 . Tha a u th o r s f u r t h e r I n v c s t l r a t e d th e 05 f , e ru n e e In c l i n i c a l fS n d in q s 5301' a n ti uu ia o n c r y f u n c t io n c h a n ca s b e tw e e n th o s e s " p o s e d w o rk e rs w i t h s n d J t h o u t E32i p u lm o n a ry I n f l 5t r a t i c n . in in c ld e n c s s o f c o u g h in g , la b o re d h r s c t h in g , Stmq 3322 t r a p l U I S o i i A nd c lu b b in g war ro u n d t o ho s lq n l S ic a n t ! y h ig h e r ( 0 o05 P<0.0(i> 8323 3n w o r k e r s 363 p u lm o n a ry i n f t i t r a t i o n However,, or.:i y v l t e l c a p a c it y a n d 324 d if f u s io n rates tie rs s lq n l i l c a n ts y io n ( Q,,01<*P<0*G5I In th o s e S u e lftr p u iito n n r JI,?6 i n f 15t r a t lo n , The e o tiio r s ta te d th a t a s tro n g c o r r e la t io n as n o t fo u n d 5326 b a t w ain pu lm o n a ry fu n c tio n m aasuram ents a n d th a c l l n l c e ! , iroem t c a n o rra p h l c , 532; a n d s n v i r o n c a n t a l ` SnrlSnqs. 6330 Tha p u lm o n a ry v e n t i l a t i o n f u n c t io n o f 2 0 t e l e war Stars whe h ad d e velops! 833! ta lc o s is o f th s lungs (presence o f p o s itiv e c lln ! c e l and ro e n tg e n o g ra p h l c ! !3B!,1332 f t n d liw s J was a ls o I n v e s t c a te o by K l e l n f e l d a t a l In t h i s st:;r>ys a l l 1333 worSiers had hean exposed to t a l c d u s t a c s ilv e d 5 th a J n a re ls such es t r e a o t l t a e i33<! a n t h o p h y l51 t o , e nd f r e e s i l i c a f o r 1 1 -4 0 y e a rs le v e ra g e 23 y e a r s ! a t a 3335 s c a . c iA t r t lic n a sca e d ln ; 50 o p fic f <5. 3 u r / c u ta l. Tha p u lm o n a ry fu n c tio n o f 1336 th e s e w o rk e rs was a ff c to f cs in p re v io u s s tu d y l3 o j,, end thsi t e s t s In d lc a k a d 533? th e p re s e n c e o f r e s t r i c t i v e o r o b s tru c tIv s s b ra e th in q d is o rd e rs ,, a c c o rd in g to 5338 th e a u th o rs ,, 4340 I n a n o th e r ? 3*1 U r s tu d y i W l i n l W a 16 t a l c w o rk e rs w it h d l f f e r a n t 8342 daqraas o f p u lm o n a ry f ib r o s is I In d ic a te d b y ro sn tg sn o cra p h S c fln d ln s 3 are WCD 001078 41 WCD 001079 1A l.C - Mi'!' U ilA i'T e c a o ln e o . Ih e s e o r i e r s , iV - au y e a rs D id (rae.in 5 4 . U y z i r s l , s r s e xp o sed 1344 p r i m a r ily to a t a le a l ra* w ?th r M o llle , a n tlio p h y l 11 te , s e r p e n tin e , a n d la s s |3<85 th e n 55 f r e s s i l i c a f o r i 3 -2 6 / o r s a t a T.1A c o n c e n t r a t io n o f 4 0 . 9 m ppcf i I ! . 5 [347 a g /c u o > . A nueshar o f th e s e w o rk e rs d e v e lo p e d la b o re d b re a th in g and Im p a ire d > i8 v e n tila to r y fu n c tio n nt d iffu s io n c a p a c ity . S352 Thn s tu d ie s o f K i s i n f a i d e l a l 1 3 6 ,.ib ,3 V | in d c a te th a p re se n c e o f 353 ra d io in g ! nal fin d in g s o f fib r o s is , v a rio u s decreased psdoonary fu n c tio n 1354 -s e a s itre n e n is a n o an in c r e a s e d o c c u rr e n c e o f c l n i c a s s i m a a n d siymptoms o f 5355 r ip s p lr s to r y d ise a se In w o rke rs esposad to t r e a o l i t l c te le w ith a s i l i c a 1350 c o n te n t o f -SZ o r la s s . H o w e v e r, th e s e s t u d io s la c k I n f o r m a t io n c o n c e rn in g 1357 sm oking h is t o r y a n d co m p a riso n s n l t h c o n tr o l g ro u p o f a s im ila r c o m p o s itio n a s 1354 th e o o r t t e r s . The la c k o f s l r o n r c o r r e l a t i o n o f p u im o n tr y f u n c t io n I3 o 0 Boa s u re (Dents o f i n d i v i d u a l s w it h a b n o rm a l c l i n i c a l s o d r s d l o l o o i c a l f l n d l n t s 1361 i i j h l be e x p la in e d b y th e lie t e r o g e n i c i t y o f th e sa m p le p o p u la t io n o f w o rk a rs 1362 and th e s e v e rity o f the p n e um oconiosis. 1365 S i l l e r e t a t 1321 In (> 7 1 r e p o r te d th e caso o f a 6 2 - y a a r - o ld m ole who 1366 cie a n e d v e n t ila t o r s th a t c o lle c te d excess L a ic d u s t (p re d o m in a n t! y p u re t a lc 136? 5 th io u e tr a c e s o f a n th o p li/1 1 1t e l f o r V y e a rs In f a c t o r y t h a t p ro d u c e d 1368 ru s h e r condsm s. 1370 E le v e n ye sra e fts s r le a v in g th a t (oh, hn was a d m itte d to a h o s p ita l 1371 c n m p la in jn c o f n c r e a s l n . l / la b o r e a b r e a t h ln r 5 w h e e z ln r , c o o t h i n e a n d 1373 s tip a c t o r a t to n 1 2 2 1 . t - o l l n x l n c h o s p l t a l i r a t i o n , p r o g r e s s iv e c o r p u lia n n a le 337`i d e v e lo p e d a n d th e p a t i e n t d ie d a p p r o x im a t e ly I y e a r l a t e r r t f c a rd io p u lm o n a r y 1375 I n s u f f i c i e n c y . An o p e n - c h e s t lo o n b io p s y e x a m in a tio n p e r fo r m e d a f t e r 42 FALC l-IHtH' DWAFf ! w $ j i t nd rnfionM funse. fay S73 s p l i i i s l o t t iiftd a u S tifin e S e s ts ii j i a n t c Jls surroM*fccJ b y h l a { a y t tf o f WCD 001080 ificn forseU iti-? * ctoni hs and one io r 40 and a n a th n r io r l ALC H i l ' i f 0 A l l h f i r s t c s t n ic a i s?rr>s a n d sy&iptofte o es w J l t- A feJ 1 u< PI 5 ( r-Mj, cr 1S> f-V a 3" ( pp o0 ft*5* to Ig r 1- "o1 S' W to s ft 2 to G ft 8 f t i C __ r: G r. f f V) to o s * ft b i* & - r? 3 3* *** O w ft ty 3 *os **? S' * Ik' S ' r; ta e G i r* r> o e f - S* o ft 0ft s X ft mn ft <*>j> ft? --u t & Je. A A A a u* W L i w (* U i U a r-d IT A ? * " 0 ST f1 - -ft w* ru f t f t 1f t JJ ` . ft 7 * ft to IS* N , w * ff 3 =i 3 k*> a ft K to 5 ' t 'f f t 3S S s l* *{ ! o G 0 1C-* fts> 2pi ft $ ft 3 . ft * Of! ?. fi. ft fr , ? ft 33 t-f * *iJ> I 3 n f* "i pc< a ft ft) *s* I'* It- 0f t f t 3 0i >< *v .3 G VC 3 2tft Id 13 ff s ft -. ' O * 5 f t r-3 f t r* eM 3 r iSf- V. 3 m y *& <r> :# 3 .5 to c-- ft O 5 rv z. ** ft w s Sw S 3 p) to- r i *o ft ft & rv !ft 0.* V ft 3 1ft ft * 9 C f i e <**> ft a 1 3 f t f* S o ft f* ' m 3 ft M r*r P) 1S ' C--. c* 3 ri sr o ft 'K s *f0tt. ft -- 0fst 0 3 0 0to to to >* Vr Q. r? VC n ft K ft c S *< 3 VI ft f t <c Q. rr O rr ft 3 > p 3 ft ft 3 ft 3 l f t <c 3 ` TO 0.t! jc* rG ?= ft -<% 3 Li n> ft () V f t , P* s r* rr X) f t 5) r> to s r c*. r * 3 to Li f t to fi. & f-' a 3 F-> CT* CM fit y* r TO S* f t O 5 S- fi) r ? ft r ft > (* a ft T8 0|gf r? S' * tmm ft G o U) (A t w (* ft 1<< w U ft 2r? C 5 0 0f t f t *ft > ftB f S ' 3 w V ra r* ft f t 0 B & i S 71 A &A AA w *v fw rv V) 3 c C- > A l* 0S Q * ft a.- f i 5 ac Sii f , * fi' o urn f t ! *A j* f t ft to V. W 2* 03i> C*J fi. 3 rr Oa 3 o i* C?" V) " *r.> oc f t V O ' 3 J*r- 0Q e* c-f ft ; Cmk IS ft fi 3 a f t tSrt G ar to H w r * a 1* *' I 1' 3 5) 0 ** ft 5 0f t ' to ft 6p f 3 o O F> to ') o C. f t f> S ' -- yr 3 a -4 ft Cl t" " e s U (A 5 fs 3 Q. S' c n vJ ft ,> ft W 3 3 5s f f o *u 0fa o *5 to C taf ft 3 3 0J* i l fe> P . o u J r* a P* 05s g V c-> a (A f VI til &rs 3 n ft u ft! W 3 b V 3 *0o CK s? iw to Gw a (*> po %. -- w to c-- a e s 3 Clf ft to ft a3 o D Ul o a * to f-p w 'J 3 is to f t to CC M 5tu i ; 3 tJWz to Q. A i b t7> o O i 3A X* tH O3 1O S w o* D c*> mmy uo m m t i-> Cm A K> A A IVi V cm c am CS AA A *1CO Cia ' k? '0` -i fCMt J ft. ft ft ti Sf t ' 0" n rr to 00$ ft n to y zr rji * 3 to ? 3 fr yCy.s 0 >A 3 <* 05 f i 3 PL fj 1 00 to X f>t fp ft ft ft to rv t-o D 3 c U ft it ; i *> O 'C Is vi w 0f t a > t ?to frfc *o Ol fi 3 ft **J f t t-- tii S 2 . ui rr 5 ft LB 5 Mi vi 9 3 to 9 ft fti * S to 3 fi t 3 C -> f ; K rr f t. to ft ft9 sr r* ft* p* 3 S' to f ft % to O -* 9 y fi *- 3 G 0 2vc rm> to rm 0 to 0 03 f t fi to 'S jo s 2rt r* * * CT " r* to 3G 3 rr 231 C a .t o FB *"* 3 s 3 a. to 0 ft ft tt0o a3 f t 33 20 * 0f t Cc--> ft J? S r w* 2r* V U i *< S* fi TO 3 fi K to <* ftrm F> C w rr a S ' fi r> r 3 c. 3' C ft % fD 3 T O n Ffl f to 4A Sr to 0C < & m to 0 Uft ft " i 9 r r r ?ii V. f* u ft 9 3 ft 5 X5 .V 0 to3 f t 9. f - mg 0 ft ? ft fi fi) W a < ( <Z to to t* t ft to ff. s o > to c XJ 3 1* mm t< a m *** 3 " * f t e V s ft V? fi 3 & 3. "i iS V f Kr ft t* fV ty n o te to . S> *.i 0 O ft Q !> fi <5 a f s S rT 3 0 TD C ft J f3i: 3 r> to o c r* c3> 30. i S 3 i ? St WCD 001081 TALC H w:T DllrtH a l l ( h i *s* <ree o f a nem ia ( 4 1 ! . t r y t i a r o r y l s iii o r . : e t t o n r a t e s CG lilfs ; / h o u r w e rs !44& .letwssn M e n d 3E is ia i'n r a r a 2 2 mm) f o r th e e i r f i t u o r k e r s w it h s i * o f th a 8443! s i g h t weSsras o f th e fcSHs h ig h e r th a n th e n u rm a l v a t ., o f 3 m m /h f. The 3450 S n c irs s ss i n ESRs e r e on i n d i c a t i o n o f it s . T iis damage t h a t Ja n o t s p e c i f i c f o r i-SSi p u lm o n a ry l e s io n s . A l l s p u tu o t e s t s f o r E y c ohacterioa t u b e r c u lo s is e re 1453 n e g a tiv e , 8455 A ls v 'l s a to s e t a i 1411 c o n c l irle d t t ia t exposure t o t id e can r e s u lt In a 9437 p iM U M M S io s U w ith Ju n o fu n c tio n d is tu rb a n c e s , w h ic h th e y la b s is c ! ss e 143S a te ijn lt- a p r o e ra s s i we c l s e n s e a n d t h e t c o u ie i I s c d t o p u lm o n a ry f a t flier a n d 945? d e a th . The a u th o rs o p !n o d th a t th e ` tio e o r - li!te M appearances on S -ra y f t i n i o f 3401 th e t h r ^ a w o r ito r s a S th s t :j$ S i! p n e u m o c o n io s is M ars dua t o t a l c o b s t r u c t io n s 3462 In th e b ro n c h io le s w h ich caused a re a s o f a te le c ta s is . They a ls o s u o ia a te d th a t j 46 0 th uncquici c!i s t r lh u t io n o f oaysen th ro u r jlio u t th a I istg parenchym a was th e 5465 p r o t iib la cause o f th e h io h a r t r a n s f e r g r a c ils n t in tro rS e rs who had 3"'i6 p n e e ie c c o n io s t s ,, They a t t r i b u t e d th e r s p i d d e v e lo p m e n t e n d p r o c r o s s io n o f i `i'P3 pr.b i tsiocon i o s ' s i n t h e i r p a t i e n t s t o th e h * c h s tm o s p H e r! c con con t r o t Io n s o f 3409 t,e ie p a r t Eel as w ith e d ia m e te r o f 5 t u la o r le s s d a s p ite th e ebsence o f fr a a !4 7 0 . iJ 3 c a In th t a le , 5472 i n JV7o,, Ei-G haW db] e t a l 142 1 r e p o r t e d th e S n sid a n ce of p n v u tio c o n in s !.s 1473 among E g y p t ia n s e r S u r s e n g sg e d I n th e m il l i n o o f a t a l c . Chen! c o l a n a ly s is o f M 75 th a te le s h a n d le d in th e p la n t showed b b .H -n iZ s ilic a te D ,,3b-5.!>5* f e r r ic 5470 o s liif f , 5 0 1 - 1 .Ob a lu m inu m o x id e , 9 , 5 3 - 1 . 7 iX c a lc iu m o x id e , 0 -0,225? c h ro m ic 477 o iiid o e 2d-33.335 ,-S3qnaslum o x id e , a n .l 0 ,0 2 -0 .1 1 1 * m o is t u r e . The t s j c d i d n o t 4 7 ? c o n ta in fr e s i l i c a . A n a ly s is o f a i r sam ples ta k e n e t th e b riB lts S n ij zona o f WCD 001082 4*i I ' P * -iJ u p 3 o jd ; 3 } 6 j i i 9 (negjnp *tjio <5 w yj o 'ju f j-jtie u ja 0 1 m ftu o q ; s i s (s KSs .bfi w orfecrs in v .* f l 5io worfe e rs e s w m I o i b m i j * t c o n c e n tr t io n s o f 5-11 M't 3 9ki CM c. 4g 3 'O n3 1 f> ftT. a "I t-.> CMM a 3 r.t ,7 O <S S VI ri n 3 Si a. ,at s tr> S 0 *; n y> J* t> *1 o> 23 ij O 3" 1 n w f. C v K 6) * r* 9 fl ut -- * T " t y 5 2 ' r 5 C0` ii 3 a ? H O a t--- * k '< K ti c t <5 a p w* B *3 H 3* s* 3 *nv 0 Tt O <* f*3i R: 3 S 2 S IA & ?> 0 F* S? Pft- fi * 3 w *5* G sr A Ci sr w f .' 3 1 K| > a (? j 3;- ' V 5 s 3 Orv. *W wt-,t S O tJrt S 2 S So* so i B Jk CNi *c 9 * <LT w a ** o O K> O X m r4) &* ec M 0t Cl 5 * Sfi* i 2 fHSfi* t(. ta *T * 9 * rt*s> J 0 >?! 'GOw *5 S * *a*i &ri O*in3 ftS y n l? ft*- 59 Ci fe) fta*? ** >9c* fS fe o<9*-> *% UG fe 3 a V < *3<f0 CL a c?f* "11 &yL.3O ri- 2 W r? UC i y S* SiCrw`ii c30"S3I '< St f 3 6t-n* 2 S(Cl f- != PIA $yy r <T7 f9 ** 3 & nIA Ba* & * 3*a c-> *rw it H J. JS aSr nA n TT IA jfi 1C a. B USI 3 rv Bl jfy-' r y @ s f iy& s IfA? o3 S5- jj 5 5i *< pr (*< O *K%M ; 3 35 c-s o " il r.,v *7 3 *r "* 0OLl jb 6 3 'H SMf*i' C " 3IA S <t oIA s?e*r $a o ,;ti 3 C9 9 a -i *2 r? Sn O us 5r-- tr *.ki (rA rr IA 9M w 9 IA n Ji r/ 3 eyt . IrA> 3WS)l <#* ?S i 5 (X .f'sS*' ?n s S f"y1i P1jIgA$ P ev> r"cr y s V yCilrO a ri `s 3 *-J1 fVt W2 eu r aO str. r o *j Cn 3 S >3ii Cfiii rG*Ji & S` "ari- s*r-r " p" -< 15 i *r* nj; 5> S $Opi " c 4iA- G 1) u 5> fV 5 c? 9 cnr* a c '0 O(3A4 (A 2 p y o V* aIV S; & h* e> n a f*aA yO [5l Sv {i. V, i li P Uw)t W fi 0 ri WS a N 'G w < p0 aC n *1 c* A (S S- sr aNj MJ tf. W FP im W Ut ** s c a ' SP -Si 19 3 K3 U -3S Otr* S il; Tt r-*i 0i-:> r* lii E U *^:i o ii *;l IV * e IA en* Cl et fi) Cl t9 Cfe *D i O *> *< W IA 2 rr y Si O`-a -,te> f y 3 *tt"Val. o*SIV4C U 3r *s IA % *~ t 13 pOek PIA 25 10 O3m* O o I*A" O'i* IA o CP sr G3 "a 0 r3c 0 o G i5 r* P0Ni fi rr n3* -41 fil & S. CM a Cl 3 > C> c e w & Cl N 1 tf P *t .n *> f! * & % " r:*i; i * i "1 y <!aa e S f 3 & O &r f- |V- P" ii Si a .*3, A fyj ft Q 3 *---4 fKi* O ?-? i e. 8 C? C* n I 'ir r/ ?J & f "O3 W ' ty i c "i il PH O fi &ut &- i *3 5r OMl a* i t-- 2 y "1 PJ 3 N -S 6 i & 11 O -1 S 0 ; * <#c 2 S O- y & ce X G u> iv> s S s V s S- N<Ce 't? @ *0 fi G W fi r> * i 4 A 5 c t-t mr* *t-< y "oh t*> o= lil VI ?W C 03 l kj sr yi t il 5 fi(S n K c s 15 VG5I L> u> G a 3 *1 ? <15 c fV .4 * On i < 3G r* A* a <&* o*o a t** 2> 3 fi ** 5) S 3 f c? c* *1 ><Kr* P II y -? e 0 B 'tif.w 4 P C` 3 t<- vr 2 y O #i>3 i-r G 0'. a B c,4 IA VI W i m,O tWw <" jnJ >: ft! *5 *t2i 3 ya ) a aG a y2 a i ye n G JJ N# a G c r i *HU5t GGO(A zR/i a Si O~Ct rGy* WCD 001083 ALO FIH bT UHAFT a f c r e S m iaae> r r l t a n f c , r e s u l t i n r 3n th a f o r m a t im i o f creme 1ornatosi S5?5 ** o ns 243^4 e4 5 K The n n ly ty p e s o f n n n r a s p lr e to r y o'aresi.omas i t i s i a re I5JT HScaSy t c ba o f a n y oees.pel io n e ! co ricam o hoHwvarg 8s a sfcln grcm ulom e o f th a S 3 I3 iy p s r e p o r t e d by T ya cst s i 1 4 5 - , Tyo e t n i r e p o r t a d t i m i a 4 5 - y a a f - o je t "o a n !;>2R c fc v s lc p e t htintSrets o f a ie rf m iIo n ia s on th o s iilo f r o c th d s i y a p p l i c a t i o n 5521 c i teBccaa po&Hisr i o t r a in in o e n d ` n e l snd b o i Ss on I h * o h o u K fc rs t b iitto c te s e n d 5323 th to h s . T ro n s a ls s io n a ls c tr o n m ic ro s c o p i and i- r e y d iffr e c iS e n c o n firm a i th 5522 p re se n e a f t e le w ih J n tlw crem i lomas 1451, Th5s cesa s u o n a ste th a 5525 p o s s i b i J l t y o f f e n ili orna f o r n a i lo n In v o r lt a r s l l h o p ir , s k n wauncis. Tha. a ys I5 J {- t s io n M p o r t t b j Slancia e t si was f o i w l Osi 5 m onti! c d g ir l Th#ch i is! scs 5527 a seaS ned i o r hypasr ila a a m l h e m o r riia c ln s o f t h s cor, M m s ! r a ai? th a I s f t a y . 528 f it t it e la r o s ts iiih lin c t e l e e n d a l n i i a i r t o th o s o fo u r .d In h a fcrby p riar ;:s d nn i53C ih in iffiftt s fa fo u rd in th S a s io n . l'ha suthors > *|la v d th a t th IssS oa was 5335 casiscc* by s l r - b o r n a p a r t i c l o s o f b a b y po u id or a n d p ro d u c a ti e s l a i ' l a r ! s s lc . i In SS3? thre f o r a i x c o n jo n c t lv e o(? * l'a lib i t b J t h th a b a b y p o w m r 4 n i . 3535 a n o th s r p a t e n t i ! r n u t * c f x p o s u rn t o r t a l e p a . i i c l a s i n v ie in c a s t lo n Sn 153S. Ih e f l i n t c r i r ra s p r a h S e e n d n o n r e s jilr a d ia p e r i i c ic s t r e p p o d I n th u ic o tis '5 3 ? S ic r a t t n n s o f th u p p e r r a s p l r s t o r y t r i c i . The o f is c i. a i t e l e Sit th htsiacn J53B d is i. s r e n e i tn c w n f x i t 3ii* r e c a n t iy b io n th ssibjesct o f s p a c u le tio n ISSI h fl-rvstion s t u d y o f i jsi e d In s to .) m o r i s t i t y f o r sto rn a ci! c a n c e r i n i62-> S542 1003 sho a sd t h a t Japanase ie n hesl th s h l^ h o s t in e iite n c s o f s i? n e t jo n s S'343 ss mneh fS f tira.'S U l t i o f man In th iln l t i M l S t e t s s 3C8E, M atStf e n d J 3 f'} m i f i a n t J<apan*s consume la r p s r p ia n ti t l e s o f a S c -c o e ts c i r ` cic e n d th s 545 in c i. is n e a o f s j c s t r i c c a n c e r p p o B rs d i o h a e s s o c U t u d i t h h s fe c i . 8rsi>d WCD 001084 4/ WCD 001085 a u . h u . r w a f t on th e s e o b s e r v e r io n s , a r t I s s 14V l h y p o th e s iz e d h a t th n c o n s i s t i io n o f r i M f * a t d lif t a is t e c o n t.in ir u csbnstos as a c e u s e ilv fa c to r o stomach J55G c a n ca r B5S2 SetscSss s t i l i I 4 t f } s t a t e l i t h a t U l e a p p e a re d t o t p e a s a n t ors th e s u r f a c e s 8553 c i' unwashed te ic - c o s ta c t r i { * 5 an t i s u rfa c e s o f Hashed a n d soafeed r ie n t , In 1864 Rh wash wsissr f f m th # r ic a a n d w i t h i n t h a es 13 s o? i t r l c c a re js o n e s fro m 555 Sk J a p a n e s e p a t ie n t s . , !'he a u t h o r s s t u d ie d th e s t r s C iir s cr.ti c a l c ilia t e d h a " 555? eie o e sS u rs-o -ss i con r a t io s and c e n I r r e n t h a t th p a r t i c l e s i'roi tiw sa S5 58 sam ples r * o a ir s a r caw pos!tdan> s o rt h s i t# t a l c fo u n d I n e a n o s r c a l l J5S!f specim ens catta fre ts t o i t lo q a s t w i U h r i e * . T h l* -fnsSnt} sesee io su p p o rts S5d0 t il# h y ; o iK ! if a i K s r l is s I4 ? { b u t i t h a s tosen ri4 a d h y Poola-y e n d S is x a y t 5 8 3 I M I on ih # round?. t h e i t h * e a m e s f iw a - io - s liic o n r a tio s - usar; by te ts u d a t } 553 ! ` ! i o - d s n t t y i a 5c He.?2 n o t c o r r e c t , a n d t h a i th s m o r p h o lo g ie f e a t u r e s o< 5 `i th e s p h s r c a i p a r t ic le s c c ' e d t a l c b y 'ia ts o d o a t e n e re s c ia r 1i y 55 c h e w c a r js t ic o? s ta r c h r a th e r th a n i s t e . F u r h a r r ? rc h is s i l l ! r e q u ir e d I? 06 c o n c im in e th a t.lo o ry o f s tr ie cancer enonp th Japanss, S50P T a le p s r t i c 5s iw r e iw e n fo u n d erjU aiided w i t h i n humen t is s u e s o f p r lm e r y 578 a s u r l t c , s n d o s s e ir ic a i, a n d c e r v ic e c a r c in o s a s S>y H e n d e rso n a t as 15s ! ,, us in 157B i s K t r e c t S o n - r e p ! ! c - t Jon t- ic lm io jiie s Ja m e th o d s o r p r e p a r in e tSS'Si f o r 157J e l e c t r o n s s ir c -s c o p y * = The a u t h o r s d id n o t c o r n a n t or- h o th e i s t e s a y h e ve 1575 reecv-5 th e o v a r la s a nd o th i-jr r e p r o d u c t 1vs- t i s s u e s , ito w e re r , th e -y su p q e -sta d !5?<i t h a t S n d ls t So cuf. s u a b le c h a r a c t e r i s i S es o f t e c i r o n a n th o p h y M i t a e s b a s to toy S 5? issa c tf t h i s te c h n iq u e e u ri* i t Im p o s a Stole t o i n c r i s i n s t s t a i e es ih p r im a r y SSIl) cause o f th e c .-c r,o s to u s c h a m a in a n y Of th s t s s a s . .I l ALC H R '. T OUAHT a m0fil 4W9d 0fi 9OwaaOn mOSCOrii S$ 50 >0v> (#mAi 3aA Ko40OEMtM*>j5 rJ: ? *S i '-0n nI1' c v'*^,: [ *<c>tt .S I j(*Ca MM--i(.dS-jJ5 Ti#>,: *5>u *UCSo?l Sw ta rbOM5a=*** 0 c c 0c* w M*UF/* ChfOOUt. XCfCai*i "0 5 <oKA1ii%*^rd-?:el5i?,). *- *Cm *h0L54>,. >-1 O t/J1 c-a *S *QCCl &v *t? 's eT *a*r*-l) 4S-* S CU "cC IUcamji *r: U5 r-t ( 0O5 C>3 tn O ff****i c Kl 3 U2C VI fi lieo5 *3 c--k0a6J.i ? ^t5i Ca C0id <0cnJ T-\;e1 O2* --c **J5 A0J "3 rOKS0. AG0St* 66j '1UfMIr5iF* t!-j cG=3 SJ Woefij r# J3*Sf I0Cr>Jaa <rGd! ;< G0fi --> wU l0a1 1 m<ft5fod%i. --Oc<0*j O0 0>2aUc<*. ts*; ru *mC4Ja{f: >f* aJi S r> t> faji OWa* c --<, tS<9 OOd oa -Sidr *W'09 o 1a3 Ui iSjf) 3 K.faw0MdB.* La* <oifroJ2*i wa o 4r--t;l yg; >1S>&GS mCti 2VtVa1 j 4S! g * C0m V0 o? (tuC<33 A9l fi -jtw0v*: octwcwC.JJj. <UC0-J Sa <c r*f> 0* IO>r3n>% cW? S <0v- 0 <ScQ..J5 Aec4 wB 2KUUa* O0rt K& O ffM4cfi W. V0I K>lOC m4mm> ^3 AJ *5 *5 TuTJ r3 oc 'O!Cg(QSEa4Jci. --<yJ! O C3J 4* I*4ZJ} N .--z*ai 9 GCa .4GuyJ MgCn3 C c CiOH.*T' A51 *& a (5ba. sa<3 *J 1tmi oi "fUi <un\ mi -e-* 2iGoEc>. <w MCM y <O*4 &S? JoJ /$2 13 jt .-J-*.i UO x4c-3y5 S V, >id. ! *d4l U 0*C Mta-l Oi t Tr fi 1.iJ3t sC?. *cao tO 1C%3 c CM tSsfe*t vg.M*n. 66* 5 x5i-, 4.Vw2a14> K <GJ U <Cd >1 /vjj5i 4C4; MC< --V25 cU lC2ia#1l > !nm .oC C& wa ff<i*-" 0 KOleaF. 5k 'S *OJT e aaJ ha C M*C533K*i Gi N>S?Ti 34(54Il & C i! ?3 Ufi 0fi <v r1emm V*!: C * Vt Si T3S O gB. >0 1*Ca3 <V1uc1,f 5 en -3S0atJK a i i fSi / *4 J,, a e Uc1i iU6 12 W ffl ? r*V> c> >5 <wwdaUM MM*GF*Ct, *4 3S 0cJ tt2c V2* ? bc Al Ctf*Gf?il; 1501&J8 M<(VfJ*l ntbuf)l m01<&2sa &0bt A<Jdl1 a >:~ O Im S93 c 73 cf9Ai; jJ au w09 <fu1i aOd we V3H cX a J4U(s?id>j, aRJ kV}o CVSdA,. A <9 fKi fi v'ea-r?5i Al ICS 0Ccif ec* Vjj 1c3M3 <tfl fsi t<&r3t Cffv* uOC?i. .e CVf* iC-Vn* iCf*i 1 cGT*t g l?i GQ S J S 2 G'<Ui C6l C&*3 O S 4-M C1 c # <1 o o fu il tio n of ( , ' e r n o n i r t d o f CLIo U n t * : ' l a i n s . U s t s r m fn a tic .T a i th s . U C a "G a WCD 001086 WCD 001087 8SJO r * u - M i r Oliar r At th e nd c i th stsiiV p e rio d , 2V`l o f the 3V2 saie workers E7oKt In th 3625 stu d y ore ss iw# '-*5 23X3 had r ile d , and che v i t a ! s ta tu s o i on : y 4 (USI was 1022 not tm isn 52J., Basse! or. U n ite d S la t e s ra te s , th e n .n ia r o f deaths from e l l 1623 eausos Srv'V s r m t t a i l workers was le v e le d (VO obsorvad, 71.22 s p e c U d l, 5625 .I.thourh I t hiss n o t s t a t i s t i c a l l y s l r n l i l c a n t . N oeriy e l l the aucess was 5626 accounted fo r b y an increoso In deaths fr o o th e r n o rirB lIp n a n t r e s p ir a to r y 8627 ctUiMSos lo iK IB ) , ex l i t siI no pnenaorde and I n f S u w t * . 630 Per th e !3 Saie workers who d ie d o f iJWSlir), the avara d u ra tio n o f S63s exposure to te j.c feas !B years I S0=l l ! w ith none exposed ias<j than 5 y e a rs , th s 5632 cvarano S nisrvaj; between f i r s t amploycant end death was 3! years {SO12)0 end 5633 the avara o* ej-a a t tasth was 60.5 ysers ! SO*'11 1521. At le a s t B o f the ES 5635 iMofced, S r ijd n o t smote, and in fc rro itS o n wos o n a v c f!s b te fo r 2 w orkers. Only 3636 j o f those who d ie d o f U H M had worked Sn a ta lc tain* b u t n o t in e m i l l . Ilo 5637 had worked in th e a in a f o r 16 months, had bean exposed to asbastos fo r 16 S63B Months, socked, and had d ie d a t fciia a a o f 43, second worker had been E6i0 exposed to dust Sn a fe ld s p a r tji;-srrye nut th e o th e r a i i l i t tied n o t bean 6645 previo tisS y exposed to dost 5n t!io w orkplace. 5644 O S iforancss in deaths from o th e r causes era n o t s ta i 1st I ce I'.y 1643 s ! m i f 1c a n t, a lth o u g h cteaths from r e s p ir a to r y ecncsr ere s l l t h t l y eievatecr (6 I6C? cbse~vd,, 3.fi7 e xpected). Hosed on U n it e d S le ts s u a r U l l t y r e in s , the o/E 64K i- c tl o : o f davths front (lilt!HU were 4.5*5 In baie m ille r s ( / observed, 1.72 5640 e x p e c te d , F s il.O IJ , 8 ,,6 l in t a lc m in e rs ( 2 o b s e rve d , 1.31 e x p e c te d !, and 6 . ! 5 ioSO Sn f t i i t e l e w orkers (SI observed- I . / 9 expected, l'< 0 .0 !) . A lth o c c h IMMUS 4652 w i r t e i i t y r a t e s ware < ;ra a le r f o r V e rm o n t men th a n f o r men Sn l i t a U n it e d & TAI.C H U S T DIIAKT S ta iis s s o - t e 5 lt y f m u r;HBU a s s t i l l s ig n ! f l c a n tt y g re a t e r I n Verarant t a l c ' Eo3`: ! l l e r s th a n in V a r s o n i nwn. tie s a il on s t a t m o r t a l i t y r a t a s , th e ( l / t r a t i o s 5355 o f d e a th s fro m (iftKilC K a ra 5 . 5 " ! Sn wen e m p lo y e d as t e . c m i l l e r s f o r a t 2-sast 1 3657 y e a r <7 o b s e rv e d , ! . 32 e ;p ct < 3 , p i f ) . 0 # l 3 a n d 6 . 7 M Sn th o s a simpJ o y e d ms 1053 S !e rs f o r a t le a s t 5 y e a rs ( / o b s e rv e d , 9 .0 4 e x p e c te d , P4Coi ) | ) 0 3661 e d ib le c h e s t K -re y fSItus re a v a ila b le f o r B o f th a t l who d ie d c f 1662 HHHfSi 1 5 3 ) . F in d in g s S n d ic a t lv s o f p n e uiaoconiosS s weirs c l a s s i f i e d as .2 /3 f o r S60<3 2 w o rk e rs ,! 2 / 2 f o r 3 a o rite rs ,, 2 / t f o r i w o rk e r,. a n ti n e g a t iv e f o r 2 w o r k e r s . (565 31 c h e s t K - r * y f l l i c s c l a s s i f i e d o s .2/1 o r p r a a t e r h a d s m a ll r o u n d o p a c it ie s 667 ?n8y d is t r ib u t e d trs ro u d io iit th e tu n e s , w h ic h , a c c o rd ! n o to th e o u th c r3 s **era ` tide o t th e ty p e u s u a lly o>s e rv e d I n w o r k e r s h a v ln q pneum oconl os 1s ,, i n c i u d l n r I67G t j u s l S t a i l * r o s n tg e n o g ra p h l c r e a d in g s b y th e V e rm o n t H e a lth D e p a rtm e n t, 1* o f 1671 th e I I who d ie d o f (1HKH1) (425> h a d S -ra y f i l l * f i n d l n t s I n d i c a t i v e o f 3672 p n e u m o c o n io s is u h lia th e y were- a c t i v e l y e m p lo ye d . E675 By ravSln<8 w ork h is t o r ie s , b e le v s n o t a t I 5 2 i re p o rte d th a t f iv e o f th a C676 s i x d e a th s fre m r e s p i r a t o r y c a n c e r o c c u r r e d I n men who had ork-ud I n th e m ines 167# !ih Q w o rk l o c a t io n c f t h s s - a t h man a s n o t k n o w n !. I n th e 163 rest e m p lo y e d 067? es t a lc m ln s rs f o r a t le .s s t I y e a r, 5 d e a th s from r e s p ir a t o r y ca n ce r wer 36(10 o E s e rw s d j com pared w it h 1 .2 2 p s c te - l, (vise d on V e rm o n t r a t e s I P t O . G i! and 1601 I oOV < {tsctc'd b a s e d on U n it e d S t a t e s r a t e s f p l . l ) t ) ,, lh * V r , In th e 82 3662 em p lo ye d es t a l c E lm e rs f o r 5 n r more y e a rs ,. 3 d e a th s irm r e s p ir a t o r y cen ce r 683 wore o b s flrv m i, compared a lt h O .d! p a rte d liased on Verm ont ra te s and 0.73 168-i a k p e c te d b a s e d on U n it e d S ta t e s r a t e s . f l i i i s , d if f e r e n c e s b e tw e en n u m b e rs o f I6bb o b s e rv e d and e itp s.clsri d e a th s from r e s p ir a to r y ca n ce r were S t a t i s t i c a l l y WCD 001088 51 s o i n w i 3 | e 3 t i p v s o d a n t M i K m ; l i o n ^ g r i d o d i j i o s s ^ s s B j s s f 3 * i < l g, j g pue 's A n & jits } |mi! ; i (au; i u <m fi>i au.tn nSAj^ep S / ( llli'I J o s {>o-j:><Sa; >0 SB'jawju.s 1411. <iJa(,K3 i'joiif uopl; ei jigs sjrr%jo>. .io,?, a -ja j uo p i sei; 3 ; 5 S) I** U6.#.|is Sbiwrt; fiai;5u,n m)\ jo ' uow^i/i OJ u> 0M a) * vJ *! c OO P J P & <* * ' Z Pa K * NJ 0 P S QiJ P (y* C*J I' W U 9 5^ c Ni O P &U a a Q*vt 2 Z y -.3 r* r-' t* c> in Cftoi ft S & "6i * ft- 0T ru 5 e> Cf r O ft* Z v> r> S r ,T> fe y9 1 ft r S tre. r* r* j 0y Kl O CJ < c c* 3 y 3rv *s ut ft ft r 0 *0*, y. . K: *> S 4> '3 *1 fis 9 03 r*" O e* O S i* & n ft ft fi-0* tye ft ft ft% a te teft 3 ft C: 0 S 3 fii ft r O*; ft Sf r ft r? y?# a w 3 2) ft P* QD ft <w Q 3 yb* fl 18 1 5 ft fit *X be <V9. MK ft B O a--1 ft te M Sr ft 9 D"* #* 0te <3 S te 'i n ft a , *5U X r* r/ ft 0 r** y 3 ft 5 *? i" y te -< < te M r ft 3a w 01 tti ft 3 0 -Q St ft " T rr 3 rfcr ft y us Oft rv s 0 0 33 ft fCfttr V fii J 0ft f i 5" n 00 "1 y w> f? f<it n f* 0 . tfet fJ G '0t Oft pi' sr* ft R ma 03 y i. P* 3 te o $ f 19 *s 0 VI -, (\ F Ut P ft te te ft 0 5k fy>t f*?t Ul 0 3 *n f 3 ft. ft C-JP ft <X a w K&M r Cf f0t ai ft 9i ' S i* <9 ft S ft S P 3 f` ft 0 **0 (fi ft yft C-* ft te -f a u f1 y. 9 ft fT m~ ft ' fl y n & 3 ft te r, Si & ft A f"oft a % & ft -i Cf fi*t f* $ *jt; w ft 3 3 IuNj P te n r. 3 m> 39 W3 O j Afftti O-kJ c ta* ft aft *c ft y 3 c *f vS ? o* % te 3 Si 3 3ID a 0 ri' S' R \3 f y g E O Ste fl b0 3 Ow SM |V y d te te te sr S MM w0 te a yCf te <* 2 s* y5 2 ft S3 * f* f# y 3 te 1 a ar* rtej 1 < a fra y "* P a S3DO; yR C. *0*5 ft 9 Oid 2 *i* Q 3 $ ? Si T5 * a <* a y r fs 79 te g1 Ul y Cf mm ft> 0 .i*r 3 Cf rte1 V ma n pi f1*? ft R te 3 te fnf C* Ci n rv c * Ifl C' N O - te y yB tel. te 3w a ftet twe 5CJ'* y rr & y ft r* wS7 0 Oft; fwt 9 ft C<i. Mi fCfit O y 0 19?1 s 2 aO a* yO S1; SyJ y *3 P te f -J fWtl y* y Kc y fnt cft 3 3 13 <y? mm <3 C ft ry? "il O 0W; ft ft u<1 *3* t; G4 ff> < c "J N >' G (O ft Cl *- f9t. S3 0 y a "O j d C.! <*> 0 c f0t $a " Lf-* Sb ry* il -TS3 wrft < & fft fi *.' K9 3. ft a? 2 fi 3rr 0 y sy a y te ** 2 0. (KS*. ft ft 1*1 A r* S' y .T SC ; s 0 N KD pte C* ft S r*. 9 * 0 ft te ?fii K* a < te Oyi s 0 fil ft p. n 0w yc- 2 LT C & * 0 0.' 0 X ft fw X i7* 0 l*M a y Q te ny CL 8w c%: y 6- % a t a. 3 yr? T) Hy c trff*ti* f6t fis 0;* r0 &n y ft ft sX fi) fts t *Oy, t0e S a \rJ; 9 5|. fri* 2 r* Ul *4 0 !:> r- trt y *a Or O u* Cm n m"r a* u te 3 3te "ft v*T5i r y SJ ft C te FS* -% Tl 3 f0t H VS ft v) fi* ft tr 9 mm Arr te a> ft 3 L*J e tPe w" fm ftr * 3 > y. a *ax *W1 V aa> ** S' 0 3 a j z r e* y u- te 0s* 3*. f rr ya y .c 3< tx a v sv iji u i 4 ' {3a?,Jou> psftjesqo WCD 001089 A9 A U eu V fc ua M Wo C x ? * Q fe> VI 0 o &* Si ili E V u A1 ft V C b S M5 s c Ui V) u JZ Ul Vf il u fjd u C 2* ti* e <0 cy c cS t 0 Cc % -> JO 4^ rr as sT W VI S` PO 1 f i Vft tii <-- H 0 c 0 u 0 & -, C 7 c A4 J,' fi Ci V) X Ml w! '* OA te X ft w P A4 le u o i r; E Ai n V V an c sw Xi 0 fi 4 T Gg O CI CA P * Ai WAJ P c VI w Ci X *3 4*1 *-1 C >* VI -* 0 f i 0-. U b W & u * *3 a fe, iA fcj e O w <3 -*J Vf C 3 m* !SS _i U T 6 C 1 W (3 ft 1* VI fi ft ( *> 3 --4 X Id ft --a C t: s !>> a u J C o C B f i C 0 X C ` <x! w c <v> t ' ** u Ai M V 04 fl Q ec T ) <v V M V. O n a W 3 tff X fi I M fl tfi W AJ E ' ! o l Ai y VI VI I 0 S C. O --- 'J V, - c C c C m VI cO C VI c <3 <> s c u fi - 4 f l aa] SG c X) a] G a v: u u ft f! Va ft Vi U a u > C 0 4 V W X- e S M s 34 y Cl g 1.1 S 6 > u n i C w e 5 w a VI c fO f i V) %- <v* * !> t6al X w s i an Ai s u c> c a tt S 3 X ; ?i u c 04 aC Ai a: <0 Af C i"4 f i e <* c 04 ii 0 Ai X wo Va U /j w ** . -- r - e T n <y X fe t V > 0 w fi X > . o aai c eu C 2? e fea 4 i C C > ? X fi 4 i `J cP *- ft X 7 Al AM i MA 2 VT y ! .M c mw 0 C U Su X A A4 X --5 rf* feu Ci f i *3 B C A4 r Sa Ut M y, In E * 0 5 A C? S t i .c v. C a - 0:i c> s0 4- a vfl 'C & X fi t> 2 fe a V o X <i? -'A4 t4 sa* c T ! O o> aH JM 31 *bR 0 G RI mi J (M e U I OtJ G 01 It! U VI 3 a> U TJ e; X C V 0 Q S e Oc c fSi 0 e c Ai e <3 C U y* <s I, < ifl w tt* 3 h Ul Cw C fi 0 Ai e * Sa V- ft /a <*44 U C tri 2 C m (It in Zj C W C c P*a u "1 5 0 O > a . XX C ya _! C < W cJ e c u c u <?1 o c p >4 . C w lo S. at* p Q v. 0 w ij f-, c mm --Na TJ i M *> w tfi T? --1 i > 1 0 O r 2> d i ft O s O m l l/l 5* w g al u C ryQ f i 6i CJ 9 CJ * Hit W 4 w 0 E ft ac ce *> <l f i a e <2 Ck- S 0 il V O y* e <4 ac CL g V m M V X ft b c .V* c3 V4 mm af il & C l C o al w e Ai Ai C e b c, 0 R L VS m m 1 Xa n W C c Ta' *.: m ] S VI o cbc 0 C A VI V C i in fc V. ? VI G Sai 0` a <fl K i j f W v3 aal W Ta C C 9 C cc 4i :4 V ft *4 * m ft BU U fi S 0 u lo fi (r <1 M 2 V la C C' fi fSi t wt i? ri Tf i- <fei C OJ Wc O ta IT M eu 3 u i* *3 =3 b cca (fl fi * > V 4*5 fi * 0 ft 9 fi * & S WS ft. ill s og *- r - Ci :nl ai a* fi-* ai.' &> Q * U w u s a S?* *0 C *r*', t*l m 0 M ml w ft u i C0 fi U m w} Vf f i 3 s o n o Cri u la 4 Cv u & Jal t j o f i <9 -.a fe# SS? * fi t oi 4:3 * V. W ft Ta /fi V) tvj C a W Jt e 'OS tfl $ fi -l <*> a4 it ov w 'io fi u cw s <S) "o 8 . o e 2G til 8 jg- In 5 c b u CJ ;> Vf O yS Cc e1 c a y>. <r 0 i-j a 0 ?,, 'C 5 f i *aC 2 ' 1* 5 In & ' Si a td > Al g X AJ ia m 3 AO u . f i n VI O e 0 J ln 2* fl J. f ? * f i t3 ft Ai 4-1 <3 fi VJ *J s* t <> r SI 2 <j -? c* S m c fZ ffa c g 3 fi 1 b VC l i X Ci Ss c f i U *oi JQ w e 't O c a or* jnC V* <9 CV s O C C 0 tra w* tXC a ; SI t t Xb ! 1 VI f i a? c q*q 'S ta} > <2 5S s. O*) *3 CI O <*1 %: Q *80 g r fi * R m S 0 &j C3 ut eX V g 0*1 lo V f .c; c . f>! 0 u no fi O c-l i.J k. c >a 31 (9 > T b n u 5 S tCal fi C 4s* f i 5 i fi o fl Ta 0 2 ta ej a* C cw; fe. CA 0 tl V ?> (W o r * fmt tro ' OS fN 9kV i* F-* t cas e V i 'i t 5'# O F- <1J> r* in *> f> e m i F 9 i30 <i n <mt faQ "'i r * * =a 4* Ml *3* (AI '/I 'A A fiS (* T f\j V * SI *1* l 'i f a a (A AJ WCD 001090 WCD 001091 m . C FJI1ST D I ? T th a t th e se d c a th s were 64r i bsited to e xp o sure to th e a ir b o r n e fr e e s i l i c a 3756 p r * S n t Jn a S. lin a s r a t h e r th a n t o t a l c a lo n e ,, U n t i l I WOO, hoWG" a r s I5 c o n s is n lrs tio n s o l r e s p ir a b le eist were /E a te r in th e m inas th a n !n thw m i l l s . 1738 ith o s its ta s6 sre ib a a n a s c o n t a in e d l- I B S f r it e s i l i c e , s j n e r s I n t h i s s tu d y 275 w a r s tiS S s ip o s a d t c isora r e s p ir e b ls t a l c ciisst th a n ior$ l i t e r s . T hu s, 6 0 a n o th e r s x p lftn a tto n o tb s c c th o rs ' fin d in g is th a t cu m u la tive osposura to S7! m c in h a r u n e s t c w h ic h m i l l e r s w are e s p o s a d s i m l f Sr a n t l y in c r e a s e d th e S72 r ir , * : o f t e v a o p jn g a o n m e ilijr a in t r s s p l r i t o r y d is e a s e . i n s97V. P i n a t cS 5 5 1 r e p o r t a d a s t u d y o f r e s p i r a t o r y s n r h l c i j t y ! n 91 1765 r u lib e r w o rk e rs a xp o se d to a n o n a s b a s tifn r a t a l c e t c o n c e n tr t io n s below th e S7A7 c u r r a n t TLV o f 0 sippci1 1 3 .3 m i / c v oe d u r in g th e n c n u f e c t : ir a o f u n c u re d T tib b r 1766 p ro d u c ts . The a i /h o rn s t a lc d u st y ie ld e d kss th a n 2 fS b e rs /c c *5 !u)m In 1769 I c n c i h 4 i n 3 s a m p le s ! n n d C5 f r e e s i l i c a ( i n IB o f 2 i s a m p ie s ) . fc ic h ty !7 7 b w o rk e rs ( El sers a b s e n t) wssre e x p o s e d t o r e s p i r a b l e t a l c a t le s s th a n i m c /c it 1771 is 5 re n -je 0 .5 S - 3 .5 5 m g/cis m> o r a n a v e ra g e o? 8 . 9 y e a rs i: D * 6 .5 > . U n e e t a t ST2 a s tir,ic te d t h s i e v e r c w io iia tlv * life tim e esp o sura s to n o n a s b e s tlfo rm t a lc S77<3 mmta ebou>a 2 0 it p p s f 0 e n d nrex $raun, e x p o s u re s w are a b o u t 00 rnppcf ! - 0 m r/c n ml In 1775 th e S3 r u b b e r p l a n t s . 1777 The BO w o r k e r s e x p o s e d t o t a l c w ere m a tc h e d b y age a n d le n g t h o f i 7 :ti e m p lo ym e n t w i t h 9 n>n fro c : o t h e r a re a s o f th e p la n t s who were n o t e x p o s e d t o 7 0 0 t a l c , c u r i n g u s e s , o r c a rb o n b la c k (5 5 1. T w a n t y - f iv a o f th is HO w o rk e rs )7 3 3 erteat in a p la n t w here th e y w ore exposed onL y t o t a l c , and 55 w orked In i?R 3 a n o th a r p la n t b a re th e y were exposer) to te te end cu r in o fum es. In fo rm a tio n on 1185 p re v io u s e c tip s tlo a s g m e d ic a l h is t o r y , sm o S iitr h a h its , id r e s p ir a to r y 5 !> i.C H ilS T QH.iFT :5>spf.ssi w e i cSsieSned ( S w r liij tv o r fe s h lfts i>y t r a i n e d I n t e r v ie w e r s u s in g a U S B d0ffe<S r s r s ia n o f a q iC T S tio rvslre da s lo p e d b y th e S rS tS sh K a d i c o l R esearch l i n t C e in c it {& R C I. !n d S c s os' p u S a a ry f u n c t i o n c in c ic t d ln i KEY s a n il f lo w r a t w s 670 a t 3 8 .5 25 a n d 5 0 * o f 3-WCo w are e n s u r e d d s r l n n w critshS i t s u s in o a 1701 a p S ro o s te r F6V I e n d l*VC wire e l s e m ea su ra d f o r 23 n o r t * r j a s p o ra d t o t a l e 17 0 a b e f o r e e n d - a f t e r th e f i r s t w o rk s h lifS f o l l o w i n g a 2-aiay s e te n d . 1704 P c s te r o a a te r io r and le t e re I ro a n tre n n grass e ra tefcon fa r l i t b u t fo u r 1795 w o rk e rs . These e re re v ie w e d and c la s s if ie d b y th e U io c -C ln s ln n a tl 0707 e la s a lfle e tS o n syste m f o r pneum oconiosl s b y a p h y s ic ia n c e r t i f i e d es V re a d e r Sioa by |i>SH, 9880 F a c t o r s t h a t c o u ld h a I n f lu e n c e d r e s p i r a t o r y syiB jitora s, su ch as * to o l insights ie n e th o f p le yse n t and o l l n ; h a b t t s e were fo s tid to he been *8 0 ? s i. a lla r :!n th e w o rk e rs e xp o sed to t a l c e n d c o n t r o lg ro u p s I 5 5 h Tbs 3804 p e r c e n t sw o f w o r k e r s who r e fo rm s r o r c u r r e n t c l r e U t o r e r s s o k e rs i K S r e s i s t i i i s r Jn tb s tw o g r o u p s . The e x p o s e d g r o t ip b e d s o o te d * n a v e ra g e o f 96C en<5 th c o n t r o l g ro u p asi a w s ra g * o f S 2 .f y a a rs 5SIJ=M 2 ,,3 > . I8 C 0 P e r c e n ta c * os' r e s p i r a t o r y sym ptom s i n sm oke rs a n d nnnsm olcars i n th e f f e i p 3810 aspos! t o t e l e a n d i n th e c o n t r o l c ro u p a re swiari ze d i n T c-hla 1 1 1 -3 1 5 5 5 . 55 WCD 001093 IT i lo p u t i r dhft If-BLS H - 3 filO 1820 reecsW U Es h f h e sp b a tu r y syhptoms im KosKens EKPCSEG Tn MllWSBESTWitiK TALC Nft IH c o n i lin i.:* E 2 ; 32 183? 5223 83C E82? Sy spioni 3 MonsmoSars n tu S itr o f its n i 1e t c 3 221 C e n tra } ?'. ff-XTAfcC-iS 51 Snsokarsae (n tio h c r o f ment T e le C e n tro 3 li fa r c is c e 50 i l . 18/ EE3-* C h rc n s c b r o n c h i i s s y n p to s s 5S35 s s u h s h y p a r s a e r a t to n J 53 C oirjh fe r 3 0 m n Ph 1a es f o r >3 t ic 4se,, 5.*2 b,, *I2 .T S 25,,9K 3 0 .2 0 .IX 55.2 M 5.S S * 2 1 . OS sas* M n i c t i r s ro s p ira ts ry se<sfj S843 H se e s s y c p o s s H h ssz n c mosK tays 2G ~ 2 o0 22,,4 5 .3 *>3,9 GS-Q mJ n l h ts 83 Cl>L0*5,; 5 9 - 5 . 9 2 *.8 11.6 >i 2 .5 18*84 1845 * 'f * . a rS w *.?. c ^ i f a it p H y s d n s"ibtoar ssla>t,.. *ter^ses-r So B 4 5 ft S-'. * ' .' 3 4 6 (jo-ad n o h c s h s s S S fo r c s n M l f t in q i r a s s iJ c a t o r v t . t ' y r . >iost MorStisrs 184/ xpos;t t o r e s p lr s b ioe t a i s a t * n t.'c ii m a t asmi o s tu rt/o I B M M F o r w r r c u r r a n t smo'sers o f c ille r * U . s , et tars o r p ip a s 50.(9 ***C h ro n S e o b s t r u c t s * lurvs d js s e s a t w h a s tin tii m ost days a n d n i c h t s , (ja-ad "1*50 Si:i>Oi' r t t b r . f l t h i n r - o r FEV ! MC COil 6 il5 1852 A d e p t .Kl fsrors F Sita s t a l 1551 b tfi St 1 4i a > f/> 'S fi 4M H *1 0 * TT tt 0 a ia L O Ai U . W. 2P o e S* u. a 3G n> XS Ml U V .J HI > V Hg 5 A C 0 c e *> &<K .-1 9 J W A X fe o X * w c b. 44 c c w *0 *J c fi* iJ c c <1 * w. w g? V i. fi > a IT e Km O i 5* *> f ii W -- 'S c mO 55 cr? *4 3 fZ u e 0 fc* u 4* w o w *J o. _ . Id <o S' f i 'S c r IA 3s C m 0 a ,, 'j f : *- c V 2 G lu C * b. -vs t : & u t c U Oc t . J s o 5 H' X* fi a G g o 5 i 3 v> 6 a L * M c C: iSSr 0 .c <j 0 t- A4 t* 44 -- 4 V* f i r . '*< Vr C o w* oo UU C C s V & 2 ou V o & W ft- ft. J* mm IA O N G e X w T k. u Jm w Q <A S J 1 c .'4 IS ft. .. U fi C 4! .V s> V V js M U i jC P a C : o F>| U 8 *- 1 J', L fi c mm c <3 V j e a U J r t a \3 2 R ILI S <5 0 f i *So w A* A t c Z 0 k fl e O V <J * 5 o g (3 a ' tfi -- Sr b. T V uV c e <4 AJ c CM u t W1 3 * 4i w ft. U f i AS c U J 1 c li *c f . 4.' <J C a .* a s* 3S w * 4- 4 *> G U W c- O C K G 4 S 4 3 -- 1 l* t w li O c C i Sr e . a S fi 6* O V) o <4 M c >* O U a c : c c C * fi u a "' m < tj ?: V u c * (*> f i w, t L- f t V . K.a 0 u e V --. c i oo C W c *> 9 O <=J rr* o c 9D U Z 30 w b? < / : Q / : ' fi 0 `fm *** *8 cl a O *n V w if* ,Y iJ 'J C 0) M fi I lJ 4|t O T f <r *9 c AS Gf^t4 O s 2S 0>9 C i B O o c tl 0 as C M o *0 5 c & ty P* r#> a? MO fi cr 3 3 a < rj Cu tti o fi G C M S 'P .0 4 s 'S C4 M T4 , V- V \fi e i 44 u w3 U C f i c fl 0 WC i P V * u G ** 44 6 '3 mm W j s <r4 fi J '3 fc-i 3 n O ft a: fi 9 >s S 1-4 C > fi fi k> 4J a <4 J"' t - G C f i $ f i mm A i C s .<3 t - C t_ a 0 V ) <4 mt C. a L. 0 3 o 3C a 'T <J T 3 <4. --4 ? 0 M fi 13- fi . c *j tw t a . t V* fi > C e* so lCu - G & a w 9 *s W : U tt c 3t c c fl UM 15 fi- f i W "P i f U ta c C 3 e f i sb &c L` <A T5 f C f* U s * ca * a 20 Z TJ O m-3 'f i 4 mm * C 2 Pi <1 --s U y 5 i t/1 H. C s i C - 4 ? a- S) au kl o 2C M M 0 j: V C b 1 fta o -3 44 y tr A i ) t . AT 0 ft. 0 6 gB9 0 A w V f t 04 3 C. fi f l 4.0 cJ * "in it* wCC 0 C o a o t<Kft s oJ ft. X ? fi y c*L* a 0 f l} X l#X <4 W C y l G fel V 04 ?u ! 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K G C fi A 3 y y j* j* MJ i 44 <y SW i C* u l 4 %4 E JP IW o# -s y c* *} 44 cJ a p a f t C* f t 3 IC m j. WCD 001094 AI.C f h s o r a f i. exposure t t a e * e * u t i t t l a l l y s ig n if ic a n t sP' Ccg! 5S f o r w orkers * | M d f* t te le bist n e t fo r dureii0 ,1 o f ecpgoyaant 'for c w t n i s . five r * q r i u l m 8 an eiy *I.a for 55 asen exposed te e ' e sin n In-riicated th a t* fo r each year os' t * * * * p o n r * to r * * i i i r b l t a l c ctsis ttv w o rk e rs ' HE* i decrees n a v e ra ra of I f M 33 cc users then decreases r e e ts d o age ami smoking h a b its , in ft workers t W exposed to s a l end w i n ? uaies, ra im a s too e n h ly a t* Ind icatasi th a t F* t l * W k ffS M M t i * m a v e ra o f % cc f o r each y e a r o s p o M rts Fcr ?7 workers H>05 exposed fop -10 or more years to t e l s e dt ln sene instances to u r ls c f i a t s , 1*31 e i s t t n M f l U e f KS* 5 rare an average o f 331 ce low er then .orsdl c te d values I W d e riv e d fr o Ute c o n tro l *rat;p a f t e r adjustm ent for d iffe re n c e s in -sge* Ito ? hai ht am f w i l e t h a b its . t * l 2 These fin d in g s in d i atad th a t F* 8 decraased ) r w # l * l y as year o f W 3 w orkplace exposure .to t a lc In creased <551. ssr.ca aeasureaeats o f f-'VC wer n o t 1*18 e ffe c te d fey d u r t ten o f exposure th e e ff e c ts o f t e le on th e l i m i t appeared to H*5S> fe p r im a r ily a b s tr a c tiv e . Sona o f the w orkers exposed to t a l c had d w i JHray l* I T f i t * fin d in g s in d ic a t i* a# c la s s i c o l p i M u w c m la i li i but w erkers In t h is 1*1* S tn s|r were 'p ro b a b ly p o i w l to t a lc a t much Sowar c o n c e n tra tio n s than re 1*30 w orkers exposed t t a lc in o th e r s tu d ie s who dsvlesirt la b o re d b re ethS nci 1*31 pneum oconiosis, o r fib r e e t s a f t e r any years o f workplace expos re to t e le , l*?S S ince w o rk p la c e exposure i o r e s p ira b le fcaSs d u st e t c o n c e n tra tio n s in the W f e n o f 0,5 ~ 1 .0 /re c o u ld have Bed to p ro g re s s iv e teereases .(a l a r 1*26 fun et Sen awaaureaents, Fi n i s). S55D suata atasi th a t s tiv e exposure in 1*3* ra sp Ira b S * n o n e s b e s tifo r ta le duet should be ree trle fe a d to to > 2 * 5 d u rin g 1*3* w o rk !n r i l f e t t n e o f 40 y e a rs . 3hey sicotes te d U w t a TL* o f >1.25 a.iVcu is 5a WCD 001095 T M X - i HST UffAFT s h o u ld JjsBlfc j *S rw t o f iis n tj h n c t i m e n d s h o u ld d e c re a s e ih e x c e s s iv e 3901 V 5 M l !W 4 s u rv e y s w ere com pered i n Us* o m t i t a t t f ! a n a ty s ls d e s ig n e d io X U r- M c r) t i * o d U w > 0 ` -*> jg f ra 's^ 0u *Im Q 0e A s? ** ? **} K S3 'J *t <? 0*5o jjt e *> S Ha *Vi 5 <9 -J 0 5 * if 1'--3 r 0 ntt >11 V 1 * m *3 K * Si: V# i <?.! s % fil r c 4w> e at M !*o 'C o * * t r,C 01fri -C 0fWif Sa > <a r 0f\J se S <:> <-l C t- M A? e s aC m fv e c *r 15 i S3 Ui? j V S B T3 p; H* 3* ^ qe Sx ;; 5A 3 O? AS" iW A4 fl as VE ' 5 f l t-> m u *--3 Vi r~ c U *3 tfi s CT O V, X r ' 13 g Xt * s M ci c* *. > oj u> n t crf c r-3 M e m ,:j ! G M *Aa W M , 1e C ta C 5 / , et . X t *> UJ C. fl a > o i> t f ' t 9 03 tt f- x i 3 0Ci* A} X! L J C c P* Vto & :; o oJ 1Xif 1 <5 e *3 t? n Cr j !v, <U5 \> vl Vf in *e j r w : riti c <> c c?: i>i c d 'J 01 0 0 -? T<3 t/i O o cJ . ) w ' O & V. V. C A' V \ w <8w G G 5 t % c a t ? (N S 8WJ Vf r: r* AA o ? ti Ai j V in fri 6G rt & sce * XA CM . C G o* o 01-VI i a Jst S V 04c* V ; V m 3P v> Si -c 0f a fl 8tfl i 5 c3 w g o e (J ai a 1t c an* e . <53 IV 5. ! C <r GO U w t. c *i et ei C' W J 9 o 'J J a G > t 3 * f3 : U c <NJ C b (A S M V C V. e ac - > r. s* t e es - fc. 01J ? t3 If o# > S 1c * \5 o r 5 1t/> !:. ?; w 6lo O <P3 G a Hi k Cm a O 0o5? O w t *j .5 cW3 r. <u4 c tr 2 fr* * i J*. r t ? > k oJ M cV ito C et ty e e t Ui iti -j y . e c ito I* to. > 9j *e.* G X) Ut *r t V. Q et s d c U et ft e . JJ > X Ui 5 30 3 *>> g Vf u ; p et a. t U. U! s fL-, *w e . BG J<C--J t tJ P 'i e 9 * X-/ > eo V IW <5 > f8e 2 ^2O. < * m G f; 3* s W) J r* U u4 a fri O O* &* <39 i C Cri S io mC t <. fl O i ci ifl et 0 Cr 04 tf> t Vi 0 .5 V~ :*! 0* ) c S w M CS Sii O Sr M * V . Co g < - * 3 1 * . 0U <8C i U o, s i 5 .i * c c 0 1*3 ) 1t <3 XI * . fi 5 X h ;- & ?i ' j M , '. ijrf Pc V* 5* G KMr <c a c c 5 %* S '-Si < il 'B O 'S e % %1 G o-l r*. 0a m 0 -1a J UO O Vl a , ` JJ > fl M 3 ?g M C*> C-J U r; G J S e t Ur. 14 Vf V G* * <= il >t 3 et o M *"*. fi, V> cri e. **: e V- M *! w i fe'i C ex t HU 0i.* V t *10Va e 1 0 0 6 0M C X? V y * *?; ifl Ai liT g !.. (5* r <.* # g* *S s Ci . JS 3 e og tS Sw O S 4 t? Si 3 <K- e e *A S-, :: -, $ `.t CT --, m I t <: e *73 J G 5- g U i G? S y. et 9 V, G . "* ffr w c OJI 5> JJ ? -C.t -GS et * t >5 fi. 5U fri e cI 5 m ?& 11 0 5e.? Ci -i 33 U o 51 g i-n O e. &3 i c 4 * <* 3 <fc & c*> .V P-. t. y TS i * ci g CI V 9 r- : si Ss tl - a- J * 9 vt m<. SI ;* toi ft CJ I g f-=-3 V m 0 1 0Kv f 8a ifc V- tf t o 3; 5. fl . t V, *J t ai w G ** ?? a C? U tor? i exe tto 'i * " h** n & **T *0 0Cb Pi OM w- . c*> > w <? * r ai * Ci M Of*> * " ti S f* A' 5 ? ** o if M ft C* >* t? * 4 S mt a T (O 4) o &to fv r O u 3 C*-. * WCD 001096 ill JO- * J /I I U ln } * 3MBJtJSd*3 .M r a atd W J! iVMCI If.M -I .71VJ f J lS ii-V a f ' O % 6 * . O O S i'S 3 6 J3 S }> iO> I 4 5 a, a ,r. _ o y15 a s <n *3 <3 -a 3 O `9 t O a *e0s c> _ OO b '9 ft? ,, f9 '9 -J 05 O .. h'w0!( J t > u9 is KM* ***d J Irt rmt OU (V 4 CM <33 3 <aj 133-J s '3 Va* O eCrJ- <3 tfi -i. Ci 9 e> in S 6, vn SJ S) (5, *>* "0ft <fi6.sj r* zr a W V ij0*Vi i "Mj ffr 2*^ jj 5< ft 0 9 CW fc> 3 ur*: V, * Ci O srcr ia r* r <s n ft mm a- V, m C < rw^ a o a 3 r*- 6y S&n n p r3i* . V 1 U s?.X O ? <39 S f-lp *A 332, 3j ft P 1 f0i 3 ftr* ft ft< 3. 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( ; *> u r^ .G 2) A I S Cl 1 vu S f : ed h l fl C VJ UJ L_ o < to U IV V 0 ta Vi VJ u TXZ J W C >4 UJ 1 u Ci f VI c k. a v> V. V. <0 r V> 3% -; ci e V y C *c G 9 TS *e G . r. Vfit, f (> c & .0 in Ci 5 * (S <*-- a 6 Q ^3 T2 Cd .C 4 CM .>8 e i* 0 SI VI rr >* c s II G c /* 1 0 u o 1 VI *> G 'O *> <n S-7 M jC o O c; > K" c . w id " P u <V3 c V go I f IMI on ft; 5 (fl u -G > . >S) ? >. c r A * -*' UJ <* A i f li il c Vi * 3: f* " *3J S 2i c r. ' i c o0 X* cM 5> Ifl 4 (* tv Jj C-* 0 8 lv . V a V I . o j & c r i \ j ;j G eJ Cv, -G 5* o u i VI S C -- 5. t S VJ 2 5 A 3 <Cjrj fn 5*a i s. m C C o< -Y IC o u n 4J TJ .G a . (J 0 lit O O C 1* ** .c *3 ad AJ a S u u C M w IV w . K O C ' ; Lf 97 *i ; w ( A u Iti * 4> f! V e S ffi 1 / /; el il j- i V * " ** 3 w %3 M '15 <2 *8 - V. i a ti ej =3 U P V 0 *0 i i i >5 > I V> V J <fjC S *, 9 O r*> va s> vn tvtt I ; t * A f (fl '3 O V. B Xi i a y s U A . ** .3 e o * VI w -u - k . 8 U M n c - 0 fl5 0 O cz S >* t VI 0 tn 1 G i A > : -; * H `i* gO PV 1m V i d #i> e e 4 l (J c l 1 c0 0 f* Vi <y A l 'O S Z 5* Vn 3 & il s e A VI si1 0 ?> O c ! .G c ut 1 AJ Y C 3 4U K.J s* c MJ 3 t i ) c t) Si u <-a (& C * o J S K s> c *> < o q o n 9* <C * - v i. Cd 6 V J b . 1$ CT V <ii 0 K J U f*. *e ^3 Vr VJ tV. Va o <Si a . e 9/ w * r* s V bu 1 : <? tC V <9 tfl w S Si W V, 8m > tfft U CG rsO N Ig -4 0 3 <>) U P ts b i C! ' $ 4S Vf > u C oe T* if* hi U 5* <> U S SI * '-*5 <0 sft " * J d l 2 '0 5 * 'S! I 1 O il 31 0 A K | y* V* oc, v^ 3M K e %. . * * w ro 1 V4 o f7 5) a uC V b . < ) 55 VJ 0 JS ? K J % S <v* V C o Vi Al **3 <# G l Vu C5 C* g 1 a* of * c* so <> ri.; 2 C* fv r e5v -V Vf AJ H r e o r- NS ? (\ ?vf A1i A ; t3 9S0 VJ C O A i A l A? s4 2 A ; A j AJ AJ WCD 001098 WCD 001099 i Al e H K i f DltrT B,bSni(s o e l r * t s sm oking t lld n o i a f o c t lunci u n c t io r . , b u l t b a l t o le and 2032 eS c a r e t t a smnks rosy i n t a r a c t , c a u s in e F fV ! o lig e re a s atora th s n m ild he 5033 a is p s s is d rom x ^ a r e t i s e r o t in i a to n a . 203 So t i l e IC 3 e r& e rs s t u d i s i in b o t t i 1975 a nd 1976; i-'HV l cecreasaci b y en ,8037 r o e o t 0 .8 6 4 S i t a r iS 0 > 0 .2 ! 3 e n d r'VC e te ern a so d b y m ve ra a i o' 0.0*37 5333 l i t a r ! S l) 0 ,2 7 'r} e e ch yoes* 1 5 7 ! Ths cll ffo re ra c e s batrcaan ib a 1975 a n d I9?A 203 m n ; t * w r * r o j t e t s t e s i l y s ie p i! fs c e n t . 804i Stb'si 1975 ,id 1976, HjW l m eescir am anta te c ra a s s d by an a v e re o 15 2 042 / y e a r i n s c o r ta r * s p o s a ti i o t e i e u tio h a d n e v a r si*o `d, by 40 a t / y e a r In 2043 fo r m a r s a o s a rs a n d 5>y 6 0 8 / y a e r i n t ir r e n i s m k e n 1 5 7 1 . Khan s m o k in g 204*9 h is c o r i e os' scorie s r s e s p o sa d t o t a i : e re comperaci v i l i ) t h s i r c n r r e n t 2045 r e o ia s tr ic aiasr, t i s t a a p o s n ro s a th a d iff.a r a n c e s in e x p o s c re s :eers s m e li a nd in 2*547 ib a sDa d l f e c U s n s sssovilrtc hbt. I s J tio n s a o -te rs a e ra p o sa d a i an a v a re re o 20*98 1 *5 ? a j / s # a o r a s p i r a b e t a l e t in s i lo r m e r rm a iro rs a t 1 .7 5 i s i/ e : i m, e n d 2 0 *0 c n r r a n t sesocars s i I . 9 s o f a i m ). Iff v*re v e r ia t S o n s !>stsaen r e ir r e n t 205 sposta* e l w i s sanie I n e h i s t o r i e s , a n d d w m r a i In f K ! w sre e p p t r t n t l y q u i i 2052 s s i s e n t l s ; , so t ? , de c re e e s I n H ltf S c o iti d n o t b r s t e c d t o C J irro n t 2053 s tp o s c re ta r s ia * Us*nn s u p n is m u ltip le in g ra s s in o , n s ith e r sm oking 2054 h ia io rS a s nos' c u rra n t uposuras a ra . s i r i fic e n * p re d i c to rs o f chanrris RV I . 205c The u th o rs ssegrsstac ih e t t iiu p o p u lis tic o be fo lio s s a ri f o r a io n c v r s p ra a d o 2057 tia s o parh o p a 3 y s a rs , to d a ta rm i ne r e l s b l y tia a f f a c i o f c u rra n t asposur to 205 t a l e or, Io n e fis s ic i io n . 2CC5 O f ib a 70 w o r k e r s f r o a th 1975 s tu d y U h r-is ta b c h ie s i -r e y i l l a s , *12 2CA2 15`iT.J d i ci n o i hev s n y p o s i t i v e f n d in > s I m i! c s t l ve o i p ii timo con l os 1s 1571* 62 TLt: i ;r ihafi' Tbosa w t t h sral n tB d o r I r r e g u la r o p t e ! t a s p ra s e n t t a p r o fu s i n n f .1/1 n r 2065 sore r a n a r a ll y laacf lo w e r J u n e f u n c t ln n v a l e s shan < lld th o s n w3 t h r e a d ln r s o f 2S5A ssss Shan ! / ! , b o t th e s u t h o r s I n d i c e te d i h e t th e d l f e r e n c e s w e re n o t 20? s i e t l s t c i l y sc;nS `3 c e n t, SO6 9 a e re a n t a l ( 5 ? ! co n d u e le n : t i o t lu n g t u n c io n h d bn&n f.mpaSlrsl 8n these* 2070 o rite rs es a r e s u lt o f w orK plac posore to te " c tts a i d io n o i c o n ta ln fra e 3072 a K !lc e 0 Thcty s ii^ e s U d t t v t i h s o r y o f expossnrs t o te B c e os in d i c a le d by 2073 nuqtocr o? y e a rs a o ployait.j s n d s tto k ln c l ) l i t o * y e as In d i c a ta d by nuMbar o f yem ' - 2CW ts k 4 t s * * d to bs o? t h * sama (o s m ltic d e o# ta p o ? ta e lo p r ti9 c t!n e FE* t 2075 5n o-ksrs e s p o s a d t o t a l e a fta s - c o r r a c t l o n f e r age c n <1 h a lg h . Lung fim c tS c n 2B?7 os o p p a r e n tly n o t * f f c t n o rfc e rs esposad to t a l e ho had n a v e r sm otisri, 2C2S Oo. f u r t h e f o n r f i d n a l u t u d t a s o r a n o e rfa d t o v a r i i\ f t h t s prs> SraSnary 2070 fn d ln o . F in a l5 y c s s tlre a tn ii o r fn d c e s o f p a s t exposurns basa-! on ??.l: n a asu re n tn ts o f c u r r e n t a p e s u r fs re n o t a s B I c o n r a a t m n i t i l c h a n g ss Sn 20B2 l f t fu n c t jo r s es me&suT'ad b y ch a n c e s ln FFM 1 . t->0 Sany In v e s t satos-s h a v * 20U5 e t u d ls r t th e hsetsfch o f cor Star f r>m th n S t a t e o Nw lorSc <-7\o w o ra upse! t o 20S> t a l e M l h o r l h o u t a s b e s t o r r a r a in e r a s s u s li t r a m o ! l t e s e n t h o p h y l; 1t o , and 206? c h r y s o llts i 2CSi9 A s t iit y Sn w h c h s i o s e n d syisplom s o? r e s * > ! r e t o r y Usaasa Sn m ln e r s e n t 38PO a i ll>ys o f an a s b e a il fo rra t a j e w s re co m p a rsd wS Lh th o s a Sn n ln a rs rat a s lS lo rs 2 6 0 ! o f s n o r .s s b e s tlfo r r e t a l e m s r e p o r t a d h y K o s s i a a t a ! C!i81 t n tncsoder 2092 n ib a s ts id y .'a 23S w o rkn rs cosed to a s b e s t l fe r ta le ln o ope ra tS o n s in 3094 S I., L e ^re n c a C o u n ty end ft! e o rk e rs sposed l o n o n a s h s s tl forra t a l e sn an 2fW op<>cat(on Sn i.s w s C o u n iy . M e d ic a l anl o n c u p c t lo n a l h i s t o r i a s wr o h tcE n a d ., WCD 001100 n3 m e n u ;r dhakt M d p h y s ic a l r iu w i fita n s , in d u g in o a cheut ro n n t m o irs , wre perform ed, ivi & UV ?*>;vi .V O CJ vovA.i ~fe*.O 'w<5Jr(.57W * ' i WU) Cv lOo51^*5J3*9\rJ, 3t f* Sv! .A\ i** aC* Mex*. wW"*--*> te rM-" Fv> QflyI 3b Sr o i-i* i? SI; ivwv*** * a* cr a; ->sorU?3.*#fo3cZBfjAff*g"vi<>H-e-*).i.i`St&Cfrn3ro3^g3C..<~*9i*~*:`Ot*?1l**>1. ttt,c`vimAe*-imi*.>>.,Vttr?nr'tetf33snor5*:?a5g"Nvg/D*-ts>j*"..>S"1vetfnarStD0Ar\fb3aa.iw*-t*>t?n-i-'i'<-COtrr;OiS3jf".'jrT-?--"S*!-a*t":*-*m)*a>.ir'' 3 ys o33 Va-- VcVr>ii <Sis3S-3>^--~ il 3 tr-j.<- o n vF O 3-* -Q3*i? . 9) Om r0t r5* 3a C\. ?3 i0ft r03r*;i?o .3't> f0VrV>?f) ?k5* f3'-`*U3p---$0-jtf-Ve-*o453rrfS^*t*4, VoOftit.:'4.n1Ir3r1?*r '2) $ O '*e* ut o; NO1jiorC(O,1OV-*, i 1 >* *. -faT*5*-y-*^ *aCtt*tiff! O Vi, `0-i. fe V i0 "S: if0 * cCT r*inv-.., 4C^#\y to <v>:tA\ytUvf**J O i "OI O 3 *R p' 5fr"re** *m* -Oi urP&51i-xmS1 5H 9w*** M flt3:et> 30 tei *<wA !k --ftj> eVx v> icA* Ji 1rOwtt3x O f'-aS 3 tCi'VJiil V0H*U* #3*s' VK3 *<Vn*** fv "*oCi gt0*t-' A f#t w~ it CA- S 2r3es *2--* a 3T ! r *ce(A2r. *o3n- 9 --n 32?0tft ? r>V fXXcUrimJz>CAmii c 3 - X* >3 maw osi TXXCr m > C. H?> >oerM---3Tzwcr*i>. *--PPXeeO>2<nnTT XZ --rr>.: msXXa*Z?i. fK* *3u3 333' *231 <v *ur-wi* o>1 1 tOo --SJ*iwJ 3*> fe &l wilff *u s *SJ UUJi I *-" 0 r50. , r ^0 tuf O Q5 SQVr>J X 2*o**9> cfal rT-:i' i <JI"I-u>rJ*. e>. :3-o I'N; 3ta 3 sP m>0l :.r- *>*4 M"VOr-3SuJv 3P * tn S. WO1Kt1-S 3 O-*' 3tA 9-1 Z3T *A:*-1sr-s po*or' 0<JrA* *f*- f--|Kln> t IZNi taa . Dw 3 9 i WCD 001101 I'ALC F IN 1! ! 0RAI1 P ?c2t rs s o o r S * r s w i h f i s p l r a o r y sym ptom st. lln J t H i ; h s t ` c p ^ iir.* on S i 79 i n eorlcers sjiosrc so ashesj ? o rm Seje m s i -s conoarrJ y| tli tiros fn woric" tu c mn* >cKJ <euBos1 ka) te c V0. t/sv230uw*">31I S4c4* 5c PE t* C c 1*1 . wiVa-0Ij 0 e v uccauaycQM-?* ewic< c** i **wN *q--Le4**i. 4t(->911 iO4 kyte> L. wJntAeJ PC SCo wcCWt** uu<nv. (teUcVSf**l w xO& *fVt*oii *.JeiI04AA. tcoo n 5O3* 5r*. Se"atsj <oW *> r &&0in c!3 a wiic.?, E u U >M0u--JV*cO-AS3t(cQs frA*. jwa -- s --Aupi tOj*- s<vtoccis*t> e5001* *O3 utr ***>! Xj<Z0 t <t s t*uoWV*ai*c cJ V03O)t * UVc2I, 8 o 0j* zteci K<3 r o*<*$!20I(+T0Af*5>i A0l raOai csu6 jcja*i* Uc4 iocfl <3 cg uecn? e 0 veeOt*U6Ebc4Bii*i* /pJ; Mmc* tU6ccu*203r03) Vctz '<43u<sgcMoJJa*3 K-lt0A2mt>Sc*io 5k`. siKtsa9 t*A--t*?3.40)' i eo: --u"3j c 1?0?S?? & k(A> r&m**> KOm I6A M SJ Xi A/wu: ,CiK V<r K* wC --4 <5 O CS t c f* *srSK}J> cAUJ crOC02wv*<il <t t MaVCCfE4ccTI.* *<fe4es, .0Oow(9ScEaa* o T? C0?i iAaM4#5; 5tO.Sv fjI fIA1 i% --ceor t3 "rUa c16l4o*5 w'c0 3L9.00 C 5 *<m33i *vT C (UtWi c naWa4 280l cwu cQor> 2 </C"J0vsM4 4 *ca *150cC5205E)* 01-* <uC;.&l --SI cu 10 %fj 3Auect2* uo <<s* ca ' 6c(cu33 A0J V<n0aAi> Ltf. i6*-ii C cc CCVeu <um a3. ecSJ <sceC3r Ge <m33* Vi .0g X8Wi-c 8- ctt*tnia*i y>o0 tC06. ts ttucunC <0<> v*Ut\l> 8 0 4-# *4 Xs* 5oc5i k51. tAmoci *<<osuwjvt*) .<2I0c5A? ce3 tSre. OrVVkcI) *ju i>ecc** '3a t0> J1ucS54 r4-1 X <wam-* owwecsi vVM02CVfa}iI K:C* VfVG***CjI! *AO(3yl 6 <A0Vb1*li vIecoi e tu! V--0 XVV*1II j<tCiw c CV M6 caKte wtttee rC*,* vi m*mt*ueM; S c cR 5f. AVolt *5 0 08ua, AOVJ (fQU > Vc&*I -tCQtz)l *rCm* Xtca Vku.t oza ** --O>;< 3 etws> r X0s *0 I%2t0asXy>t *i VCJ u Ic S\ 4tr-1t oert !* XwCittnee b. -0cJ Su3*?i A o ouV03ccalJ!-. M*r** 5-i ao o*(VrM-*7 *W*(t--ieri AKA* MotBVW&ic.> tu. Ste *a3 V*1, te t* jTift. 62' t(C. aa <eE T MH M %e* eca *> V0cK` V A# <1J3 <--u4cm5 4.VVc(0tG-Cte1e) c <8uoKlwVoH)i Ai0fi S aj* > i4! W*2AVVotMJ39)i 1X1 Xo *> 4!&Vu43-J?1) t0w anjXcttie,l "cr*?t 9VSu&etk. COi --A12Ofc"4l vkVut0Xei! u <C> wucs. *wiS V!ccCI' OnCl tcyi tOc*S. Awi wQ --2VVCteI* 'Xkcij cv'tuJ5l' <e*. Vgi Xi te Ve W Xe CVuCI1g<ctVSe81Ij Nc0---- cu t-5 s! ,ml 1 ir* s*> o * Oj <%* fu. *, *0v A tf 3 *M A ! m l S 0 *0 ^J f v o V *A3 *0 # 30 c * >3 * Ai rj F* , l l es A f* v t r j M A l r y A i A i A J V C A i f WCD 001102 S S3 Th 3 s*st. I fo r a ans !3 n o n a s b e s t2f o ra t e le o rk u r s o*tsd lo th s 8iO\tf RJ fi) V MAJ* &<*W $a jj #> 11 g y ifo o V ?v* is K tog K sS Sas# ftj 2H5 s 3-3 c* U4 MS i d'9i S3 3-ut tt & tOf feki9 ftrn*h **1 cj*> 7*3 3 1 * * K 8Wy Ut * ft f-' ra K - s e** 'f> n vt Vj H ft -? a .U) Sa5 a ia 7J < iV c 3 ?<1 m ;-3, 9 t{!< 2 4P fu A & f r> ft Vi c O ut; -' ft * 6 i* ft il (&b ft * rv> er m*#! St Kv. t3. li c <? Q Ma P IA .. 2 o p? Si Jh ^4. n 9 3* i w f? g % cl f? O r n *v a a tw> /* C\ 0 3 3 ft o ? C' * a <2 > ha 3 y 5. 5 tf o* es ft e o1 0 . 'S w 'a) is or .' 0 25 Sf: 3 c1 3 *0 M l> i *y> * ft S r-% t'. ft t.J <* 3 rr. . ft ->* y ev t '* 6a VH C M O `3 ft r*: il? ft n-f - * few* iS , i? fi u: 3 *i' 0 (!. A g 0r C aa *4 < r*- y a r n ( 3 g ? f H 7 D i- M. i* > 3 tmj $ L? n 'fi e. ft SffT 3 IS. fiJ %3 i S> 09 O **fr 3, 7 ft & *< 0 1 K Ka 3 ft ru c*? fan ft g r* Si ? 0 s 0 Vt jy k ff 3f 4b O f!' r-a 3n .3 P > se ft *. W ta avi Dj Jf I ti s f ft i ft i<' u. $ Hi 9 vr rt f *s 0 ?e' 0 <* Ma 9 ( U 21 S %3 A oC 3 2 ft 9 i tf* 0 ft Hr C*2 fe r ; ;J US 5 tl A 9V 2 Si 9U> O $ : * (t ft 37 to c^ 5 ft &f\ I ft r-* A ft ? sa 3 *k 17 n n 3> 3 f ** rt fc ? ' fl s3 g " *- w ft *9 * f* fa U t Si V X? va & rt tv H* 9 f!' S o <* o K ** o "i 1 <ic. w rt ft ftft r r? w 3 O 9 ft Cat St ft a L' r a* 3 ft 2> W a. r f* Ml ,. ji s. 3' io 3 3 I $ 0 .'. aa r o ft 0 ft S 3 w K * s ' <.- 1 0a 3 tfl ft 3 3 Ut 0C 3 B 5 .5 , i 7 ?<* r** lu j; s O * S Pi !? n O ft B <to C! 0 *% o u4 <> 3 % 3 Ar u ft Ui 3* V &t A f> s; VI it w ft 3 V S ft - : (* 3 Oe ft- 9 ft 5 ir* ft 5T O rt *1 0S <s. ft IT t ft 20 i a ra 3 < tm> c* r l' (A ** ft 3 rt " o r 3 0 ftT SL V 3(-i 5? y M9 ft a 3* w 2 u r* tt t* > K 3 A 7 e- a 3 r* 0 T3 o 'i O ft 3 o -- ft 51 " tft K * fi? ft < g M fi ** fca tV O C-* fr 3 "h Sa ar 3 03 3 0 ft fta fi c <5. t Sft 1 k if? si sr ft fil Si H & P V r fit *v V V vj; rv S* 2* *v.H .>* -ftl & 3 et* 9 ifi if} ft rf s `. ft' 3* f 3 0 .5 P> 3 a * y ft At o e. v' a taaa> Ut t> <2 la 3 "i (* e 3 Va 7 ft H t* 2 ft r> O 3 5 ai <! * u O ft $ Ut * <! ffc 7 O v> 3 fit r** rr 0 s RS sto : fil Ti <** & i C pi fl| ft U r ft ft a * ft M j 0* rv ft u Pt 5 0 ft a r* 0 ft f SaM j*j is M fe I i 'A ft r* *3 tP 5f*5 ft o 3 3 51 2T ft 5 n o* & * 153 3 ft * t * jj 0 (fl e. li' e? tu 0 fm* ft T U3 *9 s e & e* ?5 tr> 3 A o !* .T i 3A fr itf *"' A, s c S 3 !V A O ft (A) X r .J ft% 3 & A V> (A O rt ft r? * r> m* O S 6 `1 taS' ft 3-ti S3 ft rt* Srr. G3 *3 ti si ev 9 y S ft iV a y $ ft t* K' & t 4 w 0 1 ft Si 0h O 3"h 55 ft3 i* CX 0 ii t'? & 3* 5 Gb M* a.r> 3 0 s ,7 ft* * 3 A ftft ft ft <fV f ."' si `i era 0 o "1 3 SI r> kl tM* r 0 a rr libi 9a Sr & 0 "U rt* i^ , - 3 *9 w A O 3 r ct) 9 7 u3 a. ta ft jj W tfl ft 70 ft ta fi r fl* e 3 *> 6 Q V U* ft O ft c a r/ ei- A f b WCD 001103 U L f I IHST OUAKT t e is c w ! t a t o r y so u n c a r So n o n i:.t> itifo rm th a n In a s h e s tl fo rm l l c i l l l t r s , 22l<5 Most lu n r fu n c tio n m easurements were low er than norm al In b o th a s b e s i 3form 2285 e n d n o n a s b s s tS fo re i t a l c m i l i a r s M 'J l . V i t a l c a p a c it y was 2 3 . eX lo w e r th a n 2286 f t o r s a l i n e s tu e s tl io r in l a i c m i l l e r s e n ti 1.1,8% lo w e r I n th e n o n e s b e s tl tests t a l c 2267 w l i l s r s , end th e d iffg rn n e a hett-earn th e tw o p e rc e n ta re s was s t a t i s t i c a l l y 2250 s ig n if ic a n t 1P<0.,05S, S l 2 la r ly 0 th e p a rc e o U ra decrease from norm al v a lu e s 222C os' "1 t l c e p i c i i y r -t 8 s s c o n d . maximum b r e a t h in g c a p a c it y , e n d t o t a l sunc 5221 c e ? a c 5 ty was s l l c h t l y c r e e t e r in a s b e s t if e r m t e l e w o rk e rs th a n in 5222 nones h o s t I fo rm t e le s i l l e r s . The a u th o rs r e p o r te d th a t th e c o r r e la t io n was 2223 p o o r betw san th e a K ie n t o f o ;;p o s tirc to t a 'c d u s t end th e d sgree o f Jsipatrisjant 2224 o f l u n r f u n c t i o n , 3n a d d i t i o n , c o r r e l a t i o n s :-=ere n o t c o n s is t e n t he tw e e n th e 2225 c i-ta n t o f iu .i? fu n c tio n lirp a iric e n t and th decree o f la b o re d b ru a ih ln o o r tha 222* a s ia n t o f .roe n tg e n og ra p h !c rhongss In d le e tS v a o f p ulm onary f ib r o s is . 2223 The a u t h o r s 405 cone leafed t h e t , 3k c e r t a i n I n d l v l d i a J s , p ro lo n g e d 2230 s s p n s u r* t o n o n e s b a s t lto rs ) t a l c earn p i u d e s p u la o n a r y f i b r o s i s s i m i l a r t o t h a t 2231 a s s o c t i t i i d w it h p r o lo n c e d u n p o s e re t o a s h e s t i fo rm t a l c . 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In th * 22S3 w e rS p ia c e c a r S a p a Jr r e s p i r a t o r y ? w n c tlo n c, !>eitc e c c o r d in o t o ih a u t h o r s , a 2354 f t m s t u d ie s hat* tndS siato! t h a t eposur t o p o ta s h cteas n o t I n c r a c s * th e 22SJ5- p r a v a ! n e o o f r e s p i r a t o r y {3sasa,, T h u s , <si f fa y a n c o s in th e s e n a a s u ro n o n is 225? be&nsen p o ta s h and te le w o rkers in In d ic o s o f c h ro n ic r s p lr a t q r y 5ape8r*fc 2288 * r m r a l l k t l y t c h e rs r t f l a c t ! th s e n o f espesura to s t M it ih m t e le 2290 th a n w e r * d l J a ra n e a s o n t Meso t s i e a n d c o o w o r k e r s . 2202 F o r p u rp o s e s o f oomp/.' r ! s c n , ' ( n t iln c s f o r e c a i a n d p o ta s h w or Stars w ere 229$ a t ih is ?,sd h y se a I 3 0 - wear i n t e r v a l s ) b y h a i c h t 1 1 0 - a I n t c r n U ) b y sciofcinq 2294 h is t o r y ( c t r r s t iig f o r n a r n o r n a va r I end by y e a rs o? e a p in y ie a t <<15 y e a rs * 2295 S3 y e a rs ! t o th e d is t r ib u t e on o f these- v r ! t i s in th e ci'oiif o f 121 t e l e 22?ii w o rS a rs . 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Ifi 4 N<0 S. c A4 --3u c Cm g Mc W M *0 v> *0*> c 0 *c G' M *=> --* c fa S> mcrnm X c : *5 a. c- b C 2 2 t X4 p C 91 urn in o o3 in V C Va.i <f4 X 4) ,1 to (4 KJ >* N w *c- *4 r X i- uf*J M c. t-n> - c X3 St' ij Cm f A4 X T5 04 C <0 w 0 o o `V - 0 n 0i C iMTM tmr. U! R V. " tt o V Xw Xa & "v z* <4 VI nc s- 7t 4 mm ? 0 4l >4 M* u 4 Ml c 4 M*O4 2 r am C <y & U1 L. S? y 'J <c 1 <v 4 X VI 4 <k-*l o Cm oo1r* ii if <4 Sg| 30 X X3 LS Ml c Hi w m*rl c4 X *4 e 2e M G i vt V * E c U Cm "3 <w5 C 'O V. 4 c X r* u M w mJ G X *4 m4 *e t4 G "S K C * 9 ea > G km a c 0 e G 4 sI km Cem c MO VI k. X c>v c H c o in km <3 G c fl 0* c h. * oi w L-18 > X tm b s in km o* i4t <?? >. c 0 4 X in Li 0 6 Co M Jti u <y >C* MC 4 41 c k. 02 S e c mi 4M4 > k. c X 0 fj c 0 u 4eMj mI mJ X k. c 4e> >c 1*0 c c &c X4 04 la k. t 0 X*J 00 *3 u XoJ 0 Co 0 Sp* c m o }* mOl > 5> <0 VI b 9 & %cm 0 I* Ot o a fS X$ o> S' *v e^. <r\ c* % es* ?v r. rv-?5 'jh 03 0(4 o c0* Q C VC 1M 1-i. C <? n eb r- & SQ a tft Oi sVi c o in iV M* pg r*1 . - flat Irf>i n ii*N. WCD 001112 !. I r:.c Hirr ijhah d l g e s t l y e ssystfs wri m u r ! y s . t a n tl c c i t o th n e x p e c te d v , lin e s . rhe (>/L r a t i o s 557 f o r canes? o f th e ly m p h a tic and h a isa top o t s t l e U ssuas am ! f o r a c c id e n ts Mi-re 5559 e jla va tsd , lU h o u d i n o t s i f t is 1 1 c a 1ly s i r r s iflc a n t. 252! Dsnn*nt f t e l S59J c o n c lu d e d t h a t w o rk e rs m p lo ye d a t t h i s t a l c m ine rind 35 3S i l l fta d an a x c s s s lv r i s k o f m o r t a l i t y fro m lu n g c a n c e r a n d fro m non m a lig n a n t 23,?2 r e s p i r a t o r y d is e a s e , W o rk e rs t t h i s p l a n t w ere a s p o s a d t o t a l c c o n t a i n l n c 2335 i r s n a H t s a n d p n t h o p h y l51 t s h t it U t i l e f r e e S i l i c a , th e a u t h o r s h n S its v a tl t h a t ,5337 k rs is e S ita s a n d a n t h o p h y i i l t w e re p r o b a b ly th e ptrEme o t l o l o r j l c a g e n ts 326 s s c e .ia ta d w i t h She S n c r a s a In r e s p l r . i t o r y c a n c e r a n d nonm al f cuisnl 2529 r e s p i r a t o r y d is e a s e iis\ th e s e t a l c w o rk e rs Descent a t e l r e l a t e d t h a t num erous 3531 e p ic ! !o io e S s s t u d ie s !6 C 06 i 0623 had shown t h s t F in n is h s o r t e r s e xp o se d t o 3533 a n tfc o p fcy5S t h a d an S n crM 'S d r i s k o f ifs w a lo p in g lo n g c a n c e r . However,, no 2535 sssas o f ysoihaSSo s e re r e p o r te d Jn any o f hose s t u d i e s S i n c e th e one 2535 w o rk e r In t h is s tu d y S59i who d e v ilo p e d m esotheliom a had a ls o w orked In th a 253? la o s ir K C t Son C net;scry., w h u re ha c o u ld h a ve t>n exposed- t o o t h e r ty p e s o f 253C as b e s ts fo ra : m in e r a ls ,, Demon t e t s i d i d n o t a t t r i b u t e t h i s ca so t o e x p o s u re t o 2539 t r e r e o l t t s o r a n t h o p h y liilt o T he y s e rg g e s te d , w i * r t: t h a t th e p o s s i b i l i t y 25^5 t h a t sK poss'ro t o t r a K B l I t * o r a o t h o p iiy l 11 te eouErt causa m e s o th e l lo ic s he 25-33 s tu d is ! f u r t h e r The a u t h o r s n o t e d t h a t f o u r o f n in e w o rk e rs ho d ie d o f lu n g 25 44 c a n c e r h<S w o rk e d e t th e t a l c p l a n t s t u d ie d 'f o r <1 y e a r O n ly one h a d w o rk e d 3 5 if i e t a n o th e r t S c p je o t end f o r o n ly 5 M o n th s . The a u th o r s I n d ic a t e d i t was 2W 2 p ietssS bls th a t b r l f it p a v d e l a t e le v a te d con cant r a t Io n s o f a s lw s t i fo ra 25'tiii M in e r a ls sal r h i hfc c s t o d e U i i w i t h an I n c r e a s e d r i s k o f d e v e lo p ln t in n o c a n c e r 2550 end r.o ts d th a t on such o b s e rv a tio n laid been p re v io u s ly re p o rte d 1595. In a /6 4 I' 'I i WCD 001113 WCD 001114 fA LC HMST DIlAFf s ii t y o M o r i a l l i y tri w'nrftw rs e x p o s e d l o V e rm n n l t a l e t l i a t d ld n o t e o n tn ln 252 ssbas 1i o ra raneifsSS; S e lle n e t a l 152 1 fo u n d th a t m ln e rs b tit n o t m llie r s had 553 en e te re e s e d r l t o efcVaoprv- io n q c a n c a r . L i t o rte o a n t t a l 5 4 9 1 , Saleesre 5 6 sb e i 1531 c t a d t h e t , o r t t l o r # whc d i t d o? S ;*vi c a n c a r, tfe d u r iS o n s 2536 o a p l e i ' tM ttt t n t tenas r im t c o n s rfe re b s y , s n t 5 h * t soas tur r I s k v a y 253? a ih o rto Qetmsnt a i e ; 5 9 Z ld n o i d n is r m n s whsstiar t h s tu n e c n c e r r is ! c was 555 g ra -a ta r 2n m ln s rs o r s i l l e r s a sp o se t t e a s b a s ti fo rm t a i s , sit i i Js e f 2530 la t r 9 t ttta t b o th ( t e d lM shownd id e v e rlc to n s in th e d t n t lo n o sKposurs 253 t e t e Se a lo n e e r a s f e e s t l o r a * l s o r o r fc e r * *te d in r f n i S un? s e s te a r. 2534 A s tu d y o t c r t i l U y in w trfcars xposd t # esbe s i l forra t e le , f r s t 2335 r* p c r i S Sn 0 6 7 6 3 3 , n s i:p < & is d by K in in e lt S e t a,' n 1 9 /4 >` A 4 } , S n ria rs 2333 a re toposed t o a t e l e t h e t c s n U ln e d -5S ir s e s l i c e a n d e re mnpicyecS n 233? in e * and m iiE 2539 In c iu tte d i n h s sfcady e ra 780 r t o r i a l i t i t e r twra e sp o sad o r e t 25? 0 ia e s t 5 y se r b e ta s * 900 a n d 1949 o r w e re a p lo y a d in 1940 a n d h a ri 2 S ? I p r s i r i o t i s l y feeen tipos:S i o a E c cfeist f o r a i 8 s t 5 y s .trs 6 < i,, Kan s m irc e s 2573 c In s 'orss io n w * r ra w ie w a d b y t?e a u ih r e r s , ln c i in o d e a i.ii c e r t i f i c i s * n .id 2575 r a e n r d s a i t ile c o m p a a s , f t p p r o p r l a t o h n s p t a i s , p r i t a l a p h y s tc o n s red m 2 573 ih e s in i i S R d s s irS a i h y r e n e ig p a rts ie n t. T hoy f o t jn r i t h a t 'Wi re t ita 2 60 t a l e 2573 m orfcors ( 2 * 1 m J 3 id * t e n 940 a m 5969 The ( i t e r v i o io s a t satis tras 2379 3 . S yos's tram p a 3 S -M y s a r s , a n d t h t a se ra g e d u r * t ! a n o e xp e s u ro 2o t a le 253C test a * 2 4 .5 y o c r e i r a n e a 1 5 -4 7 y s n r s t The p r c e n l a cp o tenths ( r t m 2535 r e r d le e tis s re s e s a n d i r o s c a n c a r o f t r e s j i s r a l o r y a n d <l! r a s i t r a c s ! 2583 tssE<v mcs' is '.'s e x p o s e d t o t a l e a s c o tn p ire if wl t h th e p e r c e n t a je s a t Sselhs irosa II t 'C l 'j -`" i ;>.'Mrs, u o s is n v v n e z a * to iw ij j m u ju v io m j 0 5 p e s tx S x e m $ m H S j.-m io j s a id n i!? i e* C* 1 0g s 41 a U ivi " <3 e s 00 *9 " i | o I * c fe y P r. 0ta i n Zt s `-1 3 3*i f t r^* f1 4* a a. 3 i} f t CT '*3 w 'A, &' l P . > V* tu j vi i0f .l ft U ft* Ifl c*? 3 C t fc c 1I?V O r> *0 35 fe. ! a* * *> WM 5 3 `fl * (A Si * 33 . t t? 0 3 v> % rf. 8 JJ fx> 'O CEfl ft 0 r f t kV Sr ? 3 Ri ffl * e Cl p > ft CT * S' * 3 p tX V f s* ft s y> fl S' r <* * X VI ' FC *1 3 5* CT -* ct " 0 fi* - a -1 ft 01* =? ft l3 V. .1; 1 ft. & .j c* * ct 0 fc CT f t 3 *3 W Ti 3 *. fti VI O *3 0* Q IV S 3 3 3> 3 2P 3 u ti 3 CT |W a ft ft U 2 ft> UI II VI VI * 'li 0UI fl l ft 2 3 t s (a CT a t* -: 9 <5? 3 3 O r> a 3O U f? ft s y par IV y in f t ft . 0 fl %' in 0 J f l * ct fl & fi* O fl 3 J " 1 CT T 0 a ft y 3 3 fi 9 0 ri O ft % CT f t I,' rax o S ' V 0 T) W*r 3 i * 3 3 w ' a i 3 3 S<3 J f 33 3 rft { Ua r a. a & S n ft* * 3 g s A ft 'J S 3 \S re ft c UI 3 f O o 3& t* t-4 a n 'j <r? 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M 0 V %0 fty* f*V m c. fci si In fi`V -e Ifi v. o & fi r * fi* (u tt * i l rl VJ1 ff lfl WCD 001132 w o i- R M ij o? p ftsatix s jv q jo i,f a j ! 9 ' 9 il) * o | JWVii j ` OT>' > 9 Sh' Ss9l l " 9 l ! s.5v*t3 w n i " S M V > !> i r' i m " .i t i ( r ft.f ivi V t(Vr c> ite. 1 *H2te51 tete* 8 I- 1 BISCt->e Bw p. 1V4Ji U i wftie M >>* t i WWt--3 *? V ;# W 3 fe fi w S8 la t U P ifgFX>a 4>f rt /% Is S>r9-i.> 47 tf**%Vn*%ir*s* f"?tt jS $*> ** B >m1*l*te ttK?te* te >** * t fi & <0=-i ag ft 'A aa3*i**>5 -> 9WttA*e si /?y Vij O. i?V S A> V) te `#r-: it *jftet* sS#!* t3fet* frt ft y q(iS3cfGKf;tPfii te. . tei W 1 K "fH#t r tei f # 6X&y=->' tfp('5fnMeHfj*fi. te*1 3a' sW0;' *w 9Ta<1,oA-s O u fni t fi te WiaOetlelJ <41* Ss*if 9% 3 V Vf!' * f* 3 < 2>mi 'Si S; 's*'. 3 MCMi! 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(* .8 A# g V, V t S "-i 4 V- G % 3 SI & 9 r-, V > * M *- * ' <"s i% f yM> Ufi C % * v> A* Mi m i Og S. " f l ik. Mi 3 f t CM tm V ft C - ? % fvt k ` e. t ,J ig *3 ?? 1 Ji a V ;? Ir W 4 y* m& fcr M * t--r g s Vf k (K l l V*-` * *-> Cf mi w * tra t. Mi- (A 1 & ili m) i s Vs ft 4 A5 w5 s? *+3 * * v> t* i i A? fi MT. s 9 3 *4? '* f ij w # sC *3*5 V St 9V V w i i V- 1 H .? . >t5. m M *5 .. o 3 0 {t . ' (r* :y, V. O im 1 Ti g .C -< f i fi h g ofc) -C S * ft t .tS w 0 1* > . .T 'ft U e* i? W 0 `* h SsJM n V r> V P -* - i ft* a rv < * f it n m 1* S n aa 1 fi ft0 r 'i m.< Me i w 'ft* fV SM m ^ % JH pn t*? n WCD 001134 M :)S K H S U U 4 O ? I S O S *M c fS O tj U J t'tS ? ! ? M J U jjj 3 B )M g S C U P * u t :* S S J ] | j n psxoqs e '{w '(ub jak surft,;st'voo<o a 3 j er, * M 9 j1 3saqe*u tt j x V S- (9 *- w ,` V & ? $ fc* w IVJ -4 VA .V - t Vt hw <vi :i 5 tu w w > i l ! W f** f i r: : $ A U- M *. G CS ft m ft * i r 4* '*: te ftCfc # i*- Jt S # teUH * y n A -* `S 1 0 ki V--. 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X fc* O - - "j U. e, 5 Ai ^ <c-J-fc W g * 8- P* *. fl) !"' H S *.*f>l fif-kx-i .r.*t!js; eAn *tO-*}j <*5i * AJ O Z fSi ** 5$ m c r* i c .C Pxj o AT ** $> r*i Cm **' PM f T C C? 1 i 4 if i V ia A *- t' *5 A M 3# #-- f>*< laC 5. .J yy :* ateJ t * C-i *> r*a <c-e: Mw g *= V in S 1 3 n illO V U * s. fi **l MJ (J ' s* %s C J 1-- f; TM r* *X><. O ^ I^C/-1 M> vCi->'lOi' V -vr> f^, lo i kc WCD 001138 6SW 00 aOM <a 2 CS Ifl 'C r . C K- t _,, & " S yC ffwl. 1 - IA-, & W*> VeJ tftS* i,* *: r , l w I > : g * u , ** O fi "3 *) i' * e ; `.-e '***. iSo! Hw C '<??> iy gL w& <* 'S fi3 1 * t ' > : s tl sC I . C O r * S) CJ O 3 l? l 4C s, w 0 & 4 ,-: >* t 49 *e S +J u. .> UM* r* *. -> .9 J ^ i V! V tfc- 0,(A --(S**> I ? ** i SS ? J ^3 * Z > V <' V c l V r.M ? V* T< C*i J * > ** > G > sSi 'S- s * Si 9w 1 ?'U 3sC tuerli i >, %*S3 2. L` Ai CS O MT a V 'S*! w a.u5 u 4--* <a i?i Ai 5 L* n cl > * * (*> s *"-' t.- Si U (4 S- * * ^ 0 C J O c mJcJ; f- O r O* g C t? r; *> --, t?. ^. O ISS tS A : #> " ! *r s. -V J.>* O1w *i '? ** c c !J w* TC o r w 0 t-. fS** o ..c I '{? -. w 8 JS 5 `iUMMART IlH fch'Kfc'CTb OM IMMANE 1-lKIM L'XtMISUHfc Tl TALC S 4 V- & K O *"* --?o nt fv* J ,i-; 5 f 4E V. 4. <m5 % n 48 45 45 fi W --k 3 V 9 T Is. * 1 S !.t? > Ifi1;^ ! ~ g fl i O .(C Il E , vi* * J. -- C * 9# rS 3 '1?3 T X - i* ir. y K . , *: ** u \ ( t : i.i TV O <1 *O*4 ^ >* . ? ?. il' Vi y r; ~ fl -s C ( ** cM H 0 Q. fc, <.-; _* -U< >KT o U r. f t A5 ?* 4.. 3 r:Sw T? c; * >v! Q V*'- rt J'> b* O t Cl P .C 3l -J 5* Cwi fc i 0 *s C. ; &Q sK -J s$s. '' o <' * (Ai Ri 'm G. ui 3> 9 *** i rnr *4.-i. S 5- ir 9 If* i <n *s .... O u L s : 3 - 0 JgS %i' T?* 35 * I*9 c V *>*" <# C-- fl fc M, O t-,: b l O <-.' r tf? V .J 5 t0i t ?*3 * Jv ; V* *i ** t., S O *?' y *c 4* rj t' U n (i S St i */ * * * %* t V C s 0c %* % II Ifl *! O ct>-S^ ^ *c S? ?4- . * V f- t YJj . I ro* 4* n -. i . * -g f ,;tSi--r*i Vf>i ere **CC .Ov> , & 5 ,,Vi ;gi! e o >. e* M i s fts ^ v 1 <5 .T < f ) `s: '*-> -s v**' 4 ? LO f K { 4M U * f>: V. % >M & R <n 8 S 85i 82r S S S*3SS *# Q ? 3** ' 8 3 `S' f . a f\; *.* ` V r* r ftf.M*i n'-nfi? A3 #*in^ ii-*1O 3 ."?*V**f iftr<* MC- MP M' M Mt f M* ' M< t % * Y i^'?f f^f5* k*~??.A` f* WCD 001140 im o o aoM -n i n avi u v i' i t m v j !> C I V. C V S T V 1 i fi i iO tf IT rfi 'S 5 wtas w ta* * W *1,, ,(J y o ., * j <^-5 ;; o ^ 3 i l i Li * 4 .-'f-w i*u 3 IV O . * ^ tt w *V, -- ' ' 46 V i ^ c. V-- A1 J^. b o +* % 0 P* e .-J *-- ** -C i; .W i* |p S * * S '3 y IK vt a r *^-.. l?<V-. * V. i i '** V> f l $ -- W 1 0 '- m - K0 ft, V s * iC- !.- V <} ^ f S(? W f l\\ 0 -s: kl U tao # % - '*' G .* iii 'f l w tz Ul S 5^- <1 a l O P. d * * <$ * s 4w r" -l*a i-: > Sr B *= S4 ^ ^W r r !. ** k w U t\p m '; w W 2? C 'fi i -* O a* i -j; s w . :- v * s 0 *? O %i i . ->*iw 2g .S* ri * - ^ S .. ' fit 0 G v > c r. i * CJ w c ,0 '^ a C O l'* s ; * c t . e K * > d'I % - o s . r. J * 1 * s f 9 e w . K 3 ** *> i i ,, O S. s Q * o V L M >: s a n s e- ivg* S 3V 45 5 > tfV O r*i. R Q c- m X. r*w 8? CJ O * f. -0 Ct - 4 G a . o XT U j.. < ^ . ` S M J 7 .W A i rQ ! - *V, 5f; V SC V* V fc % S ,f! S % fc S 0 c ts a L% O JV ~ o J C X} g la V 2tf li 1 V Ai 1 ' S >; Ij -S >4 v *5 O ' J3 *0 * --V *0 ii *\ S C " *' I is - *< ? U l W X * * Sft e * u Pi -i- *>, $ ' It *0 S `V w . o `VC *- iy iA ** kc '-*- "# u r /* s *? CL n 32 S l i >Ui g r~- * * -:: (> i * l S3 ? (*i a 1^5 A V * 4f * m f** H 23 s M AA w r? `W trv Sh. W e- Iff v* : tL w K TO jfc ? **" fr 'Pi V- *: 8 L8 " si. j A -* it* * f-> *=5 r 'S S J e fc au i - F * -- * V - r- O-- r-H i r . ^ 3 C -- *n * & ^ O &. * f* Vi` >*t < K S Iss S t 9 d u f * f* - P -. J*?** **> ^k 3 O & 3 & & ' j i < P*C*> a & - i> c . * * ****** v i 1-* y * Mf ni* Ti` <*9* W if HT- i- f P % $ : S i * ; n 4*i ftff `i** *|f * <rs 'H v * s i* 03 3505 I AI.C H H . T HAKT U H U : 1 1 1 -/ (CUNflMUHUl K l - t t e r s UM A N IM A C S t X P O S il) T U T A L C U lf IN H A L A T IO N 35U 3912 M l] je u 3515 T u le Typ 5g>#S#* Rai Muaher Apprex Cswiewe- t*f C ta w U U w fcratten Ssjxaaars xpoaur in f / w 1 {S9'cm *~ ia r i S ilM ti H a f~ arsa* *t* ts *s t*rs :m v <*? 2 0 M s*#'**- H K ft*ri 2 1 s * * * * * * 5C ? 35 -B 3524 U 0,,5 hrAfi 300 0 ,5 3W e 1 ,2 0 0 1 ,2 0 0 Na c n *s jr*p crt#ii w erasad fr'M H iaacy s i w s o lE f ,hypsr~ piss? si a irto la r M *lie *y te s is t& S *61 26 3 m itasstairs Ms a 6 rs h r Ai. 33 &-VS Ko changas rsrt*2 Sili 30 w Hasi s t * r * 50 p * 3*% h A i 3f: s * aoo 366] 32 3533 1 ilwaat a r t 3 se 0,5 hr /t 30 t S20 ft 165.3 3536 Ha*ta rs 49 f' Oo%' h r / d 3$ *5 2 0 4ft 1 66.1 38 Hs risers a 0 ,0 2 . Sir. 52 3539 11.* . * 1 1661 1 42 U Ha s t a r s 4? P S 0..S5 hr 3 t 12 4 S6I 4 4 *P J8S i asraffi#*l e n i C a i e i th e ly i* * ire h o s p i t a l s f o r jty a s a rv a tS o p 4 9 w>sffdc.ai JsnV'BS Rd r * io * s " >: ? 3 M * W * B M M M W t r U l Cf W |/C U B 3S4T m a H I p a r i t y M M t l &!<; paw>4r sosr# In 3ats Stata l l * w VS* M M 4I 3M p ia tir t a l e I t h tr a c a q m m s i * * a f carb on atas, p e ?.;/ chilar It m >i -.its?,*. ? WCD 001142 05 em oo aoM A L C H i r . i D IM T lA ttl.l! l i l - l V. W 4* . > 6 ^ - !.. ^ C m r t 1** v*3 *2 W SS-S" 1C BSLu eri ^ 3 a s- * u c i? *-** & i i ** ' <3> ^M rt- < -l i *> -C V ' X f V r j ! X f& S e: lit; o w ; -" *5' & CJ 1*^ C (K ^'OW Ht ,< 5QJ *t5 ft 5# SK 5 7 C3 w if r*> i-1 ** X "** h 4* c5; <- 2 r: a * Ti cl 5g (3 * } it i .,-5 e a a rii * * j <* $ . .1 v> , v 3 P. t fi3 r *J A f r a* Ip c & '-V V; u Ui * ! h* un O- -- V ** l ^ e tO if ? * < 4 o <? fi f i $ * )$ $ aa SBtgfe S "S A S CT .Krt * J S f i V *. l tT>- > .:* 8 8 >? * l* t - \5 'A \ O * < f !*? J *. &* e-3 4s. .* .$4 a .* - >-. V *-* m* W Il Ai 8 t i V V? - 3 # ? 3 ^ V ' e . B ici ?.V V ,, * t J *> * *> * .. <4' **> ii -in *. O '- M i W H ^ 'if %* (.; v. 'V -in - 8# w il ^ <? 1*. V tm; * * P,* r * f " i- * <* am ?*> C? C ' O -> eii p * -* f*' ,*9 a? !!<? s ^ K iS .ii.: 4 ti *0 O O c& :c ^ f '.y 3553 ; I'AI C Hl MST IMAH T TAULE I I I - (CONTINUED) ;He ossi ih ?vfaibc<l w t L ele s e " R<fej c -o o'L S in e U, cJ a tn r*: LU Si i y f ,u s s n li e **. O v> <! - 5? jw e >*i $ r. * r'< o S f i O ! ti, S 0-- fri M iM - -'-i 2 * # -* '*1 a, e a 5. 0 to ns ?*** ? >* ^ g ** *"* % ** <e fi ac S . 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S ta ftl ift -- fcr* " A - 5 1 V ff ** - j J o S- 'C fl **t I*"* 3 S w* S ' fcr ta e fl n 3 * " fe * r * i fi r P* fV P Si t B r r rz S T r * n O Cf n> ta r w <* a ti ff. * ft g 33 A * U ft r S* j* S3 ' i w y ta r?- n c O tat flr f) 2i' t a* 0 ft r ft n lu 0 ft n 5S i1*' - i s Z i <*c- V f t 0 0 * ! r? " c*s* n r> Zi 3* B o 9 r Sta 3S s, 55 ta " 8 E? ft ? e ; jy ;*/ * * % * P O 5P tr * * < > r* n> i fi ta * * K ( j " }ia |6u3 p u * a i j j v " 5 WCD 001145 3481 t* leas ti s<t plattm t puap le * ` a r la eSr a a p l* o? M 9 5 throuqh e t <,* <- #* v u * * *1-9 i* : w j orf (1 rJ U W 0 <0 t. di 0 `W 'J ? & .e Ti .-1 o t 0 nr t i *J 0a2 c f t u i=J 0 , c tt 0 >n *# t 5? u n 8 s t V . u >;w OsW % c << V. c rm .'J t.4 fe S a m a <fe * 5 M c * t t> $ jj a e *J t c ? *N. t5 o s* t cJ cea 0* e w , $? ;; t O W t S U1! u >* t 6 .t c& <- u t * ? s* <j ri <* :e VJ * e to Vi o. t *> * O O ' fe -* *0 fl Vi ? C* c t; 2> 30 ti $ t?. t f t *, c t Si cr o-j o '- na t <S f t Cr* 6 <n * t * s l ! s ti* * _> 4 S fi S-s f* Ii m u v 3 *5 baofe f t -. u t v 2= T- > 6 *1 0t * * 0 2O VI ** S e V o) <K> g *& *<'0 Ai t Q ! "fe 74 51<-w j ) t i *- vb e . ; <W> t O o >.' */ 9 1i <3 <3t t 0-C 5 t i <% t t V, f t V . ) t X 3 *8v <Vv : *C *-> s i. ri o - t es 5 3n . 9 1 5e t O V i - IJ a J V v V > Mtf *. & uu *.5 ;5 w w *0 afW Crfc. fe u 1 0f y V 5 <3C* i Mi . JSI U tu ft y i t il r* Oi tu . G I J** t i* e o i" X jG A S t >i *w t"j t 3 1W a t ( vi 5y O t a . ; t f t -> * t U 4 >3 2l .0'-ti f t si W a G VS @ i Xf V - ,0f t i io f Sna t 4 S w * H g t .ti d 3G COT V?' :l Ir c-> - JJ T * rSS Wt V 9S V i c 3u i 5 % -: C C 3 <3M O 0tu 3 3 '0 GC O '- l- t jC VI A l til !> Vi _ t t t e f ye c c ft s tn _ VI 0 31c 5 1 5 n*w 4r *' c J d i <^> G- s i -i c c *r ic V. & rt t e t 0 ns S J UD X* l 5 >" CM ft J 3 i e VI &3r . 6' j 8 e K, TMc u2 > o e t ( t . 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Hi V &Vi ca> CyCOi) f *t0MH%01* WfuOft<n>v # S-.m (AnW9. C-o 3Ui i9c* y& 'aC?3 -AasPt;i SrfV' t 0s c*r3ft3m*tf*> y3 t09&<*-M?w nn fr*3v> ClaW *y 90% fi. Mff ?. (33 tO->1y & 0. p (i1"o? w 3ti' Vri X u> r3> *= O e* ?rw?* y (ff0f50,t, *>. ""S,-81*>* mPJ* P* fWi fyV tLcfpJKJi 9 Kt0r> a Srfc' Oc3 *t-& y' i2*-t f"1i *jQ0(9 *S fe '<&* pSff' y8ff00?1. oefa fAIfrUste0;l <<*sf me5** WfVrf3>i?c.*- 1a*>N0' **{* 0 0ewCA>yi* C"3! '<#S yfcV iGfft*o*.*?. ft 9* 5 3 Ws^J*, 8 !* is3tso ft 'fS3ft ft) ft s tw ,Sos'*frSX**f>i*eI>;y?> ta 9 *1Gft* y3w 0og* r3O0?*' ft-*j `cSw03Aen-, fWir Wf'SVSJ ifSii> T *")^K Vt* a *"rA"i- Sf3Qi- ** (04ti '4f%t .:03n5>' Ji3? ri s,*. 331f' 9ftf-4 5 .3a it> '0rS*v. &0 eaw 0 XtCrm*a*i 0ft f a a 0& *3O*V ft? VO arfVf03ITXD-tl)-. OM* 6< Jte rft3at. f? * .s S fsii tfrUii. ,e:pTti;-* c. 0tt3 p G9f* <** Csa S*fa*y> ri aQft*. CsO yr? *3* ft 2 y- r VsM ff3" CPyi>T. Cmi 3 3010<2e;0).r f(Zt*i' n0l0*OA> *3fUt *O*j CM "/laa>.* .cDA** n3a. ,a10S*9*~Xi*, O3 *3=i* <py**1 "J* 3 f4 &3 p3^> mft*t' 9 s ftl toft* tJAS *Sff[if"3Attt* 3 a. MJCMSS ft 3Cas 03 ?"f-ji '>SrrsOsti* Pt $cyrc--'1 i 3 s n ;> H e i s s t o ji'2 a b s s t ! a u s a r * rajjSn relisent t a k e s p i t e e WCD 001147 Jjct c eL2. W s * *3 VVci k< I0Ur. * 0 cGf4= 0r*. a* 'J cm S' 52 r. <3* A X3> VvJ * 2 PtC1fti, b 0a w * irV- 1ro- ij 9 f'>i+ c eMV3r*i c t0 o L> G U*ae 3 wC f<e1rii hi3 MP3l* i9 Ji 4w<<v: Vi3-n' '9 C Vi <9 *0J uK> -uCr? IV *V w r.-: G ' o n J^3 i* a tue w ti c 3 ? fi y0 - o W > i*l \T w s 'c C a fe. - r i C Cri O h> g u VI -- .5 ri t* eI 0 Si Si c . ts f i s3 3* fi o M <A c r ti 13 fi! U l ari a u W X ri i v-_l g i&M 5.M 3U*'S> z5-r* XcVV0<)* 1w rr% 12& s4 *1If} 0 6 c1>43 #30 1 =3ey i Ut 3*c e 36. 602 3 *<r$a 1 1643.1130 5 14so Aiun*.>1i #QuK$t <uri ft t*f*> w S & *<3>4 5 *t0-3 c . 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" & O C- * S O c* r* *-? C 3~ 't * <*x s .3 tev mm O V^ c* ft n 0 K , V. *r, f t ft 3 V5 V* f t *} 8 * ft* " il* <*' . ft Li w s**TM f ?4 & Ci* ' s g < F 3 i* n& * 0& c9 c y f ? ft*9 w .*7 n * sS- i 0 v*r <>* <t> 3j O **% m ft* 3 * ft P* & pj :* *3 T ? *$ *!&5 <*. <?* s? 8`-i f i# <* f * fci *- fi ? % 3 *w # 3 > *; 5< -ML. y ft* V 3*** fi'tfV ta f? t^s, JS .ft s Zd 3 i l (r. *! 8 f t s 3 ` t (i {B ftJJ "i t* o ' S* 3 ,` W Vi P; ili r- f t v> - **? tfl *? Z f 0 * ? ft 'Q ft! JJ 3 **C 2? ft #* i * *9* r-> # S a <5 0 a . sa r* S-'- r # dm S . b ( '* ?-* ?- ft b W & **? te t %. t f t (f. e t J * f. % g fit ;*f i- f f t (> & ft a fs* S* y s ^3 f t C* 0 rv S rv 6 C* & 3 <? r* Hr-t 3 f" a ft* % r* t S *** ` tfr o Wi O te f t ft 2T ft Cl ft & f.* ft Cl Ifi X O 3 B* ft x i Q'. V) te Ci' 1^ Ut ft a. 5* f i l 5 I W C D 001149 ftIC h i Mi l UHAfT s a le ' ! Oti ! ,, in f a s t . u o s t o i th e t a l c o ra sained c o n ta in s o n i y ia -ftc j pur. I 9 * t * l c S 0 0 J ,, h Sm purifclas b? m n e r a ii; s | lj c t a s o r carbocwstes n d a ra 3808 i n f t e r o * o r n e a f lb r e u a i # r e , b i i i th s cto n o t us ; y i n t e r f e r e w i t h a 3902 In te n d e d u s e s o f t o t e a n d * r n o t rsrao'ia d ir o n : t a i e p ro d u c ts -. I b s q u a s t lo n 3MM th a n r i sa s a s t o w h ic h c o n o o n e n t a t t e l e p r o d u c t t s o r * M s o ^ c d l y 3HG& a c t i v a , K i i n i i i t ! ( 4 0 ) show ed t h a t t a i e c o n t a i n i n g f i b r o u s s n s r a ls was 2806 a o r* hazardous te t a lc w o rke rs th a n th a t w ith o u t f ib e r s . Schapers and 3 O urran 5075 r a p c r c d t h a t th e i I h r ou s i r a r a c l i t s c o n t a n t o f t e l s ss*s ha 2 8 m M in fa c to r in ca tistn d ) ffu s s p n e iia ic n lH * In axpisr& oente a n it a ls . (k w riu 380f t c o n ta in e d i n t e l e i s a ls o b e lie v e d t o c a u sa o r s sa y o re re s p o n s e i l i ) , 38)1 R is 1o p e r a tiv e . t h e r e fo r e , t h a t t o e r a ) o a ts th e h e a lth h a z a rd s off t a l c 3 6 i 5 o u s t s * p o * u r 5 t h o m in o r a ) c o m p o s itio n nsi t h e i r w o r p h o lo fy S h o a l 8 a ls o ho .3814 a n a ly s e d , a n y t e c h n iq u e * h ave b e a n m v a lo p e r t f o r t h i s p u r p o s e , a n d * o s t 3SS o f th is. . h " t h a * n r v l w a d o r a r e h e n e v a lu a te d b y NIOSH 5 3 501 . SSs? i n b o t h th e o r i g in a l l i i i i fin d th e r e v i s e d i t ! ? ! N8MSH a s b e s to s 38 ! 3 c r i t e r i a tfoC iidD niSi o p t ic a l c o u n t n o o f f ib e r s wag, racoam snded f o r th e SfiiC' w a lu e t'e n o S u o rft a r e xp o su re t o s b a s to s . T h is r.s h o d can a is e ba a d a p t ad 3PT0 o r B v a s u s tlo n o f i n i s r t a r a ' e s p o s u ra t o a s b o s to s , A i r s s o p e s w are 3821 e e l la s t e d on e n s a b ra n o f i l t e r in an o p e n -fa c e f i l t e r h o ld e r . A p o r t io n o f 3632 th e f i l t e r as m ounted on a s l i m end th a n re n d e ro d tra n s p a re n t fo r 3323 c o o n ; jn r- w i t h phase c o n t r a s t j>> r r c s copy a t 4 0 0 -6 0 0 pow er n a n t f I c a tio n .. 28?4 P a r t i c l e s I o n c e r th e n 6 (<;J t t h et la n d t h - t o - o s a it . e e r r a t i o o f 3*1 o r 3826 rs a is ? te a r* c o u n t d es f i b e r s . U ecnusa c f th e t l e l t o f r e s o l u t i o n o f Chs $ 3823 3i-jh f, m ic ro s c o p e a n d th Impose f i b e r d e f i n i t i o n , t h s r e s u l t a n t f i b e r WCD 001150 11 I )un>s ueaip*i s ? sejtJflSE jtj o ? p ; |d d v #e u es 5se: | " o ej ' & a N>* V* ?> l " J K li O v G** # 3 (5 & ff V y-. cS fi < ,PJ '** &U. a vr * o ft # s *0 ) f :{ 'y a w .** & rf- 5 5 IS g a " i *** <3 r t <s Afe 'V s a r ft * . f 4J ** afif PO >; *v ? fi ? & i ? fc '1 i A* e te ** * t i v 1 p 3" l0 $ ov5 0 V- O' 1; ?> S Ni *-- t- n `3 t t <* 0 > ?>' i 5" r* e 0? rf r CT g t ' 5? J t (* <** 33P o Ja) ** S* 3t. " ` a * fs 1*1 S. * tr ? S) " r? 9 a1 ** iil t ct a r> *% >. S* O & 0 0 ' r-' S` ( f* CT' 3 * 3 w x i jr $P ir 0* "1 * sr Vii *O Wt tfc " o 5< *W SS K ; * 3 aT CT S Mt PO Ha 0 ' 0 H* t!rr '< * fi t' O P? 1 SX * ~i rsi 0 t*t 3 CT 0ft A r? y S' # '5 ij 3 & fe r> y k ffi E k k k Ar A A t ' & si * tf A W SU ** O te=j & i^V IT g r--s i* % 1 CS .v: r-i iT _ ** li 4t s ST* i es C- rt \ CT*G ari* & H c-> i t St 4*>* <lia* r,t &Sj > B # f i*r <*. 6 tt rs A -K T X !M*. <!' i t. O K' i** "Kr ff f -S <HF 3 w G * it K"I a pr> 2 ? fi e s a 15, e n #*- '*> V i 4 * I1* m ** C--3 !* r 3 ' c% e; t ai 0 V? n o fp CT <*> f *i3 & i l g *: a 1 fi YV : i fc o5 5-i. 1 *^ 5fJ ==ti t sr I F*- *c & 4*> ;ri ' 1* df it 'S' T3 i r t* i t <3? ifi r i i5' s # ,T,5 2 sC U8tA p -Jfr in O p* a S* & **i JT t fS * e rs> t ii f"*l ' fr ri o 5 w t?v w a r c . r b Sr* a *> CT u ce-->> s* t <* a Gf it >i?4> 55 V3 *3, 2 o *; a f* i:.' rv io w> 0 o ;~* 0 pfi 0 3 <*) > ' fy t l !5 M G 'S * o G s? g . S s >5* $ ?-* 3 s CT 0' t, Cd s o f i a # <y O 5 a * 3 *>> T Si X? 0; *K 1 t. i-a r rv * t fl* CT * O GL C u* j 1&> M ** f t 6 fc 'S O " 3p. ` *"* 3 >; U!!i UV r 'd w A ;*> =*l 4 fty <U) e* r:+i > w> f i CT ; y #V s? f> | i> 0 CT rv % I fra li^ isti jfi! * Bfl 1 -*1i e: ai- Q F '% 3 *" e t3 mo i> b `-i ES CTr* rs- 3 Q CT te'> IO * rt e ;r !; * c'i' ft* ;y ff t'i o O ' (* W i t fi f iS * frr e? 3 0 S <* S' * I5S> ,3t s fi) "i <" f t <* f i 0 <L f4 <3 f. *14 ii^v> i ^ ; r> -v ST ? i` a g f JW ftj * ** td Sk ( toSs k M U W * W a X +I t : A u N? p# $ s * i 4T* 3* " v> fi V . tr 3b <Or?* s* if O w f' fr1 CT CTa FTJ. % c3l .0 Vi C i fri r< dir W t W> 0 . TO ff S1 i : 'S IA * M, 0- > `4 '> O ff* s li te 3 $ i f f fri 0 Q. 0 **t3 3 w 91' ftri* O il y rra 3 iso * A r> 0 fri O* ite 3 CT X t D <J!i fs :& "i r--* fv CT te fi Vyf CTi. 'si % ir, W i r o *' us tr*- ? 5" *v 3 V i ! r-> g Ul f t f fil JJ 3 C1% r*> a K> CT " 0' * fA fi! ru v * te S :* .1 ci te " t:'e V 2i iji V " 3 3 as =i w (i ta n i s S*1 3 S 8 C?, CT 0/ O O te 0 Xi n f t , n )5 s r >t->* i ft! o r> I S f i i- * c te 3 -: f3 *1 f w ** o> 2J <* fi ft P* te n rr CT CT 3 it g ft. w 0 er 3 t S? ft S' C"? ;'* ft l T* 3 i - S O 55 <*;' t) X? 3 Sw 1 CT s 3 sa i ' i*** O rr s ? CT 3 ?y 3 # S 51 c--> f i ta f S s *i n 1 CTrt CT T' es * 3 V0y 0 J r w3 h ff *? s ^3 fe CT r i s B> 3 te I te ti" fi te ff* i> i I.**, c g&.' "1 ,> te CT 3 r.^ r.i rs S5 ar? C->T' i> KT ft cr rs. fte i% . Wl CT %<au m i s *#.isotK j i s q j j go EKpu WCD 001151 3ai>d IAI.C H M S l' DllAt-' r Irs n a m i sa io r />l r e t r i v i m ic i o s c o p y , I t i a aa e n l f | c a t io n p o w e r o f U bO O - 39bV -50, QQOX, can e s a m in a a i l p a r t i c l e s v i s u a l l y . Uy c o m p a rin g m o rp h u lo i)! c 34360 c h a r a c t e r 1 s t t c s . su ch as l o n r U i - t o - a l d i h r a t i o , li t f f r a c l l o n c o n t r a s t 3835 fitjis r S o c io i c h a r a c te r is tic s ,, ano eii<3 c lv a ra c te r I s l l c s , v a rio u s f ib e r s 3962 In a t a le scm pla can li* m e n t i f le d , t-.sn'jisr a t a ! J l6 t> l r e p o r te d th a t 3863 a e p h i h o le s { t r a m o n t a a n d a n t h o p b y l l l t s i sn u c h r y s o t l l e s earn Ixs a e s ly 3665 lis t I n n i t sh e d by t h i s te c h n iq u e ,, b u t a < sp h ib o la s isey be d i f f i c u l t t o 1963 ( U s U n tu is h fr o c t a lc f ib e r s . 2U68 X - r a y i l l f f r a c t o m e t r y I s e s t a n d a r d as b e r c i ocj! c te c h n iq u e s us@d I n th 3BfcV a n a ly s is o f s o i l s ! c r y s t a l l i n e b a se s nei h a s heed w id e ly u so d f o r a n a ly s is 3B70 o f C a lc c a u p la s , decause o f c S ia ra c ts ri s i 8c d i f f r a c t i o n o f S -ra y bscras hy 3S72 t e l e end i t s a s s o c ia ta c i m in e ra l c r y s t a ls , q u a l i t a t i v e d e te r ail n a tio n o f th a 3673 cca p e rm n ts o f t a l c s a a p le s can ha' ciade. Q u a n t it a t iv e a n a ly s is f o r eech 3874 ccapcnont. can be cone by co m p a rin e th e I n t e n s it ie s o f a p p ro p ria te 34375 d i f f r a c t i o n p e a ks w it h th o s e o f c a l i b r a t e d s t a n d a r d s . A num ber o f a a c o H e n t 3877 books a n d r o v l e v s U 9 6 , 11 7, i ! H,, 11V, 1201 h a ve d is c u s s e d X - r a y d ! f f r a c t o r c s ir y 3678 i n e s t a s io fc' a ch a l n o r a l m n e r a l l y h a s I t s own d i s t i n c t d i f f r a c t i o n 2.879 s p e c tru m #>caus o f i t s c r y s t a l l i n e s t r u c t u r e . Q u a n t lt a t f . v a i y , a s t a n d a r d 3238. n e e d s t o ba p ra p a r a rt f o r ra 11 b r a t io n ,, 5 e r e v ie w o f c u r r a n t te c h n iq u e f o r 3882 a n a ly s is o f fib e r s In t a lc . _ Lancer e t a i 11218 p o in te d o u t th e c r i t i c a l 3393 p h a s e o f s e le c t i n r a m in e r a l s t a n d a r d o f h i <h p u r i t y , p r o p e r s a ia p ls JtHU p re p a r a tio n am i d i l u t i o n o f th e s ta n d a rd m a t r lc . 28U.I X -ra y d i f f r a c t i o n a n a ly s is f o r q u a r t z tas bean d is c u s s e d i n th e HOSH HUiU c r y s t a l l i n e s iile , c r i t e r i a docum ant 152 2 1 . I n t h i s m e th o d , r s s p l r s b l e t ssi WCD 001152 ! 15 V A U J i s / j O f i M S S 4 $ a K O S ,JO P * } 9 n 9 3 * 5 Iw 3 rtJ 3 u $ 'O ? till K> * 1 3 t J 'ft rii Vi i 4ft ; >jt U 18 W & ft? *Io4J* J Si V; a S4 VP u K* o . X c o #r t3i* itsa gu S3 "i <5 -fe a* 5Ci aV r>* PS> $ j B ? g. , m o SS i* Wi' **te * rit'. 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Oa a w fi t M U 4 - j f. 8 0G eC G f i 9 W V a n V .4 r t f i U G Oc1 fl fi fl y u 0 VI u t O44 cIA c Cm cU u ri M3 4M C sa y uc 4" w. > *u SA f i G* 4 y 44 0 fi fi V . 3 a y fa fa c fl y (5 s<0 d> f i ff fi y SA W C u fa f l f l f i 2 a C VI a 3 C y 4M u c b* VI VI y 3% O t MO C2 o fi w 2 y 5o S g y *> f i O f 4 * <4 r- <s C 6 3 ft H vi U 5* W 44 42 C C f 6 V) * S C f i a ya & e u fi cc* ou 1 C *j SA IA V 6 e SJ J * e b 3 fl G P W > W C'I Md V fi fi y vt C0 y y MM y uO e A y 3 L t c (J Q a fi fi 4 C0 o fa ffai. fi fa u fl iS u fl > V f i 4 IA 0 f i fa* y ey y C wa y y O w cr V O f i > u mil 0 f l a O c 4 c a O' % G In a w y 4M fl fi M o fl Um a fl * f i cf i w i 5 f O c c 4M 0. u 6 4 fi P 4 , c a fl U a fi O s6 f ff fa < w c* c 3 C "V w y _ 4M fa 4fa .M * u 4 t f i W mj r SA C X h> f l MM s M y u i Um fa (3 fl mCm a u ) a V fi y --4 IA Vt w y ta -3 Co *0 o Mm w fi c4 y C 44 a a M 8 fi w w V G fa v t e X V ? f l <M4 M Uy A a fai y y fa i , TJ --* v t k y f l Um fi IA a 0 fa f i ew fSi f i c C f i V. 0 0, J sO c fl > f l fi U t: SI Cy V vt fl 4 fa 5 fa y >> oM faM e i O 3 c Af l u TKt --4 y M 4 1 k . y y a t fi J fai fl S f l Vt .4 f i > 4 Sg U 1 O c 0 u a MK? >s G 40 Q y fl c Cc % u mm c Cm fa fl iA f i fi X c fi fi r. 0 fat ( 3 f i c f i C S u o . 4~ j C J Va s ?? y Cu fi u ! ai fl a f l 5 y cv t * 4=3 8 %t fa t i f i f l e a s u fl f i fa fl A fl 3 Cy Vt A a rm fl fi *x a G fl u X. fi U* fd u Q m3 fa f i <e 0 v t fa <5 R VI f i SA -y Cc cM| y c* C a Cl SA S e c a c0 e "O G A --3 C 0 25 --O f2i >j * w f i -O a u VI U> 0 --4 0w 4M Cm fa 0 V) e U u O U Cm fi (U - j wC fi 2. c fi S y 4M * fi aC 4M f i U 4M e c 2 fa G -- IA 3 fl 0 fa CT IA IA #5 f i A g fl fi Cl S 1 fa IA C yc 4M y 44 4M fi 0t? fa *4 SA fa ^i C 4.- .o o J w 2 3 < O ' V 3 O 0 fSi 0 u A u fi V) w * t a-* Sm Vr C 40 40 UV s VI cl C 1 W) t cy f i f i u SsS &R a s 3 f l f l fat cU V. U .* V. O * 3 O U O 4M >m a M* 0 Li O fi V a Go cf l f i 4M O 04 (A Mm w fa fl W 4M 4M S3P o- 4M Q, 6 ut V, 14 < 4) a ?f l t . c <A SA e c > . -fi *5 C 5 y fa fl t VI fl y a M* w s y fl Gfl 1 y y G SA *M fi0 g 5 t e* ** o <N c. R c-<* S i < v fN S a f i <n R S i f O Rn N RR s? S c* nR 8 flU i > r fM t -t V fT V O c? R R% a r*t G* ?! ft a WCD 001154 '4 IH>< p ai.i: u n i r uhai'T A u ta n vivane? t c h n ;.|!i8 t h a i can lis iish iI l n th n n y s is o f U l i f o i i s j W C H i e r e is t s t h a t a f t r a n s m is s io n s l s c t r o n 1 c r o s c c p y e i l h s U c t ( l a rs 3?5I e le c t r o n i t H r s t U c n >C?9I l l i i s 1s b s s d o r e p r i n c i p i t i s t a l l a r t o * - r y 3952 t j ' i'r a c i Son e x c e p t t h e t an o e tro n hom ro a * r a n s n il ss n i a c t i on 3953 le r e ix o p a ; ::s s d c ont? an g y s m e li a r s c f U t lim p i o J s e n f i y z s d t on SPSS S i >ns* iS o o l l i b o r t o r s s a i in e d c a m i th e i s i t V i t m n r i p t c i ! 3956 ttnss.' iSSons a n d p i o n n i ' a l l e r r o i c t i o n t i i i p i a r * it o t o m in o d ? ro * 3-75? d i f f r a c t i o n p a t t e r n s t a iS f f e m n t i a t a t i i r y s o t n o i fr c a i em ph'.b a ta s 3 W e lla e e v s r , U m p e r i i e n t e r s p e c ie * i t h n U t * o o p h lb o le r o o p s i i l i c<ir,n<st but 39*! SSent gt S<fc. A i e K e t e f ' s n i te st rs^p o S fe P t o r s o r s n i t h e r ib o r S n to a 3 060 f e v o r e t t l* a x is r e n a ly s is The ?*S t r th e em m ror I n th e le c t r o n b e e n , 306: tte S hS cSsr h a i l b e r t h e t 02.n h s e n a iy te d ? howciVEr. i h i n f i h e r s o a y nui 3 561 ( n i r o t cnotssit i n t e r f r e n c e s t o p r o S d c * us d i f f r a c t i o n p a t t o f A v 3065 g a Sef S n tS w a n a l y s ia o i h # flb e s rs i n a t a i e t o e p j , a le e t r o o im e 3966 lo itr o c h e esl ce i a n a ly s is in cowhlnc 1 i on w i t h t r e n s w is s lo n o r scanni.-; 3 0 6 / lo e ir u n s le r s s e o p y 3a s o a n tia # a i o d . T h * e l e c t r o n b e a * ai e ro cha i c a 3060 s n e ly s la s b a s a ti o n th c o n c e p t t h a t X - r a y s c h a r a c i s r a t c <o.f th a * 1 em snt 3 * ?0 p r s e n t r. e gps<ciiB9 st e r s predije?! :-jf*n i t Ss bo;sl>ard3d w i t h h i h e n a n y 33? e le c tro n * Y* p ro b e ts clin lo u e s , M ve ia n q th d ic t e r s i va and e n e r y 39/3 d is p e rs iv e 8 r*y *s te y s js s e ra usad, ih la t t a r is a ra in c a m ly sert 3973 h *c a u s e l i raqt-s Ss ss tie sa f o r n a n a sysS s | i 9 | ,, A il . e la m a n ts e i t h an 3973 a to a s * n tM h e r q r a e te r tita n IO con s n e l yxed it h i b i s p roba te c ltn lq u s 3976 Thisu c h e e lc e l c o a p o s t in n o f iU x t r o r p a r t * in <5 rfn iflrm n s d CwtpiocS j?7'5 f i U t th a B sorpiieto 4 r. i n f o r n a i Sor; to ri v e ri H a t s e m ln * ,s l e ro s c o p y o r III WCD 001155 i'At.e f im ' . i; o iti-T M l t c t c d c re a e l t c t m Si t j r t c t o M t r y , a f i b e r can Ira s p e d f l a p y 3920 S<l*mtt f i s t i as i c s is In a r - ti s p e d as. The use o f an -1 n c tro a m ic ro s c o p e 3981 c a l a f a r s p s c ia . p r s p a r a i loss a t th e sim p* Xum-oe tte noI ilssnant SJOJ 31*42 hew, d e s c r ib e d su c h a p r o r a it e - . H r ! s f y * th a c | r s a m p is c a i k c U d o n a 3M5* Esaarena f i l t e r as tire n s fa rr a te an lu c t r o n a t t r o t c o p * g r i d a f t e r t i x 21*65 sem o1 - Ss f t : s a d S th a c e to n e e n d eoa t a d s e lth c a r b o n , Tha 3,a s tra i 300? m ic ro s c o p y s o d X - r a y a rte l y s la te c h n iq u e i s q u i t s t i & const 1i t << g a d 3085 rcq :: m 3 M i h i r * sp e n sivn sq u ip m sn t end s p e c ia l t r e lo lw i, b a t i t is th e 3000 o n ly erta' S hat w i l l Clam erei d e f i n i t i * r e s u l t s - 3W U her* is no sim p le and s a tis fa c to r y Shod fo r a n a ly s is o f is le 2092 sa p i ti so 5:l a c ia t i e i t h e r fro * e rk ro o m n r o r irosa b o l t p o w d e r e S o m 3993 methods w e ll as X -ra y d if f r a c t io n o r s a l a c te d a re a e le c tro n d if f r a c t io n A W * -id e n tify o n ly th e a in o ra i c o n te n t nu t n o t th e shape o f th e p a r tic le * . 3993 s b e r n e t hods soci s o p t i c a l m ic ro s c o p y and tr a n s m is s io n e le c t r o n 3996 m ic ro s c o p y 111 r e . s o l ih o shape o f * p a r t i e ls bst n o t th e n a t u r e o f SS;s 3998 s in a r a l c o n te n ta C o m b in a tio n os' soraa o f th e m e th o d s * su ch as t h e one 3 W s u g g e st ! b y t h e C a s s a s tic<, T o i | e 6 r y 0 a n d F r e c r e n c A s s o c ia t io n Si- o n ly 4000 s u it a b le A q u e i i t a t i r o id e n t if ic a t io n O n ly th e com bined te c h n iq u e c# 400$ e n e ra y - d is p e r s i* X -ray a n a ly s is c o u p le d w ith tra n s m is s io n o r sca n n in g 4002 s le c tra n m icro sco p y can p e rfo rm q u a lit a t iv a and q u a n tita tiv e a n a ly s is a t 5002 th e same tim e T h e r e fo r e * recommends t h is te c h n iq u e fo r a n a ly s is o f 4005 t a l c d i s i sam ples n d th e a ir b o r n e a s b e s to s f ib e r s t h a t may be c o n ta in e d in i 006 She s a m p le s , A i r s a m p le s s h o u ld hn c o l l e c t e d on cn a p s n - ia e a aaabyane 4006 f ilt e r . , h lh a r c o n c e n tra tio n can he ite te ro in e d fra n the number o f fib e rs 4COO p o s i t i v e l y i d e n t i f i e d w i t h i n a ra n d o m ly s e le c t e d num ber o f r i d o p e n in g s WCD 001156 IIV 40? i* esami n in i f o r .3i-h sam pln I 101. D ecal i s >f t h i s te c h n iq u e i r e re s e n te il 4 0 t ih> a lo e * w e r esjjO E sc a t < m m ppe _ c c c <O4B c a c u B* u & C --j s u * j b O ft X -> mmtmm K ft vr* fi 7C s> cx *at CM c ** T* 7 a* 25 <V0 c y . VI -- e a0 *2 -- * in O. m O , s> E w as *2 Q m 0 3Ui fi 'S u f i M <rs rw ! ri ca m o v> ! a JC J J - i S 3 51VI W fi of i -- QC im h* -B 3 c> in i v> . 4 fi <y C J<i?tSJ>i 7m2 .3!) Cf 5 0 M U O vfi 1*0i 5 eu V. G- tfl 9 f* 44 C fc M C0 fi *> U cl r^J VI 0> : fc. %* 4 o * <U3* ** Sx 1M) e6 O i* <! U V) Uo G fjt * C *jC via 1v> s C aa > s >. U ow > 6I fi m <~ e0 S -X a <-J P *2JC e V ee > c tVU0jI c VJ v t ex 44a f i d la -, V >fl w c Bo '' 3 M B tJ n(CaV 0Irt t c 5i o VI >-. M* er Ci 1M j r ; O r. s. ci fi K fi g g H '3A c a j\c *5"W # y O e h s* c 3w <# o- 2C uo Jft w /J Hflfl C 0y a om* f i m s 4Sx *> 1f i a fi t. a 3u f i C WJ * 0 O Sm i ki n : w S c o VJ i. a- . C m f i fi U 0J U --fl ' J c c I u> f i *5 3$? A a S. g c :k 3f i u 0 0C ,g* J N. J V C 1 U 0 0t- w I fi e (Z 4U fi c% 4a flJ U j C B* 10 V. r.VJ a: ,* i 29 0i u c U 35 3U il 4cC f i c <c4 a >. 4C o 3S C 3U 0 ri o<140 ba fi 4 Sr3 C a .u Lif S ml Wl e S X X J D S0 41 0 u K. e. X C --* * Vi c m u P> fO 4f i b a ' J t a c CS C eJB VT*! * ! U a X <4Ml w 9cri S* ! u J C fij b a ai V 3 4fci c c * ,f i tn <5 4 b otb - * ri c U O- <UM et c 44C c-O -- IM P C a V fi We J b 55M g 04c o" n i a 27m M 4V O S Vfl 3X ru imJ U C 14 1> fi <4 04 C* 44x . X & -- C fi tr. t <N r t) U O n . y*. M XU no r* c as C lu \V Cs 1.1 C Cl . -- r. fi f 'i *2 BM fl 4 G fi C C wf m V u c U OKlKeJ) fi C E 7e1 M ry --B CM n* lu fi <4 fi4 w g 0 B fi C >r> i* i c* c cwl V BU fi C w31 IC E b G O f) e; M rv CD nCu c i -- 0t o m: s fi 03 e -- On ** iJ c %*>> 04. C fi co U c fi 0 (X a o - * * VI V f i .< 3 5 o jl w. * N. N 81 2e Jl 14<j- * i C e t <v C -* eB no 1W c X VI 5 0 Ziu O j; il o ma X f-- b 0 1W g b > *a f i s e w s c 5 M e * m C C <3o m m n e *s* rC" ? V WCD 001157 IALC H l.' i f u im FT exposure a t l , o / 2 nipper ( 2 / M . 7 v j / cii m l, fo llo u iH t by sawyers ( h lo c k e r s , c50")>i s l s l m e r v . a n d p e n c l l m n n ) a t 124 mppcf 154 m c / c u hi) . 1047 Tiia D i v i s i o n o f I n d u s t r i a l H y g i e n e o f t h e Mew forte S t a t e L a b o r <3(KU D e p a r t m e n t h a s c o n d u c t e d e x t e n s i v e s u r v e y s o f t a l c n i n e s a n d m i l t s w i t h i n {049 the s t e la sin ce the I y JO'S, and th u s, the d a ta o f f e r e d one o f th a best <050 exam ples o f Im provements In th e work e n v ir o n m e n t. The f i r s t s tu d y was 405.7 r e p o r t e d hy S l e g a i and a s s o c i a t e s 1 3 4 , 1 3 0 1 I n IV 43 on p l a n t s l o c a t e d I n S t . 6053 Latironce County. Slldqel lm plm jers were used to c o lle c t a i r samples, and <!064 o v o r a t * c o n c e n t r a t i o n s o f 1 , 3 5 0 mppcf ( 2 5 r ac/c u m) f o r d r i l l i n g , 1 , 2 0 0 40 55 mppcf 1 2 1 5 m j / c u m) f o r s t o p l n g , e n d 3 5 m ppc f ( 5 . H m c /c u ml f o r m o c k l n o 4057 w are fo un d I n th a m ines. I n th e m i l l i n g p l a n t s , w o rk e rs who p e rfo rm e d 4058 t>acdn< were exposed a t *03 mppcf 1 2 7 .2 m r/c u s i), those In v o lv e d In manual `060 h a u l I nr. w a r e x p o s e d a t 2 1 5 m pp cf ( 3 5 .S m : / c u m ) , a n d e x p o s u r e s a t o t h a r t062 o p e r a t i o n s e r e i n t h e r a n g e o f 4 6 - 0 3 m ppcf < J . 7 - * 5 . 5 m g /c u m ) . A fo l l o w i ^ 4064 stud** r e p o r t e d by K l e t n f e i d 1351 I n 1055 found a d r a m a t i c Improvement I n 3C65 t h e w o r k p l a c e e n v i r o n m e n t . I n t h e m i n e s , a v e r a g e c o n c e n t r a t i o n s w e r e o n l y { 0 6 6 3 mppcf 0 . 5 n g / c n m) f o r d r i l l i n g , 4 m pp cf ( 0 . 6 m r / c u m> f?or m u c k l n r , a n d >jC67 16 - 3 7 mppcf ( l . d - 6 . 2 m j / c i i m> f o r v a r i o u s o p e r a t i o n s I n t h e a i d i n g p l a n t s . iOSB These la p r o v e m e n t s u e r e n r o u d i t a b o u t by a number o f chan cos I n c i i i d l n c J t 4 0 7 0 dl l I I In c , mine vo n t 1 l o t i o n , e n c lo s u r e o f th e e l e v a t o r s a n d c h u te s , i07o i n s t a l l a t i o n of au ln m a tic bagging machines, c o n v e y o rlie d car lo a d in g , 4071 d ls c o n tln u > n c e o f th e b io room, and p r o v is io n o f lo c a l exhaust 4072 v e n t i l a t i o n . Chances o f s im ila r na m l tilde were a ls o seen in mines and 40 73 n d l l l n j p l a n t s I n L e w i s C o u n t y I n Me f u r k d u r l n o t h e same t i m a p e r i o d WCD 001158 121 I a u : H ; r o i m HT Ih K ) . T h * b ta A re;>ortul by the a u th o rs a r a p r s 2Rltl in ra iilc IV - l It 4076 s h o u ld br, point* out th a t the ,> *a -IV 4 j data as ru p o r im t by K i o l n i e M a t a l 4077 (35J wars <4iferent than th n s* report! b y iila o sl at a l 1.34,130}. lha 7073 S a t t a r r e p o r t s incittiin*. n or data hut report! o n ly tha a v e ra g s v a lu e s . ii? WCD 001159 `oa< SC*36 4JM? 308S> [ ALC KIM ST OHAHT UHl.fc' l'!~l CflK!'AHI SON ( IWlSr C'INCISKTNAT E<IUS i H TAI.C PLANTS 1 N M tttllK S f A f f A. P la n ts i n S i . Law rancs C ou n ty SOPS 4096 409B SOI ssinss 4 02 U ri iiin c i >$103 stuck}! t 41 OS S i l l s 40A C ru sh ! n c 5107 S c r s s n S n g mao tit 11In c 4109 Garners and Separators 1 0 Hetjclnrj 4 i e8 Blot-: roost 4! 82 Open chut as 4113 O ld {u p t c 19451 Low Mad H I rti Av d l 411 2 .BOO B id 2 It) 475 (20 22 iH n -A ft-m m 65 690 tdO SI 6? 136 69 32 75 271 92 se a* . 172>) 72d 520 210 151 5 15 1, V6 2,4 do 1,227 21 b l 440 525 Mat-: ( 11146-1050) Low Mad. lit tii Av 0 2. 5 2 4 a 5 U 9,i& JJ5A i 3 3 260 a 35 6B 5 15 SO 3 20 2! 3 7 PO D iscontinued D iscontinued &3 22 37 22 5; 24 < un 559 *123 4122 4135 4 I2 | ;2 S *130 131 4! 23 M in s 4 V & * d r i l l Jr, 4 1 3 5 s s k i j 4133 I3 a *1 3? 1M O 414? *1 *2 4? 4 3 *1 4 4 M ills C iiisrtin# Screen!*} Ml U in r Sip *t S ii# riin r iAi.t; i i h . i okai-i lAiin i v - i icoNrimiEO) ClIMI'AW IMM Oh l)U5l CONCtMlI?AfIONS IM IALC J'LVMiS m Ni-rt rouK srAre It. f'J a n ts I n L e w is Cotcnly O ld (up to 19451 Lo* Med. 1(1<jh Av Mew <1946-19581 Low Med. H I i h Av (Ho <(ust c folu n ts done) 104 d 2B0 17! 152 352 612 306 47 242 515 256 179 663 1,000 537 BO (0/ 320 I W 0 2.5 5 19 23 69 106 13 15 25 26 19 66 23 1 7,5 5 41 27 113 96 55 23 60 37 113 66 WCD 001161 '<22, Si bo ui.c hwst ntwn A f t e r thn o n s ln e a r ln u c o n t r o ls uere i n s t lt u t t iit In i'X5-|SitSil0 ths> t r i m i o f >iii>S JaproHun*rU o f the wort; en viro n m e n t seaiKRCJ to have re a ch e d a ste a d y s t a t e a s 5.2 in d ic a t e d Si* ihei d st a in T a ble I V - i 0 w hich f a r e com piSad by SCgeinfeld a " a l J641 tn *IS -i 3 W 4 . f h j s tr e n d was sp u rte d s in e th e re Iw ii n o t be?.n a n y m ajor change in 4145 u n d a r round t a l c m in in c te c h n o lo c y s in e s wet d r l i l t n c u a s In tro d u c e d . I t s h o u ld 3156 a l s o ba p o in t e d out th a t tha fre q u e n cy of the s a u p l l n r , a c c u ra c y o f th S s t a s end <SI5d r< sp rs6 n itl v a n a ss o f the sam ples were unitnoun. 91-1-00 a o M ?* r -A l rinvi. irivm i if . 'i H .n v i 4 : ib -.ft- >v}i SaWV * -V . || ^y5 e*3 .%> o <0 P 4 * -fe o $ N* -- - A * (*yN' tei U* u * <Um*-* * u. Wi aNl L\- *4 --I ">1' . o >- * s R VfO g ` * 1 V*: Srmv* Cf _r *S 0 3 fe & o fta 'iS 5H *> t2v n 3* e S c. w? r* Bi t e M in < .* O* n M en ** ^'3 s :J * 0^ tft SMM.*` 1 S*2 to <% s 5E s * Ci n cS-^' 3 O se c n ?? ( * - &J r> ` ; -- \t o N* N> *. * o < cc w C > -- Ut r i ai f N C * 5NI *ct *5 a * s "t5 *- h- Ni O i < t ^3 Ut -.'. & O U* j. o :3 U,* r *4 " i * Slei! c > iT 5{ :I 1 < s N w ru a e* Ni Ni Ur L- a Jk. N i W Ni U * NJ * Ni i\i CJ -U i _N -> N* w Ui A Ni ' c o* V' > V N N i bJ * 5 c Isi 1 in i i*^ *A V1 J * K ' O r U1 A i\i o { Ni Ni 1A ?O _ o > O t -** <3> 6 i % " t i 'S fC. ,f* W -4 u un < J W U t. Uf 7 < O -s s V *a i. A A* <Kl N R C 3 K >> ns -3 > <> > --. ^< C rr eJ. a * T 5; a. 'i z * r i 0 <r. US > c & * s n --m r- z .T r - - i "i)i --s if > ' r 2* 4 3 > -- s -i 3 33 3 f) *^> v?l * 4 3 !l IAI.C H i t 01/AKT More re c e n tly ,, r e s p ir a b le d u s t c o n c e n tra tio n s have been used to 4 2 1 2 d e te r m in e sorS ssr s x p o s u re t o t a l c . M otim iy t a t t i n t us m l t h i s s a m p lin g 425 3 iso n e t i n t o v a s t w t i th e o rl: e n v ir o n n a n t I n t h r e e t a i e p r o t t i c l n r p la n t s 4214 I n K e ro o n t In IP 7 6 e n d l `A7n, Th d o e rs w a rs fo u n d to he e x p o s e d a t f),, 4 - 2 . 0 <5216 iwj/ cu is < 2 ,6 - 1 2 m p p c fl u l t h th n d r i l l e r . s c ra p e r,, a m i w u ck& rs h a v in '; 257 h ir h o r o K p o s u re s . fh s s u tn o r s fo u n d th a t th s Js-borars and m ainte n a n ce 4219 p e rs o n n e l c o u ld a ls o be exposed a t h ` rtt c o n c e n tra i Is o s d tp u n d jn r on t h e ir 4220 or?: fis s lg n a e n ts . 3n th e o p e n - p it nod e a lk - l n m in e s , th e aw orarjo 4228 c o n c e n tra tio n s a t a l l o p e ra tio n s ta r e h iq h e ir th a n In rtd e r ro m d a ln ss 4222 s l t h o ito m a ttc m in im m achina o p e ra to rs exposed a t 6 ,,B mr/cv. a 174.8 n p p e fi <5224 a n d (Sri H s r s a t 3,,U m q /c u m ( 2 . ; . 8 m p p c f) . A v e ra g e c o n c e n t r a t Rons I n th a 4226 m l l i l n ; p la n t s w are fo u n d t o be 0 ,, 9 - 2 .9 m o/cu m < 6 ,4 m p p c f). The c re is lta rs , *2 2 6 d ry n il 11 o p e r a to r s b a n < a rs c, a n d p e l l e t i z e r s mbs' c s n e r a lly e x p o s e d e t th a 4228 upper c o n c e n tra tio n ra n c s . 4230 WKIS1 c o n d u c te d an i n d u s t r i a l h y g ie n e s u r v e y o f a m ine a n d ml U i n Mew 423! f o r i S ta t s in IPV6 in h i ch r e s p ir a b le d o s t c o n c e n tr a tio n s a n d t o t a l ust 4 2 3 ! c o u n ts w e re fcuo o th e p a ra m e te rs m e a su re d . The THA r e s p ir a b le d u s t 3.232 c c - n c m t r a t lo n s ra n g e d fro m 0 .4 2 im j / c i i a f o r th e m a in te n a n c e m e c h a n ic t o 4233 I ,,2 9 B |/c u s fo r th e scra p p & r man. Ihe c o rre s p o n d in g d u s t count 4234 c o n c e n tr a tio n s w ere 1 .6 an d 1 1 .8 m p p c f, r e s p e c t iv e ly . Tha h ig h e s t d u s t 2236 c o u n t fo u n d was 15.8 m pp cf f o r th e m u c k e r! th e r e s p ir a b le d u s t 4236 c o n c e n t r a t io n as n o t d e te r m in e d . In th e m i l l , th e TWA r e s p S r a h lo d u s t 4337 c o n c e n t r e t I on r r n o e t i fro m 0 . 2 6 t o 2 .9 0 .a /cu w. ?he il 11 r i g h t a n d h is 4238 h a lp e r a e rs exposed a t c o n c e n tra tio n s h it h e r than 2 a c /a < m Hfsli.e th e WCD 001164 127 U U . H h > T UKAt-T p a cke rh o e is# o r k f ir s wst* s a p o s e .i a l il, f i m ; / s n 01 fin is * 4> f w itesi c o n n i 4 2 (0 s c o c s n tre tS o n s in th e t i l i u * >e eia t i r m l n e d , a h i eh r a n is t i fro ra 0 . 0 l o 3 .0 4241 a p p e f. 4243 s s M i t t i o i e u i o .4 flS r0 t e l e o r a Ss < ) ) f it t im i n i t h o t h e r s l a s r e i s . 4244 S tn c * siici s s o r le le d B in a r s is as a s b e s ti fo n a i i b a r s tf'.il fra * s i l i c e a ra 4 2 (5 K s jo r h a o jt h o ? . rn s s febei r c o n o .'f t t r a t i nns Ss? userfcplacs s i f nove a lc o hieesn 4244 S iW a s it # t# d * t h * HI-iiSM s i* id y S43# S on Wes ?orS: S t e l i t e l e n p a r u t io n 4247 asswefcloosri b o v * a ls o d t t f r s i m i l a s tx -js io s f i b a r a m c s u t r e t lo n s a n d f r a * 424# S i l c i ! c o n c e n tr a ii w * * - Th TWA i l b n r c a o c e tttra fe lo n s ? ts te ra S n a t b y n p t i c e j 4250 sScrascopy. rs ?*ssmd t e b.) ; .7 ~ 9 ,,B f i iv i? >b <:H >/cc, Th c r c s h s r 4251 sparatori feraanar snri ramtiaan In g m ina, a t h * iorwisan* I s t a r a r , 4252 c riis h s r o p e r a ic r , hBndinqs o p s re to r , w lsenlsr o p s ;-e to r; rim i pecicnr I n Ih 4253 B i l i `i r e s x p o s a d c i h i < h *r t lw n 5 n h s r s >5 lu i.o ii'e c , U s in e e le c t r o n 4254 a l e ro s c o p y , th TMA s b a s to * ? ih e r c n c M t t i o n s ( a l l ie n efebi M aro fo te nd 42$ i o c * h $ - ( S . .i f S t a r c / s e T he lo v **fe l*s o fe o rs a lz o c o m p ila c i py.'o .is n a ta on 4.S50 f i t o a r 'c o n e a n t r a t io n s f c r i h i p in o t , , ThSs c w p l U U M i s p re s u n te s i i n 4257 T a li ! * 8W -3. In Ih sansa s tu d y ,, a n a iy s is 8>y e le c t r o n w l e ro s copi* a i t o (2 5 3 r e a a ia d feht 3 8 -4 5 * a i tim a l r ito r n a r i i t e r s o ra n tito p is y ii t t s , 1 2 -1 * a re (2 5 9 i r n s n l i U t w l l h th r a s i n o i fe d e n ti f i s t i . H o f r a * i l i c e con c e n t 'e t Sons 1 1 *0 f i w ( i n t h # s a a * p l a n i ras * * r y Set-:, t h u h i d i s s i ned c o n c e n t r a i 5 on a l 4253 O .'J i B j / c i : iaa Itis i 1 * lo s e r tim o th a p*>rml s e l l i l e TS& c o n e s n t r s t o n n i O .iy i 4 5 *2 n /c u r > c w e 4 f top i l i i H i l JJ238, r ii ste si** h y a o w td y u t a i sS 3 3 o n 4343 Vsrsm sit t a l e a l so s n a ip s e d sampRS f o r a s b a s lo s e n rt ow i" 2 c a n t in i. , Usine; 4205 a t s s t x o n m i c ro s c o p y u n ii s fe e p -s c s rm tn e - 2 - r a y >f i r c c t l o o e n s ly s t s , th o WCD 001165 1211 < c 4 5 f t 4 4 4 i ALC M ilS I Dl/AI- J In v e s tig a to rs found no astw sLns f ille r s lo th e sam ples. H f in e n p e rce n t o f 4267 th e h u lk sample a n a ly z e d m s fo m a t o nave had tr a c e amounts o f |u . ir t z . 127 WCD 001166 4H3 m i .; H i f i t DttAf-r TABU: IW-J IS 8 i| 2 3 V g S I vT. <-%e * '*? ^ftj r- n*c.-c o o tfj 3 23 .n r ** <-0 jti 2'S<5. Xai sJJ ' re LU e-* 2H -1 Si ;| t uCo } ? P C *** * r* i > f,> jjm w </. ^ } -j --" iC "*? i --a : T?' O f! 'C s sii V331 i{f*** ^V5 V'? r5 c*> a ebw ao `vP< *%f.\O 3 a? ti V 'S*31 C'**SsI*tSif"M* ^ ; is r v . 5 3 .JZU` O $ 2Ltia'Cc*. ( ( $ C 6 fi 0.1 * ng *>** ff i o:*)- i!0 A i i> ;>. O --V S5 ^ t> t> .'J. inHf vr#*> f*\f rV* ' Ps? **;aSc^: V 3l- L' Cl u !.,O /:=-r:i.>^w k. fe t> r ( V c j .j `Z cr ^ y j e. T W . 9 rt ^*W S S X i& ,wJ wf*.tef. **i/ *' sAJ?>lS5tf1uf5-$i<5S>JCC-8fiO--V1Q!na9p & P jg f "P"5 ,J-- cJ *. U.0 `S5 bQ %' ! o , f; t* *i } i; c ! w'c*;1 fe*<WSC5< fcu^ '& va c*> S> wss - M! .' t.. TM-}1*5S ,)iPi 9?p Tf* # *j' * WCD 001167 237 c o n c e n t r a t io n ra n n e ri f r o t i, A t o 2 . 9 * c a / c t i m. fh e nit 1 1t t r I t j h t a n d h : I a u ; H t u r UttAfT Kor r e c e n tly , r e s p i r a t i l e d nst c o n c e n tra tio n s h a w * t> e n u s e d t 4* ic z? 0 *1xo u c 3 u fl60 JVSV) <Q 0 & 30 .9 0 0* 0 <J 0l"it u JS <s m,-n f--a *J 0ifa. u 9 4 4--* <a 7 <1 3 s C. 47 2 1 0 4* 2 *2 1 fj kmg --~0~ fa M 4 0 0f0a) o 1 y * <30 c5 > M40 2 1 0 9 4 0k. Q 0 0 se 2 3 a c s 6Vflipi C 2 4 V0 4 4a 9 3 0 3 K 3 c X*.* Z <0 0 <9 "em 3 3 0 <3 3u 3D --4 3 4ti 1 3 3 mm. *Jfa. C 95 X 0 3 u9S C 0 smm*ts 3 0 mn Gl 0faa. 0 2 tOm 0a TTl iff C f4l a V c fai 0 5 --Ufi w Vc w a c w C9.* cy uc fa. > uC 0 * j a -> u *> IS c a w " uo o S. c A| o c Cc "3 <A >fl m 03. w U3t S C fCl D c w ca <- V ue u '/I Vu* ICn --C fa TS ffZt * Pcfi w o B C % <c V wA aa r - fi A j M> c tn tJ c A.i c fa. 3 > u N c * e ft UCT nl c fa* 0 fa* ee A5 8e O 1J; "3 c Qa> "3 rW wVI u O a 1 25 C A *8 A. cC a * ffaad* u H f*a; 4w; 4 c rc C3 C i '*it*i a ua<" 10 c 3. c a M j V fa j a c u. c M VI M fl VI fa. J e VI C& Cu a SeI c or VI fa. c V a 9 w VI M fc>j to a Si ~ fa) a V<aI> a a C 03 r 3w g e 5 la Cft-1 >i. s s CO c <w c 8 c VI fa. J cr & 3 VI V u c j * s V! O ft* ca tJ IV 0 4cK V. fa) a PM oi V u fi fIa< 6n u e* 5 r ac > fai s *1 o C c 4 4 4U4 Cu c 0fai O *3 V. > < ^W40 fai sa e <0a Al fi fai N * A J <e u w> TJ TJ C<C M > iVSI ,, u u *0 fcai. fGi. fi u N Oe* > A< O1 O rsi a TCJ 0 U Cl VI Ari C M* a c M fi j a 9 0a ----a* u c fa * fa* e E Vw) mMm 4J --Cl d a Sa CHJ 9 l/l fa. C S u ko 44 u<y Ci a r Tl Cfa>i C t. c Q j HJ U Cu c u0 f0a1 a* s s c4 _4 --* 4 2 TJ e c e *- > u E W cc c PSs 3 4 u wa3i 'Cc J M *o 0uC 55 trt x> W3 T! +>a V3 0 e J4U9W5 e a vai fa. uV C < u d4 wn<rf s rr> S uc c sc04 ScU tn4 3 T? Tec>m ur >s -- O C> a Oa rw U %O a CT Vu. 0u U a U) a X3u i %* U a 3 C e AJ r s 35 fa. 1 m C s aa 0 u k* fa* A n s cCT (j u u a la C fl M --5 * C C4 4 3 w 3 UW U *fS* Ht>1J C0C U ruu. 2A* -* u cuc 3 T? m49 T VJ ffal. 5 a 4c w fl u1 <_ an $> <J u n -M ---- * M* w fca-. V At fa) U S3 c 4 U O.. . *3 *C1 s fa. m U fai f i CT a Cc Ul SJ A S "B fOaC C -4 5M Wffal. fai C wC 3 J COfai A <S* r-l Aj *4* Asri <5 AJ ' (* A| C 3-. AjJ O *AMl f>r An3 Aft 'S' Al A| A| Aft Al Ai % <e S Afl u rAyl SA3 <3 M fAill A l A'9*l A43S. f'fl ArA*^)i r fi*l A| e* JCfTl Afl Asrl I2 H WCD 001168 <*343 A* f i l a r i o l e o r a s s | e y s (a u n ti a l i h o t h e r m i n a r a i s C e; i (tS C V c t-4( j <a .'j <fl w 5< S 9 G> U ta <** "s cW *v` in C i. !< L 3,Q .' ho K eta w mm cyO, (>j C 3 m '3 U VI y j %C 4* If u C -m1 c U VU 3le c* 4&2 ta s LJ Ift Ur c <v* mm l ta C Ucc VI U 42<ft V"g crOi <3 r w u0 c } * *> in r *i % T C O lj ve U 3cri *ta Sa ca >3 0U C y<-i m rri <W h / J .ri C ,v* C i U 0c J t 0U JS S i o f f IA c <a* O n *-.b ? -P *m 403 * *r-* 3 tz> U ~ ~ eJ II. a 22 ta 8 w 21O S i <0e > X 0 O <Us Ac*i V tCari w '<h<1* *> c (U -- : vS ># f** 'T T * "9 -1 c ri 0 ta C 3 ?5U T 3 * C ts CO 4*4 42 cri C C +* Sac JFc. fb c O t aj .* G C 0 ata b C J 3 f '<5 QIV ta w m ; ta r 5 Q -5ta ta e CV ta !ri 13 ta O c i <> OJ !S a *0 5 aJ? Qu ta ri a G j , J C oC R ari U ma 3 C U w % n SS JU ta C c O ai 0 U Ci w ta c ari ta * j C , ta U V* 11 n-C '5 ^3 .1 *5a* fr C ta C <n -- OC U O U a (3 i w GS VP ta K C X 3ffi S U " U Ca C %, 04$ 0U gm a ; U o evi C :* CO Vi w ' V: ta s JO . ? aq &cw N O U s C Ift 9 <) at c cH U tw G <s ta t** <3O ai yn V j (4<Ll s . cN F Ew .< ta G ifl a i U V s ta JH'a ** e . 0 13 BSle .r c ar.'.l CL < ta V. R "J e> aia *> V Q i? SK f l a : Cf) C 3a e . sca 4U t r* fS g ir v /* 'U c jC 6U a * 35Vta ta C ta JS te S i O > *'ta ta tft km ta 0 1 n-V 5 mae *t ' 1 0tf tfl C ; ta i X u r * aa* rn ? C IA <*o G) 0 <si N o a WU r V 3 .-w --a -ri tf < S Cri ta 5an: J r\ 5 W i .c G Ai fc-J S ` *z *8*w t c O V s i e CC c* ari C -- 1 (3r * S G j: *- rr) s; rm Vi 5c.c se r> ta : j r~ V h k ta c l!i * ta hs- 4 if 1 0 n Sfc a G a- J fti *< " (ri } ari CO la O *ir W bH* C fiiW V C ta -'e IA G ri s t- e C sc a-tt P? .ir ta V O * 9 tir -% >9 cc a V O n 4*> f,' y trt V , H 1a2gc c V .0% s. r 'f c ? C ta C* C O je S i aC n * a u ci S: t H t J f -iri c a 13 2f l V Si ta to ? J 0 Ata ta tt ia w n < C $ <&J Si iS CW 0 3t S U a . .WJ C s S s5 |Q ir i m u C$" n 3U r MmCO U a-i 2 s> M mCmtCi><tau O* J $0 U*1 Sta9 Of 6 U sl"j O jtga> f? X0 wcg aa.;i ,> >f a* m1 yPoB5 7^ s ta VP W j 0 U a>.* ta 9a r> C cri 3 *0 Si ; O A 5f3l *> S Cri ru OcIM N** U S? cV ji Si> f t ta W i Q ta 0 0S S ta H Cri J 0 S i -= N B> lO O f - WO 1 ?2 fifilS t tjrt O a IQ N SQ fM M tv *9 V '-*7 AT * * S ' V 4 2 3 /e u r*coBsashde<S tty MiU'-sl I ? 3 i . Flxs s t s jily h v B o tn d y s i | ( ; | 3 J a n 4SSS V s ra o n l t e l e e s o n n fily s il s a lta i * f o r a s b e s to s a n tiq u a r i s o n t* Usine; *2 a i s e t ron itra a a o p y and s le ii-s c n n S n r X -ray ts i fr a c tio n a n a ly s is , tha WCD 001169 i' al i ; i-i h i Dirti-i In v e s ti o d ia r s found no Asbestos filte r s in the s im p le s , H fte e n p e rce n t o f 4267 th e iH ilk sam ple a n a ly z e d m s fo m o to neve had tr a c e am ounts o f - |iia r tz . iZ U 575 43J6 I a u : H Il'iT tUIAf-f TABU: I V - I SUDKAlnr ( i f H !S f( iC f i l i t i ; RXWtSUnE MCASWSKSEMfS AT A N IK I AHO I L I . INR PLAUT IM EM W K * 428.3 4 383 4385 366 Job o r O p e ra tio n 'an H lif t r Con cn t r a t Io n ( M b a r >5 ( n lm / r c l V it* ?r< 2 1973 {97.4 1975 iiia S M 6975 H ' <8W st* 4JK9 r i i l Sftc t ! t 1 3 2-3 429E f lM l! * Lsw I I a; SC 1 2 - 430 T re Sue m t to a lsi r 33 6S .j. 3 ft H 4292 ? r i a r y Crc:s5.n(i 260 2 i b V 2 0 90 2b 4 293 ilo : S'i fi.3(Sop J O 1.1 ? 50 2 42V3 a m ?v, S a io o ria rv C ruahiw ? 42? Shsolai' GrncSr. r 4396 'is re iin g s O rlfu tn ? 42Vf- S c o lio r 4300 p * i u * iim 438! B iilS lo a ("Ir,y 43C2 L e e d lo r la ts es 33 :o 1 i> h 54 >3 0 - 5 53 57 ... - H SO - S5 15 - B 15 - - * -- 5 1 li 14 B 14 bM 4 2- 3 ** 4304 M ther 4385 SJ S5*' S lit 4306 Ke! m enane# ilC , . 43tas i-is.ts celei2iti irx 431 Adapt i'-J Tro I 3! 3 - -9 - 2- 14 - 2-*> 3B r sp o rt# uwcRjit fte rs t h i m i i i r.o'.wc: <3384 i a l c H W f Dm a f f fc x p o s u ra t o t e l e lis t <k> n o t l i m i t t o th e m in e r s a n d m i l i a r s o n ly ,, 5335 antytears iwwficsi In v o r j: t h a t use t a l c !n t h e p ro c e s s a r c a ls o s x p u s e d t o '5316 t ,, l e d u s t . n 1972, ttto S il l8 3 ..'l c o n d u c to d a t e l e d u s t I n d u s t r i e ! h y g ta n e 4358 s i i v a y on a r u b b e r 8xi p r o d u c t io n f a c i l i t y . B ecause t a l c v e s lin in g used 43S*3 in a c t r o lo s s m anner a n d In an am ount I n e s c e s s o f t h a t n a e d f o r 4320 lu o r t c s lio n e n d bacftiise o f p o o r v o n t ila t lo n e n d housed sap In r 0 r a th e r h i rh 3320 d i . i t con c g n i r a t Sons wer fo id , The r e s p t r a h lo d u s t con con t r e t lo w s >:ar 4 3 2 2 2 . 5 - 7 . IS c / c u m le w e ra c a 4 .B n u /c u ml f o r th e 0 2 tr u < te r s c 5 , 3 a n d 45* I legists 4223 a r o r iw c tm l can t s a r s , a n d 0 . 9 a n d 1 .2 m o /cu m f o r tw o c u t t a fS o The 4324 Kevarge t o t e ! d u s t c o n c e n tra tio n ranged ir o n 5 .2 rarj/cu m fo r th a d u s to r In 4325 th e ta lk in g b u ild in g to 141,4 evj/cu m f o r th e vu 'e e n l. *e rs . In a d d itio n , 5326 f l o o r o n c a n ira S J o n s * d e te r m in e d w it h p h a se c o n t r a s t o p t i c a l m icroscope*. 4327 ro u g e d f r c ia 4 . 9 t o 9 ,2 f i b e r s -"5 l u l e / r c , s e c e p t ! f l b e r / c c f o r th e 4327 p a c k e r. A n a ly s is o f th a lr h o r n a d u s t / ils o re v e a le d th a t th * d u s t c o n ta in e d 4328 2 -J X f r e t s i l l e r , . S u b s e g u e n tly ,, th e p l a n t s u b s lt u t a d some o f th e t a l c w it h *330 s o t l s t l c ': p l a s t i c s h e e ts and u se d o n ly a minimum a n o in t o f t a l c . Im pro ve d 4 3 2 il th e a s ! s t i n g v e n t i l a t i o n a n d a d ite d net,* s y s t6 ffis 0 a n d used s vacuum c lo a n a r *1321 fo r f l n o r c lo a n I n c t o Im p ro ve w o rk e n v ir o n m e n t. A r e s u rv e y I I 331 5532 c o u s i s t t n r o f a u a l i - t l i r o m i r i in s p e c t io n a n d c o l l e c t i o n o f f o u r p e r s o n a l 4333 sam ples In IV /J p ro v e d th a t th e m o d if ic a t io n as a f f e c t i v e . The r e s p ir a b le 1334 1s t c o n c e n t r a t io n s fo u n d th e n e re 2 . 2 te g /c u m f o r th e e x t r u d e r w it h th 4335 nea v u n t lla llo n system , 4 ,2 i)2cu m o lt h th e Im proved v e n t ila t io n system , 4336 1 .9 o g fe u a f o r th e p e c k e r I I n th e same room as v u l can I t e r s ) , aetd 3 . 0 e c / cu 4237 m i . j f th e le h o ro r o p a rs& ln g th e vacuum c le a n e r. WCD 001172 I II S t a* ul . V? *1 n 2* V m 3 JS sr m>7 fifi P u ii C o> G k : *--1 >3 Ss t? K e * C u *-< C vr TP II? i* f* W TP 'i? M* ftl g r. M w * O' f *) fe 4? ;? c * Vf' 1 `T M -%S* 0 - e o CP 0 c-.* ;a *** S r.'.p * 5 "a 'w.i SJ Xi g A ?3 C s U jj te '5 J? ftt <;W O* *; T* Ai fc ? UC S *-*< til y 0 ,* i. i-> n TB* Lo S tt. g > M. * C S a MJ <V* a; il 8 U g ?-> g !s> fa J V <3 d (li 3 XI }rf tr ? '! 3 ri 1L# If} * ft ? *) ?3 'jo r*> m *m o s w G fi 'a Gu rrt is b 3 l 5 \ i s * wU --i a te s trf f t C te ** i2 <=-! sa ,*.* s i &* w " fm i' llf 5* V* ws &> J r'K W C fl? + { Ml S? * te A* ni T* ir* r * <? e > J"' Un C fe &> rf .*?. G J (* ifi ci sa tu $ ij c j- p.' CM) V #* a JT *e T' N* S <* 0 s* f* * O f, f or i M I S* >3 'f 1 WCD 001173 '4311 JAIL- I - I U '. UlfAl-' J V. MURK I'HACTICfcS ti h i <h In c id e n c e o f I s l e p n e tia o c o n ln s I s i 5H, / , 3 4 , 3 5 ! ones lu n q 427? e e n c a r i o t 06 3 ! he) aeon r e p o r t e d Jo t i t l e w o rk e rs p r i o r t o t n i t l t u t t a o o f 4379 at d r I 11 to o t e c h n iq u e s I n the. n in e s a n d o f f e c t l p ro c e s s an c l os u r e nd 4330 s n h iie s t v s n t l l o t i o n system s Ah th o M i l l s end end u s e r p la n t s . D ust la v a is 43113 i n th e s a p la n t s f r e q u e n t ly f a r e x c e e d e d ?l) ra p p e f, fcho c u r r e n t b 'a sfcra l l i e i t 43B2 fo r n c n flh ro u s t a lc . R r s s e n tly , because o f e f f e c tiv e e n n a n e o rln c c o n tr o ls 4334 in s t a lle d In most t a l c workpSaces and e d u c a tio n o f em ployes o f p ro p e r 42115 p ro c e d u r e s f o r h a n d lln c o f t a l c a n d r o o d stork p r a c t i c e s , e a p lo y e a e jtp o s u ra 397 t o fh t e l e d u s t l e v e ls has tean InlieS sad. 2.91.* K o r k a r s # e x p o s u re t o t a l c may o c c u r Sn t h r e e p la c e s ! I n t h * ln a s s i n 43PG t h i t a lllir a c p l a n t s , a n d i n e n d -u s e r f a c i l i t i e s , Tha n a t u r s o? a x p o s u ra 4391 v a r ie s c c o r d ln r t o h e re th e e x p o s u re o c c u r s , in th e m in e s , d u s t >i3i? p a r t i c l e s a ? * y e n e r a l l y c o a r s s r t lia n I n th e o t h e r tw o p la c e s . Sn th e <252 c i l l t n i p le n tS o d u s t p a r t ic le s msy ra n ) fr o o v ry coarse to respS rnftS s 4333 s S ia dep end! n c on th e p o in t o f e m is s io n In th e p ro c e s s . A t th e e n d -u s e r 4294 f a c i l i t i e s , o n ly fn a p a r tic le s e re e xp e cte d . In a d d itio n to these 4395 a p p a re n t d if f o r a n c e s In e x p o s u re , .cork p ro c e d u re s a re a ls o d if f e r e n t ! 4 290 tS ie r o fo r , p r o t e c t In c w o rS e rs fro m o v e re x p o s u re t o t a l c , d i f f e r e n t w ork 0297 p r a c t ic e s *cay ha r e q u ir e d t o cope w it h th e d i f f r a n t s it u a t io n s , , 4400 i n th e m ln ln tj p r o c e s s , th e e m p lo y e r s h o u ld a d h e re So th e s a f e t y e n d 4401 f f ijn ln p ro c e d u r a s in c * r iv o u le t io n s as r :p iS r s d h y KSJfA, l i r e l ' y - a ln ln q i 32 WCD 001174 m e H w sr uhafi p e r s o n n e l In p r o c e s s e s s u c h o s w e t 'I J L i n e , b l a s t I n e , m a d r i n e muck I n o a n d 9403 tap irs s h o u ld be r e q u ir e d t o hews p r o p ' p r o is c iS v e c iio c h in c a n ti 4494 c u ipsisr.tc s in e * p ro ce s s trio s ira 2s im p o s s ib le , 1 r t 5 n o p e r a t i obs 4405 *wc5t as io ia s tls a ls iin fj os c h in o , an e in s o s p ite re ~ ic K ti.rc ii*d c a b in '.ay ha 4435 provided fo r ih peretore 4409 Sii ih * a U i S s j p t m U ( e r o s h th r, ir. < >,.-. r, dry in o , le s s i fy in t 4409 e n d s t a c k in g r * 3wraf*v in v o lv e d . & process flo w 4 4 1 0 sta print I * shown hwie Ok R tc n tm t I C rushing l Oiyin I Gfmitmg * Classi Icanon * S ri atnm ivLicI-r-b ` Vulii I Shipping I vj!r.toy*.a Flotation Cuiiumiiiies 1 Onv'lonng L _ *1----- --- - D y m y fumi. V-l TYPICAL MILLING flOW DIAGRAM I 14 WCD 001175 44 85 i * t c H n : ; r (m m f t i t iic s bssn o b s e rv a n t t h a t m ost o f t h s u ro c a s s o q u tp m e n t I n v o lv e d i n 4410 m i l l U i p la n ts Is t o t a lly e n c lo s e d and o p e ra te d under n a e a llB p ra ssu r 4412 i l O d l , Thus 0 t a l e d u s t may hp d i s p e r w d i n t o th s w o rk p la c e e i t r a n s f e r H iU p o in ts and from o p e n in g s o r c ra c k s r e s u lt in g from f a ilu r e off th e p ro c e s s 4499 e q u ip m e n t. I t Is ir p n r t a n t , th a n , th a t a i l p ro c e s s equipm ent be a e l n i f l n i d <8420 t n p r o p e r u o r k ln g o r d e r a n <1 c h e c k e d r o u t i n e l y f o r d e f e c t s . I f d e f e c t s a re 4422 fount?, p ro p e r ly p ro t c t < l p e rs o n n e l ( w ith p r o te c tiv e c lo th in g end 4424 r s p ire lo r y e q u ip m e n t} s h o u ld p ro m p tly r e p a ir th e e q u ip m e n t. Any s p i l l 4425 r e s u lt in g fro m e quipm ant f a i l u r e o r r u p tu r a o f ba-js s h o u ld be p ro E q jtiy 4420 r . moved t o p r e v e n t 16. fro m b e in g d is p e r s e d I n t o th e u o rk r o o o a l t r . 442B Because o f it s d lv rs p h y s ic a l p ro p e r tie s , t a ic hes v a rio u s P n c d s trlc l 4429 a p p l i c a t i o n s 7 9 . F o r g s a a p le , c o s a a t ie tra c ts t a l c 9s u s e d ffe r th e 4430 p ro d u c tio n o f U l c i s baby p o i'd e r and as ta b le t f i l l e r In p h a riK C tiiU c a i 4435 p r o c titis ,, a n d th a I n d u s t r ia l g ra d e t a l c I s used Jn p a in t , c e ra m ic s , p a p a r, 433 and ribh,*r as f i l l e r , I n a r t t n r r v d ie n t s , o r s u r fa c in g a c e n ts . D epondtnc on 4434 th e amount and th e manner In h ic h t a lc I s used In a p a r t ic u la r p ro c e s s , 4435 th e anposurs! c o n c e n tra tio n s owy v a ry s e v e ra l o rd e rs o f m agnitude (0 9 1 ,. 4430 E n tln a e rln c c o n tro ls such as p ro cess e n c lo s u re and exhunsi v e n tila tio n 44 37 s h o u ld h j u s e d t o c o n t r o l t a l c c o n c e n t r a t io n s in o o rk ro o m a i r . P r o t e c t iv e 4430 c lo th in g and r e s p ir a to r s sh o u ld he used In cleanup o p e ra tio n s , 447 a a ln te n a n a ca , r e p a ir , o r emergency s itu a tio n s . 4441 As a fu n d a m e n ta l o h . le c ilv e I n p r o t e c t In c e m p lo y e e s ' s a f e t y a n d h s a l t h , 4442 th e e m p lo y e r s h o o ' d a a t n t u ln a c le a n w o r k p la c e t o m in i ml e d u s t e x p o s u re . 4443 la p ra vsh i dust accum ulation In tho orhplace, tho flo o rs and e x te rio rs o f WCD 001176 I 35 i f,LC M HS I fWfA IT p ro c ts s e q iflp m e n i s h o u ld tie fr e q u e n t ly c le a n e d a t h a vaccaia c !e .in ln r `V'vfi* xne worK c lo t h e s * l- o r |ir:nr,K5 h y tJ s n e / h; so?5s vjorc d o h o 3 i n t s t r e e t *,`v7> c u t h ^ s Shou3d ha t^ p t j n s ftp flr fit lo c fe a rs I f c o m p r^ s s ^ d s i r I s if$ ^ d to t 4 7 j t r ju a isi os f i h a wort d o i l } fit Sfreni ri fr (ionia o n ly 3ns i cia ar\ ,ch a tis t c a zz v0>) SI V te S n w" .. el 59 JC1 AS jP $. mg 2 4'jr VI A(SG*3f4Sl 1 ifl s jS SftIj --0 fVu C wCVSJ M G > virit 3J/ r0. *0 "5 Cf Oc U tj o ** `*T rt Cec 04 JJ * G .t?* C c U 2 `Ci a1; A 19A c<y9 O tVc0ei *C0l Ket s. D "S vC O U (3 U3 rA* A0 --c -cT * ft* VJ UV sSK at} CU<* AdKe* > _kf>i fe. U &CI VOS 0 I8n C aw. esr0r "C * w s U C0m 75 ; v2t V' Si Ull Oa* c#; ft <Ce*i C>TS *W* wS<ss 0 31 VS0we nd G *SJ Ce1 Ot-, a. >>> b(Ol0uP.. fi. 3 T; (M 0Pi w ov n5rUfj a nfei C $5 w c 13 O c* c6J ml 3 c m > a a L. aaei a* $ V VtiI tVGJ. 3 3 A AOC mU* O3 GL Me OLCl a? U m c0 Kcl DO0 c c c* Id* a& mC 5uI 0C ! V3 C 33 fc 0 *G0 VJ Cca* C<w$H0 c&m* .V AU ra w ft) 03 c C /V:I Vh A0l tNJ &V) cfs U i3 V) Acl +P>J'} U <a .51 w0 Cw 0 A* KeU o ACLe* O rci cG Ci u G 0cU C C w Bc i ) <0 g Cft w C U 8. mm c U Ua c51? !n 6Okea. (r> tu?n) PO UV tOaa- cGC S w C il # <s9 AZi3li CAdeM3l 'S f 'JiO* Sm Xi s O t> ) C a s 1 1 m X H a A04 V*FZ mcc<E V. Cte. 4* 1>S?). mO 0(c5 ?isel. tun i0J oOJ U1r* V$) VC wfail 0s n. 0 zG TAGm>> mwl *3 A3 r0 k. 0 cnm C m3 eLLs. V) U G mv U3 t? ` C 3c .2n 'S Ug ta tW> 0 ac. GUK 9 "eO 3S s 3 G <W CmmJ B O U* OQ UG Cme "d gGa0 cM 7a3 J 6 13 1 >9 m -1 iiadn AAMl UJ UG c 3! MVm T2bP4 /0Z C Om 'tn CS CSV C -tUl) 3* Ai !*..0 -Cg U e&s> < fTisi i O3ft V) ol s0 nNJ a N. s% $ h A0 U1 a p(9i (* c Lf.> M c (3fl U U 0aw G WaG r. *0* >w 0 mt3 AT tf2l ta sO C Le A>1AM03/l A0* L. *G1 'tCa TC0 G fs, Km* C Al C1 *-1 UUG) C V* Sa SJ O Le SU Cil c mm f th SJ OC' 'AtC!* 6!- i3 O <Ca UVM e U Tu3 c ?0 AiO? t0> g ui* ic* V -? <'wQ?l e^3 Am3l CcU c Cm C c m3m 2 Oc COC L2 U 9s m*m MSi aLsUe V! <*OJCa-iJ We. Om*i s J 01 vt T W 3 hm e iv G o o(n Am0SmJl XU03; JO A tn U3tn Aw C 2e C G O 2* <?> mUA m m0 CC J sa 3* rl mjt:0 VO tn O3, G r aV3I T2 * crValI S0J a Ae* >5 L*e 3, H6 KAUG)lt 3 C " SA Gtn <ifPJ '# 90 C m il (A *CZ Al taees sC Aw XU Cc 0. s> C V*a m3* C S3 GGO vt Cm&eei S-/* *7 * 0* O 5"%* rIifi *? D tfl 03 *r*Pr ' 3> *ynn* ir "t%oV0S> P 5TJT? SmSAi- *G? er >"J0P* ru cOs* V<7 a g v'3O e #O a '*O5Vr ;<VT WCD 001177 JofVcttlt <c8 3Oft _wKVff2tJtI 2<~* ----* f183At* h*t. aGto ----<Jc rs/ *--GX0cd- fwttoi 3 wG Gefl V02* \*V5. V Cuc ft --X`2V2Zd --xCatQ* -> gcfl *2 --fOat at2V53* ttrVooJ*I*i u C K6C0> <O 3swV43O1I O%fVt--*ot fl '> c "3 c0 0 J wCtto. kse f_j --3rc4>y)C tO0*>D J?o<<4ZSnA?> <c** ru>c0<3J5 tCIrftf fVl C ~<uttoeo* Vct eG? V3;I tfoJt?1i fu.i tueM>voi'j ttcVooM0aI f0t c0 U0sKl *0IJ --fue>rteJ aj *cf3i 9etso f(3V2AtI >3 Je3 cAw*KJ" VVCOSMo") todi \TT ifASn5lJ tIoAC0 KG0u.Ci)i J10*Z*2 3 --A23 -tU0OUoCi jSOG<StoJ' Ou K3CAm id ttVh0ooO>)i iE *t0*i3 VVC. T9U3Jc) 9V*, -t3oi w Xt0IHoT C0 *tttaooot *C3 tit0atL0otlAoo0ii. 2G?1 >t0woSit 3tttsooVro0>d',)I *w tc <i<nua 3 --1TttCCc1>oo*4*)i KVV4e)I1iQ JZJ *l VV0t1II. c fc VI u ttocbcoet>o; tom4Cc0hCC1oI. ivi TCi <>0 0 i3ton. n 0c 0 w mTmtrcO0>ii *VVOClST.Ila t0o* tlo*co** 0c ^3k0f.a.l a`3ApC- AV5 ue00A 2 tAtGC3uoC!Uu4cofl5*il' tTV3ojIl -tutoots T(c0i t-KC>ucuomm $V c0 Ow 4kO> V y0 w u<sA0s8 J*>C 30w0-0g 0iSto t<03cA <to* g fi JuST) trO3oA TA3o0aJV:r tuXo. toS SatAo hUOCiSi c w0(VAa81I <0a --eto -t5toGoJ3d XCJ tJaei3onZ. V3Ct?* 6a --C0c e-tdo s <y <2tco u<*01 JT tG0utCos VhUc0.ii S c36 *0Vq *00c* iCall C0 A4<W0C0adGi <eg c m23uy} t0oCJ*i WUSajai tU<*uo&a0j8* *0* S3 20O aa sG acuu300tor ta3o0VI UaSUXs0JBtAJo* ttJofGoJlZOZJi VLVIa TA3; JtoZi tOo. tTbCoC5Ja Lc<a3 JtXSoZSi JWZa JZ G c6UG$ bGc.i r0j yC "GOK3G VG0aId tUc<<C0(oUJJ) ttooi SJ wSU t0oi Lc2ICKGOAa. tueSo?i L* OC & twaoi, --L3SJAaS*i fjt CG mtCUVQoii aT C atVoaCIli &c wL3a a-t--6tooi --tLCfsoSCJttaoi TTkeGS016*3>J1 tto2e a<oA ft tQoi JtoSJfli TtCLogai U>Gf f9f WJ 3 c tLIVoCai a ja --"2s k>0>1 0B,. SAA3 JVf"St SA *cf,* a jcuGc toi 3$ TMS0a!i X(S4 Ga3: U60 U0 e c T0J ff0Ct f2C0t 0rj. 2atfS0f0OaGAfttj <&fCt -f3CCt Oa *Sat'0taAo S3CuA ft. 0 i m--taj%fo2me*tji* gto tCoo* GC a--QL00tJJaoa tIUo0Ai *-- Jc4f"TJJt) Gvl>0af>l. t0o* CO C0 ri fl fCt .eto C t*oJi hfat Cs8a w0 tcW0oi c fftt ft Gc* ft mrsi tco) f0t 50a0 X G&f2t t<fotv t3oi i .cfj VsXI GG SGA VI 3G c t*Vff0oScttlnoi 220 S0*XCA a2 2i 3-- -->a Ca aS30A, SA tfCoStn G fl OAu(A fl A0X0S yto 0 t0oi <0 VA0UV fS9afAlt cc cG0aAi 'S G 20 A wfk u*p* rO'S*t**. ?-- IP P*'sJy* t<S*o3?' C *c?* f! ayV P *5p 'SOi *_ r^ V a'rS-?* C15?*. g ? r\ G40?* Si t&0*f?l -Ci t> rcT';. O<3>r ft 4P O y sOT*t UC't*f WCD 001178 4506 s a i : n i i ' . r iMiAt-r An o r a t i n e e :ic a tto n p r o c r j' s h o u ld ho e s t a h l g sh e d I n a llo w an 450? o p p o r tin 11 y f o r em ployees t o mnel tilth m anarem ent t o r f iv i eu ss f t y 4508 p ro ce d u re s end new to c l c o la i;! c f in d in g * . Ilo th th e o r ie n ta tio n and 4509 c o n t in u in g e d u c a tio n p ro g ra m s s h o u ld t>? c o n d u c te d h y p e rs o n n e l q u a l i f i e d hy 'i5 i0 e trp a ris rc i o r tra in in e - in o c c u p a tio n a l s a fe ty and h e a lth . WCD 001179 13U *517 (AI.C F lU S I UIMFT wio o i:tfa o M ;M r o f s t a h d a h o sac B t ila ,, . jia , r . . i x e t i o m u a t a n d i f i H 4523 I n 194Ag th e A n s rle a n C o n fe re n c e o f G o v e rn m e n ta l S a c ta s tr la i l ly c la n is is 4524 (2.CG3K1 J 5 J 4 ! e t S ts a lf jh t h e m u s ! o e a tt n q e s t a b l is h e d a, lasslstim a llO K S b is 4525 c o n c e n t r a t io n <MACt f o r t l c o f 2 a p p e f o f a i r es d e te r m ln n d b y stancS isr* 432? I tc tn l f i s l a c o u n t 11351, T its b a s is f o r t h i s recooxBivndstSon ws n o t c iv s n <?52e Mnth' s a e r o r e d e f in e d ss t h r e s h o ld H a l t u e lu s s ( T h W 's l in !9eB b y th e ACGJH 4529 and a H-tf-TSA con c a n t r a t io n o f 20 a p p ef as s d o p ta d f o r ta lc The TL(f ? o r 4530 t e l e r s a s ib e tj tm ch cn ce d u n t i l ! V62 ben e s t i p u l a t i o n ires addad th a t th 20 4521 rippe? TiW a p p lie d o n ly t o th o s e a ir b o r n e t a l c d u s t c o n t a ln in c !% 4532 c r y s te J lin a s i l i c a ! 1361. Any m o ra l d u s t w ith IS s i l i c a c o n te n t sas io 4534 f o l l o w th e t m t r e v is e d s i l i e s TIW The O e s u g s a te ito a a t 453a T b r ^ s h n id u i a L t V* 1ues I ! 3 /1 p u b lis h e d I n <962 in d ic a t e d Kha b a s is S336 f o r th is t e l e 1LV a s e num ber o f c l i n i c a l s t u d ie s , t h a t a s s o c la d t a l e 4533 s ip o s iir a s w i t h p n e u m o c o n io s is I 32 31 t 3 8 , 53 0 , I 3 9 , 140 1 4 1 ,1 4 2 , 4539 AS,, 1436 3 5 06 1 3 1 4 4 ,1 4 5 ! . I n m ost o f th e s e s t u d ie s . I t was r e t u r n jit v d t h a t 454$ th e t a l c d u s t In h a le d c o m ln i? v a r y in o am ounts o f t r e m a lit s c r o th e r 4542 a c c e s s o ry m in e ra ls lio 'e v e r , uorpie and S a lle t t g 1 4 0 1 r e p o r te d th a t 544 K o r io r s * 8 p n * d t o p u re t a l c d i s l a t a e ra e c o n c e n t r a t io n s o f 5 5 -3 0 m ppcf 4545 fo r 10-36 years shoved no e vid e n ce o f p n e ie fto co n lo sls. Schepsrs end O urtan 4546 !4 H ! e n v e lo p e d e v id e n ce on th e cam ples I n t a r p le y between t e le , t r e m o iit 9 4543 snd ju a fts fro m h u non s t u d ie s , a n d e v la ta n c e o f many r e p o r t e d ca se s o i t e l e I J9 WCD 001180 fc h a th e t c o n s tru e d ( 3 7 ' T h S C O !K r \ t c i- a w .i o itA P T p a s -.m o s a n l a t % r 8 *B S 3 n a b a s to s ! . te 5 l. 'C "M -- 0 f) U 3 P-M i "l 1 *5 , a te a >? O * * Al Q y e fi > w i a Sfl SJ a a 5 u O fv K r3 u 31 w t^n o C * t s A l f i fl u g J;, te IM A. 91 u : >9 cU -- uS X i ft U --3 C H* C 1 E O c .< j fr*' J ? 3 0 ai " iti y IO i f p Wn J jg v< X- uw <v w fr X ) J a L. s* 9 te **! (5 O ft t i 4 ,J b> ' teg 1 r - te ; f V fc J ff < * J * i- t te a Vf 2 .S te M te" s* CL V* ' JJ4> 63 C V -j) . C 4P m -J \3 o M l t<*> <? C "O X; *m *o & Va 0 3 n -JI V i e l A . K C tel te MM m * l(N X C -l tn t \ s M* i a o D . te 0 3 ! ta ifl 1.0 sva - v g V. *Q OK * 1) c r . (N J 4S *0 J | cJ oa C 4 V e o St e0 C t > te C ii rt *> t K-J <-* 0 CW a P v i V4 J2 * u 1 S 9 T V I vs .te >. MA N r\ Al <M f r A l f 3! ; V I La te > n i 3 ft- te O >M* M 4J> trt r. Cat 1 < 0 iy f > o (*. fe5 V *a Q ft te (fl te e e u e 3 W Xi e 21 V) <uS C l i r SH VJ C '-SJ c w 0 W3 cJ fl H6e S i IC M V K T, U\ V a: C *> .i <v X 4P 9 f A l k. 0 o i a i * s i t i > VJ o Om* c . O * i$2 H NM $ IL 4>l ' St> < 3 J u fr k . IA fr :.C C k w 5 V I <5 L. &S * rmi V? j T i e C M te <v te * c ; te VI 0 . ? C ^. ai t. M C t & MB 3 ? 0 ft (fl 7 r. U a 3 u 3 Sv r" r -J 9 <C c s *> b * 2 0 ! f=J t e U C ft f t S A l te 6 *,, > V) V? t V U Tm 0 "9 *W3 M i 3K <3 w e <MQ ' 5H i n 43 V 3 io u V i C te ' i X G ; (J V u iC -1 u w O* f t o . *3 C Cv . V) -i o fr ft > *G g ", S V JC V /: ft ' Uf % f t 7* 0 <* 'fl V M j H -I a <4 ' s <oC *:> V i ft in C v) 5 * 3 C VJ : j - t v fr V ? s V! -- --> 1 , ! > IM <* Mm 3 W M s te <"i / c %) i ^ f l i rm X i tfl r.v 4._J A# 0 0 5 te u V e . fr' tert < >S V T *2? 0 , 0 a te 3. e S i 1w M C ,r , 1 'fr? s 94 S 1 U !* te 'l i 5> fl 52 r. s ri , TV, ? e y n ' i t i Q M * 3 V` S k_ 1 > Si e ri t i l a t rr> s*> i- i **) ,c eg T-3 e ri K > M CN n i T5 c 1 .-! o 3 tO te C-3 ( ii *" tfl f t i "teff te *= JC cmI k o O rt-3 1-M3 G T r OO ft mJ te 3 .V j * w o fl o c*J f t tefl te l 5Q ! C Am ft y In <rt SJ <" 3 OT Va > <*4 0 0 HJ C (fl i eC G f t M -l S a] 1 ft BC M K'J 0 ft 5 C-3 te 3 j j <_ # 0 G ht ; ii *" 5 M <> 4M w 18 fl !t jT; ! fl *5J 3 <V9 e O W> . Cj '> K jC Cl D A,1 a : ^2 U te i 4 G " te? s (fl ft tv . 3 *& $ iS / : U ,v ' f.1 C Ai te te VJ < 3 Jt fl \2 V , I u 4* O Vi ik ' # V c <wi >3 i u S t <3 < ft C* /5 te v AC i te r *c r! Ct) O l UC (rt U Sf i > * f : >- t j JC (.j b? ,<5 ' P .m J < * 0 te* C ft C 0 G .c C S R Si i t y V CL W * - H Va te L -M A u JJ o iS & --. io fi tr V * p <flr ** s v. 2? * t 5T S i r *r o =* *> 3 l) T t M 1 S . \ V ft" O 1p < o m 4P `'p O iM I f l ft* P * * ft t t f t Mt P "Sr" <e G* r * fw rf\ "*P O in Y WCD 001181 4 6 1 i a i t e l : a w i t e e s s o e S e t i ' C O r a j t v ''r i o J e s s n c f ! e s t r e n l l ' t a n d e n S l w ^ U U : 3 mT. tel G IS rt- H' -- r <W > -- c-M !-* w 'X v i te# 2 ; fl 3 5 !* -0 f l .i 4-1 W c 'J s .- u <: o * *o e-1 t * /: C 0 5f 4M o flO OJ O **M 5* 4> -# 1 c* c *2 2 e 2TV- i sn c fl *g5 i Lu & %M .> M W& Ca G3 U g U1 % V 0 2-j -al J K < E ij C 40 1, /s* t- 2! 40 V, ^0 <5 c Uz ru - fl5 M U ai | C . r. 2 Si ?' y -X <Jn APQ 9O 0 <rt r* 2 S W y V C ** O AI ai 'S U1 IA = S> f ten GO Vi C G* 3 O il * f tei t "5 ma 4.1) 6 ' --< C OM s e en 2 h> ai uw t3 <f1l CB fl f l 0* nU w. 0c S d C w0 (9 V. U *; G Vv 9 u CJ 3> 53 2 rZ W C O I O s <w` Il O t -o * * 2 c 0 tu -J to a 'S a v* fl C tu J t . c II (t nu Vfct " =8 S to & T **2 *ri B - A J lit W <*> v ti J"*' wO (j \ i A ut W li C V ta m A?*' *- o? --4 <? > *Vj <s md L, O *-> -- Al tUn -- lii O V 0 u S <*J rrt q s* e J ' vmf- h* & ui . J .V* C < ^s wi m 5 Ci 0 Al W trt c) fl V? ! 5 zfl ifl Q 2 S fri <B) la 8 ta 0 1 O t A $C '4 w- S o * A y <d J X, 5* ^2 S c <5 2 i fi S V s d lit *3 C r. -? -2 V c 3 io n JZ O <a r * Coe *> o ta* CU a 0 Ci 0 . 4-J *K U t&t ) A i A> at un 0n c Ow pte Z* B 3 c tfl tA io ri? * (3 Ki 0 te? J W 5 M ( t" ot c0 \J u te jC 0y Cl w 0 fct o, Cl a 5-*/ u K 1> C a>] e i f l US B X' us a 2c < te) e fZi JR J i >te K <*> t u GK w .G e {# *!* U ta# SR r Ci T3 Oe C a* t>t t. G e tr- Bir u * Ci N R 4. O te. <* G* O Si nOjz <4 # 3; e* !-5 G JZ m = VS' VA a? tei A* C* o c-i tet i e 3 9; *i? 5? 3 G K Co -i 2_- tei c; H* lo 4* to'/ 03 a aC Q --J O c>i &a oy U <-? N c 55 -S u aa>> fi to. *B fr-t *w. i f l <it Cv C vO lAf ijt e il , yg K (a ni- C S W- G B 0 1 a * 0 m1 r V C]i 16 ) .0 Ul OT r- --;; t !u m c t ?, < S fl 0 3>1 \a G B i Qw !1 c *X: . t; s frU u B l g ; A tej c tmj * ti --i 0 V C j c c ! c! % O C us 3 -J "a J ;^ G G G i ** ` O C H 4 ' 5 } * c U1 2 isf X O al w w w f. - 3 G fl ta, w.Aui u L. M *tt O r) *8 L* 3 > 'S 0 "G C X `J--U *u JZ <3 fl c C Sc f i G n9 o r cW fl 1? t tel g a` 3* f l S> VI S n a U C* u *n rm a ii r a > u tu t it Jlj te X *t-a Ul E vu U 0 ta* v< t* tGe* V 4 i <4 0. 5 : *--u o ig w i> ai c jE 'm e O r u CJ V J 0 V tel c* i^ Ci1 * tJ 5 H ! - - tn s; 9! 3 f 0 w M. rm, a ** M Tf :! 'Wj wS'ii C <0 1 0 lu / : ci Tw te* Cjt a n 0 1& C 1 A? fl o* (t W;` -y u a g z s te C-4 f L> CUj & C ut La GMC ;y : aC;t * * <S 3t> 1 T3 J fl 4 C-* 0 C* - o i r-*i r o Ci <3 O 4 0Jj1 ut* 2 1 3 V *Y Goa 2 <5 j V' V Mi *)* Ki fl U MZ So A vvj - C2J Vte -- mX 1 CM atei'1i ** ~H .C! [: tel 1i y TS 4s( 2 iE AJ 315i w > A - i1 f* 'teii ^ C* te j H tteelj1 " cJ11 1q 1y L* C; *?!i 9 aS <^/1 > b 'r' i 9 c t' f- <j ri a Ufl su te fl fl WCD 001182 l i b r e t t a t e l e , cui t r m a i l i * in e iu t t o t O tti m e F l u i r DM A F T c i i i s s o f till co s I s * In c lu d it i t b aiE$.nps 9 s? od jrpn)rlx *} ir - i u i3 u MI 0 * A3 U)U *> MCI A* e 2 Ut fea *'* f* $ fe tfl 1 wa fg & te ty Xi A1i i.t o ! 0 Ai ! u i--i e fi? W 4 <5 iJ U f; J5 w `-J e iI .' s J ,c >* *-* HJ u *z ** ; Ul 'fe 0 3* '55 fc V * 3 A? -* e fl fr sfi Oc l* *. 7> 0 i. O *. Hl a* t, V* #9 <C W V) c S Ji? 'y *w r* G tC c 0 (A '3 <3 0 MJ ite * <0 O CL %>. C 7 c a "* w C cd >X O v> *Kfe * *1 C M e *'v g a #; i <w <5 t *> JC O U1 bt <k V --< >:M '01 a 0 5 fi C o iy & #f fe 21 3 e ss A TC c <A 2 V Ci i n tm i - 8 Vi SA <ft O G O 0 B c a w . '3 *-> <** t T vi O U i c s un r:. -tel A" % K : f*i ;rj A SE .0 cw AJ* *? t5 <5 I*D >* lu S* MV 'Iv *> y 1 ft' V? E <0 te* 5 d ) V C- B F o 5 >** IM r fe m t* C iy o (P bttt 21 f u fe Pi i c * V Q *.* WM * V* *5 C ef i* ! t? A V* 5* c> t oc c O <5? 1 rx. 9 Ai <&* > fe 0 ft ?* Al t f. iy 93 >5 * a .c 3 G C U 3 < :p V s rt *# > ** t m ri di ^1 > . V) ffe;* t> 0 c * w) Cea i *N SJ C--fi O i? *i - l.t X y a V &J .S <8 ^il V V vi C fe. i Af, 5^ t 5S w 0 ' J*l j* 3 6j* ff- fe x*> 0 AJ * fei <) w-4 Asi 9b, I*0 '*te >* `3 ipt f. 5> G i & O #J w /C m3 y 4> 'i0 r fU} - S. ri K 9 je r 0*1 9 <3 0 m fe v $* ** 1 (J fe i n; % a $ O U *1 i.ej ai ,0 *sii `3 i ? c *>: *;.* *1 <J tn > m T3 e w .5 *<00* - ?3 f i *' W me ,r-) a; s e *= Si IA * P 5 0,1 H-# i U fe 6*1 r; W s `3 g 2 w Si ti 4' V* ?.. it *0 C ?* y b U X il e*. rxC Sx. erf ' SI 0 a `Il 1 Si 0 i <-* 31 W ' ,c * if <v '3 Lt* G Id a n> f.3 w M. W iy V? U.g; a `ip J 'il A4 1 7>r 0 .fi K CL C rn dl V #V VI & A? $ W N .S fjl >;< J ; 9 S*.*i jg te* il fe * Sii y* 13 f i .'3 `* Ai " --1 Et ts a--1 e j OS S g ts -4 ite c n /: 'w* fj t.; G n ..!-..i C 1 J w ti SM j2 n* R-, id V JS J t1i}l C:? m t Ai 0 0 B K*. f i 'te AS nJ B u *0 O fi r-, SI O 3 O* 9 tfl 0 ( ri & si ln fe 'y Sfew w 0 ^5 aU fi SI feo PJt*e. V0 . < ife un w %0 4;4> t? 3R ta ftii <fi 0* ? ?V fij; CCJi,,i1 jg?; <* w *s?*1 iit V* 'jt-: c* e- 13* xi w %A* s i j M Ci C <U3 fi v> fe fve> fte O *fJi 3* % f-' *35.t:eS *{? 0 A> pa .Vj e 11Sy AK? CO 0 fe oAe 'nxT <j m (fwi JtQe $ -S41 tu KIfe. 0, r. fril 0 c teei t *, S X *C--pr4Ji f<fv:. HJ i `2 V. fi r ? CMMitSefj m m 1 i. i5 WeJ tiv1 tf4l G* Xi U* iT** C*= cf*p 1t; tSei, *w? ta * S; 5! Vvj!. ^*>. >*< iS H&> A* i VMJl; 1SC>i BIi).;;i c c V5 U > i 0 c Mte 0 fnuil 1 cl *3 p* <*> El ri a M w 1 OI e rfe or On O ft*?1 m en n <fe Wfi 'O *) f l fe ? 8 `5* * 0 'S ) "O , 56 p fe tu' <*> if fe* <) c "S* 0 fe 0 fe 9g 'te* `MJS. s*ansj*si 5f o r io Se, S20 IftVftS-t 3natter WCD 001183 ! Al C H Itti!- UHAH! 5 i jr t j ,, u n d e r " A p p a n n ili A, L a r e I 0 r n s 5 n o la d t l w t s p o s iir t o I l fo rm s o f 4649 e s ia sto Si to g e t h e r w ith Ci ja re tt n scnol-.lncj. can in c r e a s e M is tn c ld a n c a <f 4650 broncha tan le e a re n n ra from esd a sto s and o th e r substances o r p ro ce sse s. 16i i The >f 4 n i OS in t s e r t i! S ta n d a rd (P C fr t IV IO .lO O tJ anni ; 9 S 0 . I U 0 ii i?or 4654 w o r k p lc c e x p o s u re t o U l c 1s an t!- h o ;ir T:SA c o n c a n t r a t lo n c i 20 m ppci f o r 4650 a s b e s ti forra t a lc c o n ta in in ^ M es tl.n IX < jis a rtit F or a s b e s ti f o r * ta ie ,, th s 4658 a s b e s to s s t a n d a r d i s iissu ,, t r h lc h i s an H -h o u r TXA c o n c e n t r a t io n o f 2 4659 f i b a r s / c c fa r f i l l e r s r-5 l u i iti 8n ia n th c ;rt a d d i t i o n , h o c o n c o n tr a t i o n o f 4 6 6 ! a s b e s ti f o r o t a i e i s n o t t o succeed !U f i h s r s / c c l o r f ib e r s lo n g e r th a n 5 ?*62 l u l u f o r any p o r lo d o f t i c S e , s c e i l i n g U n t i t i , . h a s t a n d a r d fo tr 5064 n o n a s b o s ifo r n i t e i c i s b a s e d on th e T U ' f o r w o ric p la c e e x p o s u re p ro p o s e d by 405 t lio AC U II! i n 1970,> Tha a s b a s t i f o r a t a l c s ta n d a r d i s b a se d l a r g e l y on sorte r b dona by th e B r i t i s h lic c -.ip c t"o n e 1 lly la n s S o c ie t y f o r a p ro p e s a c i s ta n d a r d 4663 fo r a sb e sto s. <4?; fe a iA fa r ta f n y lr o v e n ta i S ta n d a rd >173 id * p e rm is s ib le Litposuro L im it 477 Host o f the s tu d ie s o f th e h e a lth e f f o c ts o f t a lc on w o rk e rs fo u n d in 4676 " Jie a,vai a b le 11 t a r a t u r e do n u t a d e g u a te ! c h a r a c t e r ! r e t a l c b y s o u rc e , 4079 m in e ra l c o m p o s itio n ! p u r ity o r p a r t ic le s it e . Because t a ic is u s u a lly found 46H Jb o res n ix e d u t lh fre e s i l i c a n il a s lx ts t i form m in e ra ls such as t r e m o lile , 083 e n th o o h y i U ta and c h r y s o t lle . most human and anim ici s im ile s In v o lv e 1684 e x p o s u re t o m lk t u r a i o f th e s e s u b s ta n c e s , th e o m 'r o n a e n . a l d a ta arct Ml WCD 001184 U l i : H IC iT DitAR ' u s iia I ly rn |i> rtft< 'S t o i rit ist ;ts ite L e ritiln n d l>y lm )>ln<er m n th o iis in rees Ani w ats sp st s s i n d I d r a t r a c h u i dos* c i ? e r f e sla s -cort aa (y o A*t J3 a Ua tS. fi ,3 1 cL S "9 * --V w33 * * -- &<S C r K ii<J s E 'S t tu S w CI f<> M c t 1 o,J !0 <M3 a 6 8 o 4tf9 C. fcc ft K? mC f* G/3 G g I AdJ: 3is rVOjj A?ili* *es O>. so'> c C0*4 lGu fKcVl Ufi*l r- o *K0=> fMftl R 3J f*ijrpJ >i; O;e c # 1 A3rf tf ien ssc U at a u r* 0 *4 ; M'E%1 n0U '*> 5$?*a.*. * ut' re: X(ft rf*<Aa> r0t s 0 H 8* C -a' 1-1 fc* Ug --w1 oTVs9l '*0On.p t-i tf WJ ,Q8h0. *V> St>* C, i c, fy1 ,{ C& 0* Si *3M t* Si r-i j 5 'fUCGs. & co <H3' CMrc* R(a"-<il* iWw ft Cft, $besr fi *U5 g it* a e js1 5 a aTl ii : .1? X3 r s y* Gf*3> -1 0 sc.* irt0*;" Vi Vi-.vi 9it c Sa 03G s i0.,, G *0 ft * b 5ir e H t;fwi ai w i VeV-, *Oa il y? tai* JQ Vf-. tft U m? U " (A ecA 4-f*i 8 t.t J st. ai # *i y *t:i i #* VUOMi `msJs rJ i ><K*t 1 & V3ft5 m t* o V5?* uo G. t Gli Ttci? =h*j t*fVuj *0 tti Avt*a wc y CUa (S!f!t 03 GSex W s c u <ou ibu ei i t vV<tT 5 u y;*5 Cy m si uft /* Irv;a* V f t2 <O-:V-A O c rvisl 'C3 a t^*siei '*SS; i. */i 5 3 AoC-.*J> ti 2> ti uXu VS:T-# 3 td <t*fl r-n t dwic.Cst <CeS a'if*t *Al 5^ 'C % 0JO ;r0 E>T. g*f?l 'J k <?> t* O fr*.. *3 A'J c ai tt te <,) tn iiOiVgHaJs Si fft0c.-*>. <5 g- m .wy'>% om i **> -< <- O :a ? * 5? ? &<r --><k G i 2* S o8 ISo" fto<-VB** !*> 'S* '"S' fOtj s <O* fV'Oi"? 5O fQO6ft rei Pif-t :*> r-3 wr *!* rrf*t WCD 001185 a i u .r I . ' m onths 1 6 / ) . I MC HllSf DUaKT '3120 *o rJ :s rs " posed fo r ` 0 years o r lo n g e r to n o n a s tv is ilfo ra te le S72i c o n t a i n i n g 5 .4 5 o r Sess i r n e s t S c a a i a v e r a r e c o n c e n t r a t io n s r r n a i e r th a n 4732 20 snppc? 1 3 .3 o r / c n in I d e v e lo p e d m e n t o te n n e r c p h i c e v id e n c e o f p u l& o n e ry *3723 it t o ir o s is ` 6 6 0 4 0 5 6 7 3 , t a l c o s ts t 6V 1 0 a n i d o c re a s e s i n p u im o n r r y f u n c t io n 4724 m ea su re m e n ts 1 4 0 ,6 7 1 . K o n a s b e s t lfo rra t a l c c o n t a in in g le s s th a n Sx ir s a '720 s i l i c a p r u u ic s d In c re a s e d (nclU rm ce S o f c o n d (4 ,,5 % ), excess p h i 0 0 , {2151;, <8.2? w h e a z in o and c h r o n ic o b s t r u c t i v e Itm ij d is e a s e 112 .6 X 1 a n d tie c rs a s s s in 372 i i n w o rk e rs who tia ra e x p o , d a t c o n c e n t r a t io n s o f 0 , 5 - 3 . 5 5 sxs/cu in f o r 8 . 0 4730 y e a rs 1661. S u b s ta n tia l tic re a s p s in I t W 9 (H7.AX1 c u re a ls o re p o r t i d In 4738 w o rk e rs a x p o s a c t o nonssOres 11 f o r e t e l e a t c o n c o n tr a tic -r s s o f a b o u t 8.91 4732 m g /c u ra f o r 21? o r nor y a a rs , a nd s.moitisd f o r an a v e ra g e o f 1 y e a r s . The 5733 r i s i i o f d e a th fro m n o n a e iig n o n l r e s p i r a t o r y d is a a s o as a ls o a la v e t a d i n 4736 w o rk e rs e x p o s e d f o r an a v a r a r e o f 111 y e a r s t o r t n n a s b o s t if o r n t a l c 4730 c o n ta in in g no Jroa s l i t t a 621. 47311 A n i m ais exposed to nona s b a s ti fo rm t a l c s t an a vo ra g o c o n c e n tr e tio n o f 4 7 3? 200 B p /c ii g o r a t a t o t a l i n t r a t r a c h e a l lose o f 160 me ite v a lo p e d 4 7 4 0 in f la m m a t io n I n th e r o s p l r . i t o r / t r a c t 1 0 7 ,6 6 1, f l l i r o s j s 2 0 7 ,6 6 1 , sHnphysarae 4741 i n tir e lo n g s 0 6 1 , a nd a g ra n u lo m a to n s r e a c t io n i n th e 1ympti n odes 1661 4742 a fte r 12 m onths. 744 A l l r e v ie w e d s t u d ie s on th e m u ta <e n le I l y n r t a r a io r e n i c 11 y o f 4725 n o n a s tie s tl fo r a t a lc demons! ra te d no raulaganl c o r te ra to g e n ic e f f e c ts on 4 4 6 s p e c ie s t e s t e d 1 77, 781. Mo in f o r m a t io n on c a r c i n o r e n S c lt y o i 4747 n a n ach e st 1( o r& L a ic on a n is a ls was fo u n d . W C D 001186 5750 I M C HI li >1 IH/aHt D a ta ors human e x p o s u re t o n o n a s tie s ll fo rm l a i c h a ve shown t h a t 5751 nones b e s t I f o r m t a l c c o n t a i n i n ' le s s t h i n 12 f r o e s i l i c a protiic<3S <S75if y a s p l r w t o r y e f f e c t s a m i p r o g r e s s iv e p u lm o n a ry f i n c t l o n <11 s tu rh a n c e s a t 5755 c o n c e n t r a t io n s as lo w at. n . 5 - 7 . 5 5 n rt/c u in r e s p ir a b le f r a c t i o n a f t e r B.V 5743 y e a rs a t e x p o s u ro In p e rs o n s t h a t smoke 1 5 5 1. In v ie w o f t h * p o s s ib le 5755 I n t e r a c t i o n hetw aur. Mpn5*sr<* t o n o m s b s t F .fo r* t a l c a n d s n o itln r . a n d s in c e 5 5 U 11 2s n o t p o s s ib le f o r H t d 'ill t o r e g u la t e s m o kin g I n o r d e r s , WIUSH 4757 roeommenry th a t o n c a n tra tln p s o f a ir b o r n e .lonasbest? r-t-m t e le 5s 475 c o n tro l 1at! e t oe le v e l he lu g th a t shown to p ro tk ic o advarse; h e a lth e ffe c ts to 4759 aw oksrs. Bacauss no edihgiuto n o -o b s e rv a h le -a ffa c t exposure c o n c e n tra tio n 4760 has bean riv m o n s tra te d , i t i s NIClSM's p r o f e s s io n a l Judgem ent it v t t th o 4768 c o n c e n t r a t io n o f t a l c Sn th e b r e a l h l n c zonos o f w o rk e rs s h o u ld be 4761 e o n t r o llB d so t h a t no w k e r Ss e x p o s e d a t c o n c e n t r a t io n s t r e a t e r th a n 0 .1 4 7 6 3 is g /c u u e.z d e te rm in e ! b y j r e v l i e t r l c m ethod f o r r e s p i r a b l e d u s t . <576* S in c e S lic e c o n ta m in a tio n o f t a lc Is a p o s s i b i l i t y , and tlva a v a ila b le 4767 h-.accn le t 1 5 5 , SVI a n d th e a n im a l a ta 1671 i n d i c a t e t h a t t a l c d l t h f r e e 576U s i l i c a may he m ore h a z a rd o u s th a n t a l c w it h o u t f r e e s i l i c a . H505I1 a ls o <5769 recommends i l w t t b s s i l i c a c o n te n t ba d a :te rm !n o d b y X - r e y d i f f r a c t i o n as 4 7 7 0 s t a t e d i n th a I. O 'jll C f t o r l a docum ent nn c r y s t a l l i n e s i l i c a . T a lc fo u n d t o 4714 fo n ts in c r y s t a ll in e ir a s i l i c a s h o u ld com ply w ith th e e n v lro n e n ta l l i m i t *773 p ro iio s e d fo r s i l i c a b y K illb ll in t h is docum ent. ;?75 S lo e s t a lc is n fta n c o o la m in a ta .l w ith assbestl form s=sbstancns lilO S II a ls o 4776 recommends th a t th e e n v iro n m e n ta l l i m i t o f th e s e n sb.-.stl fo rm su b stan ce s he '7 7 / in- a c c o rd e u rs w it h th e rn e o M e n d e d l i m i t f o r a s b e s to s in th e NlO.'ill r e v is e d W C D 001187 46 iALO MUSI UWAU criteria document on ashoslos 478{ CW Senapi"irse end Analysis 4764 T ttic o m e n tS a d m ethod o s a m p lin g a n d a n a ly s is sSvouit ite si..-.pa., "?tl5 sensitiva, and specific Sor the minerai analyzed. In ildlian, ssaplnc 46 should ita representative o? the worker's breathing zone hr without 4787 lapald morste2 Joo MrlerMiKo, as shas discussed Ir. ChepUr IV saspllne; 4?Se on e two-stere ampiar such as combinat lem cf eyeiona and SSer ls 419 recoMMsnded to? respiraci dust saammmaC and 0cr trun silica analysis 4761 SlaultOiMWuslyc amother satapla should be collected on an open-fees msmiaran* 4P2 filter for shetos nelysis usin snsrgy-lspersl.uo 2-re y anelysAe Ith 4763 transai ss Som or scannine electron microscopy, Detailed inforaotlon Ss 4764 given in Appandlcos S end II Tho racomvondatlon for Seal scsiptln *md 4766 tripla analyss Ss necassi le led by'fchs divers minerei, contents o Saie end 476? Its associai! fosalth hazards. 4766 6spirebl dust seapiln s cimai nd stre! dttforMsrsii and provides 4606 Imiera,ion cSosaly relatad to hazards of tele partido Inhalation 4 6 6 1 Analysis of fr silica content by a-ray di ffraction is a sposi fi analysis 4662 for various ferias of free silica snd can feinet es low es 5 'ufo Sn e 4864 samp** The oathod r**oarwnd*l for analysis of asbestos fibers Is a rather 4065 coepllsated end spensius procedure but it is the only Method that cun 4SO ftv a fjlarvi El At 5ve. InformalSon, 4606 slth Uva 'scoaroonda suapAino am analytical methods, * talc work 4810 wwtrowM can he evaluated as to the type or talc dust present, the -fail nins.ai specS**3 and their conesntrations. Thus whether tha workers are WCD 001188 & a c $ i & s v d t t s l i * * i S r a # b * 5 5 p l r e t o r s a h c w l / Ss *3 s s i 2 a p S * c * 5 w h a r h l q t i d e i .* " 3 ^ r&t.'scans 1 f5 p^'irsor-^. h ^ jtf C i 3c n i kj 2a i i i s p o s c i b i l t y lA i.c m u s i huai r sp osati io in le asmi or to t a le c o n t a ln ln c fr e e s i l i c a o r a sb e sto s f ib e r V* c-J <vl li t &4*`j t ifl u ti _'_Ct r* *i030* 0 100 Ac tu*a *1At 4-TuI au cJce *c2 *a tj c rl 4 0tI U 0in <* *t8i 0 a.4) &ma 9u* v* a 5 A?i fWwr w S *0 * A5 U1 fie.' tA u<3r0i cfO 5 e 1 O . 1 e c < tGi **ri w 5s* l bi)uSi* M < &* d V<> w b -a uO wi . E_ c1t}-i aJ v<ns 1 Vr tWi a %se>t * 2 OW, c g; # tot Ki x.-*: j? vi SM T (uinA: Ob, V* -JV * ss*Ci.-lJ , 2 Ir -n*-> g o ; fS Oe M A, vi G ;p C I*1 c3; <55% 3 ti f a fi) e <r;C.t Li ?fcs e. w e \! UT? t1i is* oewsi '1 s; tS K t. .V1=#9 g K a c f; oer G LtCii tg WCm *C 3 3.s OL' 4 A T5 2 **n t: ; 'J r f tef es sw-1 * -c IA ii >3 b 0 V; ti. 3 u r<=51a -a Sria a .< w! p : t u e; 0 <-* ;?j <A '"jr> a O** 1 cx: < O 0 r 0 tl X * <5. u. 0 V c J B ti V 'J ffi 0 O' c *3 ti w c. 9 K litssij /# ffl 3t I ti Ve n igrt Iti u e H <:i J w 3 a H * ifl re *-*; A S -T n il u . sVI 0 If 01 t s* a T? p r-J3 a ti a * !{ va A <-J st! 5 t i s U) eje L &> e ti >* Su c' ti aJ G I ti *fei p i A <i) lu w ti n r. ti Su 02: 9 a a Ps T5 <N g* 1 risi k. 1 te. >i 9 tJ ai 0 9 V < Ai ti IV c g. vi 3 * US) 1 's tit e vi 1 i G tv*1 * l i- 0 s.9-.- ti Ui a u. 9 fi 'ti O rz e L 4sl -V* ai ti 'SI 1 a it ti te s>Sr-i e n? _l5 y b* 4 c S n f cal Ci -si tsu t/a *S3O e* T i e J 4) c S3* ri ri igj Al i ti K s O t U Bl 4) f >M w tf O uti -9 < ti 'y T WV y 0 ti a A' ssei w Vi k) 3 V- 0 A>' *j v> c & s tt 00 mw Cb *3 < A ti u uri al ti 4 X = R u fi <9a VH A 9 w O ?. A* 1 UI 5 ,e *5 ti ) <- .2 4P l> C -IOSSI 41 .M 3 * fSi vi W c 1 'i - t. >s e 0 e te C. ' c a 0 9 u G 2 5 g c & f> m 5 3 i? a St* aw MU) tS 1% i 0 ri--3 <n u Si* - ' 0 ta ou A>* >. U 0 c at*u: 0 Qs O G G 0> * f? c w gcJ i f 4> A --> 5 V) sSi 9 /-i g 5t1i a %* 0 O S Si ? V < <S m* U '0 *. tj-' ti 9SIs S* Ui > A* ,V ti 61? p! L O t* `e 4? Os U* `jp * ? p u wG 5J 0 0 75 J. 'C SB i&1 !., V. OOr CL S. <c &s?> T# i.--> ao 3 C Vi ti i AP % ---J <2 k AJ Sirs; /r0ii `M t> 2S .V b n E? i 9 4 wV .C ft! O V, 4P 0 C ri s, ii i 'V tO w gj y* 81 *' U s r ori O cP eP w slu m U ^4 c S ti* sti a.) C O* Vf to 0 ... i * i ? *fVy m(>s T <V Ai b fv a e A ? ? r j W tfi OD < a* V r* Mi n f* (^1 tf r?i 2mr 93 C9 m rr s? S3 H CG C9 V 'T a T n t-j * a7 WCD 001189 nsc i-iv m i .is !-: .t :v.i jsM -iSnpu J l p t i j n d liiip u o a fijn o g s j X o |d w fj -<5uoz liU 'in ^e -K . ,. s ' RM fi: <> V S G W <fo SD 1 A Q CMb* * - -J U1 O Ci) c r Jb *0 * u t i" fs. o 5 frB * * 5 ev fc ft > 0 c 31 ft a 3 n e* i o f t a r % * cn 5 P 3 x &3 a o n* i 15 F f > W fV Sf 2 w li 9 0 c c . P K* "1 ft n r* ft <*> *> ft ft N a n `C ** c C f t * V f t -- 3 f t r> 0 S? P e 3 * r " n "5 -P er x r i C 0 & *1 > n 5n nc 3 i ** r G n 3 P r & ft 3 9 w 5 s r> fr- f t ZT 3 r** 0 S t * n A PP 5. o aV *3 tb f t 0 S: * --n P S3 r *5 5 fr s tu EU r 3 ir, ft LA f t ft CT f t 9 n ft f t ft mm ft . 53 ft tfl Z r * IA ft x> P C r ft a 0 E t LA c *< r* ft * n 0 t-- 10 D Er b ?, r 3 * 2 3 es s IA P M T3 ft D 3 r *1 *> r ft V) 1O0 O 3 c* f t ft ft S X S ft 0 e ir, CS ic> s r* fe c 3 O & ft 0 3 3 W C ft ft 3" ft t- n ft ft ft ft ft *< ft P ft LA LA * O n g. p 1 w P n n p* *3* r ft LA U> S ft 'r (r, Su & mt vV -4 y o * "i c ft A > s* J Q 3 f-> ta* I'- a p> 3 3 f e LA 3 P* a. O n c--> g Sv 5 ft P ft ft O * v< a X -- fi r * '0 0 S ft 3a A 5 LU n jy 0 3 * s& 5 V r? o ft r P c 3 n <-> N 3 f> 3 ft! 9** &i X PT M ft 0 5 0 ft r-- P i P 5a ft 3 VT an a 9 ft' * ft A > o m S 3 ft ft * 3 O r> 3 r* ft i O t LA 3 c ft y ft LB T3 ft O ft VI in Ci 3 ft Ui C ft <' ft 3 a o ft ft o w 3 ft > V r* i HK ft t? a: ft ft ft r* 6* ft *A ft* ft Cx 5* 6 1 P { 'X Q a i T n* y r> ->* 9 15 -> y ft fci 3 ft ft 3 f> O' ft 3 <S PM a sc 15 a a ft t a r r.3 *-- H f 5 ft Q & W> r> 3 ft & @n 0 c* I rW W) y 5 4'> 0-- c . fir <-* * 3 S. ii oX 5 0 3 IA e> c p-- f t pm ' & LJ 51 3 a IL 4= O * y E5 Ri B r tam 0 ** e LA J 'J X tfl r*) LA & 0 a y 3 p ft O 3 ft o 3 vr 0> MM 3 . 9 a a S*. ft fl pm A ft k<> *5 tw UiJ 01 t 3 5 ft fD -> 0 *C ft 2 n & 3 O Ma' 3 ft ft U & r* o* 5 n o p n 0 ft * 3 ft ft y * s pm ft ** ft e 3 ft fr 3 a 3 LI fi y o A ft ' ft < 0 3 it ( ro ll ft 0 ft -ft. * V? r3 ; a ` 0 M ft & a 5 Cl ft *o 1 ft o r* r* 5 V H 3_ a 3 pi V 3' O 3 ? a rv w 0 y D ill f* ft ID VI V) 9 * rt a J 'S pm 0 *= 6) V .ft y cc |V r Wi r. D 3 1A C ft f it T5 0 V) -- ft * v> LB 'S 3 G ft 5 *TM VI P? pm ft 5 ft *** ft r mf o ft K ft 3 f> & >* ft ft y j f r ft fct $ m r* to 0 3 & (MM Cm X y n $ ? a 0 % r y $ o 3 & o V ft ft 3 ft S FT 0 ft S fV VI ft p- w (A y ft c0 cfr 3 >fc U* y3 ft 1 V S: er 25 f i* 3 a *0 oO *% < o r Q y B Si S. fU S r 0 s. S 1 &i < o C* . T ft >~ ft y In > & y i f fu L 91 V-. & * <) v r . L-X M (S f> * 0 `g ft o 5 n (Si P ft ft V) C ? S El ft * i P m* ftl 0 0 t &P 3 Lft L fX fs* J5 3 3 > 0 ftJ f r X! n f t m n. O nP f t <> <* t 'i (A 30 n ft X e> ft m t IA Vf cl S * M f t CA " 1 0 " l 0 f> y , LA OZ t P :> ft 2 P te P tfl H n V- a V 2 P" m r ft 0 * 'J p P s ft fil X *0 P i c A *s e> f - ' fr 3 pp f t 0w f t P VI P * tfj (A a fr ft n-- a P 5 V* C er ft o Ci ft 3 c5 f> c A V *1 t?r 0 * WCD 001190 Ifll.c f-SM-.il 1MMI-T S i i r w a y s s h o t i ' r f h i# c n n r i i c t a t i a r m im i l y e n e i r lih n h y ili n j u r v ia y s . >0 r isy s C 9 u 05 eO w -C z ea IO <rt <4 li. 0 a <4 --u -4 V ifl <0 Ifl C t 44 > B e * ue 2f f' a *? s e CS j e 5 r* a u e Jf j e a0 >4 a & VJ x : A - JS > s* tfl a 0 *> --> r e (V W -J i ?-> ** rj V* e x; >0 4 4 03 IA ti 3 u 00 o sci Ir m G. .e a . . >o <? 3a e in l i C * 3 a 44 fi 0 *0 JK C e J k. <S ue ea rii A w i 5* e Hi 4 Ss 0 U b C *. e Cm CS e a S Q0 z e " a V. 5>. *> 3 A* w e 3 v> a? k. C n m* m i `i vj r 4rJ 0 eu 44 mtz V <4 o J Jf fc1 A 3* * tfl a A Oi V ?.. .T r; Ift e 0 i3 43 U a Q V u o e* -- , v 0 e tri* c l / W r * e u E k, ) m <4 V* 0 > n> e tO b <> < o e >--> 0 e fi fc--* e r f % e -j C il ce Mi C *s < 4 0 A U A# #> o c+i e gV r> C1 Ea mo h r .' V *4 ft- ) 1 C t ' 4 r l Q e a3 e JZ 9 p e kV e uw C l* s z tm f. <4 --4 V ! i>M * * M 4 14 o t i <*-J 13 a -M eo y o <*: itt J Z 6 * %C u y V 9 i $ 2 fi <> o e 3 4 t j <4 t fw *3 C s a: a e <fc <s e 1 2 M J E. io# i U >* !b S? <) o e <s* ! fi w U 2K o fr i fi 3 "-i <r* 0 rm 0 fV7 '* 5 G O? V *< > 6K G O Ai s W! b * *1 o F** -3 3 il & Ss & >1 & o% tir * If o w* 1*10 WCD 001191 WCD 001192 902 i\L C H u b I UWAH V I I . Bf:.tASCII MliCIIS 490 90' to J U i& L J ia s s e ja is A lsh o icjh S a le hns l)jn a ld o ly used in modern tim&s I n * " a r l e t y of 4908 predicts? that In v o lv e she ntsposura of a Jar number of paoplsg b a sic rs s o a rc h <5909 o u i f l i o n o c o n c a r n ln c t a l c have not bean c o m p le te ly re sio iv a d . Jtsenc th e se ?.s 405J} i h i p a th o g e n 1cl t y o f pure i a l c and ifia ro `a o f s u b s t t n c s s th a t ccra^only o c c u r <4916 w it h ta le H t t o s t M i * f , 1*1 m l f r * s i l i c a 561,681 c o n ic ml n e n ts sieve tmsa 5912 { e a ly r s f e a r chiBo, but o th e r s u b s ta n c e s su ch o s cfolomlta ch i or Sto. end 41914 i m i c H i i h<t9 sm>. Anim al in h a l a t i o n s t u d ie s &het tSai i n l t s s y sh ea fchs d a t rs e 4 9 8 ? p a th o g e n ic atfiac t s on pale o n rry t i sue o ? p ure fcSc c r y s t a ls , . dccocsite,} 4 9 1 ? cStlo ii , brwefi&wg end this t a l c - r e l e S e d m ln si'a S p y r o p h y l l i t a alone; end In 4949 ay a nandsrt, 4921 A n ire l stu d ie s e lse often y ie ld useful inform ation concerning dosa- 49.2! r a s p o n * r e l a t i o n s h i p s at compound. B e U ie -Jso n s!: i 6`j I and itah n sr Ad 1 b oth 492J p tirfo rite o e nlm al in h a la t io n s t u d ie s th a t stay ts c o a p rr a b ie to humen 4924 e e c n p e t i m i e x p o su re . E s p s r ls e n t a t proto toms w it h b oth s t u d ie s ; such - the 4925 w idespread In cide n ce of I n t e r s t i t i a l pneumonia in the Se h n sr stu d y, eug'jast 4926 th a t fu r t h e r enEatal s t u d ie s o f t h i s nature,,, * 1 s i m i l a r c o n c e n t r a t io n le v e l s . 492V art: needed. Those s t u d io s s h o u ld e d itre ss the e n t r y end rem oval o i t a l c from 4929 I h s I '.mgs p a r t i c u l a r l y w ith r e j u r d to the r o lo o f the a lv e o la r raacyophagss end 4930 species or tender d iffe re n ce s In the clearance response, and further IP I ^ h u r le n s s ta y i& E ii t y s t t H a s o p c p ^ S e l o n s ^ j o s s r ; t o t a i c rai x t i i i ' a s h er b sn i a r t y l u f i r , - s r t t ^ s i r i c c f 3n c e r 0 p a r ! 3 5 c * 2 o e s f % c r 9 s t'.sisuo5V i a l asuodsj-*ot f o ^wjrlojS-ip h v ic i i.; h 11 n i v j 79 me.3 U rt 0Ck a ri c B rl O a i-j* c ; ? e c en W U O O < tr V c E H it t> C *? * (fl o O U 1Z s V c <=e c I U c a *> c *> V t<Jr c Ofj*ZJ S j s E r *- *33* ** *** il 1i"'* > ft wr -- c o ** -- m cal J St ft tn '+- O OJ** m TJ U24e, u P - c o> $ c |Q <; 3JJ S SJ .c **209i "i 1C h Q "O o> # K * > S U. Ci? - tr OS Jfcv rt C M VJ 5c % V) S| _ <* O `C a C Vj O C c i <* ai c c 6 t eVmi y 1'S* v ?; 5d C # v , ! r*. j C J C c s > * a: s j fr 3 .8it c-tfe' V W 0$ *w IJ fcj * f t dt %) 1P i <* ri if< H S c S * 13 ** Si r V 2 s n w t j P* <** . * (C C AJ 6118> 2C J <w .-J 2C J oJ T3 t i? ; .n i j* * <; u 0 s3 191 0 1 zJt V f C? <K t a a C ah MO M htk . t i J 'S 5 fZ a (cl --t (A O O J H h 5 & on (3 2 UO ntt yj 0 0 *5O. y C '"} w 5 c 5 eJ W .wV Cri * CC e ; m rrt A U u Uy t JJ i,' # A CJ * n S * Xi 0B V (-j w 3 1 Jti* O J c Xi a ' t 3 0 m 0Cf w b* tf) s . a r : XL 0 0C A l y ( T VI c MC s O c V. c OO 0c e U .* O c *, ; V* pi ft r c* Vj ` A W * 13 e 3 il- C i 0V . ar *?4 0f j j g A w rj .6CC01 MO 0* K W i 3(A Ift O S> t i ! h,`A S ' s : 'J? a a ,a1 tn > of X ci (A A l . W C Ce in g- T? U / MW i JJ c J t a tfl n_. A V Vt*- c ^01 9(S * s # ia MS H c O <j 01 0 * C Bsl V C v V) U c \ (3 (T t V I *u ^5e QT- i --c s/ic s T j. M e C w a m *. ev 0- c U t-T Irf C* ;> % cKCT5.J1t ? ! 5C4 hfai 3 Ml * cl 01; *%i4>m 7 (S t 3 w V 0 U o tr. ** 4t1 %0 * V* n O 3 2C .* O0 <- t VI C fl? w Ml Hi HS V tfi J A W S -! 1 ft S uX /n ai 3 4 0 c A Eft S t b c> tfj -.j eJ c t CCu v fl vi 0 U 1 4* 2 5 9C s> t VJ b* nt VI C 0 1 tA w c E $ S r et i- .Ua f t 0 V t, j S 'Sr> b . > V. w s n g ! &> ! V. Cc 7 w0 ft O a 1 0V V, A f t eW J J c l UM C U X 0f t f t t .Q e - w ' Tn 0 4> r ft M e 3C * C *rt V i t jS 5 0 3 0 *3 i)C I U ne /r * : tfi Q |B * e % JJ V < * 0 o X h 13I (a a i ' W a I M g c U V i (A r O *s Ow a Of t VA t 5 0j K Si i> s --* 1 1 55 <& Kl 2* a Ci j ? 9 9 3 $<a O c ft* . 0 9K S i i M C 0 5 0 0U j V) f t i f t 0 0 en 0O 0 4 010 0 133V* " 5 **7 38 V-r * ICI AP S f" Hf f t *? n ? Sf T H' & t tn .P > r> f l m c c* & * fi kJ u. ft s''*-^60 s p c r f c s c S 3 <? t 0 WCD 001193 t<il j.-r.VKI .1*.HJs' DIVt it <hj A* 'OjJ' A O l* d. <w a Jk> *Go '-ifateii W ft u% t*rA. Bi 1 u ij 3 fi. 1 9ftr ft !*** f3it ft oy *0 o n 5S jw11fi < s? n \yoo>>' P> cf--t K . ft 3<r (9 H a o e3 V!* "i r/ O 6 0 0* f* 5 C as '5ii3a> i ? 1* a ,ft- ft. ? a f&<i*, i rO o 104 IaI 2 p* 3 li7) 11pcM>i tJ *1 ;a !* t3rt>i <o. 0fot ft iw> a pi (aA *33 ft 53 y 5* < E 0 oc* 3ft a f0t B a r 3 o 3n1 o2 n *fr<t* & 5 3 a 3fuo 0 9Sft tot 8 (UVt cs py ft a nn f-t* 32 n! *U<:t *"5o1) 5 o a efant ft P> 3 SGP 50* aIA P0 ~tii aw Ti 2^ y `G1 m0 5eM P i*T* oP* a <fe A A O* 03* <*J u* V. i C* &9* 9fpt* PI 9y PV fD5* T 0 fi r y *-- frvt i ft t*> 5 O 3M *V0 P fi ff2tt a pt cc'Oi>. .K (V 2 C' <0 J c 3 okl fftt Off1Pt/> fi aOi rfi " if1l*t 0 p *Prfi> M3fct *< X "eft f3i rt? *CDf rt Mfi * 3V f53Uti ft OC%- 3fi P r> fi r* 0Cn. r0* w f2t y i Vf* P&-1 a e 5 PS*i a a O y t> ft ' cr> y a 3fi 3s A nr*i ' 3s> a 5Ut. , 2A 0 T*fe>t rr nC 3 3frt* 0G <3 er f1t- 1"1 ft G rs?* PSft y tne aT *? '1 fft i"x ypi tmsr l 3 Zfi**T> fi Bffftti "i fi" fi ft* ft a yG nc <1 H v PI * f9t) 3i Oy ypi ffti fi WCD 001194 *<H f Al C M UST DMAI'T w i l l . I.'LI-1. MENCIS MPS3 I . tlr fc - o th w e r tn c y c to p e d a o f C h e m ic a l T ic h n o lo q y . New V e r i, I n t a r s c le n c e ^ 8 !? P u b lis h e rs , 395, o l I I , p 565 <*?0J 3 , H o h l AB L n o r AS, S r i t U l f IJ T a r a n t f l, K lls a e n tld s s B Boues O lf, "jpCS S S in n e r DL C o n su l) * I s la tin s e d p o m e ' s -- h i ne r a l e nd r h e m lc e i JOOS tb srscte r sse S o n J T o x ic o ! E n v ir o n i f o a i t h 2 -3 2 5 5 -t'i, 1976 SiG 3 . L a 3r AK A s p e c ts O f a l m f l i y O f C a lc , in G oodw in A l e d . ! * 5 008 P rocaatR sa o f th is Sym posium on l a i c h a " e t Was.'sl n o t on DC on a 2 a y 1973. 3 009 S p rS n c f I Id , Wa0 US D s p t o f CoinsK-jres, M a t io n o i T e c h n ic a l I n f o r n a t t o n S a rv ic s s , 3 0 9 0 1 9 * 4 pp 5 2 - 5 3 f3 PH 234 6 7 1 ) 3 0 4 4 . 6 n i rye n Ufo T ft's , in K jrt-O th m e r E n c y c lo p e d ic o f Chaal eai T a ch n o to q y, 5 0 '1 5 -a d 2 r s v ,, Maw V o rit, I n t a r s c le n c e P u b lis h e r s , 9 6 9, vos 1 9 , pp 6 0 8 - M 5033 5 . L u s t r s t h il , S c h m id t KGs { D e la t io n o f t a l c a nd s t e a t i t i t o a s b e s to s a n d 5026 t h e ir s f f s c is in n re trc c h is e l a n im a l e s p tr i a n ta ti n on r a ts .? B e lt r 502ft S1 Ifco se -P o rsch 6 8 *1 -6 0 , 1959 lit e r ) 5025 6 . ffiJ c S o a p s io n a , e n d P /y o p h y l I t e , p r e p r i n t f r e ts B u l l e t i n Wo, 6 6 7 . US 5032 D apt o f I n t e r i o r , Gsireeu n f M in u s , IV7`i 0 2 pp 503A 7 . Dos s.s TsjSc e n d p y r o p h y I ! s t ,, in, i n d u s t r i a s M in s r e ls a n d llo c its , S a l t 3017 L a tiv C i t y , U t h , S o c ie ty o f M inine) tn q ln a a r s o f A!M l:, I94U pp : 127-47 i * u : h h : uMAi-'r 5C-03 B. setss a 0 a iittn c r LA* Crneres e I ta lc am i ta lc o s ls . Arch Enel ron 50S5 H e a lt h H S 3 0 C -U B c !'.<07 5052 9 . KeC rone l.lo A n a ly s ts o f T a le h y K - r a y 1>I " f r a c t i o n a m i P o la r iz o ! L ig h t S lt5 'i Ml cro s e o p i* C j.n c S n n a tJ , U j D e p t o f H e a lt h , E e tjC tlo n u a m i (9*1 f a r * t P ih l!c 5055 H e a lt h S a r lc a 3 C e n te r f o r 111 soaso C o n tr o l,, n a t io n a l I n s t i t u t o f o r 5350 l) e a > i> * tlo n e l S a fe ty snd !t 3 . lth 3 197?., 55 uu 0 05b 1 0 . f it o r o l C= f S o a p s to n e s i l 1c o s t s - --A c o n t r i h u t Son t o th e p a t h o l o r l c a l M 6 9 a n e te s y o f s i l i c o s i s . I 11*2 Cr P a th o l A n a t A l l g P a th o l OsB5~5i) (C a r) 5066 H o C a r o z z t Ls O c e rp a tS o n an<1 H e a lt h . Genov,, I n t a r n a t i o n a ! L a b o r O f f i c e , 5C60 1934a o IC05 5 0 7 5 l,? ,, Z s n a l i i Ac IP n a u a io c n n lo s ls f r o a t a j c u s e d ! n e t i r e f a c t o r y . S Kd Lay 50?? 22? 3 - l e H<31 I H a l ! 3. lia y n e s 5 E x o e r in e n t a i o u s t I n h a l a t i o n In g iln e a - p l r s . J tty ( 3119 6 - 50(15 123, !Z J t 5002 14. H n llc e rd A C (A c tio n o f t a lc list on the lun cs--Cx|ier iB e n ta i s tu d ie s .) 509s A rch H al P ro f ilyg fo a ic n l In d 2 *5 3 0 -1 9 , 1639-40 IH re i 155 WCD 001196 I ALU I I rST DRAFT SOC 55,1 9 LycojjodS aw ra n n id a i -- i t s c l n l c e cut p i t h o i o f k S I05 t i s n U l c w u o th .r w 8 h e n o ie no i m e l o K p ro c isa ti hy t a l e . A rc it PecDo 5 S 3 lds'326-33 3933 5189 1 6 . H a n f t a r Sis Tales? ponete r r e n a lo n c At ch P s h c 2 4 - 3 - A 2 , 1931 5117 17 S e S s S2, MSSESawts Cl/s C o s s s r c lc l t e c -- A n ie e i a n d m in s r e lo r ic a E S i l f i sutiS S v J Cnd M y T oxS co t 2 4 T 5 -W 1 9 S825 (8 . r h m h e id tS w it V a is * o r C h w ic p ! S iin tc a c a s and p h y s ic a l m M s In S320 iis * l c r t r c o a E n * t r e n a s s i 198* In t n d 8 ( i C h e n a s o r 3977. C i n c i n n a t i . * rie *n S l i Con T arane o f G o v a rn a a n te i i n d u s t r i e l H y c i w i s U , 3 9 7 1 , j 53 S i 30 89 F r i s t a d i 3T, teitason SB, S h i fi* E T c lc o s s 8>y sp o su re io g r a n u la r S i l i t a l c In e griibbar Untiisstry. 3 Nord ryc; C id s S r 49s A-lt - 9 69 S .'e ) S IS 8 2 0 . S c n s a t i! 0 , Gsoic PC, lies.v ii. i i { B e ta on ta le s * pn sismo vpn I n a i a . 3 Mali !8 ! a Lev 5 4 * 5 6 0 -8 2 u 3963 5 3t a i 5D 5 21. * o tfo S U fiili t s i c pne ura o co n loss-- A tre s ta s casa. O a s i 28 3 ? ~ 4 I, 5 H 7 19/0 l> 6 WCD 001197 I A li: H l i v r OIM K l' 5154 22 sU .U o r A , V u l r s t o l n AS, S odar Hc lia d t r HA, S a l l l t n f f I J t T e le 5 5 5 p n e u m o c o n io s is -- S3 fn ijc a n e a i s u liJ S o h i a l e ro s co p i c m in a r s i p e r t ' d u s . 5S>7 Sistf 5s 3 9 5 -4 0 2 , i 9 i i Ara } 5163 3 2 . '1*0 K , G ra ce y OU P u la a n a r y t a l c o s ! s f r o a c o s ia t tc ta le n to powdar.-, J Aia 5165 a d #.SSoe 2 2 :? 9 2 - 9 3 0 1 9 /2 5 1 / 2 24 P a c il F , b r a n d i et t s ! Kt y s ce sa s o t a l c i n h a l a t i o n , ) l i i n a r v a P a d a t r 557*4 22 7 7 2 -7 4 , I0 7 C U t a ) 5 ` tO 2 5 . Ilu d a s ST. K a lm a r Ta M a s s ip a t a l c a s p i r a t i o n -- S u c c e s s fu l t r a a t m a n i a l i h 5 I l i 5 daKSiisiSsorec, Ata J D is C h a d > 6 1 * 6 6 3 -5 4 , 1966 StM 9 26 U o u la SU, `d e rn a -t > u t? w m l r t i o r y d l s t r s s s a i t a r s c t n l i t U U o n . S r S t l i OS* Chasfc 6 6 1 2 3 0 -3 3 , 0S72 3I9U 2 / . L u n d JS , 6 -a lilt-lid S m u ssa n Mi A c c td n n la l a s p ir a t io n o f t e l e -- H a p o ri o f 5599 cese In a tw o -y a e r-o ld t h lI d . A cta P in d la tr Sound 5a295-960 19*9 la 7 c I , * WCD 001198 I A1C.' P icvr DICAh 5 2 J S 3. d a i M r J J t KeUtenaon 45 t'eSnarq S i F * U i s i p l r t t S n n o f t e l e : powrtar by 5214 * s h i if - it o p o r t o f c a se . i E n r i J H l 266c 3 6 - 3 ? , I9 W 5 2 2 4 -29. Nt V s r ta iiiia t CS. Al i t e r 31 Crane JP,, G rim G,, A ndre j i t 5>i3b f f t e e lr f u n t a l I n h a l a t i o n o f ta lc ia n fio w ile r b y I n f a n t a -- I n c o n n e c tio n t i l t h two 5226i rose s tu d lis S o l P e d ia tr ic 2 f> itil-B 4 v t v f j (F ru ) 5 232 30. C 1.3S D , Anqair m IG e c ih fro m s iif f o c e t io n as a r e s u lt o f th u in h a la t io n 5 2 3 3 o f b a t y p o t-id a r. J C S a csrae ritB F ra n 2 2 J 5 0 (l-0 8 5 1 0 5 4 iGr> 5 jH 0 3 ! J e n i-ln s KG* R u s t in c p o a iia r i n h a l a t i o n . J SC K cd A sso c 5 9 s f t ? 0 1P63 52S1 158 !0'.3Si49- 3 2 . l*s'es?.j,st SC* a f f e c t s a t r s r i e i n s S 'a c c is rfe s ts aw 4! lu n q s . J In d ifyq liii WCD 001199 lA l.C i-SMSr IJItAlT 5258 33. tlra issso R aL', H<j ( 1 a j g The e f f n c t s o e x p o s u ro t o u n s i i n Rx 5 OoorqAa t a l e a i S I* a n d E C n a s. Pub e H e a lth llep 5 0 M i l - < i 3 , J-.*35 5266 34. S J o o t l <j SmSth ( i l i , , r e e o b n rr L Heport on stu ri" o f t c c iner anri 5 2 6 ? a l H o r s I n S t Law ranta C ou n ty, Wn i o r . Inc3 M u li HT S t a t a Oop LeSior 5266 ?2 s414-37,468-69., 1643 5234 35. " - l n f r . J <3 K0 ( D is ilo J , la h e rs h a ir IH : T a le p n u u a o c o n to s ts .- AMA Arci 5276 lu t i lis e a t h 5 2 ^ 6 6 -7 2 , 1655 5279 26. K l a l n f s l d S t M e s s ila J , S h a p lr o J- S ^ e n c lc b i He b f f a c t o f t a l e H tis t 5 2 3 0 t.n h a f.e l Jon oiv l u n r fu n e t o n 0 Are! t f t w lr o n H o a lt h ! ( I M 3 l - 3 I ( !V 65 5 2 8 8 37,, l o l n t l t &. C l e l CP,, ",a J .-ra n o t is i: 1 JF ,, M o s s iti J T a le p n s u i a o e o n l o s t s S2B9 il ira p o ri o f s ia p iiS a n ls t : it h p e s te io rta fln rJ in c s . A rch E n trlrt H e a lth 7$10 2 2 9 0 $54 396 3 5 2 9 / 3Bc i U a l n f a l u , B a s s lt e J , Knot'oen i l , S h r tp lro Jc P u lra o n r.ry w s n t i l a t o r y 5290 fiscictio n in te lc o s ls o f Iir v j. O li C hast 46592-980 964 51C6 19. iC le ln f e t r i H, M e s s ile J , Stia|)1 r SnitncScSl II, S e r f a t y Js l.tsruj 5 3 0 6 f u r ic i to n c h a n ce s I n t a l e p n e u m o n n c o n lo s ls . 3 o c c tip Med ? 12-13,, 965 WCD 001200 lA l.C M ir . T DlfAFT $ 3 1 4 4 0 . < I aSn?alSi3 H, .M o s s lte J , S b a p l m J , Kooyman f l, li vj n c i c ttl l?s .315 f u n c t io n So t e l e w o rlc a rs -- A c o m p a r.it I a p h y s S o lo n lc s tu d y o f w o rk u rs p a p o sa tl 3 lfii i a f ib r o u s and g ra n u la r t a l c lu s ts . A rc h E n v iro n lls o t lh 01550-66 1064 $.323 41. A B l v J ia t o s CP,., Pent H a h lee T i r i J ? Be T a l c o s is o f u n u s u a lly ra p i l 5324 d t v s id jM i m t . f l r J Snd Med 125 4 3 - iO , "055 S B ? 42,, ES-G hawsb' S tf, E l-S a ra ra OH, SSshessab lie T a lc p n s im to c o n S o s is . J c 'jy p i $334 Sfisd Assoc 53s 330-40 i$ ? 0 $348 43 H s ie is y n A , O ib s o a JBs S ijis e o iw s g rs m iio c x t its t o i s t e -- A cans o f p o s t - 345 c p s r a t lv p rS to n * a i A t s io n s . B r 4<t J l* ic T ? - J B e 1948 S B O 4 4 . sScCs s I u k 01 Hr,51 ( W i lim b i H e a l i r n t i i l s M t i -- f if jt h p a r t i c u l a r r s f s r e n e e 5352 t o t a l c ^ ra n o lo rita 3 r J O o i'M ito k B3 s 1 5 3->u 1070 5 36$ 45o T jr* JU* H t i h i a a i a K F a * r i T a lc rranccSoEES o f th t t sic I n . J A Med 53ft S A s s o c S 0 8 i3 ? 0 -? 2 j iOC-ft WCD 2 I AO o WCD 001202 I'ALC H lic it d l M i r 5367 4 ft. Hand.) K, Is h lk a w a 1, S iilh a in (A ra s e o f p a p illo m a o f th e c o n ju n c tiv e 536H caused ly baby p o w d e r.) l- o lla O p h tha lm o l Jap 2 0 < 6 4 'j-5 0 , 1969 (J p n l 5.175 4 7 . M a r t i ss lilM t a i c t r e e t n l r i c e a n d Ja p a ne se s t o n a t h c a n c e r . f t s lf t n .Mod J I5 ? 2 9 -J2 0 1971 5384 < 8 . liir c h s t a T ,, fC uratsitne Ths -fe o ^ ra p h i cr.1 rom per, son o f m orSaSSiy from 63B5 can c a r o f th e stom ach a n d n ic e r o f i l w straoaefs ip. Ja o a n, t?r J Caps*' 23C4A5" STS? 79E 59ft9 5392 40. M aisudo it, H odgkin 8, Tanaka ft* Japanese g m s trtc c a n c e r-- p o t e n t ia lly S39i ew' c i n a o i n i c s i l i c a t e s J l a l c l fro tS r i c e . A rc h P a th o l O ? :3 6 ft-A 8 0 9 7 4 5<iS.? 5 0 . P n o lo y FUfe t a l c a n d g f t s t r l c c a n c e r . A rc h P a th o l Lah tte ii ICO ^ilO , 5976 54SS 58 iS e sd e rso n t i j , J o s l i n CAI, T u r n b u ll AC, G r i f f i t h s K T a lc a n d c e rc in o m a 5 4 ! 2 o i th a o v a ry a n d c e r w ls . J llb s t o t (iy n a e c o l H r Common T B t2 6 ft-7 2 , li> ? | 54119 5J S e le e c n i l t i , tie m in t J `4 , u .ig o n e r J K . I r u l n a s Jll> M o r t a l i t y p a t t e r n s among 5421 m in e rs and m ille r s o f n o n -a s iie s tttn rm t a lc . P re se n te d b e fo re th s S o c ie ty fo r Iftl M i i: H l l ' i t OUAi f llc c ig je l I o n i! end t-n vl ronnw nt,! Itiia lth M lnr im 5 4 5 3 F lb ro u s s r d F a r tic u la ls b u s i end h e l r E a te n sto n 424 a s a s lllm io n o D . C . , Da cambiar 5 - / , T V // )4 pp " O c c u p a i Io n a ! 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PI re* L i 0 P a t e r J a R e s p lr a i o r y f f i i t r b l d l t y * r r u b b e r w o r k a r s -- I . 5W V P re v a ls o c i o f r iis p lf a to r y syiaotons d i sansa in c u rin o w o rk e rs . A r d i E nvflron 5430 K e e H h 3 1 *5 -9 , 19/6 ' 4 5 * 5 7 . tv!sr*an DHP llia rra s s KA,, p a t o r s JMo T a le H o rira rs H s a lth S tm iy r t e p n r t , 5457 Boston,, H tiry e rU U n iv e r s it y , S chool o f P u b lic H e a lth , 8977, 52 jtp 5<5AO 5 3 . ila s s it J 0 B a d d lrt S , K J e S n fe ld Bc P o im o n a ry i s | c o s l s 0 c l i n l r a l 5461 e s p trIm e n a D S tu d y . ASIA A rc h I m i H e a lth 203408-1 l a C959 5-16`S 5 9 . D e e e n t J K , G cM hia JP , Brown D, im ^ n r.a r J?s H a a it ii A s p e c ts R e la tc d t o 5 4 6 5 s a n a r * a n d M3 3 J r * f i c a i p i t l o m l i y s p o s o ! t o A s b e s ti f o r a T a le C i n c i n n a t i , 5 4 US O ept : t f it e a lt h o C-liiteat in n , a n d a i f , : r . ; 0 P u b lic l i s e l t h S e r v ic e , C e n te r f o r 546.1 ills a a s s C o n t r o l, W a iir s ra l I n s t i t u t u i n r O c c u p a ti o n a i S a f e t y e nd H e a lth 3463 D iv is in o o f S a n a si Irence, Gazerei t r a i n a t i ons and F io ld S tn d ls s ,. J975, 125 pp 5471 6(5,, OiSsSi UT. Xiyy JtW f a / ! o r Lds f i , * p r a v e n ljo n o f p o r i t a n i . i l e c h e s ta n s a n d 34? i t e l e g r a m i o s t a li b y c o r t i sorte. liu r g K e ru n , 1 9 5 2, pj 5 2 4 -3 ! 5435 6 ! . ih in i AC Ho s s jv e p u iia o n a ry i l b r u s i i fro m th l a h n t c t i o n n f t a l e . 3477 T tio rs ii 11*2117-94,. 1956 162 WCD 001203 iA U H i r . i l DiWl f S ili') 6 2 ,, M llb y THS i n t t i f . j f a r 11 ( n i s . l i O c c u p a tto n a l d is e a s e s -- A ( tild e t o l h l r S'l t i l H a ro g n l t l or, ('85 p4>51 r a t i o n H o. 10V / . US U opt o f Hm U I i , U O u c a ll on 3 a nd 55b2 S f,f r < c M i c H e a lt h S e r v ic e s IV 6 6 , pp 4`i --t i l 54u5 0 3 . C le in f s id M0 i i n i i s U r J , Kooy.m (I, 2 a t l *i!ic M o r ta l t t y atixm n t a l c m in e r s 54B6 a n d m i l l e r s So Mew Vm k S t i l e . A rc h fcnvj ro n I t o a ilh 1 4 3 6 6 3 -6 7 , 1067 5 :0 4 0 4 . A t e l n f e l d M,, s a lt s J , alci Ha M o r t a l i t y e x p e r ie n c e s amono t a l c 5'V5 w o r k a r s -- A f o l!o > s - iip s t m f y . J ilc c u p Hod I 6 i 3 ? 5 -< 9 , 074 54VB OS. U e th te - [u a n s k a J * (P a th o m o rp h o ln f i c a j ch a n ces *n th e r e s p ir a t o r y s y s ta e 5-599 i n o a p e r lie e n t c l t o i c o s l s . i Mad P r 2 2 < 5 - 5 l, 1071 ( P o ll 5506 6 6 . .tc h n e r Ap, d ic k e r Q (, C annon .4Ca I n h a l a t io n o f t a l c l>ahy p o o d a r by 3507 b o a s te rs . Pood Cosmct f o r i co l l5 8 2 l-2 9 p 1977 5 5 !5 67. S chepitrs U u rk a n 1 An e n p e rm e n la l s t u d y o f th e e f f e c t s o f t a l c 5510 c iis t on a n !m i* t i s s u e . AKA A rc h i n t i H e a lt h 12*317-211, 1055 5510 6C. d ro s s I'c o e T r e v lI le H ip , C r a lle y L J , C ira n q u ls i riT, Pundsack HM The 5521 p u lm o n a ry re s p o n s e t o f ib r o u s d u s t s o f d iv e r s e c o m p o s it io n s . Am Jnci Ifyo A sso c 5522 J J is !2 5 " 32, 1070 5327 6 0 . ieriim n SSI O u s tin g ponder granulom as f o l l o e l n r s u rie ry Sure Oynoc 5520 let 161501-07, 941 16J ' l `. WCD 001204 ai.c u n i r imai- r >5'3 ?[>. -asn As T ic o v in e n [is P apar I n*ini.f l and c l i n i c a l o h s t jr v a l !a n s or 6531 ijr a n u jo iw s le u s i b y t e l e a m ! mufla o t h e r s u b s ta n c e s . A c ta C i i l r 5 ca n d W S :i3 i 5S3V S I, I9 1 5345 ? ! , urshar.t JUP, J s n k ln s t* th e o f SntrocUcSno c e rta in suggested 5 5 4 0 s i f c s t U n t e s f o r t a l e I n t o p e r i t o n e a l c a w U y e n d i n t o wounds Sn e x p e r im e n ta l 33415 n lw e la . 3 Pharci Plafirm acol 4 0 9 ,3 -9 *1 , !9 5 2 SS54 7 ? . < ie h * w AP0 HI I t e r s o n CL, Cannon <iC0 Busch bon- RL fa n n e r *Me P u lm o n a ry SS3S d .p o s ? t i o n s t r a n s l o c a t i o n a n d c lu a r a n c e o f in h a le d n s i i t r o n - a c t i x a t a u t a l c tn 8356 hetsStarSc Pood C osset TokI co* 15: 2 i 3 6 9 1 7 K a 3 73 P h S U lp s _;C , f o t n n P J0 H c rd y . K, ' l e n r a l i i SDs S tu d io s on th e a b s o r p t io n 53A a n d d is p o s it io n o f J W -lB b a lla d t e le in th r e t , a o u s s , q u im tB -p lq a n d r a b b i t . 5564 Food Cosmet T o p lc o l 16*361-63, I WS 55653 J<5. S ifs r.s r Ap... Tsfmesr TB, B o sc h b o ro ilf.s A b s o r p tio n o f n t a s t e d t o l c by 5569 h s w s ta rs , Food Cos mat Toe i ro l 1 5 *451-55, 1977 5 57* 7 5 , P o t t ? c F r i e d r i c h s SH, Huth Fs R e s u lts fro m a n lw * i .x p a rlm c n ts on the 557B c s r c lf f it ie f ; e c i i s l t y o f fibrous- d u s ts and th a lr J n te rp rsta tio n in repnrd to 5560 Sagaori re n s ia art !U M sn2 .1 / . r i t r s i b l d aS cto rlo l P e r e s J tc.nl:*1 i n f e ik tlo n sk r H y o Abt 5 5 6 ! M l i r i sleleSl 6 1 6 2 *4 6 1 -3 * , IV76 life r) 5585 76. S th S il rp r*m a n te l s tu d ie s on U o l o j l n i a ffe x ts e t t r i m o l n * t a lc 551? on h a m s te r s . P r e s e n te d b e f o r e Ib a Sym posium on T a lc D o s t H a z a rd s , h e ld e t 5536 l.'fis fijn ' t s n , DC, S a y a . 197.1, C2 jj|> I Al l.' H k S f DtiAhl 559 3 77. M u ta < e n ic C v i lu a t l o n of e x p o u n d EDA 7 1 -4 3 (1 9 / 4 )-- J a le . S p r in g ) l a i d , 5594 Va, US Dept o f Commerce, N a tio n a l T e c h n ic a l In fo rm a tio n S e r v ic e , I W 4 , 100 pp K>9: ( M U S PB 45 458) S 6 0 78. f e r a t o t o g lc E v a lu a t io n of FDA 71-47 ( T a lc ) . S p rin g / te l d, Va, Uf> Dept o f 5603 Commerce, N a t io n a l T e c h n ic a l In fo rm a t io n S e r v ic e , 1973, 15 pp IN T IS Pi) 3 560< 028) 56! 1 79c Baw ls JKU: Fhc flb r o g a n lr e ff e c t s of m ineral d u sts In je c te d In to the 5 6 *3 p le t r a t c a v it y o f m ice. Hr J fcvp P a t h o i 5 3 i 190-201, 1972 5620 BO, A n d e rson D, A ye r 11, Baler, E, B a lt e r JL, E t t l n q s r IU , K n lr iit 15, Kumler 562! K 0 i-ane P, L a s M n S, Llfipmarm , M ercer T, K o rso Ks Guido f o r r e s p ir a b le 5622 s e i s ffn iplC n q , Am In d Ijyq A s s o c J 3 M I3 3 - 3 7 1970 5629 80. Gardner Ilia (inaction of the liv in g body to d iffe re n t types o f m ineral 5630 ciases a S th and w ithout c o n p lt e a t in r In fe c t io n , Technical P u b lic a t io n Nn. 5632 929. . K fo rk , American in s t it u t e of iiin ln q M U ) {|u r < il cei E n g in e e rs ln c t 5633 1936, !5 pp 5618 112. DeG iioldre Go D u st S a m p lin g i n M in e s , O c c u p a tio n a l S a fe t y a n d H e a lth 5639 S e r i e s No. 9, Geneva, In te rn a Io n a ! La b o u r O f f l c s , 1967, Bn pp WCD 001206 fALL F IH '.T HHAFT 5i<8S A 4 ? S 3 , sjnrtrow Pfc' I:walten!ton if in h a la t io n U e t s r d s b asin i upon thu r u s p j r a b ln last concept anti h a p h lio so p liy anti ?ppt cat io n e i saSnetivs sam p lin g, Inti 5$ Mjff J 25s i 3-36, l64 5 6 5 6 B-!, L S t i l f f i f l e i d Jtj P s i c h i F L o Schrnnt! JfSs B u l ' s a u o f ln ss a id g s t Im p in ge r S5.T f e r ltui Sem pSnr, Bureau o f S in n s Hl 33f>. US D u p i o f ih n I n t e r i o r , H um an 5*59 of Kinast, !v}7. *4 pp 5 M 5 8 5. Ur eeni'U rg L c B lc o a fie S t J J s Th imp tng r d u zt ivCnp!.ng a p p a ra tu s as 566 u sati by h u US Pub} 3c H e a lth S a rw ic e . U S HijbElc la o lih S e rv <7ift5'-75t, S32 5 * i 6. lie ilt T * werir II, It r in t s r P o d s f i 3 form o f tho O ra e n b urq -Sm ith 5 *7 5 S a S ra r fo;- f 3*1 S u sa , a S tb s t o r y o f i t s o p e r a t in g c h e r e c t * ? I s e s . J im i 567? iiyg M s , 032 53*53 ti7 K io pit: Katfcotis o f tuest Maas i-.mint, !n irs n st n SF Cad. Is 56G6 Pniliasoco.^Sor! 3-- Procese*; ngs o f the in t e r n a t io n a l C o n f ra n ts; Johannesburg, 5687 S s p t 45-24 1959, H uston, L i t t La, Brown a n d Co, 596G,, pp S 3 - 20' 5C5 CU. Ifcaans i S * Stap uncled im p u rity in ih a o i r . P ro c Hoy Sue Lon rim S " A s o ph i o ji&~3?5 922 166 WCD 001207 lALC R U il IJKAtT 5701 89. Ay**r lit, S u t to n UW, D a v i s III* hi z e - s e le c t lv e r r a v lm e t r ic sam p iln In 5702 lusty I n d u s t r i e s . A In d ily.j A s s o c J 2 9 i 3.10-42, 1968 5 75 0 *0, d u rn e v Se , 1 t it a n s CU, 8 R g s 1(11* In v e s t iq e t t o n o f c h a r a c t e r i s t i c s o f 5755 P au sch and Load d u st c o u n te r. J Imi tlyg To::lcol, 2 0 2 4 - 2 5 , !P38 S 7 9 9 ! , ley S H i The cascade lo p a c t o r -- in In stru m e n t for sa ra ping c o s r * 5 5 0 a e r o s o ls . J Sci ln sf.ru * 225887-95, 8945 $?X H a rc a r TT* u n U a c a S ifa r a t io h o f i * c a d a t w o a c t c r s . Asm Ocecp llyrj o i l . 8730 1962 5733 V3, Coil un J J C riontan DMc T h e n r a t lc e l c o n s id e r a t io n s , ile s im , end avaH uatSon 5738 ot # ceocad im p a cto r, Ajs in d Hyg A sso c J 2 8 3 9 5 -1 6 4 , 196? 5740 9 4. Couchnan -*'Ds Use ot amende ln>prctors fo r a o a iy z in a lr d o r n c p a r t l c t e s 5 ? * o f h l m sjio cE f c r r c v lc y , lr i n U i 'iu t lix w il S y a p o stu a en F i s s i o n Product 5749 K s ia sis s and T ra n sp o rt Unrer accident. C o n d it io n s ; uafe Ri loe0 -n n , A p rS l 575 0 I M S , U5AC p a rt Mo. a i HP-0 5 9 4 0 7 * v o l 2 965 5753 9 5 . lliiSsoe' J M in e r t l a i and o r a v t a t lo n a t c o le c t o r s . In A i r .'lanpltng 2-755 ?n s trustants f a r S v e lu s t lo n of A t s o s p h o r lc Coot i!nants, * d 4. Cincir.nr.if., 5/ I I 1 WCD 001208 TALC H lt t T 1X/AFT A * rie a n C g n ie r t n of Governmental Iri.liistrl.il lly ile n ls iu , I9 f2 , pp S B ? 27 to 11 5 7 * 2 Vn. U r s n b u r c t , S a l t h tfe's A new In stru m e n t f o r s a m p lin c * !e ! r iis t , 8743 S e r ia l 2392. US 0 * p i In te rio r,, Bureau of ! * * , Reports of In v e stl< c tto n s S7&S i V22 3 j S;7 ! 97. fh r is h o lt ! L im it '/allies of p jrb o ro n C o n t e a t n a n ' s -- ,,dope" b y the nCGIH S T ? ? fp 97! C in c in n a t i, Anar I con Conferne<a o f Gotrsrnwsntnl In d u s tr ia l 8773 ily n iin lc ii, :97l, p 29 ' SJUO 9 8 . O r ln k a r !Je H a tc h ? * Im S s s i r J a l listst-- H y o S sh ic S l m i f i C a n c a , 57U1 K c a su r n n tt and C o n t ro l, ad 2. Neo Vorft S Sc G ra n -H lil lo r , 19S4,, pp la T -S S 57B9 99. c n r S s t lf l av> T3u o l a s t i c p r o p n r t 'o s o f th s iaphysssatoii* lu n r end t h e ir 3791 c l i n i c a l s ig n i f i c a n c e . J C l i n In v e s t 1 3 295- 3 2 1, 8933 5 iC a :')0. D l t t r s l M t i o a c f eioi'SSgihesT c cn n c -io ira t Io n o f f i b r o s i s - p ro d u c in g flnrt 5799 alftSiar d u sts-- Propostid stand ard i*p ln rr,r sam pling and countSoq techniq ue,' in 580(1 T ra n s a c t Jena o f the F i f t h Annceel K a e tln c of tha K e iSo n a t C o n fe re n c e of 5805 Goveriw aenial ' S n d is s t r ia l (lyjle n S s t s . C in c in n a t i c fiitiarlcan Con fa re nee of 3M02 Coverm ientaii In d is tr C fc l H y i-Ja n Ssts, lul>coiiMi tto e on S ta n d a rd Sathocis, 1932 5807 801. Appendiu F -- Uni form method fo r J n o ln ia r c iiim U n h in T ra n sa c tio n s of 14*1 WCD 001209 WCD 001210 I A i r H l f . l IHIAJ'I the H it 11 y - ! l r i t Annual H e e lin g III I lie Am erican C onference if Covenunental 5809 In d u s t r ia l H y g ie n ists, Denver. Color.Jo, May 11-11, 1969. C in c in n a t i, M l a Anar lean C onference of Unv eminent. I l n o is t r l . i l l ly c ie n is ls . J o in t Committee on 5811 Uni rural M ethods fo r Dust C o u n t in g , 196, i>p 204 -0 9 5816 102. lie commend t Io n s o f the M e d ic a l P.(search C o u n c il P a n e ls D e la t in g to 5817 S e le c t iv e Sa m p llm , M inutes o f J o in t M n e tln t, I on don, March 4, 1952. M edical 5818 Research C o u n cil, Oust Siftco u n ltte e, In d u s t r ia l Pulm onary D ise a se Committee, 581 1952 5825 103. ila tc h fp . C r o s s pa Pulm onary D e p o s it io n and D e te n tio n o f In h a le d 5826 A e ro so ls. Ns fo rk . Academic P re ss, 1964, pp 147-85 5334 104. d u tch T, Demeon UCl.i In flu e n c e o f p a r t i c l e S iz e In r iis t e xp o su re . J 5336 In d Hyq T o x ic o l 30 172-80, 1940 5843 !0 5 . O u ts c a ':o - s :;y J M, C r i s t a l l l n l C# 1 X -ra y s tu d y o f f l h r o u s m in e r a ls -- 5 844 C h ry s o tS lfe fro m P ie da P a lo , ban J u a n , A r g e n t i n a . ! Dev M ln e re G a e l S fln o rc ) 5 S 4 6 32S 61? -f6j 1974 9SndJ 5 S5 2 106. M a tso n Dili D u st sa m p lin g to s im u la te the human l i n g . Hr J tnd Med 5354 I0 > 9 3 - I0 0 , 1953 169 (Ale r [ II T WAIT 5363 10?. Llp pw .n n c " Wpspl r sbi*" <l<ist u m ili In r. Am n il fly C A s s o c J 31 i 5B6S 970 ' 33? 108. U !. iia * * y E T o r r e s - f u c im l 3 , l o r o o |a s , fr w u a te r S a n io s l't 53'jU l Pulm cneTy ctranqes InciuceiJ b y c h o ! * s t r o i in g e s t i n end In h a ic tS o n o a ln i* 339 powebr in tire r 2 bbf.l.-. 3 fiev C it o Esp '4 n s 5 4 3 -4 7 , 1976 (S p a i 5 672 109,, ftSsrt o lis s i-tv : i I nn r s p o r t s a n :! s f e t i e t i o n . Man So l, r S 0 SRI S3 I n t e r n a fi.2u n s i. Sisy 9 ? ( sub; i te d t o NiltS H uncar c o n t r c c t Ho. 2 U )-? ? -O O I5 i 5885 fSO. 2cissselde jg>, O sa n n i i * Itewi and Et?c l u s i In o o f A n e ly t i c a l (H U w d s 5 3 8 2 .S:w Ss`oossenii S t u d i* o r F ib r e u s P a r i ! t u i s t Edposursis IHIEV {HJOSili 5003 P u b i teelScin Ho, 7 7 -2 0 1 . C on cin n e t i , US flnni or' li?. ih , fcriocot o n s and 5884 S si fe ra ,, P u b lic M ftfltin S e r v ite , C e n ia r o r C o n tro !, N a tio n a l 5885 c o s t it u So r O ccu pai Sonai S a fe S y and Kseth.j US f i s i or. o r S s s rrs i l i s n c , 56tt H c s s r d i S v e l t is i ions,, and r ! * u S t u d i s s , 9 ? ? , 66 pp for SS90 I ! i 0 C r U t ir U o r a tlerocKiisoried S te n d a rd o . ailicsip fto n ? . i-rp o stirst io 5 8 9 i is b a s o s ,; D IK j i i b J i M t i o n K o ,, HSM. 7 2 -3 0 2 , HocstvS I l o * SSd0 US D a p t o f 5393 H o a liii S ic c a tio n , and S ai fa r , P u b lic lis a ! tir S s s "iic s 0 Itaait?? S e n rlc o s end 5E94 H.vota! S la clth M i t i f t r a t l D n g NatStural in s t i tu t f o r (tre jip a t Sonai S a fe ty and 5305 ts a s iii, I9 7 2 , se co n d p r i n t ine.; I l o pp S8W ? 552. 8!?$Siirt Haeo'saainda.i iis b a s t o s S sn fisrrt, 0HEK SHiOSHi P u b lic a t io n Ho, 77 5290 S09* U {n c l fwvcl j US Uopt o 5 k lt b , E d u c a ti on, nr; a lfie re , P u b lic M u si i h 5902 S a r v J c a 0 C e n t s ? or D isi.e sn C o n i m i , K i t i o n o l i n s t i t a t * fo r O ccupai Sona 1 5002 S a f e t y end d aaltSr, (078-, 96 pp 59 S9 3. Eceiifli'y SC, ic i* S , Titn-rt r ss f>A, J33 E ilp c s u ro i o in d ir s i r i e t i n l c 3905 i n V e r s o r i t e c a .(m s a n d s J U s . P r e s e n ta d I t o f o r tir e t e e r l c c n I n d u s t r i a ! 50C iy g ia n e s s o e le is o n C o n fe re n c e , New ( f r e c r r s . L o u is iene; May 2 6 , 1977, 20 pp WCD 2 fo H '*f* -r c n s K*--. ^.cero n e La L I r r t m ic ro s c o p y o c ; : e r o f lirs rrs -lis e s s a m i J t . , , im i t a t Sons, I n A s h e r IH , d r a t h Pp ( s d s . i t S yirp o s! tim nn E S a c tro n M ic ro s c o p y I/O WCD 001212 i AU : M U S T DIMl- r o f ( U c r u f l h m s -- P r n c o e d fn is o f th e H i r s t HIM O f f i c e o f S c ie n c e Summer 5 0 !7 Syciposl m il. Hood a n il 0r>> A im ln l s t r o t Io n , o f f i c e o f S c ie n c e , B ureau o r 5918 B lc i o l c s , B u re a u o f D r o p , B u re a u o f r o o d s , 10?h, pp '17-43 5 922 ! 6 5 . L a n c e r SV, fto h l AM, H a i t i M5C X 11 m e n t iills Mc S h i r l e y Sll Ife v ie u o f 5 921 c u r r e n t te c h n iq u e s f o r th e a n a ly s is o f f i l l e r s I n t a l c . I n A s h e r SK, G r a th BP 24 I a lls , 1* Symposium on E le c tr o n M ic ro s c o p y o f M lc r o f lb s r s -- P ro c e e d in g s o f th 5926 H i r s t HDA O f f i c e o f S c ie n c e Summer S yo p n stu rn . Fond a n d O n to A d m in is t r a t io n , * 5V27 o f f ic e o f S c ie n c e , B ureau o f B lo lo t ic s , B ureau o f D rue, Bureau o f B onus, 5028 J07A, pp 28-33 9 3 ! lift, lit ffr a c t o m e tr ic p oarstr te c h n iq u e -- E le c t r ic a l c h a r a c t e r is t ic s o f th e 5932 d i f f r a c t o o e t e r 0 In K lu o 4IP, A le x a n d e r LE* X-*lla y D i f f r a c t i o n B r o c o r t ir e s -- Bor934 I 'o i y c r y s ta 1! I na a n il Am orphous M a t e r i a l s , a il 2 . New Y o r k , John W ile y and 9 Sons, 1974, pp 330-3 5 ,4 1 4-1 935 IS 7 . r t a r l l n Epo P r i n c i p l e s a n d P r a c t ic e n f X -lla y S p e c t r o m t r ie A n a ly s is , ed 5041 ? . 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' i w . u o 'i A , H ifW x x O ' J o h s r l>, Aiqm an i V e i'la b il t y Sri q u a n t I t a t t v a 5V7 ta a esu ra m n ts o f a J e rs ifS tie rs u s in e I r c r o n ic r o s c o p y , 3n A s f u r IM , C ira th PI' 5971 d S c c Syipos 1ji.i on S u e lr o n '" Se r n s r a p y a? S I c r o f l M r s -- l'r o c s f iil if lq s o i th SObf f - r i A S S f i c s o f S c n n c e Surraner Sympos l,n o . F ood n n d r i i r AiSusnl s t r a t S o n , 5>U O i c s o S c ia n t , B u re a u o li S l a i u i j l c , b u re a u o f D rc:5s. b u re a u o? pco<fsB 59? P7d= pp 52-59 5AJB4 622 C r i l s r f o r a Hucowaendnr S S c n t U r . .o iIc c iip stiim A ! E s p o s u r * o 3983 C r y s it S U - n * S U ic a , l * a fci3 l o t t on *> IHEnSl) 7 3-8 2 0, oc& rl I I * . Mi0 US SWJ 0p$ of K siih a E m e t t lm , and SSelfare, Pub* Sc H ealth Sai-vlce, Centar for 39UJ Dgsssse C o n t ra t, M e io n e " I n s l U u t A fo r O c c n p a iS o n s I S c f e t y n d lle s lt ii, 5973, 9B<< 823 pp 5 993 123. la n a u tc CSJ,, C r e O l* Js A p p l i c a t i o n o* a - r e y d i f f r a c t i o n t a a n a l y t t c a l 5 W p r o f il sms c f o c c u p a t io n s ! h n n H li, Am In d y q A s s o c J 3 2 < i52 9 -3 0 C97I 0303 S s n tu s ic c a ,, C r e b l * 3 ifo ' j i n a t u e u d o 4 r C n a tio n o f * | s n d t r s U U nC0 2 b jj s - r a y dS f f r a c t io n C i n c i n n a t i , US lia p a i i f e s l t i v E d u c a t io n , a m i s ie jf a r e , 300'i P s . ilc J fs ltfi S e rv ie , C ent-sr f o r U ls e a s a C o n tro , iic f in n e l I n s t U iif e f o r *0 3 0 Occupt1o n e i S a f a t y sn>3 H e a lt h , 23 pp ( l i p u b l f s f i a d i 0 010 J 2 5 . HohS AM, . e n t i' AMi1 d a n i l i | es t l on e n d q u a n t ; i a t Io n o f a s b e s to s ln 6011 t a l c . E n v ir o n H e a lt h P e r s jie c t 9 3 9 5 -1 0 9 , 197"-' 4 W .W S c h o i* JC .Wy* -st o c t i e n o# a u r y s o t l Sa e h is t e s n i o; ! s v i n U l c 5021 b? dSifarantlal th a rm a l a fio y a S , Ih a rtto c h lM A c ta * * 107-204 8074 112 WCD 001213 WCD 001214 i At c ! - i i f s r o m a f t 60211 1 2 '/. i t l r k s L S , F a tc m l if , 11 ( r i c h JV , J o h n so n t i e (le a n t t t a t Iv e A n a ly s ts o f 6029 A ir b o r n e A s b e s to s by H -re y D i f f r a c t i o n -- F e i s l h i l l l y S lim y , d e p o rt H o. AIJ6030 AO;)753<>. N a v e ! I l's s r .a r r h L a b o r a t o r y , 19 /5 6C37 I2U D e te c tio n o f A s h e s ti fo rm A c ip h lb o la b in e r a is In C o sm e tic Oracle T a lc , 6038 S o t b o o H o. 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Am J H o e n tm n o l icOSS SecSSui Tfr 49s 1* -2 9 , 94 3 6061 335. dem ent JM, 2 tirit.a Id s KJ F in a l W e p o rt-- I n d u s t r ia l lly o le n e S tu d y on th e 6062 G o cjya rn e u r T a lc Company, Number lin o b in e a n d Ml I T -- R a lm a t, Neu Y o rk -- Volum e 0063 I , C in c S n o a t l, 5iS D e p t o f l l e c l t h , E d u c a tio n , a n d He) f a r e . C a n to r f o r O ls e e s a 6C55 C o n t r o l, N a tio n a l I n s t i t u t e f o r llc c n p a t io n a l S a fe ty and H e a lth , D iv is io n o f 6066 S u r v e illa n c e , Slaaard E v a lu a tio n s and F ie ld S tu d io s , 1977, 79 pp 6069 J 3 2 . D ocient 3 , S h u le r l*s l a i c D u s t a nd I n d u s t r i a l H y o ie n e S u rv e y -- P ly m o u th 6070 ttiib h e r Com pany, C a n to n , M a s s a c h u s e tts . C i n c i n n a t i , US lle p t o f H e a lt h , 6071 Sd u c s t i o n , a n d trial f a r o . P u b lic H e a lt h S e r v ic e , C e n te r f o r O is e a s s C o n t r o l, 6072 N ation! 1 I n s t it u te , fo r O c c u p a tio n a l S a fe ty anci H e a lth , D iv is io n o f H o ld 0073 S tu d io s and C lin ic a l in v e s t! c a tio n s , lin v Iro n ra e n ta l Inves11 ctstsons d re n ch , 6075 1972, 85 pp 6077 133. dement JSI, S h u le r P J, A lv a r a d o PH lia e v a l n a t io n o f C o n t r o l M easures I n 6Q7d th a U iihber H in d Mam i f a c l u r I n r A re a -- P ly m o u th H u lib a r Company, C a n to n , 6079 M a s s a c h u s e tts . C i n c i n n a t i , US D e p t o f H e a lt h , L d u c a t1o n , and H e lf E r , P u b lic 60(1 H e a lt h S e r v ic e . C e n te r f o r D is e a s e C o n t r o l, N a t io n a l I n s t i t u t e f o r 6031 O c c u p a tio n a l S a fe ty and H e a lth , D iv is io n o f F ie ld S tu d ie s and C lin ic a l 173 TAIC I-1 t r i f OllAI-T in v s s S I< ^ t|a a s c I n a i ron n ie n t.j 1 In v e s ti i< ill ons U ra n c h , 1973, IO pp ti&S'j iS 'io Sspcrt ni3 Commi t i c i r h r e s h o ld L l n l t s , I n P r o c e m lln ijs o f th 8 th SSS A m u a l S e fitiR i- j C hi C ir o , A p r i i 7-1.1, I H i i . C i n c i n n a t i , A m e ric a n C n n le re n c e OOSs o f G (W rnsM R t I n d u s t r i a i l l / u l e n l s t s , IV 4 6 , p 5!> 494 233 flwshe5s i t o l i A d a p U r f a t A p r i i , J941I i M t l n r o f t h A m e ric a n 01395 C<Sft#rRCf* o f Got' =rfirji>nta 1 I n d u s t r i a i ily r js a n lJ s Sn D a i r o t , S ic h io a n ffli C S iiit o n a t l AwarScen Corei a ra n c e o f G o v a rn m o n ia l ! n < i : s i r ! c l l!y c t o n is t s 19-18, $29 pp i 03 S36. T h y is h o ld LsraIS V eU & s f a r ( ^ " A . i o p l a d s t tir 2-ltte arm ai S e e t ln r o f -ito Xtm A m e ric a n C o n le re n s e o f o va m u s o t a l i n d i i t i r l ! NygSan,, R a s h in q to n UC, iO S Say i - 5 3 , sV62< C i n c i n n a t i , A m e ric a n C c o fe re n c e o f G o '/e rn m c io ta l In .-lis t r i n i s c a liyg U nt s t s , S 902s pp io * ! ! ? . 53?. ,)o c t;,n n . a t lc r v o? T h re sC jo j i i Im i i. V n iu e s . C i n c i n n a t i , A m e ric a n <1513 C o n to ris n c o f G o va rn m a niaJ to rs u s trto .1 l l y q l e n i s t s , C o rw initt on rh rt,s h o l< l d i t i I t o l i V a lu a s 1 9 *2 , pp i7~9V OC25 023. P o r r o IH*, P a t t o J i , Ho>;>s M S r t ?B*.socofilsSs I n ih t a l e i n d u t r y . 4 1 2 3 m J ile !n te e o o i! etesii se f h o r A J i S O W i , 13-12 529 139 rs s n H jr c U 4331 it>s-i8!-5O C 0 59-57 (fin* r is t te n e r ! 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B e ts Ei s ira i cE t end P e tro le u m 6 3 2 0 Sn (piosa f i t "bCo 397?: pp I 261 fit (5322 363 r a le s S o a p s i * a n d P y ro p h y 1 5 O t , p r e p r i n t tro ta 8915 H u m a n o f d in e s 6 3 2 3 S in a r s is V s a rb o o K . US D e p t o f I n t e r i o r , D u m e ti o f H in a s , 1975, 7 pp WCD 001219 till I'A IC H U M HUAHT `fr t' we- Vt* > & u l-J , / > t f i fS t*J W S* fr. * *> y Si te w s . h J 1 i? * * O S M 8 ) It JJS J W JO 0 j? *J t 0 3 0 0 W )1 S i " P '> IO ' o TJ 3 3s *< *5i3> - w * 0t<1 y 5 o. c* yo a 3* 3 w # W3 I ?; *% O * iB *t c--> , T I L 5' ft *> Cat* t-j *: vi ft v5 f t 5 i i K* 39 jLs-> fi?t 8 ft . 1 3 i1 X y A ft *- w ft ' 3 n ft o co A* Wy 3' o i o g Sf 1 r:.> oM 3 ** i ft ' ti > *?t Um r * WB C? r ** n 3 U t 3 JA A "l j ft sr 3 i >a C--' Wl $* S' **r g ft %m \ tfl y * % B o r ft w. r C..J t+ -y 3' 9 IH 5 V) r C o cr *. & 3 r-*> ft *s O 5 * .5 O) ft 0 3 f> 2* * i 3 -5 J fv f* U ft % J c 3 fr < ft ft n 8 r 9 i K (A IA r* V * <* uo 5 ft & '> j*r te 1 m r R*-' 5T **fc f # 0 rf-tl* % t o f -5 *> $ ft ft 0 e*i & ft Zf * '< o* tm Wk O V O *f S B V) V mJ B *< ** 2 5 I* o < ft 0 !5 * & `Q ft c;? y |5 W ** > ft O 0 # ft r* `1 i y a "i J 5 i-- R *;P s> r.' 2 o 1 3 1! 0 T 3 fit 0 9 "1 c ft *5 y K 3 * ' f 'i O m yL *n o *4 '< ft .T 0 0v ft fi' *rt t= f? " A o 3 "i 9* GB<a > t8J WCD 001220 FALL' HIHU UlfAKT 'i l i Am anta.oes t n ii iM & igvantrtP cs & 376 fh u re c a fa w s n d e i! le s ih o d S s s iin p S e , i D e e p e n s ? v s 0 e n d r e q u i r s s n o P u lS y *37? H o**yr, H is Tint s p e c i f i c , s in c e any p a r t i c u l a t e t t o r p re s e n t tha Sr :4 2 1 9 i n :b s n s e m in i M ill in te r fe r e 3 8 1 ia a & ta J u a le t! $ C 5 ip tii r E q u ip m e n t. The s c a p i ! n r u n i t f o r t h e c o l l e c t i o n o f p e r s o n a l 3 8 5 a i r s a m p le s # o r l i e d t l m i i u U m o f r e s p ir a b le t e le d u s t h a s th s ( o U o w In e <i i S t io .: .p o n .-. r . . 3 " sas <51 A 3 0 la c n y io n c y c lo n e s e p a r a t o r i i f c a b r a c a s i f o r s e c n r S n o t h a 4 3 4 4 f i l t e r c a s s e tte . a 398 I ll f h a f i t t e r u n i t , c o n s tS v S n c s f e 3 7 -c ie p o l y v in y l c h lo r te t f i l t e r 4392 w ith a 0 , ft m ia p o r* s ls s * a s u p p o rt pari, and a th re e -p ls o e f i t t e r c e s s a ti , 65V6 i l l Ths p e rs o n a l sam plnr pup0 C a lib ra ta c i p e rs o n a l s s o p ltn o ptetp 4 W 7 h o * flo w rar, b * ria te rm in a li t o an a c c u ra c y o? * 5 * e t th u ftC M B o m is d f lo w r a t s 43W1 e f 50 ? J liis t s / a lJ S E f t * . Ths p im p Bust be c a l i b r a t a r i w it h a f i l t e r h o ir ia r a n il 63t><? f a i t * ? in th e IS n e . *4 3 3 A 4 Ob ib i 1 te * r w * * e i r . S a l S iir .o iis its r . 4401 S ets S t o p w a t c h , MOV le i S c e p b ii ih s t e r . 413 If5 f is s ile MM weicii'-nij p e f c r t r ih m f t ( 9 ) A n a ly t ! c a l fcquSpiaenl, a ait c r one to n e s c a p a b le o f R l h id e t a 0 .0 5 mo 64 20 ZXOCJUllUl 6423 < cl P roper e l Ion 0 $ M i t e r s . A l l t u t o r s m is t be c o n d itio n e d end u e i chart 4421} b e fe r u s f . P la c e f i l t e r s in a tie s ! cc t u t o r b e fo r e n o ! chine-. 6 .2J 5b) Srfi/'j 1 ! ni) Hc-qui re o ic n t 5 6 4 3 ii i t ) To c o l l e c t r e s p ir a b le d u s t r p e r s o n a l s a a p l i n r poop 9s u s e d t o 6'531 p u l i K i r th ro u r t & c y c lo n e p r a s e p a r a t o r a n d p o l y v i n y l c h l o r i d e f l l t a r . The 6432 flB S iiir h o ld e r 5s h e ld to g e th e r b y th c y c lo n e b ra c k e t end f s i l l r a c t l y 6432 connected to th e o u tle t o i th e cyclo n e p re s e p a ra to r. A p le c a o f fls r .lo ie 6434 itib S n c is used to connect th e f i l t e r h o ld e r to the pump. F ast th e sam pler 6436 t o i h s JapeS o r s h i r t f r o n t , a m i s t a r t th e pump t o drat-; a i r th r o u g h th o 6437 sa& pJer a t e flo w r a te o f EM 11le s s /m ln u te . A f t e r s a m p lin g , th e f i l t e r 6436 c a s s a tta s a re fe & u ve d from th e c y c lo n e and s e a le d by r e p la c in g st?aJl p in e s a t 6436 b o th an ils, 644! ( 2 ) K i t h e a ch b e lc h o f SO s a m p le s , s u b m it I f i l t e r fro m th e seme lo r 6 442 as t h a t u s e d f o r sa m p le c o l l e c t i o n . T h is f i l t e r s h o u ld be h a n d le d th e same 0444 way as th e sam ples, eucept th a t no a i r sh o u ld he drawn th ro o r h I t . La b el th is 6845 es a b le n t:. 644J ! c l S h ip p in r o f Sam ples. The f i l t e r c a s s e tte s s h o u ld he S h ip p e d In * 64411 s u i t a b l e c o n t a in e r d e s t in e d t o p r e v e n t c tu ia rn t o th e f i l t e r in t r a n s i t . 6450 Id ! A n a ly s is o f tianplas 6454 ( 1 ) Ef th e o u te r s u rfa ce o i the c a s s e tte f i l t e r h o ld e r is h e a v ily 6455 c o a t e d w i t h e & is t, c a r e f u l l y s s u b i t w it h a m o is t p a p e r tesraol b e f o r s o p e n ln c I 3 WCD 001222 Wimar o f f S a lci s a o p lis , T5>a c o ^ f i c y o f iS h r e tiO f i s i92 er# n ?.h* floSdy ciiirnij fjaiii prQcttirsv and a*iar thy have &&en usml iia cassetto to ninlMtz* s.*mp!iI'tAlrConlH Ii;'!mIli IlwitfAoInT. DisonM Uia p*)ir towni I u ta <*_ 0-' IT k. J M >t 5 J* V I fc. > ma 0J am *3 3 M fe.j e b <r_ 2 5 e n ur X 2 JZ c '>* mm in cr u w mmt mm m* "Zmi 0 c -> f t e cV w IT C li w *3 <9 <3 A w> cC V a yj b V s 3 Mr Vi c3 S 0 t* b > 1 0 S > U O *J it i w w *rt C* 1 e X* 4J w) x 'S 7 mS? m *i C O rl V! C c U 0 ft i vi k> >5 O 1 on -- i . 4 mi t t f t f .3 IS S 5 U? J c ta V *tT. ; & m tat Or* `- i 'S* Ht* 0 g 3 * S* n *o o * 5a w C S fi t U X* >'5 X 4.1 3 -j ; t %? mi m-. %. $> A l ta jo p * W 55 * 0 <9 E ifl trt X Ci e X yJ a 1 b co *- > r* b CW c* p M M i. S* s IL U mj ta C1 Uc c 't. 2 * *9 >.T3 O C U *> Tni n b *> Uc e 91 as c x r. 3 ft 3 m ~ -, c u A' 9 9 d -f 3G t '* mil 1 fj d .-5 o &3 : *1 3 4 -: ; {* 5 N 0 <a " s. > .y C* ta s CP} ft W 0 V (i *3 0 io tfi <l f tf u ffl a 3 a 3 .U 0 s U . *1 mZ in . <* 3 c*9 <r P* f ' > f-> V ** t 0 >. X- c ? > ta o r. < l w ft rrl ta U V i) i !*i ta (V c ftr ta ta U X U c t- Sa O ta un mn i -- > t 0 ta c i Qs & 0 fv '; *y S s ta 0 s i ta tfS S) a a J< >> ? <n 7; `j c w 'ta ft oi c l. JZ 4 A i C 9 ft 0h. CK Xt ta C ft O ft c i rn es fi l 2 ta ta io X 2 * *e c t-j Q ,-j *> ta ta JZ b . P te t> e ? <j cV 5* 3 5^ ta !.. S r0 M in i V iao &o JS u * 9 5* Ci W U>3 ta te "3 vtf ta S w Sn ta f t C ft ta 2 --4 i 3 ta ta S a Cr C C ft V *0 c S 5 s? a r*> t t ft C f t ta ta HB? C-=3 tT- va >* * & t- -- X E <t f c 4 mm * l T S >4' e U * ta V. C C a* Tm C le ta U ft mm r m ta ? T w AS C *> M ta . ;o d r=* V c *a C <T y. Ci m l a X V, Ai ? w r _ i l S U V Am V* *3 b, a to f l c i *> ta df * ta t-. a Va s*ta c; 3* ji la 3 r3 a i l 5 ) W f 3 ** C V. 'C e C .C e X o > 31 3 w i l vi mr Sf t Si n a3 Pb w V. U f* <M V 9 j , t-' r' \ m ta Li * S> 2 - m C i ita C C=SJ *0 *9 S c?9 > a U f A i* M `i 91 45 w> V ^1 ii ; 'f t ex ma r o :o 75 3 C-1 ib 'V "9 b *0 r' & <3 b o rg ''P w a f5 3 wo c o n s c i. & WCD 001223 WCD 001224 im a - F ilis i ostFr rKpsnciant on th e typ e e f in s tru m e n t u se d as a r ife r e n c . fiie c h a ' co o f <iVb c u t S b re tS c n in s t n a s e n t w i l l d e p e n d l a r l y on .her! th e c a l I h r u l l c n I s t o he 60V6 p a r t o re d . F o r la b o r a t o r y t e s t in o , .t so u p bu b b la m e te r o r s p iro m e te r is 6 iP J r e comm endili, a lth o u g h o th e r s ta n d a rd re 11h r a tln q in s tru m e n ts ., such as a w e t" 6J9J te s t m ater o r tsry-cas renter, can ba used. ^O: in s tr u c tio n s fo r c a lib r a tio n 1 th th o soapbubble m eter fo lic I f a n o th e r 6502 c a l i b r a t i o n d a v .c e Ss s o le c t a d 0 e q u iv a le n t p ro e a d u ro s s h o u ld ha u s e d . Sine 6503 th a f i o o r a t r lv a n hy a pump i s d e p e n d e n t on th a p r e s s u r a d ro p o th e s t a p i. 'n g 650e ita fiC e , in t h is case a p o ly v in y l c h lo r id e f i l t e r s th e pim p must be c a lib r a te d 0503 h i la o p e ra tin g K ith th s re p re s e n ta tiv e f i l t e r s In lin o . C a lib ra tio n o f tho 6500 sa m p lin g t r a in sh o u ld bo p a rfo rm a d f it a p re s s u re o f I atm osphere, 6509 t&> a'h l i e th e p u rp I s r im n ln it j c h e t i th e v o lt a n o o f th e pump b a t t e r y t* 1 th 6510 a v o i te n ta r to assure adequate v o lta r e fo r c a lib r a tio n . C h a rts th e b a tte ry Si 65? 3 n s c e s s a ry . 6553 lb } P lace th e prew oighed f l l t a r In th e f i l t e r c a s s e tte . 6536 Ic ) Assem ble th a sampl 8no t r a i n a c c o rd in e to th o o s n tif a c tu r s r 'S 6517 s p s c i SI c a t io n s o r a s shown I n F ig u r o H I- 1 , 65115 in ) T u rn on th e pump t n d m o is te n th e I n s id e o f th e s o a p h tih h !a m e te r .b y 6520 i s e w s i r f th o b u r e t In th e soap s o lu t io n . Draw h u lib la s up th e In s lf t - u n t i l 0 3 2 f fchay a re a b le t o t r a v e l th a e n t ir e b u r e t io n r-th w ith o u t b u r s t in g . 6524 I e l A d ju s t th e pump ro ta m e te r t o p r o v id e a f lo w r a t e o f 1 .7 11t e r s / o l n u t e . 6527 { f l S ta r t a soaplm hbie up th e h u re t and measure a lt h sto p w a tch th e tim e 63215 i t ta k e s th o I m i t ib ie t o p a ss th r o n e d ,i inlnlm uru o f I l i t e r . 6531 <cj> R e p e a t th e p ro c e .iu r e I n I f l a t l e a s t t h r e e t im e s , a v e ra g e th a Mi t 9 S 3 .jstr# a S 4 d s e r to ty t i w t i w* r e q u i r e d i n r t h e s o e p b n c e i ie t o t r * e r s t h e C TS ff e. T pj G. o 9 V '!> U s * ta 0IA s9 k s? g S C 0 mm4 <D 1 U *3 an /J i? U e c JT w --J o w a c U w* * --i k. VJ if Ot Cn iJ I*.' i s j s 0 c '<n V t* T 3 .C * U w si 0U a F 1*-. w, *3 < C 9 =i V> r * l A *A e ft d J W In O no C w li n C I.M S lu e *-> , c O rt >=, fi Cl > J v ii 0 g n CT S A c* c 3 * fr <a i t. C w sj Q 2s 4 Ad t1l O JE 4f 0 U iX l s e e A '* S AJ A T ! vM a: tj .O V ; C; i 3 ; 5 ; i * v tf if i - tf> <? V c r aJ c0 * AJ a X C IC tn Si % u a <?j Ad r.m g I1* * c <J R M A X ! A4 U 0r <9 *: i(i vV? AU a V C ft *yc Ad Ce t S i U m w> C C w) si A *a VI k Ad S 0 1< fea a U s U as Ai Ai W Oa S ta 0i* a x: 0A * G C w TJ i. u3 e-4 it .ri 'eu $ \3 < O T C <c *> tu /a *) tl Ai p !r 0 .1Va C C 2 C Ad Jff i M Ai 0 VI f? 9 *- G 3 '3 0- E r . At a S J v< C V t i O 9 W* c 10Z1 d f* .Q 3? OM OJ f je 5 P jL 0 0<j V & * '% U 1c > fi V , c rt e i 3 Sa # ivJ % 6f t ai * i M U ># > 'a ana c u '0lu U tu ie> ; 0 0fe i> U ; v? M fe i C <3 f* g U ( > n tu 0%. .0 U a 'C i ifl ,i) Ift M a@U Hy : ;3 i S a *0oa 'V i C* t f i f<A t f l n S I ts i i MA 5 S 4 *> ^ 3 a OU jf* 1[I''M*** r V <H ah J -:' 2- O s iO II* 2?* C <V fA ir s & 'Q mM V CS fe; Vta) lu a 5C <a &2 c ej %i fea T J C y m . a s O (c O tfl r* o ? C ? rs ?*. a M 5g O * tn *! i <S .? t* 0 i n i? K # |" K ta V uc i a ** f-a 3w c t , f l wa 3 cd i f mi f rj (J m> * > ?3 c f* r -- b W C 2" e C Bv , e <-" 5 3 V S u< t ' ^ of Se V , fc -s (W U5 I f i lu <3 !u d it : fe? -- c ru V r fe u i C* O V w Su A * < -j <* i? 8>2 5 3 r 5 ^ - c- r-> S i .0d 0 g 3 > 1 >? : a fe) 1 I * m U m ^ 5> f-- MU Si. 8 1 ks 0fv * c J >.-- v : i* # g p r*> p r - r * .5in t f l t f l S S g i ti 'S WCD 001225 WCD 001226 B .7 C .C -i t : r . y >* (A K g 0 E .i tf x> v * *Si * c s H ; c n 3 ro u ues Vw. f: t: oVt U, U. *-.Ta i<t XTJ _. t--nrz 22y. Uj `S tun;. inJ Cr.*,5 U "fi MX tjfj -L H L*.`, -JJ HUJ H<*f s - E <2 mm UX i V i 2t1Si pP3 < J *- g 1in < * sn J S <a%-SnU, U. & IVeiSvr3fi 0 -hU-; e* <D-30j i 40-} rtf fc K V'.'r 3* V <t ?5 w(K . ? c V. <6 +j3 3*itl C<ki*?l3*)) 19 2.4. 'O iEfTl O it GC<a ft V S*tg; i 'w * ;s *i:* e--?i 1 M^ i*ft U0 , V':? * *C1 ee , 1- V) 1 j5 S Vi ' d 33 fa t c l s ie n na.Atcur.atJt WCD 001227 WCD 001228 66,26 .l i: h i . .1 iHiAi-i The p r e c i s i o n m il .Ifcm '.icy of I b i s n i itim i it.is n o t been determ ined. 6n30 The com bined method o f s e le c t e d a re a e le c t r o n d i f f r a c t i o n -tad 06J4 m lcrouiem t ca l a n a l y s i s p e n u lt s a p o s i t i v e l<tantl f i t a l i e n o f am ghlbole f ill e r s 6636 In a sample o f n ixe d n ln e n k s . v is u a l ch a ra cte r! za tlon o f p a rtic u la t e 66J6 m nrpholocy, s im u lta n e o u s o b s e r v a l 1ii of the s In gl e - f I her s e le c t e d a re a 66 j J e le c t r o n d i f f r a c t i o n p a t te rn , and f ib e r ch e m ical c o m p o sitio n can be road a t 663U the same tim e. However, t h i s combined method r e q u ir e s e x p e n s iv e equipment and 6619 e xte n sive sample p re p a ra tio n , fhe time re q u ire d fo r a n a ly s is I s a ls n long. 6643 A pparatus 6045 (a) Samp li n e Equipm ent, 6647 The sa m p lin g i n l t fo r c o l l e r t i o n o f p e r so n a l a i r sam ples fo r tha 6647 determ ination of a sb e sto s f ib e r s a sso c ia te d w ith t a lc dust has the fo llo w in g 6A4d com ponents) 065") III The f i l t e r m l t , cons 1s t J n o of a 37-mro membrane f i l t e r , f i l t e r 6061 support pad, and a th re e -p ie c e ra s s e t ta i l l t e r b o ld e r, 6664 ( 2i A c a lib r a t e li p e r so n a l s a n p lln g pump whose flow can ! d ete rm ine d 666b to on a c c u ra c y o f * `jX a t the recommended flo w ra te o f i 11t e r s / a tn u t e . 6669 (b) A n a ly t ic a l Equipment 6662 ( I l Transmi sslon /scan nl ng e le c tro n m icroscope equipped w ith an 6663 enerty-d l sp a rsi ve X-ray spectrom eter. 6666 ( 7 ) Vacuum e vap orator fo r carb o n -c o a t in o o f fu se d f il ia l * . Id/ m a ih& ito Mis? mBSjn f r i a i n tH ss s p o s a i f i l t e r i s f e t i n r in n m is r . T u rn h a MC H ifS T UII-T J 5 ) C e ri an t i p , ') nsii 1 le r v jt h inri I ma n d ia m e te r "'J ^ < f r* * O r- p a . f ^ p a * o a Q i > . O n u 1 n i n ) g* X&a). *C So Iti .c r_ .cc uc so. ASij 4>C-* i0> *> e Ai Mf *4-!4*. Cc A4 0* Awem jnei Mv0> A <$ ~ yc*c> nttWs ** oM? .m a A * c u Ac*1r.<K JJ C` fec.;. Ve*i34* A*n34i. G. fc & r*) ^3 Uae*1 rr> c c(A r a >$ bS ** Afii Ai rJCe .Oc <At9*i or t*s fi ri uM0*. C*5 A--i* 4*3 ra & JS tm5? <ue-r-; -- Swi fialr3. wJ in Awus4a <ra*.S a4 g e5 AT Cc* ls*wa: ti du' Ae*4 la t>f>; Sf ri* .i2*na9 a 21 c u 1 X, ne y 2* e B** igj Ai -o4 3 O1fi .t. ?* A* 0 ej Vf#*i* <*l <g? V > (A a . <1 Ai Ti&0-, 24So2Z>P r'} V o<03 ?e>1. c? < r** *a 3* fo** ?<3 S '5 fa g WCD 001229 e* & 4 t**) C % <s r* 1 <* *J J o j ,6k, > -fe <% W w M c* * *b) ft* O 5 * t* t* & e * . f'. c-k pJ ^ii '1 o v \ t tkJ T w fj C * cw '* o -J t' `j 't tr` e > j. 'tj j c *) O- re w j Ci CT o) o re o >s o tt p ft' 't $ > 3 T A o ft rt r*.' S.;-? O *1 7 t w* c-- t f p ft ft . St iv ft C C *s :* w' C Si 5* p * BP *-> y ft Car T p 4W. 8 fe 3 i t 0 i? y o ft Pb 9 i* i ft t>i o c. "I t w r: y t" ft fft y CM 3 O (V i? *o*v n & ft $J CM ct * fj & p* 3 y * &> & pv 0 fi c f* a % f . i 1 *o ft 1 r9? .*> t U **? ?*p 0 ts* V m * t CO 5.i r < <* e> ft Z f f >fe .3 **> W S> i $ 3 r* * e? ff U>* O li Vf % .3 P 0 ft tyi ft t> p e*j tr > n o * 0 i* *7 **i , e- r* y * * ft CT 0 ' C ft y t z: 7 e re & S t o a. o > t U i 3 C / o S C 9 f* y** [0 K- y ft F a ts s B 3o cM * a a3 ft o 3* 3 f* *r^t a S ' ft y (A p C- s*> ? 3 < 9 3 WWO t Cvr 3 o n ti `C & ** *M l ew t-T * t 2 `== fO y ft K * 0 a B y r o - ft *9 3 fV y e- f* r? V ; v ft IA o A "1 w R n K "1 B 2 *5 s 3 c r*r ZT o u e r> a oy 59 p 3 JV 3 CJ> & y H* S t * c " 6 C-o y 0 ti 5M y 3 8 w r > *> >-- p> i? a -- f- 0 n> p e ft 0 1 0> ti 23 2 t H K r*r 3 M 3 IMX y ft r* ft y 9 5 ft < ft ft 'C a >1 p r r* Lfi ft 0 K a S* # a> ft { ji Q C C-T M f? O ft s e 3 ' ft y <n5 & 5 O 3 &i n 0 re *** ft * y a ft M r /f f 0 ft *c *"Ti 'i r a JV 3 * 0 * y 0 ?* 3 T> r* CCD < r O V> * oo o c-- 6 F> O y 5 ft M- fit C J n p> F. _ a ft ft ft c-e-* re t 3 fi <r ft ft p-e *iT K P i -> r? y 90 r 3 M iS* f t 1 re 5 & n 3 y 3 * n. & ft 5 ft ft ID p# 9 -* ft ft (A < 3 3 n3 1C. > y? 0 3 t ia V) "3 0 . <* ru -- P bM y --C 0 ft; t M n *v, 5*. * -- T 5C n P y V a V n re * ft S' H P eu* tu y ft 3y "1 a 5 O 1 <* ft a ri 0! y X o 3 a *> e c- o Cr w t (A W c- a "t re c m J;* B yVa ft ? ft c** fi * D & - r 3 3 QO 5>? 3 o ft a w -- r? 5 y Vi t 3w B 3 < Q "< o a- px* & K CM t M re V 'S r ia 9 ft r N 3 o ft ft fe il 3 Pt .ft 3 3 f* Ci 4 ft o tr:> ft 3 3 1ft e ** 0 ft '0 p I 'o U "S3 u0 'C B i re -- r? y 3 a o o ft ft o n re r re po w r* y *> Ut * c*i ( e ft C3 My ft rai ? VI * t * 3a *> a y 1 ** n0 f? o r n '5 ft i r Cr* ft ft ft a 3 p. p & i! 3 f*r ft *3 PS 1 s S ft y J c* OM CW* i? s+ <*> IS n 3D cS MX t ft y ft- y o oa ft. M r " fjcm I TC rv i? ft ft e 3r? *0 y Id re a P ri ft a 3 il ,5 t ft 3 w 6'<Ck ft S 1 fir LI t ya t.* 1 & r-- 0 -i 0 t-- ? * :: V > 0 Br Z i V) A { 7 3 ` a ft -1 CO & .T r* t-- ft & IA Or* t ft o S 1 n f' W fit o ': y 3 i'-' a `K , I 3 t ?* ft <* l a B t 9 cm & f id* *< *0 ft 3 "i n ft ji ft C M y t'V tm> <=> re fi O * X J "1 C2 nN g S ' *> fi) 3 w p> t 3 n ?c 3u y ft V t w CM y t* IA y Wy o Q 3 r re t C M " R ? 0 11 tp; f? a a 0. w "i 2? > 0 y & 3 a WCD 001230 'AI.C F I `T DlfHT *5 P ia c e fo u r H m m r f i l t e r s In cowsreiS p e tirl d is h end s n ta ire M l P serfor Ml s r o c h M le a t ene l y s is sn th e f lh n r s d is p la y ! ; th s fVOiccusMtn <uu->,iTt 'S dV0e;a?* JVM1uruCo30m-3- g cL k,; W A0n4. ftj *ecu Ml ; TC5l a c .8 iVn PM Is OO .4c **s0u.. 'Stn s&. 9 <** C fMi V4? MmKtmmJ.* &ti fsPiJ K{Se;> je wSJ `5 S0fe1 *ui!2uUt--une?: (UC<m5t U 9 fi -*4 eo o -un w Mft5. gtgn u V0uc. c 0 o </> Of4bc3s*)i a;$K.51> 'S M' *OU8 C.-4 <C4 fc! o1' g. 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I ' SlHi.HT specSrum on th e v id e o d i s p l a y . The e l m e n ta l r a t i o s ars co m j.a ra d end th e 7555 f ib r o u s s a ln e r* Sis l( ie n U i( < l by c o m p a ris o n w i t h known s ie n d trd ., *71*1 <`j { S S ia th a i d e n t i f i e d f i b e r H i t i s I t b ra t a d c i r c l e s o r a l l l l ' M t t r 789 rSiEn-js :c?vsd on th v ie w in g s c re e n . 67PS 561 S e le c t e d p i c t u r e s o f ml c r o c h a m lc e l a n a ly s is andA>~ SAB) p a t t e r n s e rs tttfiass e n d s t o r e d f o r l t s r r e fe r e n c e . fc7P< <7> H th e r c o n c e n t r a t io n s a r o c a lc u la t e d u s in g th e a v it r r g g r i d 795 jpanSno er& e a th s e o u n t in r f i e l d a re a . At le a s t , 10 g r i t ! o p e n in g s o r 50 &V?6 f i b e r * s h o u ld !> C o u n te d e n d a n a ly t e d f r o c e a ch s a m p le . D im e n s io n s o f a t * 7 (?? t i t # g r i d o p e n in g s s h o u ld he m ea su re d u s in g an o p t i c a l ml o re s c o p e . 800 5d) C a l i b r a t i o n ant? S ta n d a rd s j3 O f A ifc h o -jjh th e UiCC s ta n d a rd s can h e u s e d f o r c a lib r a t io n p u rp o s e s , th a h u lk e a rn vaicscaSs f r o w h ic h t a l c 5s u s e d Ih , a w o r k p ie c e I s a m ore r e l i a b l e s t a n d a r d . 80S T h a r a fo ra hulfe q i > n ttti $ o f th e saq.pl,,d m in e r a ls s h o u ld be o b ta in e d and 000b c h a ra c te riz e d . CZ0& 6H I <ei C a l I b r r a t lo n o f S e a p IS n n T r a in s The. a c c u r a t e c a l i b r a t i o n o f a s a m p lin g pump i s e s s e n t i a l f o r th a c o r r e c t ttS iS I n t e r p r e t a t io n o f th a vnium e in d ic a te d . The p ro p e r fre q u e n c y o f c a lib r a t io n 653 f.s (tftp e ftd sn t on th e u s o , c a re , a n d h a n d lin g t o w h ic h th e pump i s s u b je c te d . 4614 Pueps s h o u ld be r e c a lib r a te d I f th e y l.ave been s u b je c te d to m tsuso o r i f th e y *3 5 5 iia y e ju s t been ra p sS ra ! o r r e c e iv e d fro m a m a n u fa c tu r e r . I f th a pump r a c a iv s s 6-854 h a r d s a t e , o r e f r e q u e n t c a l i b r a t i o n sa y be n e c e s s a r y . M a in te n a n c e e nd 63?? c e ll b r a t io n s h o u ld ha p e rfo rm e d on r e t t ila r sch e d u le End re c e rd s o ' th a s o *E ltt k e p t. Id I r s ir ln t f l s |irt>c(*<SirRS5 artel a j t w th a y have hean -- <--C0LJI 8, 0fc-i Vi .V* wy .Cwc v^~ c JymZ u *usuw3 W** U tV<4na0? lu Q 3 Us/i Vae aSr M vOam V-* c SEi !Ui C U 2C 0 ca <*; itt-* & 1 % .uw51 50 *; 0M ? 0 Taa Xe2 Cvj n* c 49 *<V*3c 4 y fl V iLi c 5>y M uVVV|rafi *3 Cer ac za ? cGgA*' 5styu, Vct te0:j <v> AO> --V: WKl <X!CCa2,i Lej &UCa? S2 a5 *,,5 .aO 8*.i ir O cc fwtm* >* AeNJ) C* O h0. vv. *05 !s * etf>, 6 W ts\f? fi Swy *6J1 C* 4Vi*f1z>:f Acc1J* '--SUn-ViJ "wC vcV; Oa*i b. <# Ci fSi X*O* *(yV05J# f-bfVil $QC V tS0M = b 4e* IM:i* 443C5*. (A VSefi!l J CS *ml <mt 3 CUui <V5t>.1.j J0-i; te l-J S yji 5 aw >b9 J5u* iO <24:1 C* ' H 1C> 45b2a Wgra 'mI*fOt *> mVyWI V'S0) * aXsZr C1 * trii 4U 0 a <fc5 aCiW! VJ a 5i* T*J --5y; W%J V"I 5<'. 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S (Ofi ? y e* (fVCAt n<b*-5>* i . <fJl *3 C fl fCi f*Ji5 fti CZri 1*3 w' li f* S =% ry ** fh s*, t <-> i*"%$ * w 3n f>iJ fM " b SjJ sVa, 205 m Ri *f3Jl te.. *0j *bC> isf .v> LC & 2fi. :i* f>i* 1 "l V** ffW ** 3 ry tfM* H*3 nO S 5 *0 s ta w K nf*s ^ni 'O 3 O S 7> fiSf S 3 a ftW-M> *r9Vf Osr as*or On s SS &S2I * r a s s i n the WCD 001233 i f Al-C H l i . i r DftAKf t f g t'> b 'o is is a?,V i p ! ti In l i t a r a a t 25 C and 760 muittl A*J* j*u<C43 J%*-' Kl S' vrt ? * if 0 f^jr e a Cl ? o Is * => it) ji, <0 Ko /vi#i c s c* ft ej tu Si c <-4 fc 3 4J y, L J5J 7 <3 .5 1) o I fe <c S C 41 Sw 35 WS V 5 TJ e. yc 0 V. fe ' C< V a r> *> g 4 n ,h 4u tfS O r. *<** 5 1 V f l j *9 -S & * tfi Af ,v a-.. * Ar* Is t 1$ -V5 * P* >C1 v\ M 1 5 <5 s fZ iS *4> J2 A# H ira !--: <3 V w. g <0yJ ? or * i >5 ( fe jK i ti* # * & v <5 <m ! V. i:J 0 T3 ** 3-i fl T !V9, >S n 3 t' w. * f d r A# > 0-1 <3 Q Si U t r-1 <9 Vi yC fc t e *C Al 0 .I Wl 3 H gt 1*1 S h Vr. & * <\? 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U & ISfiL SAM: f t DATA SKgST 6P20 h S'etlostnq Stems o f i n f i i m t l o n u h le h a re a p p lic a b le ?.o s p e c i f i c 92 t p r e d ic t a r eut a r l a i sita i I be p r w t < l j i n ftha a p p r o p r ia t a S l e j i o tita M a t e r ia l 922 Sefaty Oats Shan* {SCSI. 92'i Thu product d e sig n a tio n i s in s e r t a d 5 t* bloc!: In the upper l e f t co rnar P23 o f th f i r s t page to f a c il it a t e f i l i n g and r e t r ie v a l. P r in t in emper case AP2 l e t t e r s e s la r r a es p o s s ib le 5t s h o u ld sa p r in t e d t c r e a d uprsefct w it h th e 60 tr sfseat tu rn e d sideways The prorfjct d * s i relation i s that nao a r cods 6952 d e sig n a tio n sh le h appears on the label o r by uhi eh Sha product Ss so ld or 6959 SsWs`0 by -jiRplcy y e s. ha r e l a t i v a n u m e ric a l h a t e r d r a t in g s and .ay so te oe a n ts Q925 e ra hc* in t e r a ll ie d by the r u le s In C h a p te r V P e r i B c o f the ~t5OSii 6951 p i A l i s t U o n , An S d e n t i? S a t 3on System f o r O c c u p a t io n a lly H a ra rC in s Met i r I e l s 693 2 The co e ptn y i d e n t i f i c a t i o n tssy ha p r i n t art i n the upper r i g h i co rn a r i 6532 des 1r ed. 6033 t e l S e c t io n I . P ro d u c tio n id e n t 11lc t io n 4040 The iSssnosfacturc", n&ir-et, a d d r e s s . ;nd r e g u la r and emergar, cy i o l ip h o n s 69-iS rn is b s rt In c S u d in e r a s eodal re In s e r ta c i in the A p p ro p ria te b o t s o f 69 <'2 S act Son i ,, The company l i s t e d shot; i d be e so u rc e o f s t a l l e d ha c tup 6 9 ;,i in f o , - c e ilo r on the h e te ra s o f the U r k l s l co'/ared by the KSUS. The 6945 l i s t i n i o f s u p p l i e r s e r who 1s s.: 1a di s t r id u t o , -s I s dj scotircgnO ,, The tr< nana 69-i6 s h o u ld be th p ro d u c t das I c o st I on n r common neme a s so c ia ta ! w it h Sha t a r l a i I9& iCjt s i a ) y-asil A | t x m s t O : S j U *' -jo u Az j j j , J . v m i j G > I ' .Y}?S SS **A W3 "S*j fUe tgr4f %W- P`O-*4 1a) SSO* %W5> fiT* f*. ewS> rW,-.- i$*"> % G*- * Gt -t--0>- Owtoe! 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'; `Tt w *< O - * T3 W h S ' O S ' i.V fv * V -d ci . <5 y. b w- IS * 0 " -<'* H fii f-* (f: S ' f t C*` t* f t t - -* SB -- 'S 03 S* r t r tr\ u - 8 un o <* o \jr. ^ 9 4 >v f t : 3 3 r- ft --T K *CJ ft fv w ta .u * i *> " - '0 i>j *0 n s? 1 --- o^ Jki ; P. W & t** Si <t 'ft K A o :t ro *i nj 3 W1 **? fc St =-* ft r*-^ ( i & lM r> S' * w g < n^ 0 ia m s Q r-' m r* s r^* -- n it r rr> ec-o 3 'a .** x: m2 IS Pfi 1 m (/> T. H i> r n WCD 001245 s*i*!?i i?>}f-ra* to t#**U W f*t `*4 J g **Vy4J *< *o > to Vi * *1? lei V* S** t*<* *n a rw> f> c'V HS9 % S2 fCt1' 30 ->- t `iS> S5>* $ K" ** : g **> ite >?* 3 nf*t* f> fr--i r> # s *O m " ** n -*> ?& V & : j "--v1 !*9i pH H* r*j f&w* g a 3> 41 > cv # iN? '..V * * gg *g?" '1 "* CH1 s CJi r* 5 *2? s 0 ?:1S9" ft = 9SXT myf>t\ 6> SI S' ft w 54 ft 5 Mt W *te?l JoC A? jsj, Sn: *$y\ Cj-Si ti V n ?S?* # f*sv 8 -1 r> S s*J * '> 3? O. ? gM -P--> V T 3y-* *a<*i *& #gn* >* 8 ?&RT MC*B S?*)v * ** *h' si i m >i, 5b?- Ili: **9?; V"f. ae i"; `*--V, fi`"V. ri**" > t rf R 'j > 5 5* B '_ pV- *5*u Mr ' i r* -> ?/. s- eTsoK *\ss> -4 J<15,,S r" s n *.?f2t i I II ru? * i. WCD 001246 fALC FtH'if DHAFf gC* U* * < - 1 iu ft! fi 5 v4* V, O **>** sa ** H -S? 3C * p S?!SJ $ *^ a A -s* il 2a *s * f* Si * W hs gta W X . % O i f'ii w w <* ^JsV SC h*i m o l 5 $ :i: V e %w{ ^ V '*4 S -V3 ,,s#. N i *- * A- A 1 9 "A m *Q A a C s a*, tier AW fl 5* *- ft ** S n% ft A- 7 was CA " AWa o M <V *w St A. A. -- =0 r --H S - A 3* U *4 A# .V JU '* ) ftr ft P ^b >e A 9- * I e ^ ^ a u xi U 1u lu M ?U *--. W <-- U A -- O ' m3 W rj* J !* j "-t & * rv * i% i* ~S S 'v *-`> ? <? O O :--- *JTV *-*V r- ** afa AK A V? Ifai* *< X 4*; Ci ** w lHi ici Cl 3 s --K b* iV O J*, JA ty> o s w s* S *x WL' ! t fU %? x.--> W A * *w *u *-' o ,*VS 9A b K W A O * * OI <AM W i* <;t V c *r n* J rrr v o O A i . f* .*% o o 4 9; . V T w , *" S i l iV J .va M o u- -- i y (J SAM. 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G, B T> * ui O -X V *A vJ> = *> *>> t-J 9 te V fU o Vjit 1 3 o 0 C5 W*j A f * S' . 3 w ^ ^ 4 * S .' i-a t^* fy. ;c? r*- f* M J* f *"$ 1 K n e e9 s* -i -i w n mf -* 3KJtf 0?=: <f*ti' r? .*; ri K* i VsOi t- ' .VX* * 5` ii M *i ?s 5S f e M 5 1 s s r" Q % i- C C UJ m *-- M Ci w rii s . rr. -H as -- O mc 2 V. > Cft a * MS c -- rzsrr. >- y i 5* -n m s -- JR 2 "i *9 i> t* r* s: n S c? a? rr, c yi ui Si *ft w tfl 2 4 2 m m m * *5 > a B T1 X r-* 1 Ui WCD 001247 TALC J**-*' *) * v, i la d W faN >fcnii^ i yII**** IS i i * 'fci. * a i A "*' f^ V v - \ \ ^ y y\t^ ^ 3 - w " ? 0^ ) tta rc fc 1979 By: C e n te r f o r O c c u p a tio n a l and E n viro n m e n ta l S a fe ty and H e a lth Prepared fo r : D iv is io n o f C r i t e r i a D o c u m e n ta tio n and S ta n d a rd s D evelopm ent N a tio n a l I n s t it u t e f o r O c c u p a tio n a l S a fe ty and H e a lth SRI P r o je c t No. 6455 SRI In te r n a tio n a l 1611 ft. 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'j - * 0 ^ t3 0 I** <+ * S '151 *-5 * 9 W .1 -*ti: 1 w _ , * ir't *mur>~li*p*'c-*(j "43 VK : to 5 9 a p !*j>o ~ ^ U- i` o ^ w gf i ^ Sri g t f i b p *"j`s i f* t <V' fr-1 Sri v fr V * s a a w C- - > u % I u g *> o S? ^ J f * : C ' r i I => j& c * fe a ; -'*#r3^ *0 *i-*tto. '-ss?''Ot -t '3 0 ' ff*-a O (t t' 35 BSV3ES Ci'iSULTftfSTS 7G Ea srSitl G ra b a ts T L tU*w aM va New J s rs s y C7Q34 S3 S r . S* H. l a r d 33' je in s a n n Joitnao.; 3 Stefflaarch. Fund*V.Sor. M B ra fS S c k Ma .te r soy 0 890; Sr Jahn X. Patera 87 H rcard School o Pufeiie H e a lth SC So6wse easoehoc-stts OSI 13 91 O O ro en WCD fZ l S5S=5 SS 8 g S S Ii**fatJJ<>.--** (rl"* <SJC-I --ua*MR*l-` P4- >m OrtG -->J&fjfe ^ a . 9 os mC- # ifcts,* g ** $ -M* S ii;a:ti lfiicl"-*!`ff-i-vrlj_Sfel fO#i fe frwi 3& 5 ' s - * Si s S KCi (te ls ^ a f f? "*o m v ?Sb* 3> ** fct &* ,.., .er,.O "i g g S'ia st.Aa se%* Fa--s*> 48 TO y* . *3 m3t*g-Jf3?i~,^c(s) "j <XK S> f*> tv fi o fe *fr3->* O '3 8 5 su I s> * 2? 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S * * fi" ' fi % E efi>j-*. #r? ifi;' - I I r> r> s WCD 001252 e ss i-oo a o M CONTENTS A Basis for Previous Standards S7T B a s is f o r the Rocouacrwlort S ta n d a rd & u*&fcv` --G* OC - *Vf>r* W t*iJS Vfc VV?U> fe .%peJ; **Vj &rai A>%.i , --. 3 R g I mmg*gy ?< fi' iilr?lft m & o n,ri oo^w I-iIHa.(.o^"II 5 iC T T . iaeam*3?i~f) el<3cs S B232 Qr*'i ?5 tS K >7 ga tkS*53iMf3t:&**wt--it ?^Aflt Ofa0tn-it3)) J3f> 3*-G?3 *a?1 ?r^Bs e*1pr O 93u 5f3 m uMi mmS9M3 O ^>1f<v?I*i (t9ge*fO.icn^&*o3cP5^a>-tO^p"M^>or(Kf*5?>t*&O>nt.;-^'g3fe7_jge*Craa^-J**K*S(bOo2*i *-i'a**o*s* ryi*4 "0ut aC3 cfifriI te*i)>t3t ^*p1stcut 1&motHj =r0P->b^`<o3:O*-**>em3oaBi I f S TwI rvj c R a g Sa rn o * H 0^OrOt " or 1 U^>IULJ fue p& sss s .--tp O ^ l J f U i U jM (sj as (D(M* O) WffltMoBW# ol n n n o n tf?V{aV rSo> t>i w*i f*-i *r-* s*? 1 d) %)<? 15* -fefej 2 8i 5 I f3SrK*ger5-JVo*Vf?H?O3*t*9 rt?*ppn ' . rt 59 >**~ 3S"!8o*oc)? 9A neoi 7 2 3 3*f--t 9 <3 m *'Ps fPS ^J53- aor a *e '<pt?) ^tvftvi tro*r t- A3 Mitti n 3-i i 0-fc O-a IiT C wXt3*-- PC 0 &3Pl ea o1es3> IJP 5w VJ 3 > 6 K 1 U M o '3 *h)\ftfeK> Ofca si m 180 CONTENTS CONTINUED) 53 IS* VII. RESEARCH NEEDS 186 v i n . RgFEfiEHPiS I. APPENDIX 1 > Si ? !i m a A n a ly tic a l tettanti fo r m Tai 4spi rab Oasi) $22 3j APPENDIX U enti Analytics! Stefchct UH ?cr 3b,-.stoa I-'ibsrs soeiotsd tes Siti Tal. Dosi in Air 198 W TABIS Ai(0 FIGURE S m K5 46 !7P ill 186 3 * c * * ' . W - I * w w v - w s V . v i > * /:;.v:,cack -*i*- ' WCD 001254 40 M t i i w i U a and # S iu r s iro te s n n u rs lc . Tha recom endad stenderd in the K c g it*ffll H3m*it Cg & W la afx* 1BOsr? 1O02 J 1inci fl* J93* V *OO(CU#a* <3 2 mUi S COA <3Mvs>. 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I n t e r i n a s d ic ! fend s o r t h i s to t* l a s : 843 5 2 ) P h y s ic a l fflr.rea.Hnotio n -and e l i n l e e l t e s t s as o u t i i n a d i n C e i521 843 a n ti 6a>638. # t h i s s e tio n e x c e p t t h a t SS-rey f i l s a rte m n a tio n f o r w o rk e rs 144 o c e u p s & le n s U y exposed a t a v s re i; c o n c e n tra tio n s above th e a c tio n le v e l b u t 843 b le w t h e YSSfc c a m a s n t r e tt c n n e a d o n ly b s a c tio e v c i l c b l e v e r y 3 y * r s f o r th e 844 f i r s t 9 y e a r s ' o f s s p lo y p e fs i nt th a n W e i m i a l l y t h e r c 'a f t o r * a n n u a l 847 assassination s h a ll ba nads i f i n tb s p h y s ic ia n * * Judtgeaent i t i s needed 550 6*1 O urinQ e x e s is w tic s ts . sop). 1c a n ts o r em ployees fo u n d t o b a rs s y a p tc u s 1 5 ! os* p e d ic e l c o n d i t i o n s t h a t m ig h t bs a o a r e v a te d d i r e c t l y o r I n d i r e c t l y b y 533 e x p o s u re i t a l c s h a l l fca c o u n s e le d on th e in c r e e s a d r i s k o f in p a ir ia e n t o f 1 5 4 't h e ir h e a lth fr e e w orfcinq w ith t h is s u b s ta n c e . 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OONo>V K W1J0lnr*iir\)i*. 4iXj3i U0;. &"J t^c 4*f8i<3-o4*Jl 0 w JfC i>: i0f<93*1i <--sJi sSri *0 --*c0*c-1}, G.. ?< 3 PT 4(3? ift ;5H.-J-, W 5ms. is a en> 1'4 i-J Pi5i -N ?>*? 8 t 1: s ifo 1 1 S K2 t * 'S & nR i * 3 1 io i'O*U P fi f'* OiO>?J l* ft r T" K R WCD 001261 TABLE 1 BE5PIHATOH SELECTION GUIDE EOB TALC aap.i,r*M* G m c s a b tm tlm Oust asp irato r Type Approved under P r o v is io n o f 30 CFH II *7.5 *a/eu a i f 5 m q/cu m 5?5 n t/e v S i 500 mg/cu >1,500 mg/cu tt. o r e n tr y I n to a re a s o f unknown concentrations S in g le use or quarter-mask dust resp ira tor (I) Half-mask dust re s p ira to r (1 Suppll a d -a lr r e s p ir a to r w ith h alf-n a sk facepiece o p e ra te d In demand mode w ith b e lt mounted demand re g u la to r (1) F u ll facepiece hlqh e f f i ciency dust re sp ira to r (2) F u ll facepiece supplleda lr re sp ira to r operated In demand mode w ith b e lt mounted demand r e g u la to r or self-co n ta in ed breath ing apparatus w ith f u ll facepiece operated in demand mode I I) Powered a i r p u rify in g re s p ira to r w ith a f u ll facepiece end high e f f i ciency f i l t e r (?) Suppll e d -a ir re s p ira to r with half-m ask or f u ll facep iece op erated In pressure-dem and mode or su p p lle d -alr resp irator with half-m ask, f u ll face p i eca, hood, or helmet operated in continuousflow mode (1) S elf-co n ta in e d breathing apparatus w ith f u ll facep ie ce operated In p re ssu re demand or o th e r p o s it iv e p re s s u re node (2) Type C com bination su p p lle d a l r re s p ira to r with f u ll facepiece operated in pressure-dem and mode and with a u x ilia ry s e lf contained a ir supply U < WCD 001262 ( Ii a g KC<r>* u o4 .a.a. *iC 0 1 V. 4? 0w.i5(t .cvl V 5 ? ui tWo SI *(*0. a1 I:A*5J 4tft 3 V* 1 #a t (A `uIS C{ cor-: s'J ci U45 0 3 *$0 $* 0{ ** y 9fi>t jV6C*J K Ci <>8i ** ft) eV<: tw 0 ! u5. r <S5 m 3 f fS; s ha 1 c0vf tv 9 2 oi!i T3 6 1y $ %* Ja.V gj 0:* r. 1 s r--S*f$rc 3 3 i--a**; S e 4i rj VIj ,<aIc7* \3 .0 c rf<c? 1as i ohi <" *0 m3 Cat. e. fUS <28 Jsj *> .1a & 0 1 t? 2 *A* ua> v1i *?5 Jm * C* *mSV' V;>i - <? ** *f-ri?; *b1 5* * S m # * Va ... 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M. 3m Svi e j.0-i Z r. 5 V-* C 1V g 3-:5J a G 6K O 0 4 M3) g S* j 3 V<?4 M%1m m: s-. oa: 4> U 'rH 1 --1 U 45 *30 i` & %il ($o> ar* Wvjx fi* *?s*i s Uv <laJ C`i T5 3O1 A *- ai "0`J S> (J} is *`.afct VS*i **! * 46 i -5 8-j S1n 11 1 t15 >s*v. 3 r-> n s<M o pi ?4 1 cv g toc CO? 8S!j 8 8en WCD 001263 a iu r v f tl I t * o c p r o c i i t i i r r i i s a n d <af i : i a a d v a n t s a e s t o t h a p l o y # c f 8 !Wl a w U*}r. * II m !** * f5 r*. ar f if 1 m (TS* TfP < Iff o:f liVfrtXv*f* . uJ. h4 0pe* jVS g cS*k at" " * SS4 o 73 4* f 8 1 g* or O g i* 2 1 fWtj *:#*** j1* S ft 1 j'*7 fWt i-i g S' a* H5* f8t ft y .*lit*3tfi ii. % M1i 1` w ft >ar,;' t. ff 9 Q 3 1 "S tf y9 Kf it tr:.> wsf*jj CS <* frt\. <5 ct` ffi ft Hi fil <*: PPTi Qcfi, *"* 5*-* -1*s f1fBt d-d * wHU 4"* a; tV o fi f si| "iolSl <jn.*; a>tsi * 3 tcf-=t* O @ W w & <e K-l 12 EP'i i{5t <r*? re *s> vtnpi*ti>** <*) p<sa> .hjf Sii. Kesv >;a5 'S ft -sfst it* ft e. pp E--i*j eVt ( .^99(13i nf if 9 s* C3?*' a *- t* ft fct 3T *p i .* SWti;ji3 9tPji* f I *pf<n* 0 * ?r ?** #a <5 I #fOi., ft t'*o] <3< 1i3f t$~** ;-a > 11-i> fitf <* a pifcf*t ft *1 s ft 0ut 1 a fe uw sf ,5if*-ff* 1 -fi ft 3t 5* |5Q >fjvtn> tv g S' 5 '{ISu3 i``tf C? & Ci. m jy (3i Sfi..tJ, SiGV* Sat f0t. Q;; d l*i> ffi't-i:: T? fet (3J a5* te 59ti df .ut 9ft! Cl t* r? fB0> '3t1f**.> m * m &Ci-' gte i* 0S fHttfii `M*> >* 3o i>. 1.r.-. | H 39- <*- *% ;e3 j. if4; - &> ^%3hU' i* Vi tx* ( U5g1 U> t MfWt> s0e w SI S uS u i .(UUf Cm S 25 & s^. g3 i 9fg;-t; t*- I &3 *(_1 irrt-*-, n iii j * IS *0 s tft fjyt *Anr `iif*S* m "i n $w *r? &rn. c5- m f. 1e3 1 us ft (7 19 1 0, ft fi. 3%-*> #iJf* <1! f A fef i(fi ft iS3 *a ai?f 1 Hh fC.t0f, # ?S: Ua-i or s* ft 8 fut.j \a'p-*5 *i3i*?` afS isf fat c3 Cl ;>Vrt> aU: is 1 3P iaB fJi) ft* at5 a Vad $J%t*.-o; # S-i a*- ft 9 '"S Cfftt'-- It2 f yt >e. P &< aft'- rtr*s>** IS ii*. 8cS ft #"r-Sf rs i3f3 19fis&*tf> e ,g. fc*S* Sis ^5 it a r. e t-f* f 3 S' & * 1* {tCiK-rvJ> <mCSl df15t. tS- 9n s& ff5l 1ftif Cl 5,S)J e? f Ix>t s JFH?* '' 8 a cf ft `X3 B m@ if yti*t ft (K --1 'S r>*v re 1#4> ft f*t ftft* -ai Cf S-f'Xvt3 jtf*t ft a XCV*J a<t ft>. JrSt*` ft 3 vf*Ttj iJfJ.f fwS<CVtc:iJ ft tt# ft J <5 I 1 5*ir-fT> * <% MQb "? @tie* >t.+;i* v3 t* 9r">* 3ft 3 w* f:p^ts>* 9fm! e3 a (A 3a^ &** e:-ii ug Q ft B1 '.*e%w ft , mif* r-g % A ft l "fSt' ftl -: `It* cv t; <> mf>t*5 8*- fmftt3 & tsf* IS r> SC0#-i r. & Se(v/' 19 1 1j #fwt jy tioff (5? ' *' t;ifr i? ' r? 3 ft 1JUT. rf*tft jnw ?**a*#*. p it! Kt * XV ft 1 X^it1| tQtl 1 ?3 ti 1 (fS?r* ft s 03 a p? ** at s."U*1 tcf/ af e tl? ft G<fet<*X-<*>- OK 31 0g tw" X9Omfti 3-b 2 t u5--5* s fis. i<x 0 ft I 5 C*T. ft 3'J C ^W / s4' / WCD 001264 Sag bo bo n t a t n o d w ith in the s y s t a s . Erhiwtst v e n t ila t i o n oy stciM 364 sisieharqln t e tha o u t s ld s e i r s h o l! c o n fo ra to a p p lic a b le l o c a l , ste te ,, and 265 FoefeiraA GHr p o S lu t lm r c o u la tlo n s C o n ta a ln a tc d exhaust a i r s h e ll not ha 3*3 r s s i r c u l a t s d in t o the fetorSipl a c s , V n n ti lo t io n system s sh o u ld hi irtspoctad 348 a m a U y end ashaiS receiv r e g u la r p r e v e n tiv e u alntananea end c l nine t o 370 ssue's t h e i r soratinistnq e f f e c t iv e n e s s and M in io tu tn c a o f d a s ie n a l r f i o n s , 371 A i r f i o K in d ic a t o r s sh o u ld be u sed f o r co n tin u o u s m o n ito rin g o f th e e i r f l o e . 373 Records I n d ic a t in g a change in a ir f lo w msa aur aments and c o r r e c t iv e maesuras 374 t.Ss sih a tl hs !:sspS to g e th e r t ilt h a nviro nm on tel m o n ito rin g records^ 278 l.ii) C ffibtrcl o f S p i l l s and Las i s 386 `?Jis ssSoyar s h e l l a t sura t h e t o n ly p a rso n n o l p r o p o r ly t r a in e d in the 20,3 iwes's e n c y prccs-durca end a d e q u a te ly p r o te c te d a g a in s t the e tto n d e n t hozerds 333 shall!, he rts rp e n s ib lu f o r s h u tt in g o f f sou rces o f t a l c , c le a n in g up s p i l l s , and 384 r e p a ir in g leaks D ry sa a epln g s h e l l be p r o h ib it e d ! clea n u ps s h a l l ba 386 p eriffira sd &w t'*'uuBlncjo In unusuek c lr c t u s t a n c e s such as s p lit s l a r j * 337 aaM5t s o f t ! c iaey a rcaeavod by sh o v e lin q .. and care s h a l l bo t e ie n t o c re a te 358 m l i t t l e aflr&ern d u st c s possible Such cloenu ps s h a ll be fo llo w e d by 390 vesiSRjffilng t o r*ov* any r e s id u e froai s h o v e lin g . P r e s s u r iz e d qes s h a l l n o t bo 39 J assiii f o r s ls s n up. 394 i s ! H a n d lin g and S tcra q e 397 B ir a c S coitteet o f open sounds wit! t e l e sh o u ld be a v o id e d . C o re sh o u ld bo 3?3 eK3'rciiot! In f& rtd lin g t a l c t o m inim ize s p i l l s end d is p e r s a l o f t a l c dust in 399 $hsi s i r , T e le sh o u ld b e s to re d in t lq h t c o n t a in e r s . 403 id l K e s t o D isposal 4C6 K c sta c o t e r i e l contam inated w ith t a l c s h a l l bo d isp o se d o f In a manner fe f t J U* t to<*b t* 9 r> 2W ft 3* s f f r j {f t'-' G y. rt ^ c<* S t i V n ' 8 f Kit i -=j to & S3 B* . 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( . to to t 3 4r t * # i :' s* to; r*> ft w r ft 3+ P i # to f t ri ff Ot1of Itot * Tt> 3 St Sf rrri?t V to 3 *T r t *- V i :> <9 .T ri f t to >*. i ft -* B ` *.* 1j f t to to to rt ta* p 2 t - 1J t-! St t *> {; t' I * .2 18 ft * '* S f* *"* to & M i* (ft ; ; r t 9 f". til ft 3 to <4 r t i- to H& v s # '-j Sfe. t j . ? f 1*5* rc (* ft ft & 3 4t a wt 1 r :' fe TS 1-- 0 4 to* to vL? cj a ft' to f t a as ?, g o i t i? a 3 ST1 cv 1 tr 5V ;ri t; - t 1 <-!' o i. s 3 >3p |t*5 ft to tftf to? f t B >^* (3. in f t % A s ill V r t ft < 0 to n 3 1; t 3 -F ! s * ;** Si ria ft ft % (# l J#. M 3 * 15 fS JMJ f t fr t-? g ^ Ef t Cj r <* **. e=2 S K r 38 f t X y t r 3 ft> to 3t- 0. 1: s. to r t > c (-* Tf f t to to B* - f t ft r t are ft T `-5 f i i 5 Od O i & ?; r t P c rt m i C u 3 < 8 o -: { f CL 3 f a fe 'S* S*' f a ,' r t 3 S>* t * t U ? to ( n Vi ri to fc S' ;- rs ri* t Cl *- ft ft a 5 9 1-..-S tee to t-a o 3Vn- to r** ; <: 1 ft *a< 3 ft tof t 0 B 2s fi 1 VI t*> tf y V t fr*.1 f t t S* t* r t vt V B :i ;-> * 8 R. rt c* # O' Tt 8 5 * li ii to ta 3 f- 3 (i ^ V. ft _J 0* !: ft -<* t & rr < OS to j 2ts K* \ y tu tr i to N & ft it 3* et K IT* \<3*? Ori >>=< sr* jri* 3 il* c * ir-Vt>* % to * * f t * t: U c -s r t av " to fft t5 V t: ta t? 3 ' rt 5 <? `fe to a ft - B ft Ci ?L i1 u r a fi f t ft 10 Ci t *o to to 0 I et. n to 5 t f t a : N S ' A to t tori* . 5 S? i 41 * t 1 *- >-' 5 nr u IX s ta j . Ifl < r i' G> to VC o S f 6 f. TU3T f t .T if* -< S to fe S> 3 I t r> 0* C>a to rt* ** cx U* & 30 tri 5T3 to R n r> Wl rt' 0 c* N ft f i *U t * f t n rj C" o; 3A \ >to 9s 0 e s o 1X 3 . (0 q 3 tc* i to f* is- 3 SJ f t f<* O f> to> n WCD 001266 t * S u it siepi A h a ystie o r i t u r in o ajnd. B a ca r d it fr a in e . \ %* '* % ,) * . (7 s'*f i m X5u*i* *34foi. .i1 'fJfl 4.' C%, S f* ^ s i- * s: s ; e C ? " t6* ' C* fX J'i 4# Vi * X ' X Oi % 1 I tV. X YJ , % S-i g, .n J ^ 4CpU.' tj f} t t' .ti tSii 3: o fi. 4'S# V*1 ,0* i; 'Hsiii f *) 4 *e1 W 5r? J5' <J K< ai<3* <rg Se* mffi Sr3 *.4 3, * e-', n; .Q fa *c--*c O <> ftf, &* d j J*S V, r ! #> 5 f i %) fr%e!* Ig 1 St & S ; * 2 * 1 s;> -imj] 4*5* <*ts a a T * <^ 3 . ! * 1 ` 3 i i ; * * i l ; l a V "\ si < is ? M **? * ). Ih 1 C vt .0 3 SS tit a VI w y I s. rtti JB. * i 11 " I ISs? r 1 i 1 I h ? $ O ? t3 *** s"tp I s$ to -:J O ^ 2BV s a G. fi Si fHi V> o < JQ % e \3*> a 5o fM IUP* Xo 0 Q Tr fa 9s0i a * H fS oc lo SAi s H e?* rj **3 I *5o1 & r 1 ! a> i T V e 5 h </) 63? 9; m Q ( e 4>* S y* 8 s- - ^ * vSiI O bfol a h; BVa* SS Oa N 1I sI I i iflf 4 m ywf <3 Hy O I 0 43 3 jc" V 3 -~< % * `3 V 11 ^t t*o? 1 f Bj ^ . P^s . o> * fu r* y * S -T ? ? cf?- C S e c tio n e - 453 WCD 001267 1 \& wgw g * u t U 5w . JVl 5 5.1 8) C i g c i jsv y M $ * r.l *j S j Ui Ui S tu ys > <& i e: fi! h fc> ft U O I `V/ Ci! i . a 1c 9 ij\f i f t f w ? & ms c i ft o o &e . m %c * 5 S* s iK* g i? CV5' ft* y S : * et* 5 % 1 * a 3ia * mvr 11% i* ]i w t -i;. S S v ft m 6 0 9 . N r*. 9t- * -- S *V Sf J- fe tw y i* cfi *h e * - * * . ^. f e SP .t * .S 8 nf \ TO 0 *14 "5> ,* -'/ t i &a ft S ' ri* y G : S tn |k C\ v; tei te ft - i f --J SVs * f v o (* r v t $ w i' c S C ' f i If ? J 1te f i fe S (r ar> :: t. ;-v ^ S 3 1f t -- ft T? te M : ; P I 0 3 Q. 1tt) i r S fi) T ^ C tft 3 *0rv 51 iti 1 1p r fi ft R if? S Og fir* ;i B 9 <3g t~> f* e*.. f t 5 3 (0 1 iK r* O G f# ba ri- fc-s c 0 *.-1 1 iZ (0 Ci){ > fi-* i H <& fi Of 6 ">4*h (A * fl 5f t V C c-t ix s <& ft Jl fe s V, * fi *r t I f t C*j tf< t> & ,a s O & 5 9a S fe fe !' r o ft ri* a 2re* # tt 9y XI K { \ o U 1* r ? c C*" f t a **, aIS G 0 t o 1 " a hf. - o w t* jS- 3> * fi fe * r 3* o Vj w> e f S 93r> O r> p o tv R eO 3* , fs H f* *3r ? O O ?? - a e<* i ? **, 9 e*& ft * s ~ C r - ; r; c*-* o G rr Oj > * < fH y (S" J S * i\ 3*C* > e P i> f t 3 GO 85t-* o fi* ft 3 yP 3<j tD CL c - G s ft ft te* r ? ft te* CiC* Ci yy cf t < a - i H !> r > R My t W T> O u f t G> j E & y i &) a f * c-- > o PT- .0 a r n < oJ j <!' in 355y r 3 0m PB > * H te- o 0c* s > c-- ? 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M tt f i ir if & rr 5 C iO 3-* te-a o il rt ($ te 20t* io* B Ki C C % 5 s * te* ft te 3f t s e t 3te* f t -- Jy ft ft *; y 05 0 o>^ i* fV f t 3 *0IA ? * G* teo i 11r> . * s* er G U &> 8 o *x S0 s1 1 t! c*> v . WC1-m*- Mo5*5* * *. aa**. (w3 3es* m te . S or- 3- * fi* >= 1 f 1 f a Li n g i 5r* ta * * te* 2te E 5f t C M fr>a 35O P S te* J g Q f* U yG oS " V te 3_` ll' *0 K *3te ca f (3S)t t o CA w te - ? r> t " r. te- c * te* <5C r <{ ft O O --te tr te e t- ftll) y fi fe a & :. *> gw ii > is fe O te * . >-- ft- a y$ T* . v-- 5B NQ? SB ro E-- W o r> ft 2 & !> (fl n y t 'S G* d t N W 5W -i te 'i IA Wft a w ? fe te- t*j r ta 0(3A2) o . e? >-- a R (?> K S - rv O '-i 3 C te; r te te* f te a ri* rv C rii CL ri Q 35: V M 9q o * o 1t t ri te r 3 ft ft ft r? fi *O** re y c*) WCD 001268 *SD fOue a ?& c y <s B CT tjy ar* T3 % g fe S i c u fi. ? uf s 23 uo mLo /, i ) X O0 <? go AQ\ a # arj I v 3 as Wi . teoi 1 .s* * M *i * I & ->*4 G 1 ill ^1 r- f j X 8 Ift i *5 >ft ss WCD 001269 m * r i *Ni?g>aM| h s *S 5 ,v> p s a J j s e p *o u a 5 p j p u $ 8 j , a j * $0 M-vj 5 % ff t Gl S ota n **S * ffef t K l* 8fe t>se. # t* P u*. iT U* 9fev f8u S8 -- Mi 2 0 Ul $I S1# S >a1> i * ** p* A 2) % ift fi- 0 $-=' (S' t* c* *4 fr c% *3 ft. V$i c V i >; .5 T- r Crj fe ** *> C<A-2-*'* f* 0 ;.; fi' e 0*' G. e? * fe 5 rse*l te c5l5 fi- (/I c' Pi P* wr c* wVi fi* " i S" fe V 3 e fe , ft Q;>. JX fe t. 9 if) O I 'ft. s* 2' V-5 af i 9 a 63i' e. *4 w fe *$ >* ** <* H" i =1t 0 f A fi * :* (*' S tt. 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A ? r f^ 'Si i tt e* g j *. s g; rKi'* i' 9 A sw V S0; tr fBt Cl P >f?1 ? fat t'. r&w 0 !3w* m 3 0. {fri C*L** te 1SJ it Ui! sS 1 Vt * fw teo* g V;> ft -t* 1% ft -6 tf*t fi? i. i 3 ft ft 'r?* .--aB-: aa B S !K-- &j i ft S? G ft* "T ir" "%, 1 S- t-> e> 3* O y>* W ' * t: tt ft s* s & O 5) C**` m & So ft fi *Si fw*. S M y v*> > mM t> fi m -0 0 a ib fe n V fe B <CI s ft % 0 * fft f-. f^e* PB txa a 9 ft ro ''t ' S iiv ?rf 3* i s 6-. S 0* Hy w >eT* 5* n O m [fiir fi* H' c < Gt C <?t _ tr VV? 1f * ft* ft! N3 < ffet- fe ? Ml fe 9 fI#i* twe IiV* r < fffet < f* A fi* -ss t ft k"i ft s fe- ,1 s w '-~> QJj 5ev Afi- fe X t* fi) V* fci> e? 'J ft Mc fe et fi S s <ys> tt (e). ft r fil vr n. t, ft ft i'-<. rTi 0C' ce--t* ft *5 3 "C3A fe r **J hi . rt> 3fi* & o*> : VBi M fi' CL C3 (T te -f*b c?1 @ 1 a r? f t fi* fe 9 t r? 0s ffeti a fyt r> lf*ew 5 s e WCD 001270 jteputcti oR~3t~lurga and any sK trsp olistien beyond uorfcpiacs eiiposurs i s not 577 wslrmnfcado I I stan dard 2s Sntsndad te s (9 p r o te s t o q e ln s t p o a a ib ie a d verse 57 h e a lth a f f o o t s , such as puiaosw ry te a lo n a , c a r d io v a s c u la r d isaosa end 530 acnpslisonssv o ran u lan aa, a s s o c ia te d w ith exposure to t a lc * C?l reduc ey e find 333 r e s p ir a t o r y t r a c t I r r i t a t i o n due to expossara to t e l e , (31 red u ce the rust; o f 563 th e ctov#tlep*>it Of cancer frets eponure to c sb a o to s c e n tan laa n ta o f t a l e , (1 SS5 be sa su r& tlo by toehniquas th a t $r v a lid ' m i r c d i c i u t ; sod c n l l M l t to 5 3 7 in d u s try and g o va fn m n t a qaacles enci (55 bo a t t a in a b le w ith axis t in q 533 toehnology, 500 T a lc la sorfceted In powder for and v a r ie s in p a r t i c l e sir fro v a r y 595 seat's* t o a g tr s u a iy fin e i t i s used in e v a r i e t y o f products; in c lu d in g 592 point erel8 peper robber end p l a s t i c s a s an extender f i l l e r or- y 593 s u r fe s s agento In a d d itio n , t a l e i s a i d e i y used in c o s o e tic p r o d u c ts.. 594 O ccu p ation al exposure 6 t a l c d u st o ccu rs d u rin g the n in ln q , s i l l i i v q 595 fp roosssln el bandline d istrib u tin g -storags or use o f t a l e . 593 'lit s v a i l o b l e ev ld sn e* in d ic a t e s th a t w x rte rs o c c u p o tio n c lly axposad i c 593 t a l e way d b v a lsp pulaonasry le s io n s and nonpulsonary oronMidHes, Sore d a ta a re OC-D ns* Ss*d o o n cem in s th e e f f e c t s o f r e l a t i v e l y pura t a l c end t e l e found tiia sd SOS u l t h i t s ssse e ifi.sd a ln s r o ls on the pulmonary and o th er im portant p h y s io lo g ic 50,3 systaiss such as th e g e s t r e i n t e s t i n a l end c a r d io v a s c u la r system s* Such SOS steadies B5tcuJ.cS s l s e sKsftiae th e c le o rcn ca o f t e l e a d n in ts t re d through th SOi etr?. aad itshslafel r o u ts 3. Tharo i s a ls o e. need fo r fu r t h e r c p id a u ia lo q lc 605 a v a lisa tio n o f th e consequences o f o c c u p a tio n a l exposure a t low co n c e n tra tio n s 3C4 o f t a l c oo w a ll ec a need f o r a d d itio n a l animal s tu d io s o f the c a rc in o g e n ic 07 p o tw tIsi s' both r e l a t i v e l y pure t a l e and th e ore coonorsly oneoentorod typos I7 WCD z i p j s s s s g * H A j S j d W W O VJ p'i'-.il & . * SI s p w > l ! * C n K I K W i O l t P 9 t l d w H 9 / WCD 001272 j s a V * ! * * * S33U5 * 3 pM " s i s s m o ij p s f a p ` d o o m s <ST4?WJ*k I 0 - *? p i * V 8 |js p *i uf paB4 s f u m i v i p m a t* n jq pioapeod a?' av'^siOjauAs qyssa* *ugiu )*p o si pinoli* ipotesi. sr* to Ui sn 3 / 1 LU c if fe Ui b O MO E 3 " M if . *t*4 03 s s fa f t U il CT 0 U *' 1 1 e? (ft 4 2 fa O i 04 -% ?> H fi 3v P 0 C l -0 S 3 1 M OJ tn 3 f t e* i : ft J S 48 CJ W A i 5. O o4 Cr S i Cm `o* 9 l CT M ISJ 3c < ft at i V# D ft CXC u I K 0 0 J o VJ ft MJ fa m *l f t c fa O 3 o4 K* 8 U fa 'fa fa 0 u ta --2 f t 3 fa E cn o # 3$ p< i3 fa ft 0S U ft 3 fa $ w ; J O tn C Oa o T3 <1 f i fa Ua C3 w J f t f i 3 04 ! O fa 8 G. tn ft o <8 L 3 -- 3 fa fa S 0 o 44 4 0 46 3 2 XJ c O <&c a m S e ft ft 04 3 r C ft u fl ft C r . f t X3 fa U IA S: 4 S ci m o ft *o X i fi o0 f t <* J 3 f t fa fc* O c l O ft c o O mm fi f i fa ft 48 5 fa iJ ma S <-* i, a is> . A i 4* m * f t fa 0 a * h * 4a5 0 ih Ori CJ u tn K $ fl8 b a 0 fi D C 0 ift o4 s3 B 9 1 O O >S fa *) a o A * Q *S4 a mO ft 3 ,c 7> 0 / 3s <J* f i W& oo fa O & 4o O fa % v Ai i V W fa rM X O 3 tfa a tn O fa t t C fa 6 a <4 CB 3 O] V0 cs u 0*5 g-- ori <0 fai 8 g ori o f t **0 so G a *8 48 u 1 <c g 35 c*3 V fi*J Ci o ft 3 c 3 ce fcl t* 0 * fa f i M (*J o Ot Ui 0 > o CL 6 fa CT ri 'S *i J B *-o K. 48 ) a U ft } o fl 0 -*i j u . CT f t O m< X i ft X C ej fa U a f. 2q 5 <U to Ai & G, B A JS i fa o u s *a u P B < j 48 a T 0 5 O (4 0 o MS tj c m i* u 3 c M S ci 3 m to l * c '3 o *5 IM o ** o VJ cs o U K3 Cd A# fa u S *0 4 O fa fi u :fa s r-ai i I *4 O e 55 5* S SU ft A ft V o fft w 3 o 80 fa i o 3 <8 -4 o J 0 mm o 2 Q * 5 o. ti) J * W M 0 3 w# g c 4 {y 73 fa .C2 *; o u o4 c 3 4 -U 1 9 fa 0 fa <4 e?< o> f i -69 * fa rtj ? te il fa fa CJ S fa g , VJ 3 *=> ( O . H3 t I *4J B O i fa 0 & m ) J 1 fi 3 U * Ai e i fa mm & o: e & fl o i * H t> 0 <4 (ft **- s fift S 0 1 fa *> . a S s 4 fa mP 5 48 f t 3 f5 3 0 mm O fa fa gn <5 5 U v r, .s* Vj fi .J X o. -4 O j4 E fa <5 X c s 4 8 a. S O(9fl ft Q *4 3 ga fa 48 3S o H u 9 3 fa 0 0 <8 --r, 6 fa 1 ! C 0 ri +J ft 3 fa 48 c Ori c o 1 u c <i--3 i f> * 3 O <* S C- O X3 J fi a a f t c fa S y <o3 > XJ S O0 fa fi 48 o* '-X tfl 3 4 ' S tf O c> s e O * ? *8 -- OO rrf fa i8 m f t i f t ci-; fa e> g 3 25 I pO O $ f-J -a* JS i*3 S ft < *fa S! (*u 2 43 ft Ai O c-1 Sci U & fa ft ft 3 o3 0 i u o 5s s 1? r V o mb 5 l e & Si =0 fa 1 f t t fa paO <s V f t t ss m / - i5 f i fa V 4 * V & e fl K s J w 0 cC p? c *1 cm CTJ I (d f t o 4J < '> e- 2 B o fa S A me cl K s; 3 & h 2 o l* `l i* ` >6 ft P&a * f t w fa %- S f t r XJ & S t e i* Q> S 4 O] C fa !J 5 1 Ol s V fa ( il fMl *3 cr. & ir .frt' i e 9 o < 4i $ x* H 0 c f, t> ii A 8 S t?, 1 e f t is i> { 6* 3 a 4 f t S f*1 fa o u A %> 0 r.,. 0 a CT g M 4 U j SJ fa rv ' R 3 f i 1t x w; V 0 5S --* B fa 3 K < 1 ? A 03 *8 m e 8 `3 <2 O fa %o e WO 9K y r ii M 90 fa 39 f t f t fa *J <S4 1 fa ftC 1oC ` ) 3 1 % gg W 8 1 * >5 U o Ai* se fa Ci ot r* c ca 3 ^ g a S J & ori .1 >-3 fa *5J ^4 % S 5 .U0 ssi e* O '4? OJ A | 21 85 R f t tv 11 1 S5 R S S *o 9 O 3 s3 *3 a *3 M t f t Y J r 00 r < * *o ft 3 o WCD 001273 *V * J 5 H -t t u .s f s S50*tif9 5? t H o > ? r a e s i( n * r O ` u A | d l l ? i j u ssi r e p u a ffrs .w 3 8 s s s s 4^ r 3 ^t b m w * *5 s sa w fit8 S H w *a w s M 9 W J I U S P *3jX f W U | j M S } f | * 0 i i*8 J u * 2 < } *i; ro t; V- fs+e l! a s*c ?tu-' n i-*) n t* IB a 8:<a 0 5 S9 tri fU ^ ac^-Jt9tkO*r*k* a5*&5t>s-5* WJ 61*1 gj^i!. :tr*f*-)r e 2? **; g m SI'SI Ml 2&S>! "S " cP #tW3.O-K*->V}5w>2i.&tSOsB*) Ul ftfi III *5i *rl lU tf ,vj * * * Ovi-0^ `3 t^wip t*C-*l3WO^ iO l ri ru Ci Kj *9*s &- >1 V 0Kivii t-s-uo 5* sPUs sAj 1 B** a & (I) ?6 -J f rO l m8 Qft- e v Ce G 8 T5 % 8- i0 o v& n" (0 2 56 C1 s a0 S* c * 4* 5 f >* =-5 g i? &n tf i & O s a toe- tSS* I j w n e 3SJS i - j i sqa * 8 8 3 S5 i u o u m * ! $ u p ^ p p m m esf es f* W ?s ?<W JftVSSB l 5 O WCD 001274 k3a. JoZ ti m *4 & 91 ** M I 3 2 Kl 9Vi M i*t4e 5*; /3PI i I <a *IrW"S> , er.3 Sy 5 Vos3! &A8 *;iS: <9 '+jo- t&33i --e * 44St#VM>. <&-< *ea3-5 -&:->: .5 <Si3*6 i2J-ei Slo S >5 u 'S $*.J 4*5; tr m3)i a: t<fie-JS? *U2 -i3eyoot-E; :- .wt*s--?Br 4tVS*fJair X$g feta *gS<*5; <$e f4e,,%i.n `sa*e%-i *3*m. w% *~*AS AJ &3S ti. t.9i* 4;..<: * e 1 i a*< S? fb3tM0e. *4Cm*-Ssj **5 B5--19; -*f#e*9, '9$> >%**S*$j H fl*,tMv. et.'--J.v?C.iij P**l Kjsma; &" 2t*S=*gL3 I w^* j-ss 'S *%>s 5So 4,*e. >3 S3Ii4 4< fe<M*} irts--f 44.t<29 ov%*l--ess #4 i/ Bm3l e; J /a-' ftz.Vn*0. 4>l tf3-8i` Oe1 S5JVhi. & VVafcJi > - B%l C u(fCe;i $J 4a85s <* 4>y5 *O3s 2wM#5 H4#?c; a>f..4f&?St) %ON afnflisJB>. # J 401 t& nSV5*-3:i! S-L'I 4f*i aApj c fOQ"3j >o1S>>3 U VAyt *491%'V<S9,i P . 4 *fe. me*.* ,J`. .fi2i T.i <*",-404 g *U* & 4KiHr*9<OJ5*i bl *0 * <%j t-j cw;i-.5ylj g* w-9J V; "!> t fei X<.6$-_ 3f? <rV4)' fmej -bi % % %K. fe0. Gv fe ti 1 c>* k #V I '< f<e-.e m u /m74Sg4; V,. S&' 4*i8'5l5 g 45 S 5J11 4fV95l 1s9e s4%*\> 4J f?i h Zfe mrV*a/ cimmmr-i SVPfe. 2B19 feyj f$if fyyt vsa l*-Vaaj 490*4 4<wff>(&--e*?1ea()'> T#nsi.ii **J2h-:>???:%> mc *fSe. tsi m4" '1o> fe* .<-J, ^M9 *C19rfSI5,$fi f4j1 ^foe>5 BS V<i3> ri; X?'i j9.;Si *4 H.mf1f-e.i, PkV1 c a- tvl - ? 8*a fi, .ASyMf*t; 2*rfWc M< fo Xo fi* r F&p, fSwf*c s^> iy * . t> itt 1^- 9, 5Ohv; V WCD 001275 of g); 19}' 3|,i.0jfc M || g * / () "SWSS8MSNS *'S>SteTj *9%V)3SqW9 SVSR5> <tB B5^.H5S tUB-- tfl ,"**' f j JP4 SVit,5* m 'IM IM m nl <S*S! M ftm ` i j i p t * 4 ttuntum pu *#hh ?,* s s r i^ i4 < 5 0 5 ^ y n i O W S J S i 9 |!M O d 8 Jtrf S f f ?Ai ?jJ* 3%5?*>j! s:i s3 O M -*4 COMPOSITION OF TALC MINED IN THE UNITED STATES S $ C ^ ci 3 -i* t* ft' fr** ** {*<a *>fie-i .T&f*P4>?1^J`'S* <-f2iSS**f.*Cf$-*i.- * <* w y * W jft 5=f;-* f c f- tyS **7 3-e <fss- S3 e* a S, 3 SB * *'X& :'i *> *<**ef-*C' a ft $ V, Cr*? c*r 0te.<1Nvs O (s! $ >PfrNt*> irf(-t<5*>t r *-*> ttee ^f3 * h t*"ej *"--C^t3 7-*''Fi ;i f<t? - -WSi* ft 'c 6CLfv&'<**'**^S 01ae3vcs*' .? s, f f * S / i o 3(1 * ^0O...>"if--*:1r>, fra2fC5get>S:-i <5j ,ffg"t. *ft#tesvs**>aa{>\; h'Ca-\Jpa>*e */^r**?*- a ^pacp-*3-#*' S as9r \tAW3*>*{ru2CK5v)t?l 1f113!}5<OMSSri <8 r *rv 3% :t'!-* & ft O fgi * te R3A te>' BS -Or.ii <*fnplio;i-v0u^2f6ssi*r3csf>f\-t.3>ttcD;5aa *0gtOo*5* 2n^. ^<1`qv. -c : ft H ff.tt 3 W *priIfS3ikti??:*)*V0lff(f*katttIi! ^'etS3Je9** A 13 fe te * O i *=c rtsi?*ffOc Sfi S t-*` SJ fi? S- fs * ft 0 6i S iCi 0 ?rir 2 t9 art-e2**ieKsir?^f?l??t s . 1s>*tr-e?l<1lsO%-i t* f te sf t f?0f* pFftN1er-O3?Pr0<?*> ftt* ttei 0 t0(uS*t>;>0cg?Sf-rj ft G -M3g *-? riS X 0ttea 1 a Cyi nsCi, CO wif ?{fr1C--ti^i- O aKacri<. rt iM* CL ft S&tfjas.S A J W K t (lSffl sfSJSH8BMI ` rayrsvfd 'iiqipM o u i ?M S O U -I B 3 9 -69 > lS J S l WCD 001276 TABLE 1 1 -2 (COKTINUEDl 3 (USI 3 /a: oQ. V) Ui H O !5 Ui H S? y 0*0 ee ** a 3 W? U a -V>)4I 3 k. M o -* W e 50 I Ir 3b **) CI) *iOTi)l U &n O -(I: I Ul s ` ; wi <* H 0 i U3- f -W U ii 9 S I ! " 2 S* U ! >> I 0 O ! u* O s 1 : 31 8i*> O <> <W M =*+* C3 4 SO 3 a i L.to *S * g t e ** -- "jO<31 K O h <J ;* J Va %O V ow fl M U LUt~ o i- g * * g S V t* <9 o .O ' > o U -i o ft ft ,<v*l .w ea =3 l c S c* j 3 b So 3 8 & $ II e 9c=j i * i 3 :; ? fc ,9 a3s b o e\i a .s ? ^ s U! ra i 1* A 'S f* |* i8e H s i*<- F p i p* rI--T. i*** *.ij*_* nw its,Pf*ja fShS ita o p* PC*' Kiri\*j' Shm* fe<*>** \ WCD 001277 9 S2 ss *.9- s T 1et : 5. 4s M a a a oea A A A A >W a w m --O o H s <0 aa P 3? 3 > bi a a ai oecaa a at a i t s is S S fc g s s *222* * gg vft -- & 5 <i.'Sj Iz i < f o 8 -- oft w *- III 3 8 ft ft V 5 ft. ? $O sj M AJ 8 range o f m ineral e w iw s r t ii *jf bulk sam ples from ta lc b e p o s it s m the sa tPESK EH A G E *{ iV . f9 2 N1) o O ? f V-1 e 9 i ? o s 9 'V O i5> S 9l 99 S S aCi 9 5 o * 01 \Sl I o Ci' ? I Ufl M H o- f.r! N f' H t.?3 Ut > ? ^4 "J U '* Vb 1 fr `.j*t ff ^ .V * " JK 3SSK & t* -* fe -- 119it? r3"" !`75 WM**--i .'*,' Y, Mf* f7*ieb?a<'jms*'t**s.&..' ~ * Jy x f *? T f ' BS b T-- t3& **? i'> 99 UB ' o w O ft a 3 l f if Xe U * H StSf :-'v** SS \ i S. i m iA O f o * r* *8 ft * f*- Q_ * ir '* 3 ,, C-* yfi 0/0 3KKft a^s. V vJSJ-l>D B * ..... *m fc a- WM *a* S t^j-r>^r*.* . v: a > g- y i P* m r* et ff? ~ a** * e*> tf* ** 9*m* m <!**% c* -> ** fit* 1 3 et ar |8 1 S**> $3 |S it ft *: a WCD 001278 QLZIOO Q O AA j/SjBS 0 98 vsn h i sii s s j3c s i x 'Se K SSTsoWS n n s ;!> SOIJUSOdHOO T flS K 3 3 ?aj 8*8 G 30?W H?a TOSO I - m i r*U 3 I S O O f fV J W U fa t S t>* < JK 9t?d < te tto sg *-* m m S II 3 *I $ g 5S e fi* fw.>? s (s S*3 % cw 8i .V a* y fe P %fip % % V; V 1 5g^ S ec . sa *r c ctee g B|o te * a % te 9. iz: te g (O **1 *4 pE, 4 R fei> u &9te fil O 8 h* M e0> 1 lo SK G*t 'tCPf*** Ba G. 4XO 'S? 91:. 5 a & Sa pfr <s. f * 2 1a 5 te ti& Ce 4 d al te * ** g U si < t u tI fIe I m X 1 "5 14 Or . 3(3 r '% 2 s <*> V f i- 1ft Sp I IV I v-. s *6 \ ui n 3fc i' fca l t j1 'S ? & sI A & A- fc*i r* V 8 O m*** H fee* O O 9. UU * OA CA-J MA : o o fi M P & K tP a> Oft iA T w3h AA ?< A W A 1 (1 MPU ,ce*&** !i1i 15 I >v f c ? &O 9 9 O *4 8 8 c. oO *x S vv? 8o O 9V;* O - 5 A *- ?- o3*> _ it> 'X# >vl ? 2 c oTo? -.3 ,? 4> 8 i5 o ^>*1 A A A **# fftgai S v' i O % *\l o te f fW P iy Jjl * >* < . sa A i A TA 8 vAil <5 lit~* i sI 1 y CaS <fm-* 9 - , N :3 ii ! 1 ! co *3 `P p &H y* ** 3 Sr Vr -' w ai j* ig .V, r `. > *=> HE rr t 1 e it 0 g S Js f" <v R : r-- n -- ri* 3 * 5/ E) ri* r> a * * r? y & o re* ; 3 liini Ctf P. fe3 <*3 >> r. e* * :: rt & 2 Sr te y -i. prj ff B? tf t e ri 1: ** Hi j* 6 f t ft K* a ut 3 ri* v t r i fa f c a* S * &y aC'!' * -* f*> 3* fi 3HQ e 1 &. ASt a e E''j e=* ty e w a h. e 9 "O% m*frni> Q, 0 --i o i M> n* fi fin ** ft e 0 fcr 9 er * 2*. * v`fi' 9 G .V 3 i? t<& J <!* a e** a ft 0 Hi r* 9e te tM *1 % 5 >* j*o i-e i* a X J-e MJ rt O ** 1>} i* V4 iN| | $ fi* et fi ft g fi & fc* 3 i>* 3 i! fr tr.- m 5 ? W t* e y 51, te u -i * * VA 0 HT e * H ti r r f* # aH t> tes r * e r? t3" 3 ? VI a rv Ci". > * *- HI ? 3 fi tfC Ir*- 9 %tS; r# II p ft w - f i (*f> vi* ae e t 3 t o jtt a 0. e nG w mt t f i <c ; 0 . i r r% 3 f fi ft <? * * R 3* <> H r is s Mf i . e. S8** 52 rii sr # VaLr w 5 [V- Sfe 1 ;r ts ffrit` 4-Si 3 a } 5 G ag v V'V J* p 3 C33 f 0 n f]4 < n* R K *> 5 O ! a * V JW D9 A . U t f7'w ff-s' * 9 e %- Bt[j * a 3 ia4* y- n' fi (J 3 w 45 *0 85 ** rr e* 3 %&r> <%' f c -fi f? n {3 di t"" ts^ LI JS 0 ff t C, r* P O, i ti e--* V ty Q & " s, Mi A tt. yi 5** O e a * &S -J L t: 3^* I * aO :ti E-- i a f\ V) t e ft C. tor ? G s t> 9 > i* 2f i*i ` `S # i C*> 5* t. teft cm->p 25 C5 (-- CfA te e d f`J 3 i*t 9 <9*->? >*> rt* o r* JV & >' fi* te rt* fi O 3 s**2 tt=H 3 a i E 1 te a r l. S** t. 9 # b. i* 3 J3' 5 55 ft e* & e V @ 4*5* S fi rS te t>A+f .V i 9 t* rt-i n & * --> C te # .. r te 3^ [lv f te ti >* ir* ft te 1 e 5* r^i Of ?* C-> Ui io >-* t^ ft 1 II e* te <3 rV < St9Ziii' m:< !< tv L-; o CO 1j (R fa Or O '- J 3 f? $ * o ?*? Fk* 5 *"'. te. $ J* S*w &ri ? % K e 0 S' k` . s Ki 0 2 & ft 2 fr ;f* 9 K IV tei *. c-f* r Ht r 51 1 " fa te a Mi fe er ri t em >- f? BS otuont fs> & cS "S te * & rs> ? J3* 5, 9 a. sr H 8 kM > >- ft e 8 .55 r* <S t> 0 t -t foi ft 1 f* f-o C rt r* r rii a ti te G ^ cp ft fV " O rV 3* !- ft* 0e . 1 ; o <vi c i <* ri s > J Ji* I:1: * l` ' <w ]5 ? a t& f* > ?> E ft * r *4 3K <O S i f f t 1 ?- e p g f'? --B 60 6 1 i 3 1 6) e y r*i ir ! 6 oM i &G 1 L- tr 1: Ce* < a mm r> P sil < ca f? ty ;e Kb & iu . > t f>* w Jf: f > i 2* iE IJ- f i* ; K Si IS 1C-- ia i1 i 5 er r. 1'" i :3 ** 3* & ft 3 P9 s 0 e 2 5 A u iva i-l p 'Q p ffs t i i ' 4 f i 3-^ # *> tA i r v. ft1 f i IIP t t? H . `' b g Si* t - V E f; # *# 5B lS f i* y , ' i v 1. t e 5s <4& a iV te e--' (?. 0 5 ftfc t f ri* 6$ ! ri* KO tV. J*? y h Ai IV A %e < s <y 6 > i rv wRn fte ;w f ip CD li ft ft e te te tX2u5 te3 r i? f5 t^ H Al Cl < *1 e e 0 ; ?- e 2 & K P, ft fi 9 &< v 3 f> r t* M &' ) ut <v O te r# 3 <? *1 9i Kts-t* rt* e* * 1 fi* y> rift *i (K 1? o 0 rt 51 *-> 3 41 5f sr ti ?) 1? 3* 4@ i Ili * ari e ' 3P 1 A yt- i ri* 1 c--% fi* 3` $ *>. y > ti* S " *!' v e v i*r l e . B 3 3 fv in > Jo- 0 te r: !A O ti 9 O 9 # ^i o 3 i" 4 g te f t* 'm o o > Ss ft* hrZfevii V* ri* f^T *3 3 fi P* ft* 2T >. > I*t 0 & (i fi ut e JU) 3 ' ( 3 1 fi5' a a e 5? s #w G. r-. * s 3Mt **i o i* C-ft -?1 ->*> & t 3 3* P & iftte ift* ss te l <' 10 w C H t) ft " r,IT. f t &* 3 g< 5) e? p- r' 0 g W) % te o n9 D 1 ft* tv m; ffi rsi t e ^5 f' f t g SS k-- s o 0A i o fJ* Ci C e *;.f i t e * tv y fS* 8J> A a v=> ao 1 .V. o . (2 O Ae* U & 5 O 3 o .-- i e fi > o i> n O ftP r~ -li y 0* 3 e te -k G 3 w o -*> rv 3* 6 V, ET R ri* 0 W i * 3 A to* t ) WCD 001280 W2 cMHWtlc p a v o n i, C n ll* y t si 1531, i W3* identifisd fibrg ! tale p r e ? w i S * d S a l e s f e m d a r d s t i l i O S e s s s l y feoe t h * M U H d tey tlw m anort arm t a f f ic lt n U y < f r t t c war*t th* S t- !G : 2 i2 ct-?e i3 i<y ii-, a f9e 9) %4? 4 J 3*1 g .K ff * a i3 g e4 * <W V e* il I J 4 O G ;i 3 i *t9--3*> Vi *i-i Mc. t&*',*i. m in . AO3 *$> `?3 A^Vyk&i w JR `?0o @Ioli .:.4.Jji> 1 S3 aafes Cfs*ji *< &> * i 1 --wi/Qi* : s 1 fa.3 a% m*--$53i ie. tMfii-2-:ii J1 u fie)- t f$ei w CA-*o5- 1 : t rt! yC* CrfJ!#i1 Q(Si A,'<3i; awfe*oe * !-11 *s*r<G1; : i 1 c9ao> 4oQ-5 Vi ACi; A<sr=t i1r 1! oO \ 1 A'1> ** c *2** tAfi fce< 'r$->f 6 <cij A4&uO_l,4 SA:kyw<O4--$j) K Js% A vQi. yfuge? IS X) & * 1 J ti` mu Men g Mkoi? j&l*a?-5ep Ag4 J f i-5 % & & A--mS Vi y A'* 1l0 sm-4 JW?Myt>i1 Vmi J.-i V A3?H 4 V enT3 V ) V. k--f3--iJ 919 iEf*-5 '--$grQeo, S$ $ Xi # rfIL%$f--ieil 'MJ 1iSsi --.s 5 2V veG ASx w<;M3 g$ tl Vf*:3f --%.c~G*4i J c< S-J1 0 w0 'f%d-Se)j VgJ A4 s'in' il g ACSlKi <U1fale$ *S j A4rA$.-ivi dSor 6pIci jfi fA3> P JJ 3 i 1 * ** 2 1V8eiS*i .s.f*AitU f1Sl? wgf m Aof<eU<> Oy 5 A%5 1si 1'.e*: 94O 3> 0 E PG (SI. AfWe 3g t.x% a liS %.*; o!*4 S y ffteis 'K m fSie <'f11sIS5u. 1 i 15 --oAMillQ1 #ntj<' -1!ft. an m fi cmaS*? fe eA-J8 a 2' j P?i3 fi, y ? fe cw~3faE1f*>Si-ee3, 6 AiCCl4i* -Sv9> *g&-'3 i4j. ik} ! fe cL &f* '50 nV ce4 % Jsn t 0 A*a*c=3d4 AV3 3C3 S AJ Jo rGrAj' w. Am4 % a. V3* tf .ea fe 1 fK*g-CiS rsa vr:i S9 Ll{ ceSy*a:u *E a3Gk9* ky i s j si l P .o:J '*? JUC T**; --A--a43 fa fyM0i Al 'J m fQi & CaGJ! O*Jt>>5 y i us f6ffriijit % I ^ Cw> <C9 sUa*? Xi J --AVJdGGO, /( Q Ac[il a;O0 wf0$i A J V IC) iA*J) <%3 a A0l 1 ISAiJ3l y ,ii O m JS" J" % ca K*j U y y tV5rAi'/33i Io f t fSi*P ? O*. {?*1 9/ c lS\i ft k sa 1& -vl * s$. SS n s $ S S& A9 fa 5 *y V ttw a938 a # j w e r * i t * * t * a s d * r d * WCD 001281 <0 e 8 8 8 I 3 * 3 S 8 ! 3 a B* fei -= Sg A?r f ^ tT Bo MS rr ft ? a5 $ % B 3 B f * I sg 19 r1"hs 3 1 * I 2 i 8 *s m * f3f li Bs 2 < 8 * Hi 95 C B * a f2 c MV *I I H fc a r* . rt* m s 81 h sf * ST I O* 1 ft B f Ps 1 I g Iu B 0n s* Ok H 1% 8 1 % 3 B"S V a B B I $e >fc S *' Ut 0 ftt? * 3r ft -- * 3 .: tt l 'I < r* Hs * * o E<* Ba ag as & . U rr I y * " S 13 gr f *> i i t (* gft a: S av5 sV3 'S e* & fi -% . w : S oh r.'. ;s 5 * S ir C* <n i B c* a m 1 'o t~> &w fi. g M G I ><8? O3t IE t--' i*fr * *< rt* S> 8 13 W T e* 5 g %C. Satt g fat : i \> <% s* < f u t G. T H f1 Ut f (r, ft (& *> u? WCD 001282 O 3&*5 o tw t a i Isetene th a t is atinad b u t r a th e r p ro d u c t a t e le p rod u ct t2 ! C 6 d s s lP s d pity s i c a l p ropisrtlQ So p r 2w ar ly ctepsnciant on p e r t.tc lc s u e ,. M4* !f-t sCad 15 dE P cu* aft. n Vc f"l no-4 /e:* -4 a rfJa c 6<D i P tJm4 a S--S3wJ* g c 3 %V(afi eC. 1i? e0ft u f<alu la U) 0 900w5. *e00l <a o sft C <M*> O- Pc 15 mi 2 ;* 0 Is 0 8* (Oft! ffcf a <*5 MXI yj J *' p *: 1 c a la 8 & 6J m V>*j} *o5o Ctrl cn 3u G 8 & C-A Ml Si 43 & 2 . I 0 j 5 (S U 4JC1 ja< <M cg **00 K I 0 ft <3 8 J 3 3a P 1 3 ft a1r=e1 1C; a fc 400 91 Vafl & a & 4 f-J I 6 i & i(f, & fs(SiI <s3) 2 !3 rS* a 3 oOKS S a a c aa au u Hc 4 -" Cf1i u. O & 5s Ce r-i c0 e4 sf t cC _f?t *3w*. osi 51 mg 3 e c $o*i --ue3 4i 15&s <J w XI au tOJ Wa -U4 03I 41 tis o <Vy>I a cJ JZ H e f> * * XI J&S* e9 *rl <ff9lt ft Cw 0 - ? Pi ^*31 P*1 ^a -> *1 r3tj r* o M ?*; t 1oj 14 ku xM VI g3 >* 'au i a o 40? 5XI 00 ft aJ ft S.-3 1 9ofkl s> u J-4 e a 80 rcH 13 n cr<: O ft g 6i9 0 OP c4 mf l t * P IO 0 IS <5 3 Q 1 T# *M1 61 i*PcufslJ 2-4 *C3 i 0 U) s.S*ug4Jtai eij Qc5-> tffoll 1&5 tS3 Jj 0 4 9 I9 UcQ Cf3f e a4 60 sfal: 1S3 (0 to0a 4p0"S ft 9vs .q 0 o a pc< fl 1 <y0 e d ft S&t. c *14 $> e it 0 vs 5ss 4&> ;.r-t V0, afftt VI S(9' fCOl Q OO0 &U Icfsl COIOMP0 U pc 0 0 V) a *a*> .#<0cJ v> *J (/3 e7*33 3c !f l VCJ u OQ O0 s Hfli nnO fsg3l. fOl 0 0 4 O 0c* fl O IfSl *ffli 3 6 #0 -P 0 yO 5as &c cfprt G SOJi =8 *m55 Mif0il g&. *4 4 .f5o9 3 W0 eo,,-; w wa 0 a f3l *O> 0i .S gO QO P 5> 3 0J s 0 fc ots> S3 pstii a.? a ft4fVolJlt fV9l -CCM -1 crj fl: O! C(J-4 fli flu wO of0M3li *P9 ft a IM vas ei s 0 <n SfOl urKj1 Is p csO P3L 05 P Si <s> 0 IP 0 5 fl>l f&tffP*oll i 4fJl n* s vt*r; <t6*5 D s 1 4%p MO* MMO O 8 V J<f3Zl* 1 fJ0uZl 20 fVl. *5 e p ? a Mft <Si -4fC1l N. ft P3c V) 13I 3 Tfil k M 1 322 P u--< Cfl 4fl VI 0 4un*4 KtumQcmKj % 0fl fvlj u 04 fl fC**l1 51 MC 3i* ruh34 5P(fl ft f0l t*Wf1) i ft ft O6t*wJl *it5 ' w 5=1 --* fOf 0r1, w ft 3 o' sr 1 Ift V0ci 4v'l V) 0 = s 41 * <1 s4 -->553. f0s 41 vSVu9L>I) Of-t C* A 15 ft fl M (V I0'M3 .sft H afQt w *3 4m> 1^ SS ir<*if 00.1 -9M foi S R Q | 5 * 0 npv: M 3mo <8> nin # ti |fCQSMtpt & d r> O ** ni OM'SP cKPtXioif WCD 001283 J i Klj * * 1-.s 3 B .I .se TJ9u j #3J c q i * p * x f t i puns# i j i s n a T .-|s a s w jg s * * oe paod>:s u s } t ? P * i .m 'n - ^ u t p u # % u | t | | * # B i t t n U ) .w a jju t m t a i Humsot* .iaa**?>ie "g ^ s s j u t y p Munti o u i M fttu i * i * o p tw jLU VftI j Ig o r I q 'j* O >o O^ I l 88 -**4 ? g i% S* -G 1 1 SL > N* & ' 9 fi C . rn-- s 5? F* fil g* ft & S , * 0 '* **> & %ft ft a 1 i ! I * - w 9 T' % V- t-'*G- g M i?P f?t?*^?; is3 i ** S ' ft 1 i * g ; 8 Is f f B *r pc s ? : 1J * t-- e fj "S O ft S ' c? S* ft r+ i *0 & f 1 fg-s C<: * 3 m SS % * ft I !* # f) 3 '< <5 ^ %O G 3- -S s e ft 3 i g. s. 5 9w 3 fc OI "% 3' T teft-j ?** s? I Ui G Zi 2 T T r> 6- N>* 3 ^S *2 s i? y> >w C c o 5' *<: Z t 5 * * * i fi O # s a <v <4. I Vt" H sI Sto Sf e> l- O 3* ift ^ I WCD 001284 / \ SELECTED OCCUPATIONS NITH POTENTIAL EXPOSURE TO TALC 153* p * u > B n ic p l* IktiwsSsI m g +*"a#sr-*{ wcaun who hc<s bn posso1 i j ' t.M tt ?I [ E .* * * 2I I 2 tV rCe *bs ! .' c** s* ** g 3S g i. tia f Ies *s 9 . S) i l H * s JK fe f 1 I5 1 *U f, 5 rf ' t i ; S * *I * g5 * ie *3Oa* t9 >53 K*B i- 'uKm #t ? *1 H0 <* t f : ii r I i S il S te i 3 ! SI I Ti 1 I s i i ^g I 2 2 3 8 S=2 * a fV J 5 I \ O rJ P 8 3 V. t V* u .* .11 a L ll (} *** WCD 001285 \ > ten rg .... 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CP a 3 s^3c & a0? e <^> PM *f0O* no *C> 3 S fat a 9 >* "O*t3f9*otr*t KI r-> 0 & 03 n* *<* Prai rt t atf >- 5 rf&:<t 9p?> f'<*v + ft t--, pi 03-i >5<e cft 3 CJ o Sto: ft fVi w* O H&:m Of1t*i.' a fV S9* "i ft (6 aff/cVi*' O C ies1* >1 9fftir I K3p%* Si f3; ft g bC.3 /5 rt fo eiw` I 0(A c*. ft' M 0 rt* p-> n rftt) fSt a 0s '4 Ct fi* :-vf ^5 *4 c*,i SQ&-*. fKt Pv? W or<>*vi fUt.<3* 0 8 & SjPfi Mn !i*rXsi*- e Pr?C0; rv t*^ ft 0 0 ft a c o | fi 1iO t3f*t> & ft *"ny4 S**48 fat A CZ4TiJ ir Bf ft rt Hi fa 5) O>r> f- mb f *f&t pi 7 ej bfkata c oPi a a f*t', fe. Cf e5 M3 Q3 0i. <5? *9 *fof?tt 2a pp>i* ft Sip i I f e*] 1 e.). gp p ,w> t1r?m> W 0 I 9St R% 3ro es 1i fi 5^ P"5w` *? *!' fe rs/j rt 5* 1 i V* A p 0 Ssii* & a mob O. *i ta e9-- f9.^' fftt 3 mx 5 in A rt A sCJ tii 3 pc* O *IrSp> & 3 if?t *f5t ;a,ti 0 0c;. {* &AP)i* *ft *i Hi rt c-J % J f 3 r2ftt) f Ifdt: ft bT oft n*_, oft s & it w 3 O &ft r? f3fet* 2* 1 5 w fi* I**23* t? pusi, 3y y8 &-3 O M > >s> r/ G. O 1JSS l>--1 o p? t) ;* L3 8ft!L*5t->*f i ; ft ft; B MO<* 32ft- r1 o c32i f>e, 0n * ft n. *> Gy p. rt pfto (ft >* 3 **!> && *-1u ft) fvt rt p? li Q 3 2rt *1 f 3* i*1 pi;* . "H o ?! O a f3i rGt* a Z0t *5 i C Ift 2r fNe fe " r; ca/ 1 B ) ies rr i*i- 2 *% 6.i IrrS#?a jj IK r2r> o *rt i6r6f< l::. C * *i-4s H i. P* A- rt it ii KIS* too rt fffiiil N* a r5t* fi a 8*r.?* *-%. f\J V! O55 MA. 0B1 03 *** A3 rIif- fw'al l& 3 rt. t&*r I '2 p5C**j)*> Krpt>* rletv Q3Sr-i ft a f>\ PjgCF' rt C(-ri ii ga % 8 O if h. 0** w ft 1 0l A >rfet (ryt* cro?t 4 &cQ 3 fe If-l5 <Oo *ft *V4 nr-t' 3 cH| fi lK g x-t 3fe # ri VfmO*4i*0r O >r?* >s1* ** -nW| 5 fM| AtV* ft* 9e 5p> s oB *1 B fe m :- 1S' cb 9e&t c-l cr rt ip s rt :.3 *rrcat* Hi r% h rv frb;i 3* P. wfe Kp>> GE frtt ff-jef fi 3 - n *& fi fCwt , c t ffr >Ut t/J tii ts. 3 psi Jn fel n* f*t* 3Pi* ma; *s 1 in' >i--b rt0ot tfcn* oi & 0L fe Ci fat * ay rfet IGK *? fe fOek n c fi fs <: 0-- *ut 1-- ott fe 3 Oa 3 0. 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S '*J s (D * I *-J sa 5 3j^. a M ^c 3g 6 * 3 6 'e <$ w. u tf a ' k s O ts I3 w J V) .S A) *5 J* iCf i O 2 a9 i si S os (3 o3 JJ X fv A) 3 'C#r?. k <5 2 4 A X if* TJ Crt (d 0 0 c*4 * 0< Al S A? a GS H Ni fi Si 9 a G&e j E -J ta A Ai a .GSi c C9 U 0 A0J fi U 31 **4 .;-j 91 S 's ei O 9 *J 3 fl s Si C<- <) Cu 3 i* ? 3d { fi ii l 2 a M *>o O JZ 4J g oJC C- Br, t" i 4J S i " % 3 ft A* Cil >-, A 3 LO & *c ) f? <J & 23 t`-j 0 0 Ma 2 O*) 22 S d c C>J S C' & s M 5 86 <?r orni ;y f t 4J U <*> s. 1 C tx '1 0 6 Sb i i ori 4J 3 ort & 'S T* ko ' S Sx 2 b f i <x J e C .< y 'i cK 3 0 e V) x4 E V- X 1 3 ox V Jrt 9 K 9> G CJ hu c4 K- N U Is A 1im 3 y J s ti :. 0 51 S > A 8 if s V$ a * ,V ::i V* 1c& 2 n 5 m * GM-*# m Pi n ( PB5 pi s n V R 5W. KS riM Rtw. tl) *3 =" ru 4e*nJ 8 0 P P| **r OO t 2( P ro* s 4 Pi ci g n e-i *1n f'S **> * , o 0W WCD 001291 r OSi t; f> MB* en rnm %M OmU**i tv V* <19 * tt&ooM* CO S -y t tri. $ MS UCD mto' tnmov: M wt*y*?* ABtU--3"> m iAJi mm Ut O Sf*r5 <V-. 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Ofc*c*^.<J. 1c!38, fj <s> f Ot.r cO. ilu. y5 * iyTS' VSfm* tSnrt:Li i9 m`i*;9S Pi!>; yt 3sr> SmtCo' ft. itfo9t 3 t r.; t** -5J4 0 rt.o? sr rf.?i* Sfc H9, ri * Wf0 lalri. Pr?` <v Srri sOnc*j fSt,l Oe1a *1C5cnfy?ix>r Mh3n* ntfo.. 1 *V9tti&41#n4o%e *3mfc II: iCcfi f5#> Ci #JPn. tJ * ar.l Oft* 0 S3Gfi. toS1i3.l ,t!5s te >yr*4- Nf<c3j Vis fcl 0* fVy3 m tiNtl;' S3*c 'T a i {Ni%*r & fe> v: 0gitie Aseeytrio*n MitLo a OCr5ii* t0`tofit P 8$ fri*i C* m90, r6f*i-as, ' s? g W >f1s r2;P' VSK 5' G 8t5r--Di' a ef- 1? GH tm5t &Kmbdti*,g*' 4 *fgat=tc (UU** Tftftot? te `Q fa &l0'i i -l1 0 trs 0t&cMaos 505 wI31 *tcyP***S*j-3e*" !p-> >.3 ft* &*t0ei 3sr* to JS%`"t*"i:t5 ? giSJ-*' *w; s. ttr ,1 8{; pi1 fC*'i* a igr;1 jr; <&HtS*tIC*&t>ooeVS1 GSt\t ft n3 LD tttt3frr*>oeii" * >& %V0ct1> -* tff**t!:> !ft* 9i et* Owd 1Xi;t-o* tion m3& r- ry- frPctf*i 4- to Ujfi i*a t*t rt' jSB SS f rICf?#V* 1SW;. i *fc. yZ! \fff39*tit** -0t Pg3** ir pr nte P. frt*., *"ti>o'*j* Dtyf(tj* 4 12*0. 'rfNS*t- t4: J, f ]3* t> S f5c--* fCKMt; r1I*? 9t liV 1# %"to5t 0 sf1ki ttf|VooVt; <yGr-i>esvr irmfWs->*<?;*' 03 1; to S.i 04*>` vMim:f ft 8arjj!fbs*ivt B6, sBr?r 50-- *- \ PI1Vi r0i* 403tet> ttfoe9' &te m1mr `P S, 949I* f`ftstf,-tif*c rP r' i #fKj f" gS3'*-i' %o fch>-' tn*-* STPC jm&sO P ft ** Rftr** Kr* faKt Q TMOtf<?bSg BB(t0rQ=oT. t*fo^tj ts. Plj. m;P'l iy-1rv yiril* 3O 30 C yficfit" g- CaeKM.--- ste BJg3Jf< pt Si I 'tCD. 0"i cV* "9"K41i5 Cmcss3l., Sp4mC "11c to* C ttftotoesi' yB 7s0y.s. fIffffttteiV-* <v i J Ij 1 ? j WCD 001292 M ilia r e trara esposad to t a ie dust a a averaqii eo o esn tretio n o $t o 3 " e l & e :^3 Q o 4 O r\ i> c d 4 1 g 5 o 'S 1 fe ?3 c jg i ) b * CJ - m O2 r i j m t s i i3 cQ D Al s OJ : as m e c & <* 2u 'fe ft) o fj t3 a U- V-J C1 0 (3 ir ) 31 4 h vi %= CS Ifl s V i fe ' l 4. 0 s ca <W C U 2 5. o u s 3 & c f 1. , ? 0 o Q O s * 4 ) 1< t JS fe 4 f r iJ >1 u c Cl V JE 5r 9 fe * O , 4? n iy e fe l fe nu 3: C e * 1 fe M J <9 *^S c r . -5 v> > r - m e pfl a -* a ! C K 0 * '1 o < 4 tn 0 *3 c s 2 41 n O 0 i ; * y ' 0 ir - V j tm } O . f i; n-C ( t j . S `i .6 i i fe < / v^5 fe I *uC ss iV . m - V i? io j 4 * * * fe *) <-3 0 0 C* :> fe w * F4 S fe 3 fe O Wu 16 *3 " 0 >' o V; O m jg <* "O fS fe U T1 fe i C* o ff c o KM' 9 i i 9 3 C e s <) tt < >f. V, ^0 CI i ) ol u a e * o3 6 a <> i 3 t o 4 * a 4 * tn o *0 m g V c C ; ZJ r-, k i- wa > f2 < 8 < * .V f ' i EP p 1*3 <?J 9 Li N 5 iO u s# .c di 9 sM J & r 3 C J LIS - o S C t il 4 . c c * i m C c a i* u %d 8 ft> ;> ) Es * W e 43 'fe i >a 1 !* . 1 & V S w 0 fe * i n ^ 5 O ; * iif -u la a. ftl 4 e 4? s c 4 * > o w 3 * jf *50 ^-e 3 1 c 4 *fe 2 tt o* *fe --: O a ai r f i C1 eG 2 Se i cQ i a j s . 2 fe 03 u i 0 3 ta <y fe e 1 w t.-i e'* 1 f> &1 a * i ** V s 9 o 49 4 W r l u r3 0 t 5 fe fi) > A i fe 4 G 0 fe fe <i) ?? r . ] > ta 4) > V i 5 d i c t i A# ^ 5 S e fc >J y! :* j . >3 S se fe i V i ! c f sp r? ? 4' i 1 i IE 3 u O t i '> 1 Q 'fe .8 s i 43 * w 03 a a c$ i- i S) i t il ftj M n sa *0 t3 V Lc O. O > N 1 0 g 43 fi K X : Ue S9 c < 0 a o C S vC w3o Gi a * * 0 < jo r ii* ee Q 'S a > ^ t X 0 c# SJ s> & a T> tr< e 0 ca O - < v 0w e . i i t- m e ? c d 3 '. M # 0 e c ) *0 -: t a -0 J s z i 13 < fe D w* T i rf / u> ! <74 i 0 0 1 K f u .=4 *0 3 J ii 8 3 *fe jp 3 4 1i0 eI 2 5 'fe 2 K Mq *'# 5J fi o - it 30. eO C 4l JZ 0 5x> 9 .l L m 5 *i m t q 9 o 4* **J e c tt o < - O # fe B fg i *5 Q i 9 a 'U > L f, S i ;: 1 *-i d i f5 r 2 e 9 V . .43 o o fe 5f QV .VJ fNJ 4 M r? J 5 W r4 ' 1 .J o fl -o g fe 4 * a s S b l 3 a, ti) K 3 U 'S i D . et) < * 3 0 g c y S3 k>9 fe " r t i 1 4 1 3V B s 5 s|i & * f*3 % t3 m i S a, e ?o fe V a &/ & c n i %S W ir . le < * 4 * .v i 9 fe fe > r;. (. . V i s f V? 4* 9 & g 'i 4? v i 1u J * e * o i v * ) B . & M i-2 K - { & c= I <-0 ! * S w i ^ %*, r tu *5 es. r- i ' ? 3 9 m 3 3 VS fe 35? V 1 j ; i * * o ; B fi) ? '. c . w s i' >JJ '3 t; ii S) f l $ ` ti fe Ib 9 g i . &> M I O ,0 .1 11 >" 3 11 af 4 i w 1 f- : fe S ;* , i- 3 g #} % B *h j 4' p fe ). P * 3 j 6 A j <) 1 i 2* 4# 2g f :j s> t SS i fe 1. B SI; w % <A- 4 ' 'S fe r2 -# ir . r* g o n < > f+ * e t r * ja * C i O H * * i?} O 1! <* r * " s v * t ** ** **~ c o S ii ! * & O l - ' * r . C -) r . I e C i o n r ) -I m r j ^ i & M CTO "> car. - > 4M * r to O 'V at * s e,, O :: ' -- t 14438 * <*3k 4 WCD 001293 8M W | B t !9 n o J !9 KS3t*se v i g ` M B $> PCUJVTUOS J f lU i'jq t^> J*b fi & |Ki fi fj LI ?> %> w fe* f G CJ m L. A l ( .9 W J( M SI.' . lb t' n, W i`l9 > .y s * - fvj *3 iv> tji 5# ' i fi 1 E 1 ht :: * <*K * ! 9 j > $ fwii in & n t. a **l m && & - f-. ip >> r* jf . af i . ;> st ( l >` m&Bi *' e fi e V w fi\ *k EmrSit * 5" m 3- v f i' *1 ! fi s* A & 1 fu k i -p. r:' t CMS) tr ' V1 ii 1 fi! ie fi 1 6 jm S fi Hi S a t ^4 ) :U fi *TJ tv f i' Hi : 9 p il) * a . &f<il rt> f jH>?` P w 0' Ci p n i 6; (fi> f i ' c i wG # 1 3 rKl, & Si Z) g*? fi fi f & fi t> J V CiC l(4; m fi h w 5! te 3 1 *& 1 * # tv f a fi B C. & & # m s t 3 e , t 4*5' f i' m i fi c- 1 * f <-`i u. fi (aM1; ?1 r fSiI 3 tj 5 m *< 5 E fi V'v 1 f' Si e r 3 'C a re t i 1 ff* f i 2 fi. f> % f#!i : .c fi fi i. e 3 > g* 55 ** & t* O p fi etc si; fi <S (K tsr IW SO- ' 1* ! <S y <yf P ( *13 fc !>--S 9 I S1 f i iti ?< f i so <ii. M! ( s 1RL i ! Ccj tu i c* f? o SL Q t r- H j * 6 'S SG P f? P> <35 ! fi & 6* f"-j fi f* X 3 SE li W fei <tt fi lvi CJ >> 6 g 0 n O G & 3 g 2 . f *** tri A *0 o us fc*. f G3 0 , * e. S * ? vs inw e er *1 n 83 ** a I*> a tarf. f i it:a> 0 s MfpW I & 1i'i o t 5.j i? 1 *"*' 3 fi # pi* PS % r? 2 fi 0 B. 3J PO 1 f I 0) fi. s 9 e. nw C fi Zi t> ift ft?v * ii *; C tt ft f? >-> " * &* fcJ <S ffl te `l i fit K fi I a * 0 * f S fi* & s 0 * 491 t-i ce ft m r> K* tM* t(5 Q 5^1 Vj Hi fi ''t f a k f.i f 1 0 5* o a f i 1 3* * S$ 5*> 3 r& C *? ^3 G ! * 1 * sy t i1 { >> p> 3* 4 ei ^: P9 Si?>r Cmi ** 0 f> & o fi* r ' R 5^1- a <v 0 3 r i' Z I r ffl 0 9 S? H i 3 1 r. 2 fSi f ^ K fv 0 te m s r f? fti " & (* 3 fcrt s* -. * es*? fi 13 **5 f i i&. *> t l t** e S& f O c I o yM>:i ! i rv es s Z i 3 3 # C i, f 1 0 bn* fi C H i f i f o ,T t-* U t5 ir? Kt *3 "1 f l<t & a G (, S gl ps` Ci S* 3 s. & a f i' r? |MW "i n ><t PS 3 <S> >6. 3 tv M tei 111 C h fi 0% LT s Cl > Oe TS C. p to 0 f s -3 *1 S j 3 WS Cj M5i. i l (fi l i (** &5 ,15 i 0 S9 si fi %3 i 0 fi* f fi v -* f sr 5j tfri' p" 5-- 3 e , *^ c 9 Di y fi 45 0 3 H i of i 3 si e iB. P3 i t?> i c* 5 ft t-- f-- C* U fi R a' r* 5 ;- 0 0, <aw 0 I & f i1 >e. fi) & M Sh f i i *** H* V* * gS S &* 3 fi. 1 o r** 3a il f a r o fi fi 6 ti H, fi. di s fi M # M trt* # 1. fi ;* in M 1 s V s Sf 15 Hi Ea fi t : te Cst BP s; t*?> S*t *? L ?6 a fi a K, 3 r* fpi` f i' 0i f a w < 0 S r 09 f i. C,J 1 Hfi ai **, % m w 9 Ci tv % %3 > 'S i fi fi r Zi f i' fi fsi fi fi? fi S* y O li c 3 3 fi S1 & r? & r. IN G* O f ev fi ?, fi H i a i tk, $ & S& 0. f rv* p i' A fi* S? 7J f i 1 v f te Hb sP I to. fi iri <-J f i 0 Cl & Pi f tj* Si Mi f i m. ` & P i *S!7 ss f c *5 o S f i f i f i e* f i i Hb ft- l i Sr' 8 !3 1ye> '2: j te 8^, i ys et fy t- c* O wi* tfp 3- a y^. ifV f i *; i Si 5' b-' fi 1 u> (r*rrl 3fe fi A ?y J u H V o . s M> r r S; 0 *> * 1 * H i i r 5& ' 1* r i' % o f rv f 5^' f c nA fi* V P 1 Ca P-- Cl ffi f i Gr m '3 fi a e u fi fS* <?. l p fi5 3 fi 0 w R! ft* 3 f. fi* 3 D P. P ! U h > r t f i f i' C-J S 1 ft f f fi 1C4i. f fi r. a 3 f t P m 3S f lV f i A f t f i" 3> s . f i' f? f iSI <r* fi n* c f? s? S (S) fr-- Sfe &> ? #v f *n w v . ttj f? o P5 3 0 a VC S \ - CU 5 f? f f i ' a1 i *H * i *u f f i tv t te ti* si -i 8 P /* fi c ej p> f B. K H cr ai P* B a e 0 s f? PS o f f pj* IV icl 3 vC afg> 5 *1 li 3 a0 **** fi WCD 001294 545 Tli> dust sspi*it war taken *158 an implngor. the ovaroq exposure i446 eercc&ntretSoft far 4ha miners was reported at i 35 tippci. *n the mills 8448 i m i y s i s o f 4Svs d u s t sam ples i n d i c t t a d an a v e rs e o f 70S ta lc , 20 d o lo m ite 1418 asi SOS t r s B o U t s O n ly o c c a s io n a l freqeants of fr a s i l i c a s e ra fo u n d and 1461 fcteas ears too fs to fee considered algo!fleets'.; by the authors. Tits asdicn I 1 a ls o o f th e particles fou nd sas 0 . 8 ( a ) B I n d tc e a ta r end S5K of thaw s e re 1454 :-6o5 Cui* So dimeter te S e itln q e possible difference'In p a r t i c l e sis from J4S9 Sfta p ra t' ic u s s tu d y 1 3 8 1 . -ra y f i lm s e a la n tio n s shooed t h a t 6 o f 13 u t l 457 miners ouposed to tala duct ot on avea-ego of 535 oppef end id of 33 448S) a ll! 1458 worfesrs spassd at 303 wipjscf or raers h id png coni osla< 1465 Tha tele to hieh workers r exposed in this study 1373 contained cbout 1462 23% sis much traapllte a s that involved in iha earlier study by Drsassen I3610 5463 Ormsasn and Oalla'lslie 1371 conciuc'vd thet exposure et high concentrations of 8446 tala with lot1 concentrations o f trgsolite was sera haesrdous to workers^ > 1468 health th;* exposure at less concentrations cf te le conteS ninq nor trseoilta. I 3447 based on fch more fragwsnfc occurrence of sever pnauswconiosls in th second 5465 group atud&od. Kowsver a comparison of the to studies 31,361 shews that I 146 t ith o q t millers in the letter stud' 1371 era. In fact esposad to a greeter } 5470 <xeentrst!lo<t of talc 8SCO ppcf vs 52 tappef) they g a r Iso exposed to a 8473 grantor concentration c f tr400.itta (30 tippcf vs 23 appef) . Therefore, It tsey ) 3472 !*s ynserr&btsd to assies thet greater total dust exposure ses the oors 0 8474 Important single factor in ih increased inclc'ancs of prteucottonicsis ssn In 5475 S;H (iecond study. 8 8477 in i'H y f i l t > ase*ii netions, reported in 1043, of 22! aaie ta lc miners and 5478 miliars In Me York State exposed to tale ttiat contained alcroscopic fibrous WCD 001295 41 k p m V i Vi.. t j tt if . U LI3 iy j K J <$> b * * .ite 4 te 1* l i K s 88 tt2 S g i 1 ie $ 0 < S ru G 8 3 vn wn u ft# t r f gc f * >rt* Ite p f # c S- ` 19 S S*> i IIt 3) i * t;n * iAi g * 1 1 I fs U S tf s * m *1 i f g a * ** i `f. m a i- f p %S 9f f:fe; i i . 1 i tre 1 s & "1 .: ff g s # % > * 5 e f t O :*$ ft i. % w f & &'.! 9 rf 9 fib ' i fi IS cS gt f. $ 1 . Jri e f fte -%. 1 S U s^> 9 s* 3 * * fir OSi. i-:* Smm % r#* 1 C tm SA m V f 5 ** f w m * :* ST >s & ft t r. : #* fe* & - - Gi -t -f s a: g 3 m B * s a * fe & o* A S <0 So* ite m T ?o r-o ?f 0* SI ' 5 ff i % a i* a * ?S &* * ii $ i-'* f: f i -O ;x:3 S & * i # T r f B t 3T 4 .: & vs rf S5" 1 5 * wf B 3 S# r l " fe j 4 i s f fe . Ut 5 g '"o '#S t *** r5 m n V e. >' k. ?5 G *rt 5 ft* %e ite e^i :-r "i m > gm b* a cr ti-: i 'Tj 9JJ::' i f 5t s 0t fV t. ft. 8* IS 2*. r 0 A :f p (S I H i S vf F tt*. 1* e t &* M . & > t f'te f t 1 S a il ft 4f n re CL 3 * % *3 li s Sri 'F* e . m 8 *T r-' & cv fir < K i f*t_ n - (V t* * 1 <3 *7 % et & ft TS ! e B V* 3 K) -% (9 r Sa* ' v: & e' NB :MJ f i, C /> 1 f 6 f t IFj frJ ts r' f l ) 4 (S ca f 0 ;* f*. fr* rj C* 3 * O5 r; y j H rf Hb {A f o ft o Or? y f y 3 g r? 3 2 r) 0 f i c; f i 4 re ft *% wS f ' 1 y * y fr !/ * * r? y tfi** *> 0 * e- 9i * " i it K *a > `X. ti ru 8b J!= " i {SLS* P*. C-- f t -- **3t> P 0 3 U iO r5' V 5- f O8 ft .0 (i M f t iff f f>. V ft* f t 6-5 9 J , ite tt if i g:-* * rt w k6J 5 T> P, O - f* 0. **> > c*: l 6. S 5" 3 t> :*k i t* va O, r> G rt ft &> te >-> S rf f ; V: T? fc w> ir S'* >-* uo ts g 0 f? ** . ag r*;t S hJ rt : < ftj ii- ft r K f t 6 & ti s> - N *A K T ff fa o ?> ft r-: fi SP ff Xi 3 3 ttr o 3 tJ O rT m c*> fJi :f t (g, a 'S cf %S trt fip ea-*v s f f t i (S? ft y , R #: f c - U* < fe a n 3 Fi te ffc S tf t-- 3 ; U f t rt- T j ce *3 f t <*i* C` -J ft. f ofct j f y 3 9n *0s f t t . *0 I* y & s*-* 0 ft tv o y f f " & QK PS '<5 3 Ok . w * rs es {A eTM* f r ft e ff t f? 3 sa r f f~t-\j $ rf 0 ff f? fl ,As ft* h f i I t* t# V ii C. o V *% rt> fr Cv C" f t N 0' s pu 9 0 -> 3 S if rr P * S i? o S5 n f; 1 ft rt* a. iffl V- S fc* Q" 5 K* y t? r t O ft i ti Wr?j f t & c* 'i P "2 e ft 3* ft ft <* P f" b B 1 es e . t? r- g t.-*. ft* (S *^x> <3 Mg & /> a & ft D) r f rt O r 5 y QO 9 * f> 1 w 0* e 0" * a ti 9 3 1 f a ' ft f? K tJ f *? <t*x j P* # -` 4 i ft s <5 Pf * o-. K O b) t Co "i o b c J M re cu t j d bv 3 Ce! Oi f i i* hr-- (ni ** M s \J S3 4 V ft >V?* *3 f t k f- c< . a O, a? s te Os* ft K* tr .? **! f f '4 / f t-= 6> g t? f] i ft. rk *; * cW *d t : i*: Vi A K. i * >> p--. *} 0 O S3 P S y C*~* (9 M (fi .J y oeO <*> ter) r CL 3 3 b 3 t "9 en t-~> 3 e' "i i= Zi O *% O ft ff t if H a 96 Q i --e A* { {> t*> 54 CL <3 t - re o % 4 fe 3 |o w 0 f ft ft vi a I* t ' O f>. f t *0 6b 2. o .? 'S 6 3 CL ft G *1 T3 ft S \ O *1 C. e . f ft te1 <** y W rf te Oa LJ $ 0 rf S .fc t 0 g y C'> 0 ( ta u O 6 " fe a &0 ul >A 'it* & 3 tv 0 ft p? g fti a y c f IS (A yP: p? o r f K 0 & ft t o f t ** ft fi -* f1 (S 5 Si ft . rf ft Kl y g ft OB. o Cte. 1p 9 > SV SB Jl a <f* Bra. : v G ( 5m ri S tft dMJ! se fc S i WCD 001296 tu)i Ps so *k*4 if* *0 tt;t Gl M -0Hi coQo a3 ca X<>4J 3i p<4 19 *U9 o mVi i fl tSj< id >1Q <O oka a o fk1 J*&GJ ',m ec* O w 9 o^-9 <3Vk* 3U d0 X<j O 0VK) 3 X44 > *0 P XQ & 0 cO o s0ci X 9 ; 4mq24s 3 95*11 C1 --U* S Q SJ Ci s 4OJ 3 3f 0 kS o ccs* oo > P < 3 i <9 U*> kS SJ 4 #c* * Po k&4 j 9 1* k O. 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O) J*eda * q; 9 4 m S -k ; p m m ie ] n w ( i M o t | j '>s a * t |tio d m j% w j u e |f u n j iU w M p d N n KQ | OCE* jto^K|i)Jna> 6.TZ u o t im j M j k|$ ir e ; * :*% <t% p a # o d * * s je q jM j j y o f r u it e * * o b t m to n y e s j ^ M s a io ^ d u o f t o jn p jW J os E.:<.se |*Rpj*7p? .ss; sii jrswxix* 1 UM 0;S> g 1h* hi 8kJ Ci ts Fa M tt 11 1 Ki t <a ** i8 W i'"-* s Bata#as 5 lUal r-' t: M 1 )3 E -$ s a s** 3Cr?-`' f0t tj I 5 a et LD' .> ft t s1J?r C# rH? # f* c- f- Ef:--- ?S5) *J * *, tj O ly tr. "'r` 0Wfc fSt a 2zi ft <i0f e 9 $o-' s* S*i % 9 1 flfc Ci- a S5 l>r* l>i*> K s >f i <ft c_ IIs-* {a ft* 0"t S K I\5t VI et #** C:WS>l' i <SB SVt H* 3 4tife r.t 0. Bfrf ?- eg (fc r3 w S <t G, f i n M <*, se*.* g - r-s y; 1Sc-' 5 :-i . yrr*& * St t S>rf> a i e r' ;' ?*s ei1K-> n$- P*7 ft er h ' rO>yi et `f>wf a? Nmi (9. K Hc r `*1- , *28 't. ft fis O f* ; % C ft* 1>`>J* y* iCSt?-* SO; t t' fi >-* *y w:-r* '?* 5fV* i & 'rc % V5**> tT l 0% ; a1 fi fJoi* (i Br., * 9nl ft* ft 0. 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I ft Ia cc* t G fi* fftifit r-., ey *T 75 i # r| 1 3 i fl* 8gf t `ii 9# ft Bi r Hwf B r*, ?a? ff^S5iir St ftt vf tt fi 9if*t et * rj SS -- fi 5 ft Si a: i>>' i ft rr O**i 9' >i-*' fNif I <4t*ft ft W '1 (f*tt t* 'i fi f6 fi it-l 5' i % r, i ft 1i *iwS".1 c. < ft S M9(** # O Ws fa rnt S 2 <=rvr s $c i~;* ft 7ff-ri)$' * fi s5 -STt (i ft It f 3tS f i o y Vf *5 M 8 g fi t t* V. vK< f* %st i; 6fKt <e!t fi 'EB *V*, KJ 3**; a 9 ei <I' tfsii 3~ g aP#-? ffro te `^ Bt f JS S 1% m &f%> 5fi. o* Jft fi e* 2 -J tt o et ar (t jo n u * * * P WCD 001319 3.36\ d m suogiM k An l n c f M u s d r i s k s r # * p i * t a r y d l * * * wen t m s e rk w rs whs 2 3 6 2 SMtfc* * n d * p o s t i l l i * * f i * c f c m FEV l I n erS *ras s p * s * a i n s t-en f C ,4 7 ~ 235! t o i t O >r*t.|an* f o r n avarsQ o f G,,3 rears O ) i JZ m i fm] Ajz4* ! 6 :1 .K> *3 -i bCM 1 1r* g Ii. b *1 > '5 >5* i s j >u* * *3 * *3 m ) ! yS4 3 s gaai V i 1 3*p i* $it5 5^ 17 i 3O & i 1* & .:*>3 aSi % t* s* 1* b* **: tf9 *9 0 1 Ci S my * c *- s J Ic % i .1* k> nm !1 * -- r t' * *1 *4 *5 * Sf* a* I ? i w* <s4 & I1 Sk I i Si *5 *0 s r? fl * r --& O. ~* ;m fi & f V e -s a >4 *9I* DK --4 JB *# s* k; <B'rn. ct>f & Mi WCD 001320 J95 I M tia t M l t h t t wwrtwrs In th 8d75 atari? he had bae espaaad t o t a l i end vh e Atthouqfe th *y d id Rat oU*** th * gseirci in d i t l i i , tit* uth er* IdSj 45 V; g *0 $ I* f if r PI SO > * *0 fi li 3> & 5 J J* O VI mi s JEm S i*S K S-S * ft S a s4 ** W i* s * *> <9 ,<Cgi 3 p=> M W rv j <jr 1 , f* V g Vi 0 C3 ft B S a B '0 ! 16 JS S <* J tt * 0 S <_ 'S i S; m .5 p %* 3 5 a! 9 '0 M rj g O* V r3 . m c * se & .)? w VJ B sa r a S. < "i 5 w ?r 13 8 t t" w u. 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The 2953 m u tte rs ecrecludsd i h t t t e l e s c n t e in itu j anthophy i l l to w ith f ib e r s 20-50 <u)a In 2W V le n g th wKl'.Sb:tad .SKisilM f ib r o g o n ic o f f s e t . T h is s tu d y dem onstrated th a t t e l e 29! Sfcft o r x i t i m A f r e e s i IIos o r s b s s to s in d u ce d a Hiccrophugic respon se end 2953 f ib r o s i s Th a u th o r a con clu ded t h a t the presen ce o f a sb e sto s m in e r a ls w ith 2955 lotoi) f ib e r s ress/itsei in ibcts r e p ld ly d evelop in g le s io n s o f g re a te r s e v e r it y 2W 6 tlaen t h a t o f t a l c lo n e . 2396 C r e s s e i e l 791 in v e s t ig a t e d pulatonory resp o n se s o f r a t s exposed to two 2959 d if f e r e n t t a l c (dusts which contained tre s a o llte . line t a l c diist had s hicih SC03 aaKSant *sf Wiefesi find co n ta in e d f l b s r s w ith en evareqe d iam eter o f 0 .2 < uin. 3002 M h P ' d o st hed * loss co n te n t o f n t c k e l and c necn f l l w r d ia m eter o f 0 .1 3001 iuSss T V s i l t y - i i ' i '4 r a t a waru tsoch g iv e n a s in g la dose o f *25 wo o f th e t a le 3005 w ith is h ig h n ic k e l eontont by i n t r t l r s c h o s l I n j e c t io n and 25 o th e r r a t s 3007 r e c e iv e d ih s essms dos o f th e t a l c w ith low n ic K s I c o n te n t. Four r a t s fro 30C9 isacis o ro g p w ere k i l l e d end jce*insd <3 days a f t e r I n je c tio n s the r e s t wra 3CiO ssaalnsjcS e s t e r th e y hi-d diwd n a t u r a lly . 3052 Tn lu n g s os' e l l r o ta execs!nod 4 days s f t a r in j e c t io n had p o ly p o id 3013 p r e E ife r e tilv itcut i n f lesrs& tlon in v o lv in g s'lR b ro n ch i and b r o n c h io le s 5791. 3014 W ltM n few fiontfcs tha lrS t i . e l l y c r g y r o p h l. 'lie stroma were c o n v c rts d in t o 30t5 dens c o lla g e n o u s scat's th a t o fte n deformed the b ro n ch i and b ro n c h io le s The 3017 in v e s t ig a t o r s found th a t s im ila r p r o li f e r a t iv e n o n r e v e r s ib la le s io n s c e re 83 ti G C fi 0 tn vt 0k U ta 2 91 f i XJ a0 U $ W 5 o CV XJ 0? O --t 25 <4 < <& am jr 0 4 o c* 3* ri o 0 sa 0 Ai i"! 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Ti * w S c-4 M M 's >: w t?s 5 o 9 O d te ta t.--; *0 4} A C S9 S t/ U 1 s* 'S c1 &A 8 3f u c i e: .* } vJ > 5 9> a *> V -l Vi C 1 3 S; ta caO ` J v i o U0 a A g V e es 5> f i M fi S3 <s ft A 1 o ,ri O i 8 c & 3H se f t n< OA c 9 If i i I. a t tn & y s t & m v* p 42 1 e 3 a ii g o 5 4* -0 <S B i Ci S 'i-? Vi * g 3S t l" s *> # c i e* 1 e fi 4.-9 e a fi S C2 te , a fi > m s So *-0 B% '. w y> C;) I r 3 2 :<* a ' s f J .* 5 fu i 2 w L i *^> : 8 *) JO i 9 4J " x: ,f. t 9 O *p !-e ' M S & Va 1 i y s^ 30 s ** w *3 K fi V K fe Sd* w N-* /.i fi g V i <3 **4 t i . 55 0 y & Ve * ? %-- oo Ti o fi V " S? ?; vi Vi i 0 *1 0 <A p* S3 G 2 *i ** e& avbO-*<i. S** g u 3 d :i gs Xfi 1 t: F**^> .'*>>4 *JgAi vfi 9 13 1 SQ* *v>H0J S* */;fi 1 i) S fi 1 K Vi Tte 9H ,3s fi e> a 'J, II H tV=S-3i f t o fjlw lo 7--t *" df@t 1 *2a- teV*i * \S ffTei, c* *.a 8 6 d *L-- 8>ft3. ' >< a 2! Vi 4vi; ,- 8U 1^*i-'3g M ':0< 9 S te m $Ov o3i*>i A(fl S= v5C<-13f* VHi y0& Ve 03 sg 1 3 s I 1 5 1 U! i i g ft^*i C* 8<*1 g s i(>0fi et"r>*. 3 in 'OM> 3 is S Si O* WCD 001352 3841 in hwMrt o r mimai s-. Sa s tu ti& i h aro boi*> .oso caa ccns i r a i inc th a t p5 U bi bi b; ci & b? a K bi # t i* b fr H l i fe i IS *- S 3 b i & U 5 $ t t 6J Ut sS tt SI A ! lo ft iS bi 8 IKa S fe i -3 3 Mi 1 pa> i- i 5T >. 8 Sf 8 ! te * t-:' % K fM 8 1: a* 1 r : * 3 w8 S P I * O t a ; f i s> H* s ^4 Z f* fi * f i * U > '.J `S - c J Si r t y & f i e T? V - * Su* i I C n r fl : g ->i r2 il 0 0r r Hfc ft 3 te* K i (*> ** 0 Y m 3 *( 3 1 fT 3 3 V `m 3 : s& fi s afe f : K & ta f i 9 > t-te r? b n fi te 2 1 s ... c te* *5 < 0 f t 19 i & 1 te*- I f l fi rf k i* ** r* 1 i?* * & X jfi s SS G , S' 3 H* f i te* t . ** "S S te ' t* & ii' er a`*1p * te* .>, ** l>` f i f I 3i i-5 ft zmiv rt y ft i* ** ?r 44 r 3 i-l; g fc* S te*. ft c: f t t t*:* T 1? 5 te 0 2? 8 :: ft f--r. g --: f i . fi S as la c** 0 'J * # PP * * r. t- "a f i r^* NS S QL Ite* G Pte 8 G 3 f- i | F-I :* i f . ? } : <* m v *0 t= * M te O fit ft 5 %S ft L f l rte 0 te* s * f O h * < * '5. f t l*S 5*v y - ! fi * 3 1 13* 0 5 s? ff tf.i & S H * ' s f i i-* w *< r? & - <* j ** Pr a i O ft: $ te * V- te * < >5* lu ) S' " i f i & 3 n i , ' fte te % Ir i e; f., a 3 0 il 3 Cl* 1 f i' s S 1 O " te V ` & J % 3l i G* 5>y 'M f i f-> 3 f* li E O Ki r? ** S G* m Q. Gs r:* 5 3 ? 4 r t' f i. r- e r i- *% t to g P t' & * c * f t ' CL t i 4 C- te*> S f* G t te f t S j- a e s ?te r . 0 h a t. c. < f G*. S T i G [ O . lit c . r i* is f i i (S r* O p= 4B "; rt S U Ci t> . 'S3 il< 8 r* e t te*- I& O *? i# :o & r i* * f* f t r* &* f t C II ' * . ' te 35 SC { 1 D n. <?* r> y 6<J f t K ftl e. w y S ** % r r i* r* -i B et te m *ft' e -* *c S 3 ft *?< 0* * - ! w> D-- <? rt w '% b O$ te/. r? s ft Y- rt 1 f * 3 ri , f 'i n frii e >/ e **, i 2 Cf a c-t* e y h V i a q . w. ft 3 Cl & r v rt* ** s t >- t `1 e? y fi :-fe 3 * t **5 3 ** n s U tr-' r t s rt 1* V * NG I"1 te e >* t* t*o Mi 0 . o K >> U O0 h SS r : -3 P 1 rte teco S-a ftb pp s-S 3 a I r Vi teg G 9 <- i i te* jT 3 * 0 te 0 0 0, ft, * ' -r s "? r " -s * o S:K G S & e S ' tn f i ft ft b *. fte Zi l. s iT<J y. 0 l-^ G 6 r 6 0 (8 >- gS 1 & * 5 u& 6^ r i ' c te tu -9* i l 9 * 0 , 9 {* r? a 3 t- p* S . te T m rr e05 1f - \ R f s f*) 'P i r r s H* t c >; 3 fiS * e> ** % G LV f ft X T 1 e> s I* O 3 5 * ( j lu f* I M (*; S te* f t f - t r> I I (* te M 0. ft te- f t se ' ^* 0O a * f* o A 0) 3 O . f? 3 a 8 rt* ta f i a Pi* S) e Si P& S P r> f O rte s fV ? 5 & f i ? K S & 0 5*j rt C, Et*-o> L* >3 r- i S p C C` a a r - J l* M S ft fi C te 8 13 p i* s t a te 3 .s * s 8 3* es 1 Sg r-,4i 3 *t-> i te 0 b) V I t V. r i & O- e * ft 1^ * 20 a C- te^ 33 if 8* s r* - fl? p ii 0 V* t# (te O rL*t T2 T t* K S f* c-: g * 0 ri t W Y *; > e -0 w i a T l IB f* 0. 0 r i* f t 0 r? fi G ~> w Oi rc* ha s fi ) ."5 6 rs* w r;* t* rt* te * r i V. ti) 3 Z N1 * c* Z S C a # r u ra> a *5 C & <*) t K ter t S f 0f t t s *1 r? rt* 5 i" 1 a . ft i* C* Cl e V) 1 S r* c^- S S 5 t> * OS 0, 9 S 1? *< ! 0* I I 1* r* p*1 & > tv -j 3 i l 0 a e** " i te* i s'<* f t % 5*--> f ) C M 5 3 m a a rt 0- fi. r y 0 5 b a Jfe G CO rt* *L y te ru pte fs WCD 001353 WCD 001354 ch*rctrlcd as fra* o M tbaatss to a ra is producs autaqarric or t a r a t o t e le 3 5 mfimetm i n Kuaani o r a n t a a ls . * ? in-- nr af.jBM ta.aJiiaoaur..aad-Slfet; ,*50 Hw n tim & B 9 t aJtpOKisr* 'to .ta lc prasantarf In Chapter H I *'* suaaisrS. ac in 9861 Tablait l II~ # and H I - * . I oo I 4 f 1 i SUMMARY OF EFFECTS OH HUMANS FROM EXPOSURE TO TALC MOT CONTAINING ASBESTOS OR 1 * FREE S IL IC A 01 *4 $. *JB& U W -- % 4 i** * f i ft :- '* t as * i in t K b t f t 3i C 8 |i 11 1 b n s s s x tt * t /j > ia M * S3 9 SS C M o n * -- e* Sfi aa s ra $ y* S' i r #* * M* ii * # 4 s > ***s -1 X1 d as *^ d< *a rs fi 9 * 0 *>. " d 3 * 0 >* ?** iSl c* SitT t 3i * ** 0&o o "1 0 >* >i* > f* ** s tc<--s<e!3 r*G>* v* o, fE <*? ft a N ***$ i f r* <*5 0. & f a ohi' l>lF aS I G gT *s *. o f? * :- Ml H * X? Of SSI a fj > -. V ft iorS .; ifc >s> t* t~! (** < * *Ma -- O O >; ,-r v> 2?* 8? ** <* at 8 !** 01 Pi l.iS >? p! a V i 3CO ss vn -- O sNO c r- fftt * * ooo si :*" d> f i to fe * 4* % g* * <3 ;** tt : ' CV 2 !S & $ ** r 1 55 S f i e $3 O 'O c*, ' W > *' A* s :: w t* a c. *n -- # * IS 0 # f *2 ga < i. - f f .-> t * f *G * <5 : aI " t? e , 3 * - t* C f. ^ rfPt isLr 3 * f t *> < 5 '^ tS 1 <*' * ii on f a; m?ft K< eci it 3 WS N* vo * tfc s. W * *1 1 W ^ S-T4 *< 3 ^ w *n a O J3 M. W 1 K * w -t I? n sw 9 fi tt --A ? 3a u a3 33 3X *? < * is * u s &ys oa s 3 5 WCD 001355 9SK)0 a O M eoi 7FECYS OH AKiSttLS EXPOSED 5S TfiUC BV ! WKfeUTHH Kl K*vi>&j -3liKC3"*i 4fkc<(J*>l 1.?r tj ft-; ^w 0*3 :m ;g l t gf isg $ l 'K s 'S' f ft S g & jg &&&& /I g 'hIVts 5a p8r1 e t?& h f-j S3 c*-? ft O s p 'T* f * Kr: WS S i r> n 13 a aO ru y NU &k V1 1 3 3Uru U) *\> u ui -- C<1* fs C> C* * w<?. rir R f s. a i*r fKt S*3' Se%.. ft-Sa ft Ni 1V55 Ni V !; f*? ' SM ^ (* g0 ft-Ns%*r, US {T KJ V <ss S & S M* i b y <7 53 3o *ot3y ^ft 0 ,0c: t" f"ti 3 ff-e*?ti 3r? 2^ *ac<s -y'ot aw ta*Vo- c tre^ft a i t?p- *"*a to~ >*n-ftec>t *- a *0< 8 3 up**jt* -UJt O O 8 Ose ft b? 9 Iau *0aDt r**a 0, >?e ^ Sf-t*iiIj'*gS: 1Oe3 *ts ct Xtoi ft t- - fCt f"0ti*Cra c9r KGO<3>`33f3i'2-<eSh)>-0cfXt5 *>0iSl"l:i3i**--^j>*otSSffjf>i:* G ft 3 53s* *1fS*>fCSt*S*<sD ii M./5 3 S K3*"O! r&3K K{Si J0lj v-<C"r>s1?&J^rr3'.7 r* ft 3 r* W9 G O3 Wi*P--*O a g>s SB*gg 1' tt-";WiJ ' `( ua> c>C**T"f?tHtxw*>**2wa'i fS5i rC>S'W P- S on&3 r?cwi G- ` `sf-t*Tt3-^ GG * >2Ci-o^s; t5s*>nt & *! *** *-*a*>! *% ** taj -J MO TM -*w>J *+r+O $K *S OS ft >> e ?i Tro*a<or3- <5r ps fNtlc\ S 8SfZME<->fSNt y ** rsi *a Gfrt? Oa*1 3<d3 A3ft "i iiisilll .SS4 | * *>m *t sr*i* s* *i * *t.j Xi .. . - 5* H;gr G3 &t-- 5. r - *srir*' &ss$*3t 5& 9 * a * i $ 5 r i' f. t"* ^:-* s,>fs ) ft O " s* - 3+ *- , g? w* eWfcca* CVS- T ** a ca s is. ^P tsfj a ls t t 5 r' j -, E1 t 4*%>i *y*"?-r ,,,, f &i *# n- 3 . vj * c* s - r* *9 o; f ? Se r* 3 f t > M tfV Q MC %3 ** {USi fit f * *:* i* *5 r r t! g.? *~ G3 '*3 * "*! ? U) OK I M0(kf?l 3 fl s 5s*|. -J 3 a: ; 3i r ii w | l*> U al ss SS P- O unif r? ?ft *iUm+ * ft*' 3ft s n 3f t CO os CD ca 1O=j Q* Vf* O \CtJJ *fJ& -W ^ a O _C_i I e-K S a M U ft ty V Of*c> r*O** O Oi *a*s UO-JKf|c^1r*ir*4O^* S i i l i IsBTIg Ii -ft SKJ* 1 < m _ vto wa Oy *ws 1J18 >n k f<t5 f If-,Ti- fMi.iXi 0 -~-ir-*= ris -4 A f i & >j $1 " , Vi>JB+r-* :e ft- *r H ' H ' a fUti I iy *w : , r & ( cf#i s ^ tut K i* * >** s3fi T* 5 G l\ *9s ta *: O. ru r-j U i *V*?nl *%i`!< mHViri Vr o K ** S 3r &e 4S Q V BIS ^ ! r ^ Ci V b >c -\*3*' e >; s * /e i CB HE & **fcs ft i. *ft* ce 2f ? Ht flt ia 5C m n Tl SB Sw t P tft m> f(Vri/ Cl S b E i I ^ rs WCD 001357 3743 Jejr9C6- Ss irsquentiy p a a 'tio n a t i o s>sarre Sh t e r r a i o f wpociScn in h o SW sesspirc ferri, f o r feraci c o u n tin g euri s i t i n g o th o p a r t i d a s c o lle c te d 3747 C o l l e c t i o n e f c i s n e y i s s a t i s f a c t o r y down to Sha i ira it o f solu tio n o f tho Via $ ffce B u(2t2at os Sf--.EU u < <i% a _-j< 75* >Ua:i ta-t foe Ot3Cs&mu i r0*J 0 .G `tf a c f kc 1! 1 m s c< TB5t 'S1# 32 i--s iy'S *t3f.t WS* ae V*6J u6 y 5y* ,** 8 0 gEew* 2 W c&a Vc m 5guoS n cua a* ietiaoi c >1 mA3?3<3* 8w$e wy< 5 -8w <(-3 *<c0y *tcWUv# S&s>;r h4* Ai* s --: >tyc!srWyit 1*j $t;*vws t-3 sV9 `3J GS*w< *Vj u e 0 Ots.Ti e* A*t1 Qif 3a w 3 1y & s $1 n iv3yl S* *1 *CoA;yT 5 2ci0u u uS 0 tUfl K O I H2 ACS C> VQ?S*.* Ca* 3o ,25 cci-) 9t *9w4 *u** i <*>4 f3*fG 8 Era vuh9)J coK9-} * i) 1-- w! M 1B y= a * a C* 0 T3 0 . s--* fX 8 tfl 'ft wA5iS 3 mH O; M& U .tS> "1 (ft n 0 /i*J m t9 fO4t 6 -A**a44>< Kw& 64 &'rfi 1 aIgff S. %tC i -*> c&S.3 f&*&r cUi& <c* Vi is> a 1 ietai>iia r"i Sa J<V--E.I5 W 'S 0 t I0. r> 4* i aj -> #V35i i9c vIiXt 4* <S> % O> t-+* tu *--MAyst0c*7i o0 *co*} oJ wte S>-. a O < Q 0 1 itO uJ Vcy <> <rm 1)0 fWe' "a w% 91) *e w Vf! -w6iSff7iSc7tt M5 TJ Ae3n .4 w A* C o O<3j 3A & i* 1O ti --33 g M 9S n ir t&u>; eso OU 9 0 Vi *XMJ *0 O <S3a `j v*J 3 k A-S,V c>0 j y iy y 3U m ff j"*t 0 c5 s k ki sa1CS a SOy3 <M i g, f0 g5 uLj *%s5 *s i4*5 i S i * 3 fe- eg D isr .5 *m4? tj a 3x: y w0 c *1 x3ta>n *U4 >cot.Jf4t 0 * s ufftf SJ -s0 BtBOa *&f>l 4 *O31g3 bU wayfPalC iTswJ?t 3fol$ xK:i o fUfe-i S 1Tl IOIfcti 4V* S 'O ( Py t& %C.a C Ui r.; L6ii M-j m ian otyft 1S o Wa Ip- * b* & JAOff *c0 Vf ry * G SG` o (sakl i 1M5 h>(j JZ <* <oStr 1 ^S*i3 *O> yQc5;3j HS 'tOaui <Q#f> ;&: <8>h3 "0 cV5Si:jl;i 4 3 tSu sy S B % 9 *>?>- < 1E "J* A rSyoftl* VJwS 8 i*S t Vi s 2 5 Ss V* 5 ?VI* & Srt 5; kVi Rn * S 4 s> s Pi RSi'n* s R P ? M 6" PVI WCD 001358 3T9 asm'isBst in 03? 3 i. 'ih* o fc iw ic y &nt ( t ^ U c e U s R o both ;flocs.3 o wst uJ 1 A# **l (49 w*.* S !S ta U*5} 41 9y O% y u S3 i3 g g t/ 0 a mH& Ss - 3 c *4 8 K te <-: 13 3 Si 2 a y Q ae 98r fzr>tC*> rStis C**s n tra. H Vat g i* 2rvT 5fe S*!* [A .V fi Se:: fSt t9 ** rt tKi * O 3 s&ir. fi g* A. fXt i ' c c 9. 3 OfJ c* S <$ i 1% A: ' . O1 9 . 1 ) Iff1rt**3 o 1* 9 cto c, Pft?? fe 1. iTb &2rt "i 3?. t*t i - 0. oti g ** tteJU n s &3* \3 3 # o & O t5e) 3fr--5 <9 O t*e4 fr*l cm O>n f i rt Cy . fij 9*l 9 e. Qg IM** g& 5 i3 O** 7? f5r?"*. H fe? 5*f!90nP3j* pq oj9tt O Ci fIftc C^ r5t 99CL, #> e ief- t0* T fPt? C. fri>* ?5 V fi S !*' 9fi, SC es*> Srt* *<T-o CWtaSi {a*. S-* O y&R rwt *Ri S* err<r*i* OU Ip*-> fni > oe O lf0uvj > t3* % i ffr w3' fej 1 (K t**, PSi fe 1C3* 9fy & O 3 ft Ct*i>- SfO CL fSl c&m 1g Cla *IS*>- s sPi tt n *a* e:yO? W 3 * ss-$-o IJo W S U s, ta?i. *fti eu f-*''i t-O fotot S G ft i-afc *P>?* il CTi 1 t--> h Ci l L> rt* er*:* w -;. 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H * g H-- G * I. n :: 5 p. w 3 * >k c- 3 Osr < 0i?) , fi a Hi 3Y -i 1 >0 3 I> 1 3 3 * *> - C es ft A* f 3- g # r# c? 0 B- f fI It* ta'4 S 3 1 i ss t* 3 4 et* a kV r*` *3 f* (f 1 O Ht Hsr t ft* G& * 1 SMrs* v* &$ ft. 4T p 9 &: i? 23 ri* K CS fe ??* I ett* 3. @* o S V :f-at i*:1 a> 1 H fe Ct s* i ; a g if 'r*> r :> ft O' 2 B 1 t; . cCeT* 3ft. f "i P s U S pt* # * ?fftt I ,0 *r *c a B R ^? 4- > ft W if ? 1 H g SS e, a s i 2 m o. e.hs- tff <s fi T :? f ? # * f5. f s-> 3 <t 4 1 WCD 001365 ` t K 5* * ' Z &2 Ar A V5 0 % E5 m z 11 " .S5 1 3 I t I2 * -- Vi I 1i !g 1 Ss *g 1 a - 'i I <-* s SI ?s i : J U % s ! 5 s : n S SU - 5* S % M ^ s* ** ;' f gl i t i r si 53 44 2 i %* ;! i si 2} ! l g g f s w I f s I I y %`V* fc s t I K: 8 =I 4 !! s .. l 1 !I I 1 I S I 1 ni I ir 1 a2 i i 1 * 111i 1 >** 401? fttnwtien # nswpfcasa ton th* srysta&s a'hiatati, Trh*rwsqsr**as f tais WCD 001366 vys& *j aio* muthx* q us ?*#|3 j M t j j oso* & <& > t: ss 8 O$S O s OO s& 5 ! ii2 2? HI I , * 3 CI sa . 3* * *s e<T 3 f S, *1 a. ** A9li 3 s tst* ti |<*sr 5 SI >rr ? s . *f|i *., tt - t tff r:i-- A * i & 3 5 !4 ir $f*t>, g tt T* m2A *T* ? .9 8 fi 5 s (?. 9 6 * E &--' *t rf J# si *r* ri* ri* ca--1 % p**;. & *co<**;4 <* 9*S*i*. 6* Pv;< 5 "1 & fSi**" r* ft. && f; & B>l fi. ;t Hr, 3 & e** rtir ri *% ir* g' Sr K ri* C7S 3 &<e0> .-> MI j ir # tafi 4*** <g' tT*>5 Hfrri;* etr*i-t**s fKi dtik *c"*a> s? 1 g l8tit CrLi**' 7oi-- % >3 8 *tr9v ?? 1ofTa** f3i.** -sr*vs* te' irrr*=* i*1i ta--i p> 1* 0 Si *rs (rr&4w> *a r)I!"* ltit tCS* sIftiti fi H<%05' ra? 5 ?& ti* ** Ift >* k fi-3 e&t $ gre tj `"* a 1`rti5* >* rS.-. oK ew 8ItIt .'. C>? o f? e Mtt f l ir. S S4v. 2te.? ftct 1* Cr &Sit. r-,f S f(rMi*fB: tStF y& I? et 7 vt; (C"Oi ft . h f* XI 4 73 fi, c* p e &a *0 ** Sii * **j # |i >a* S ri1 Sf tt f4 I * I I s(lif :' <# ri* d *5 ' O*> T* i%l o *< ;-o H a o I tir n ?est ab i|tmsi a A `i WCD 001367 gCw .*s2 P * y -U YV * J V. %1 ; r- t/` <-3 il .- t* WTJ 3^ 1 .`-j. ?<* -? a il U 9 ft. .8 g ?> V e> * v- 9 sa 1 O i u V Si a * W i 50 issi 3?> tft jgJ a W *0 *9 O Si >< 01 9 >5 rS V* U i&S' % rt T_ k. 3 I f ' W . 3 %*. * i -; ;* *c a 'fl 4P S Sh i <-* 4- U m sa 1 O va c . SP R s * a 'D - * ea* rv, i 4 ?- Va <*"C a g 0 9 er: W. :: s-* SS es M t> c O 3U & > & > SI 3i-e &> - K a u* er*J f i a.` "c L--: S 7- i S 8i s * i L, -i a g 4J *>1 ' * S t I7 r* P --4 !a 5> ? . & I r . OP w-1 v * A i -t? 1 s 5 f i g IJ f i 1 c t % Jfi O 9 < n fl <%& *0 y s T &* s# ** 4# r * S* S % *`4c*5 ** > 1 g IV p - od SS 8S * # < * tr ** W> 5 41 93 I :- a fi 1 & 9 * tf I3 4OE1 a i s e deaet'ifc-eif preedures f p re p a rin g nwifaran f i l t e r * h a procedura# 4083 h w ith *brns f i l t e r s a re p r e fe r r e d f e y e a p lln g c i occu pt e n e i t a l c WCD 001368 SSSsj p*pu*3S SSJfi Aq SJ*5T SX ftwnwtoa Mis SMOMHilt *#s *r+ uo uop- *q uso *r**q* (xtw p xw p je# xtsqss <xsAt*u sh# * fk KS "" O ^ i s a s *m1 I 3 3m ft 9 ' ** TmS ^ I9 V*. 3 1-i >* it* t*s. * ,*t st 8 ct i* ? * s * ** f 1 * gi 5* S ai. m c*t *e5g* s9wb %*g f t <?* * i ! IS ft ; 3 s >* i* ' O V :* A <? 8 f I IcOl' ft 1! H"<5*e <>iwt-f* 4 ?A<. r, A.J (* e (> ft tf * sf! P* A l- I sr I it 8. g. f *S =--* 5 6 g* 1c HI"C5 * g 3 3 >-> 3-- rf & I 3 3* 3* w a Si fi * s-- 1= * g* a If* <3 9 fis, f H& wfi* * *9*> Q I 1v 3 f3l* S* . mf & **"w-f*c 22 -fc f1ti' Jf*t fWf r H* 9 *Si*=* t- ** :* 2 v% >* aiFA X*fe. i O* 'a2t Aft C>*t g S 2* & S 9 vS i1/ ft ift' ft O-, tf- ^lCi' 2 i9xt tT ft y 8 w I& r# t SB S cf G 1>f**t &>J Qg . S-A* S fSt>o ( * J r Xft C fiftt >9HGA. f 1 B* 5-- V**) i* PftltK t; ft txi> ft s**> m***> e>*t tli nfgt: K X Aui- ft9t* * Jfc p*Vl6 9%dma yte-p a S tjiJg p*!* s pue sys`4 juabdu ,*3J, piXj* r> WCD 001369 4130 q u a rts c g n t m t t s itu a ta th * sa*.c*trtSon a? f r i l i c e in sorter i r 4140 o r M u u r l p h ysiels^ S .* tanges in orfcsru ah had Marked In t e l e y %Mo8S5n>-14i V8*. >w*; c y o 29ft fta 1 Sri V! V (0 V. & 1 vsi (5>H '1 H vsSseArif >hS *4MMVf=**aSl #K 8 3? c3 I i v$>J i w S 4iti i? $4* <0 cf-3ai 9; -%#-.-ji JO woc X5B *--V3I.:$ 5c:i --V*VTccwt<3a*:s -aoc5: Si&-fl Vm '<3 <8>3 1 <** * 5s%'%a7* ta s m 9*t V**3. 68*1t 4s-3 *.yV*90J J'j.---ScV c-: 3O 9J 4Bi v>< m% "MW-f*i. * iX*1Jwy;5 4s . 53 4* $"40 ru(i 1 Si JL`nB" 4J> US S* J <Oa B'>j 1 -J &fci, ja-i J Aim'sb*>i 4*$ &rt ?* 41 t; s BCl 9e vSs 9 41*J8? *5) Bcs It !rt>i *s*n3 s9*- '- C9 V9 e5a 1 iSfrt 4<?! PBJi .<5*Js ft % T J i i N i# 4X1ft c- / X --5 ^cc5 4s17J X fLtf! m V5 hSSH-3s p* .ff ?- a 4V:f ?t 5 *t4>i '>* V.i .iS-i r^*ft O sft s4>f-*Vjt`S- J*J1 *=x3 k- A4Wl Si C J4* yi>es S5*k ".1VcJ c5?0 MO 1Mo1-D I As3> pfU."fttt*5:. t0r8i M'-i .4f*2t 5U>i wc1<AVttV"?32si 9Si *VSfI0ti' 413 --t m S%ft0i MW! 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O taa `tyii Vi4sf5>*-i: As3 By y5 ft n ffa( ST ' j BS7 ss G' cIi c A1C1l EB m J 1g $ Bg a **:-> # h>ih i 9ad1 K Lft>tj if>t m4<19S.U"7*74'*-?,L 4w99P <m>s4 4fBt-b 5 irft" ft* ? ft* WCD 001370 l J t M lM M l l M U tf m H W O 'C i S I 3 1 l | I W ( d '| * | I U p v * * 8 ) 1 1 8 j a t j * 4 o s sospaj: -55 p s t s y g iu ) s j j m b u f jM u y u * n e u * j o b v | A ji 'rs y J * S U 0 | ) B J ) U S S U 0 3 W I M "S S U p f t J ' lU lU O . JA W * 2 8 ( 1 , 0 A * < A S * %* * > A* J * /= 5 Ci d *^} *si A. * c 5 W W s - h PS t t e i aAA VP S S * `7 Uj 0e r '2 2r t Ai g <5 35? & B^- < * S f _f ** { m r* *-i; ?* rt' 7 N- - : M If p t %P = J 3 ti S If t i > G S*; L ^!> Jf i * ? fi m; r-o i I 1 1. ** G 39 S v ; :> r' s <5 Sw. O s fi % rs ' H m c. 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Mb IK ' ** a 0 fr* - f i ft w - 51 1 3r * a -> i : W Sk G . . ft* rt* 5r fr8 1 * O ft tj 1 & ;r* IV n H S G-> &* s irt> f t ;i * 3h te fi e ft ^9 i 'p i* G, 1 0: w X> --' e> . i> w ' 1r r t r t 1s * * L** f 6te S fi > > r t *S ir t r t f S r ft % r t t t Hi i*U 9 .. b ** s Ce* < rt rf S -T t "8f t S i H rt 0ta IM r> 3 rta: C 1Q> w c*> >* 29 f t 1c : r t r t fc-> # ft rt 3 G , * Z O t* R a M rf A C IV tffi r t u V3 o, rt r?t ? 3 te o re* 0 rf 9 1 a fS* O > - r? * ta r't.>* $ ' 0 0 ft& i >w 6 f 3 e l es @* O$ i s r l U* 6 O i, ft "5 n t Q ' u; rt* 0A A $ S I &* *H1. K5 N e S*` e t G. H. f t ' rt* f? S' 0W e r* r> % (A 'C rv 1 r* SP i. I' A rt "9 * t G \h rt 5M* Q j 3* e> > C >=- r-\ U9 : 5 & f i ft O. O > t-- ii ft s & t5S G k G - fi m * t ir t S Cu ce fil! 'f t t* -- rt rt 1Si ft ft rt* VVi & rt J 3* K A t. 0 . : w *1 ft | )W M W 4 p 3 -iO} a d d s WCD 001371 1% !i &* & ** 3 i fe K fe a. JU % Sc S*a IiI I s I I 'S 1 il! I %^ k d* 3 c 1 Ii it- i I * tl/* U" ) 4t - ! 36 * ? I if 1 , s i' I ^ e -y * ii tV, ! !s I *J iji . i i s S~S -! a fcw <3i s* # 4i? J3 * I n 1 IS </j * & k; ?. g lZ a 8 ! e r^- JC ** * - a i I t 5 I ! i 1 11 1 1! ir ,,s *I V* 3 s If '*9 a h * 3 5* *. * v*> *i I!1 *- 4*5 I,, *c w t ? fr . n Ifc &1 I * * S S * . 2 s: 6 *? it 23 S 3 3 3 % S i I K I I fl S 5 ; I g S & HS ID O.' S WCD 001372 42112 4204 4205 4207 TABLE IV--I COMPARISON W DUST CONCENTRATIONS (MPPCF) IN TALC PLANTS IN NEK YORK STATE A. Plant In S t . Lawrence County 4213 4214 4214 42*7_________________________ .19 *tnM 4220 OrU lin e 4221 S u d d raj 4224 K iltM 4226 c n u h in Q 4227 Screening 28 n n u m 4229 CJarnar* and **p rotors 4233 4231 3 law ro c 4232 Open ch a ts* 4233 ... `_________ O ld <lip to 1945) ................. ........ ..... .......... Low Med H lq h Ay 63 413 2 , BOO B IB 2 30 475 120 22 09 690 iao 43 61 136 69 32 75 271 92 50 70 728 278 26 129 5 2 0 151 115 1 .1 96 2. 480 1 ,2 2 7 21 83 440 125 New (1946-1958) ............,....... Low Med H ig h AV 0 2a3 2.5 4 5 4 3 13 360 32 8 35 68 37 3 15 40 2 0 3 10 21 11 X, 17 9 0 24 -- D is c o n tin u e d Jl m-- o?i H X * (-! Jffc S &M kS s SS * 33 a* s <Ssi i `" s. fe I I r* C S.i p* *0 I* 5C --til ?i to ,. ^M*O*3*'**if.*V) * n o o * - tei '5* S *t *n tri $-t -* o -- iv : *0 C u%* ft ttv st.-nitnj o'* -** k ?-* r-=e"s>S:[<t --C* 4> 55* s*e; ^ * O O^`43M%ttIf*itpl>o.O*n y f i C<>! i*4 & v*3 ; y t O. S % i r>* i i' O O bt -r r-i I? -u 1 3 ca ca?t O*fe* 9 jC C I c JC 9 - U -# -tO1t5 5M1IO- 5 O <M^ tn 'O r- & o - N f l t i r 5 m s5w s * s s s $ s: Iv> 5s i? c !* ! 4 1 m :- o> *> i Z i i * t W f I I . efi 4 isl 5 H s i * ?% t * > *3 i ft , t <0 4--- s ir-i *;'S 3 V u 0=a Oi S CO< -o 4.* * i VB i9 V A **1 \ tI 8 y I i Js jfr aSt it *4 O :. - t US i** fw> *% i I 1 i 4> ! r A m - n(5 "S M c t* 4* : 4 1 M5 i G*. + * !a fh (*S * f*t ns 1 r WCD 001374 a * u* %MNii*ue jjj n i f f y i. k, y-J tu iif 4 A. 4k f t is* Srt w w 4- ft- ft* S i k* * A- A-. 1 Si 3 5 ui a s ig * if ? J * * A 3 |i| r* *| i l*i.^ H i^ a | -o J-* a ? ?>* ft * i s s K l~ at COMPARATIVE TALC DUST CONCENTRATIOM (MPPCF) AT VARIOUS MINING AND MILLING OPERATIONS A-VI 5! >* un M g i?hrf m T3 ~ 0 . $ w& I? (*s1i W^ <?> A k * to fc* ? .'J fUo UJ W Sy m W ** O -J u A U tft ! K vs* u 1 sri i j i S (ft4* i'>i*J I A O *. tV o ' t. x kv K V A* CD <*3 m ft a pu* jjn mi ) uoiu*a *TU*Tt fcujJhpojd WCD 001375 .aVfJt 5* <MW*r3-l ttel r0tj JtR g* p %k*1` A3c O4c .(3 Xt' 1!S> %t#Se5 ft g p3- * g J.ASJ* `8 A55 tte> M*Q3W>J HJUZ sti0l* t <5 0 Ofc V. 3l6*, ? ti>&s5, te M& m i m % t -K&C-i z tm 'C0'i oCf15el t0 f01iJ3t **Ow-* *Vmtfr0-ei 4rOtgr-Jmj; Tf1e 4t"edi a s* *ct0 w< dto --t* =*Z<4 tftQ &g c&-1 * O JV6t-3, O> '&l tc#*\ t 4A1%at?*9?e 0 i A t-f t At3i ,.tt tS3e> cg3i 303. 1l**4j t5** f<**tos**w*>C>>ii tt.1e? t &.S o ft r11S fe AtTTM*4 f t ao$ v2i *0; M&sti uS O9 t **5 t9fle f&!t*: 5W4>P r. 4Mv fr : diiasrt *p9? ; tbe` i Ki . %* p vic)/. 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S rJ 4*1 < 5s ir A >: p i? r* - r i .^8 S3 fif 5> [*1 * t Sfe * sa? K t ' fl & fe i) 4 i V' a m > * ti lifcaS {-s H w S : S. t e Sm a 4 3\ s a g a 3 t r& f*" r* > I* P* f* Mi t r* * ? 4* i-fe j - :*> r *s> "r S % tf 5 5 * *# '* ` te - hf 1 `:r V ' -i` WCD 001388 X n **A i i t ? :; P im p n em * m n u m ii# o? fri* u * . X * A s <3 ccH* :v. -*3 1 , 1 H A' s Jf1t+!-* Koaj <7\t`M7*f3lt! gf fi P1i' ft r: $ w P <# ih Mc! V* .*h ft H 3 SS1i*'' >f0i, {rfms**i o {G*g a>apS*-*> 3hrrs5*->' ?* Hy& vat0t'*. H H . AO; -ihi sg fi w jjj*. {$ 0!> er e*'t rr g *-? .**} * & 9f1V0?tV:* 0te 5 OO! U * bj fv0>t 1r fCQtt. e-ra>hs :w2-i. 5=fi & <{<**** ft; <fV G-ft fft m fy:>t* gg* *^ er r# - . \ < s i1 >> f5 0*, *1 A 3 M-fti S' tgt ft* p* ft iOAl >5 g, >f&e1tr ft Mfr1::t?' c3t. f i. 5?- ft ** ft T i **s4i 3 er r fm%*e<tS*rr, }#: i 3i:t-.' a pt' J>rif:, $* ft f?fOftrt. ** 8r& *s* *5* <* 9(ifSrASti!". s*f#pt? T "5 3"* V>C^?.*WT 5 a 1 03 >0A c* rpt. *f?- r- f t iM? u, < QIV f t <jb *1 -iAj'WkC >*S- *: ya 7T f8j*4e'?iM-*ttr1,>rr I spt* g s f::.t fifse--t5t.ft '-. 9;_ ); * >fiflh* Z tfMt a<3"' nMi 4H ?r 3&K>* I S. ;mcyrr Si TSmS' 3fN* (*. P- 3 rs*rrfC* % *7 'I3 Ma0>Vi Ito 9&f0-fi!. 5 VV{WOu-?-* a>* a a% e efW-V-t. 3 Q m3ev--* e*-fc ts mP1K61? f1t5 0ea-grftte<* MM*B3 3sy>*^ IK 2 p - /* % g p i M KT f ( 1 a r rtf f t s- *, S M. IsS>. at fi?. C I f-ter E! e jg&M%x* ft a *r mSri BRa ti- H' #* 12 - * -i - jg r 3A 8: gh a i ft' 1mPaS a3Me*lr>wV--> ;S?v'ri> VCi jp <aFir OK <--j af*VfVitt<. Pj<fBf'tJ*t I is &&i M S PaSSt/mj>--XSt' * a fr m ft MfatVGnt*! <lr Mptfeiii fOSrt? V SS"ih #r frW-t-' 1B& k ft Ift i t: w* i* W f3-01gr.A*,. rr gtt6ft W (f--i1 <>s> r i f 3M13*f*t ft f1it? i%<-g* 52r f i. ft %f tfrt' 50*% % i7f"fPrr1rt*=>* M Vi .*O3fit U<aff-t Jf2i t(U*fr. iet1 *V0fftp-*ttisrSm(Ote7t*. rIf?ff Kr f Pie iTM 'S m 0 ^ 5 ? r P. ** f? V t (9fe r i* f-- r i- . 9 1 '<3 : Ab 3 -A- 8 M. e 'PM*i&m-t: S K S tH-t #a f S S*t ei2fv' `6f*t # ft I >Otte*r> s mf%;--f^ *K>. wfM3*iCir*i. V? ft Cs fKa&PO? msCr Pi.?. Ci fpi. & >> . isO CT K2 i A CB I*I 8 5'Hi.-t* 9a9S*> ft fn>s*r PE MfM* *S**i4o frr*? $H?t. 200T Sf p5Sf^ptt>- ft S. i gil >c$*?7 <rv&5> 8* M -% 1 fsfitt 8SeV/;h ijr ft pp 1emf(tt-s*r f 3a 5finrk* S0I t0i*f-fc>i' rW?i pp psrr ft it * B4f#i. *Mnt*-5**** O ir?-*>r si 0$ i* Q 3 t Cf ft :. * V te i t 1 hfc 1S i &m*3rt-e & CP?1frt tH-* F<y> * :tr S &0Gr> *K<s~: fyt toft) s /a h : ft >1 JV, V, J H 3 IP . 1 yw 5>"> 0 * 0* e ft & 3 1L$ ^M g <i fi? N 2r & i - td r V i ft fGf . O 3 it * f :? I t O t % 1:- / p i* J* H p t* mM V r o 'J-- JV t-* f i Rj fi' i:r G : 3& fi t t t m e. 3 0 s 9- Ht - WCD 001389 060100 aOAA 136 A . -V A A A 4* A A A A sG t i W - g 38 3 S3 w 'V -*J < w s 5 A 3 ss m C= <- C f <*5 e * P " I IS f. y i &; S$ 9 f i :P % - Ta' * i; *%* Jan f; s i? 5* A fi s- s fi V-*' 2 ' Fg & i5 f : Ns ' 1 S/ S r s? 3 P4 sr * 6-r> P > S * ti ft m Mi 1?? f>*> J o f t !jr* c 'TL Hfc f- il ** 1 * C- ;> Vj * * re ;- :' -: <** 9> 3 1 re- Wv' * * ' 9 & ri " 1" 3 <> m Ii 2? **-: V Vi c? * et K * SPI {-* or ** o t %P 3f fo S> i 11 F ' 'f f t 0% re f t 5 g 4r G" J M* >- f i : ^ #* * s fr f t ft tp I# 5 -* 98 ts -* f a- La r * *4 : 3 S ft* u I g- *3 R ft &r 3 f t Stil- V t* - p i ft 1 9 S *% r*J M * o V ', 3 fi <4, e* r ' to** K O 3 w* " i t i U) * S w j O >* f t . ti 5 $ f i ' S' 3 * *3 t* 4 8 . :V Ift r V. W Ps cs J5 'C i ? 4 'o &> N *4 K1 r XJi V ft V I ' w 0 f t ttoea* i re e (A tsP ft g& o *1 re ft *1 a ft r- ih : - il* f i i 3 < A jai C* s* i :' M i .<**. 0 * 3 *0 5' g ! c 6 5' ( t tfT e <t+ C- Ci* o fk> m ie r e ; R & 5 M ? ife f t K S r <f -i' Ml 1c> j ft F ;m f*> 3 i f2 s* h t> i r: % " tl ^- s ?-> <* i ft ft V Grer v f !V a 3 5 t Vi it* i l a# 5*i C>cf F r *< &* o w* ft. C-> w 3 f t *s 9 iB a o m 6frif. * re i 3 r ft g r M> m fi *5 5 C3 T -s <F 55* Fi' o <5 '3 *-3 ft r - f t e#i 5> S ;s '# i* r '* ET Ij la S <2? * wts c . <5 e te t. Ti f t * * >* f* C-- f t * < (J ^a cs fl ? r r- S ' a " / tri=i 3 t i l * O 3 s? ,V 1 f t & <: y 41* Di * *> f t fe 1 y i* * * f * ffi .t-- I a> ^ 3 H re y - * 'CS f t j* * r > :a *5* C- t# .t f-> ; i o as 8 6.s E3 f.' 8f i fe re i ;> K <* # H ft a <** S V 9 SE 1 f O w & 5* 5R ft ft 1 ft >n ft ir *i * S' U o 1 > ^ , * m F re e t ti fi S g M i a s r n O n c- ^ c>- F M ijt WCD 001391 4513 4819 *816 TABLE VI--I OCCUPATIONAL ENVIRONMENTAL LIMITS FOB TALC IN FOREIGN COUNTRIES 4819 *23 Catrs&ry 483 4827 A u stra lia Ctaehssiovsfe i * 4829 F in la n d 4831 4832 Hungary 4834 4835 I ta ly 4837 USSR 4839 *840 *841 4842 A fM rts p a r Ttagosiaeia is M i s t l M D t i r 4844 Adapt, ad fro rafa rp tH M 11601 Standard 2.5 nq/cu m 6 mq/cu 700 ppcc* 200 ppcc* (5.7 nppcf) 750 ppcc* (21.3 nppcf) 4 aq/eu n 700 ppcc (19.8 nppcf) 4852 IliT ifl fill t in I t l l ^ r T 1" 1 l!" l | riM B t l Stan d ard 4854 4857 <( P e rs a isa lb is E sposura L isiii S e a t studies; o f h a a lt h f f a c t s o f t e l e tn w orkers found i n th e a v a l la b ia 4 8 8 l l U m t i W do n e t ccfequai&ly c h a r G e is r iz e t a l e by source w lm tra i com position ' >359 o r p a r t i c l e s iz e * E ra le c tio : o f aseny h iu w and anltncl s t .id le s i s co w p iIcctod 4860 because t e l c Is o fte n found Mixed t ilt h fre e s i l i c a find asbasto s * in e r e ls g such 4861 *s c h r y s o t l le end the M ic r o s c o p ic f ib r o u s f o r m o f t r e m o lit a , e n t h o p h y llit e , 137 I ml s t i n a i it * f i n v i r o m n U l d u t ha* u s u a lly &a*n r a p o r ta d s th a n u a b a r 4893 p r t n n t th a i n i t i a i . 8~ray f i l a ctvenqag o f p n a u so e o n lo sla ro tevaiepln 0? 6 1 sa* 0a i n *-t s * .50 0 t? 1B I<:-j 8J sfrSt # <*$5 *'/ de s 9? Xi VsOi' ss&J JJ J*I0r5>-31 vsa nf <=$ rflO ft fiSot> * 3f3t B cia?s 9 *s Ip Mft if4ot*3 < 1C<S5?J 4'y--f*^t> 0 (3 tIijS#t*it 1*r3a' V0IJ Vs ^ . tfOS?i OO40} s 1G$n5*i a CLtBi? 1g*<$o'? m 1! * .0i<*5-, 0-l .f*3Or>a5 G * w1 s L&3 * g,VK*i Bg t<*--.K-J91 ff#rta Sr gB a*J4: ar>*i>*?] Sidl V* St *l * TS" -t O'J w0 *J m /J *10 k 1<1*; tf;t 4H `t. u O .g 0 j., g vO awfabt Jf05ai Jff3tt $ O 3 XVft-, .0** 1Vi03>i, <5aJi 1< ft ffffatat &W*o g }&i*ifff#s*tt. % f*Ot> Sr- fSfgtt1 5ft.. v>a s %*c:-p4*3j I5r*'* >c S1 *0 yijt b tp K1(i Wr0fJ-ftt>lI < <1tf*bi\. t9v <--3j J41B` (*00&& <lfaPt ft 9 fi V* ;; s '*9 f f`gl-ii: JW *s1 i0ft e? *Crr':111. k--):; <SSI: is^'1I; Vw-'Jji1 i"0SJJi1 V'b"rUt3i! i1i i1 MVJ0gtX-; ? MW- mHHV.i:1: acc&!II:1 J^h V^49 \.1; a0S-J aSC0*i .sC^&B*3hC0ff>tt3*P c 4fSt 1'kJi *v *0*3 *1ir- e'# h^* cz*i ^9 .0fj m fWi0l>l 91 ?< S> I`v{n! cnrJJj 9;^ i Ti3 a uSTi f .V :i. C! i <1 S ? KV0) Uf'Mt .0? av5Stl*,* AOaSri ft i* f*t1 <\f3t1 i * f>t% pi m:f-.Jl0Tfitjll 1 S*SCL) O i *\i i*> ft s f:t' ift (M r ft :f-t] 1wft!11 S0ft <eaft. (V tfOt WCD 001392 $* s ssfjssi O jo w t i f i t l 6 Q u s a a ra y fi 0 5 a d d a b w f % M i m a J 9 { a j a s # 15 ' B sd jn d * y j* | 3 sls j | j o o s s i s j o u o s ^ r . . i ? , s 3 p p u * s y a jx S a ^ s w : ; y f p n g s o u f q n g M-t JB# p A | M p s S * t 4>fc f i & B 9 K> &n ' <? O ?* m <j ? .s. * 'S m*a S % HB I # 'i. fc S s m 4 Sii S t S S 8v` u m sP fi *o r~ 8 31 t '-Hs < *a tffr A3 I BW JiM Ik 1 i Ii S a f 1w ft te i 0 te fftt "! Wr 1 e % * c M < te n C Q 9 $ : Ht * * ff 9s a- P * 4' S ** i A 8 t S a f s 0? *j **; T* te %C S 133 tj. O a S .j s i* eri* 0 f;t ? T/ * 1 <% %sg fHcfg ft 8 m a li R c*o~* ' f?* t*> S S P * tW* fS b c B e% Cs* "fc O * * t n ** y ft* 1t* ft A c* w d P :? Tv V? 5 (X t, 0$ . f g %A &a c? ** fi* (i ft fg j f' 0 S' te tv. Id kV 15 ft i* fl? 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S S 1 f 3 I *K .i* ^ i. s f j S L fi r* ri . ii * fc * s B B J *< 11 .* w S I* r n Rs * %$ - 5? s< f4i `V, O Si i 3* f* -r -!(T) aM & mSI J C * 6 Cf --0 *Ci0 4 ? fc 5 o *, * ri W J S!>I 8S *0 e, i % & *t" J4 * > n 'Ps & A Q <9 i* I % -< * m* i If C t I > a t i ai t*J4 g i !9{-0 U M ce % f.i* '3 t 0 t t '?t* Si ril; W(!) wg fei f lj> C't^Ti es} a <?j j 2fr * o O ] o. t j O ^3 !> 0t ? c e 64 o=4 5 *9 rfGl 9 CJ i VJ 115 <3 fl 'Si e e Nt & # o t e* t a 5(6 t <r> g O a i e $1 1 u t i -S 1 *3 i Pj? . t M -: * 9 V a r* SW O a S S a g 9 art V & c l;< . M f s U &a t id C # $ C*3 r pA at V a; > o O p} PO ? U 9; , Cr SI # 1 *r-t fi .i.: 44 *o , <c4 k r * < ari 5| J f a i p5 V V C V. r *; f s rs 1 % r*< > V Iw*S < ri % 1 9 1 m8 88 O a tH <*4 es o5 **> *} f (S 5 f fl & i ** t - % ? m . > s rwj *> Sr1s 0 i&. 9 M I *9 tg |**3 l fl 5^5 j vS r>--5'3 3s t t f- O c.> BS* tl s> Co4-i *3 t O.fl e *0 .g 3e 5* k * 10s 9i nUf t -u 0 f0i t VS*?, oaM*i" HCI t k a N9i SCNJ* M t1> C 0o vl J t 4 19 W m "1 f ! & g w o <S 9 * ; .0 y U S i v If S r] A fl ms i ,c k i i ; i 3t 6 5^1 w <5H- C t Or t fl 8 jC s < o 49 S U C u< <a 8 * C9 i i* O 0n T. t fil s t' V> V .0 n 1s (B* fi n o0 t e -i e N. fl Mt j b M * 3l 7) J % & >i Sa. c % e **' .t SI >, C'i 31 i g 3 o t s a I i _ f (*$ W V J| 4 U m :.* XI i* i *: e , ,1 f i ? 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S3 , &k Vs .V g >o X *3 fi. s A %u y '3 d i 1 * V, 'rt y O 5 3$ W t3* s :lit i t S S S. <Vc G k g + -4 E o XI SB m 1 ?a 5'V>>, *i*j V !- 5 o 3w T* I J t; SS 0 U fe *4 99 ,, 4* J N i-4f1c * g a. *0 *3 1 *> *4 g t? S.t) I1 o a I I8 =4 f*. 4 =fc *3g u 4 St. f i i s * >* >: w > ** m 96 9 Ci 4S t5 ` m .ir TJ 9 * 3 y 4S i/' 21 %E 1 .%? fif SS (f> : s S* fe I ** i fe T :# *i-e. i C4 V4 si & 5 I Vw* i K a M n tS I 3 f ? U 1VJ * ! S v1i r> vi 1 **< 4 i ^ K * 9 M V. I E 3 891 H S *6 'H t e* Vo ! f lilis 4 * &i H*-; Si 1ifj I 2 1 g iw I iI * * $ # i. - . * b & 8 % ? S ' % 44 i I i I M* san m5 ao rS* oS og i '3r irnj8 f 1 I tn sTi U1 !ft 5 m iTr * r ia aS WCD 001396 euwSv: m 8 J d p**M> * s o i?*S5 * * 6 0 * jm d e jid ' sa a .ifeo jc u a j ^ s d ^ W OS sj$K> p u 5a<|b3 * r 4 3 * A i IB S *.! * gsj Kl e*a i ^ st. II *# 5 vga uSSn 8\p Us V Q I ' sr I& IT c> 3 TT !' ;o m x> 3 I3* * <8<8j Ih 3K i^> &$ I I 3 ? S* I! I B. 6S' S *34-* P a* rt* ;- fflitt K ; 1 ? safrB?t * Ct* 5* M 1 % 8m * >1 Zi * 1 ar*> (A & 1 Q E 4* et 1*> IS ? 7e, t* r> fets O f,v fe tT. % & W 1c05l? O, sr &s ft O fi- W c*- f 3n ft R3 K> ta e m yr> ft %`i c ( % 1 3aO. G{ F?' *3 IH & R V g<* UoS 5G e pr? -J O ft <fts <?Sij ft ZC. !**' <L# ft t> rs* li B ft O% fi' Gi ** tKs gft I C-i* i0* i r# r*s r-- te t C I 16 45. S* ? 1 s 5*Tl * I C. or*-* P& s ^ ni* -5 Cl o`iB 2ft if IfSS* ft G, O, V '<# P g o bi I9h- e? Ut SS I1 s s4i f m w K* **> i* at m r II * 51 CftS* $ft V}*> if a '4 ftet I tte- S I t* I v; w 3s % P5 5* $ftt: S?-i' F*' S Ti5 g**** tcf O N ft 5c^> fStT w n65 82T ' c-.- n SS ES N3* O 3 1 WCD 001397 *? f fe >* fe fe fe fe * fj 4 -i w t 3 - u I1 m I*1 3 ,* *t* *0 -* fe 1f-*4 fe 4*t t 3 c X V t* <: *s * *c s O & rt M in y t / B ,4. A '-V`*3 ! > `g fe p 1y z f0jee r* W *S ftej 5 g 3 p$ B j 1 I 4? 3 jI <>? 0 fe i s fe * 5 O I A *5 fe V fe - 3 I2 2 o :ffee 'V fc. G fe; X . u O 3 X9 S S*-j S *? -J s 4 ,m n *-* i fe ler n "O m ft 1 # 9 +'? : fe B 9 $ h c yt ti *> fe. *M if V, Sm OT HI 1 fe> c ~r i i* I 5 8fe ti *> m vg f*e5 fe 2 s 5 0 Oa fe . fe <-3 % feft & jg w > J 49 ?t r. 1 Si -3M s> M * ijf 1i > t--I)P f2e 2 o r* m r V V ri; A 1 i p 1 i B 4 fe, i tE g <k 1 ** p e 4 4 4 * A i I? .8 f mtf; .0 fe O **i &3 fe fe s - a >yI S I ? % fe ? I * I S. i*4 v-5 C *fe k *8I ; m m m 9 o U ti. <~ fe to 4 s, m !- # V . 4* <! ^5 19 EW 1 li s 3 ife f8e1 4 c fe Ik 3 $a 5> - ^ * S * t t: $ i 3 I fe I Vs R ii 0 m II 1 I 4 B 1 I 1: & & I34 * t 4 9 . .v i f*e* S \" ? rr*?: <^ fe !5 <4? fe 1:s;>v. t***4 s O 5 i S1 S2 on so gg g# n 83*ft* sin rk. t:i5i m3 m WCD 001398 Z60 a is SG33W KDV3SS B O s e -msoste s cMHMMj j t o s o i i t & n c ta w n m M t f t u ? 9 i u 15* * y# 5* U 3 B 5 li i* l *s Ul l V) 1*5 ys 93 M *** ! S 8 I Ic*< 5 W S M s S 8 S 8 2 % S Sb Ui fi Ti 3J 1 1 "S % i e?* 5* ' f:-to. Ci j>* 3 2 cs & & ci*** &h*> VJ mg 8 f-; tr*- %sj r*> ri a m L : 3 t& Cfi &* V m 3 CHs 5 te fff rt* Vfe fi f 1a ? f-i 4 ? w *^J! *> c ES Ci- 1 ty i* & ! JS fh i .5 tw s I tci1^ h?** % V IS, 3 & 'j `51 lT2 hn # y- i-i W e*t ft. fc?s r i" a* m M l:v s & it ill #-h M1+* &`5 g n *?* aG S e i-0 <*. J-0 % ft ' Ci. :-r> OJ 3C s- Toe ' ft h-i * f<Wi H a. a a* ti e>* H c j| te* a J-?/ (a fe5* m 1 U 1 T* cri* If* 5 a* ri ,> S- 1 # vg -> 1 m f $ ai * h 1 M -lfr>t < g friT K sk 3 ft ft t* t ? IP.' a % ft i f # *f? A s > fi; *5s ha 1* CO a ft S ft $ '5 'S g iCi.) rt* -. 3 ft r;# a. f t. G T?; te h'JSO >r fi* * ** s ft e* 3 O te 1 ari ; - te* fSt ! Ki hrei** ? 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R K \3 ft 4 ote *> 3K* t* fCt G3 *> te GC tHe 0 lm> ts t*e-; t>e5 .r ft ft* ''P-' 3 3 G 3 Ut nV r? *3 l~ SE> fi' aG 3 >* ft 3' fi '1 1 g g 3 M' Q /=> Sc h f3tP tefc e 3 5 te t-j SB 3 M V) h"*n r: trA S te g tl te tir SS Sm .7 t9et* G S 0 frt;rt r <> c, . **ai E* <P*' ?* 3 &Qrt P 1fi* tv *<! u 5 S ?; te . f-it,; G * S A te* y S- 3 rrf w rJ>F *5 te Ci *i \3 13 sr Q. so3 H $ B HH te ro* u 9 H S e tt: H S te 8te. :? te OJnJ S te <GK3 A ft t*e> ta ft Q B &y iat O e* A *7 C Hfc iQa SC H 0 h:* 4i 3 <o G *6 m Ui t o e 1: 4 1* S ttee (I IV 00 V r;* ft tef`Ti ft te3rr $P>5 X y Gtl ( a, & 0 f t. er 3* f t, t^. & K G e- r', SE' i? l > ft IR H R e. ? G /? Q 9 S f5 g t- & & .0 , 0 r** 8 6) ? C'-=B ' U) rfi* fi WCD 001399 56C w*ri*ty a i spmuaa 8?iT5sfca Tita uecsiiCj tBretatssnis and rtprschietlv* t3: Ii O it # M O & f l ' .I, r cri * --) > , O <> f l fl A H >- (i) 1? V ^: f l Aj-; *" B ) i V, p* CT A Ii **3 M M s U 't c8 -i V i 3 O w< *> l rfl f l Su ,v <t' : b 2 -1 Vi-?2 _ *>5 & fl M Kw .] * s:. eH cy O8 sii .? 9 <*> '--: M= .50? fO V* r tl tl trK Sg * . 13 + ** * >1 t* H * ,*> C i WJ *J *5?5 ?n j e ip fl Aj O ^0 A y H m O:* y * 8Q s? $ S /> "O f l V- v G f l >s*> K m *> M h fl s -t rJ ^ 1f; \jir H* 4> 2? 3 t? 4 1.'i *5 IC J* ^ M H # :S3 H & J t> >*4 80 g* V 1 fl j <ei 1) ! iI 1 *M* my <* Sg SI SI 1 fl O y S fl f b3 H Q. KJ 2 9 g % * -i b s tfi S \> & #> f l n 1f i fl cS; ) *d L*' VJ s* *i> Cf l g 9 t` 43 } 1 fl r5 V, A 5i ft V. A VsJ fi, jhc <v ft Ai Vi ,;J Je 9^ P S? vrii ;r. 4* CT a i V K *a Vi .0 Ci w 32 JA W ' s i 1 2 J > >? <w H fc >' fgl h U) <v O %! 3* cri *S3-' o> t*0 U C fl 3 si ; ,,0 iS: 1 ,.V' ; Sr3j a .i B aS*7 f l fl 2 Sm <S>i JH 1 fl SS- f l *5 -Vgf u "j S. H 9f i e E 1 *5 i c-* Vft: u-1 3 J fl 6' 1rs*> fl 69 i i<J CW- A gkJ .& fl <3ct r * b r3a1t i vi M 2 M s r i# g & ::* fi' 1 I& *s fl T ,; jt i 4 i 5?H; y A s * A O 1 m S 5 i -mj v( 5 &> *K P * * C a 9M i JE 1 5 JB V * t-e t-- 6 *> I i ? 5 i? -; cr y tfl B* > a? s g i? fi*C *4 I I' --J 6 . 8 jl <fci I 5 SHi 0 S 33 H 1 5>:*. s-; H g J V* c lrt=u5 ^c m `-sVa 3S ri fl* V 11 <E** 4- a e ViD, h & i K 1 -? 1 3* i>. O S Cs a 1 fl 2 * m3 V. - .-s M i S V : M J fi ? 8 5* M ** mH * I j JV K #1 :i sy 1 i * Sf j i S 'S& S* it* s S m Bfi tft * n WCD 001400 147 rj y y O . & f ! s ? I * I' *& I^ * I a g* co<? c> & a. i *o* r, - i\ t! 2 tt*' ItSt 3 a i I I WCD 001401 3 S 0 sss y q S? ?5fj> r`.?,s 4Mf3JV> IH;i soy, J ( |g ] # u e p q * { S JK i ^ s s s 's p n q s a | M d e q n n jks p * ? n * * A U i -i'jOSajKW M **q y m M s | 'i # # # * i l ( SOE ad 2 r * * * X*m VorSt, I n ts r a c le n c s P u b lish e rs* !P69 spai. , pp CC-*S4 I . M uliyan HT* T * ie , n U r H I t h M i1 Ence.op#dls o f C h m l a l T # w oot|| 148 tn <# n o a 'i"J C*-t *V f ! ... *'*T *S (o m o. y o o. > c o * -i & *' 6 * &K * Im3 li.BJch* c se- . J -* u c -' - i UJ fr & U1-1-'2. aC<C^IMO3 : * * u> <--3 a i 'yi . & U + * > O 3 3 > - . eo - sa *K O g C S 8 s* S Cl itf oe6* *oo f a<t5;aKs81 Sri * 42* .gi. (aS) M , m S) t- j -mTf' 5 w a) S w < *- le so X t *K fc i. -? 4f>, <* - 3- S.w aj Q (2 fsG) Ii : t! *> *! f i cu a?4*' a ti i 'v i~ : m *M<wC M 311 ri> m & , S S cS * b o. CS & a C S oe>J J *ft V *3 oC VS i-3 ef.'i ,oi r(y. J -.V s - ~W-Ji gCi 1 M P$ a r f-,C \ N ' ; JS, g CM V? r 2 *. ! S' -9 f Su ES m , '4 k 4 $g .0 <; * (i3 '* v U S ' c- e ; ## f . `" 3 "8 8 c J. ra*) 5 $ 5C <S ** i `f il <-3 te g 0 > e j :-} SK 4 * -*s ? a i d f <J <- i t t k> S : k * e ,8 8 fe k 2i Si fl <V- * < j A* . 0 ` *w . n -l J .il . M f*> Si % *>* %3 T ? A3 fi 'H r i <ff S O " * < - t * vi e u <3; c<j a **? o 3N -J *-: S .k f D -3 -2 Ui >1 ( f j .. P S-> J S ` - 5 3, !*,. Anr-4 0.* 1,0 .pfc s^: K U i**1 .I %5 et & . hvJ a* vi j.. tn S S rK i - b g :v -8 % J *s3* *i-J _/ * * Su (S e a > cj V a o-j m * ? wS-l *s3;?,'SJ 3.0H J W g 'K i ^-1 3a * P fi as-. ^ ws <8g sr. fe ^ S ' trt 81> *r>J SK vi i J tn o t) *3 r tt f4* *O fW c-- -- P, t* P . C "' S :J <M P< 4 -- *> mg '* *^ poH a1 : 5'3Iw^ mki WCD 001402 S I? ? SIJS '.P IT* R(rtv> Wte *3 C. s (b C' 5 p ej P- X t C o fi C "2 i* W O& "g ft* T s : * y - ; f f* 5, 5* Ti LA 4 3 W W n U r -*! N [V !-- So <* h*. P e> C ** G o8 *- W |3 J'. * >* _ ?O <?> > " * *0 F| * iti -- 3w < 4r> o r? K * *: a s tj O0 u a -.a O U 43 U) S. tfl ;4i^ OW f t tv* I; s* " G t^ j ft ft O si *a gc r** r* i: f t : * i O 2] C? fc Q ^3 Rr r Hq ft -M G >**> g; -- 3 A ft r n j v; w Cj G S O uf NJ O c*i * n u * J ( ar vJ S & te a c* W US w Vf t f i fv ;rv " 'a * J **! C * VJ J h fc * f 3 SK* > 3 |f 83- -**o r m w O -hJl ;* t* r* O :4 , -.5 H 6 , e * 3 A- Gt '3 ^-5 ttl K,, H & fr - `I $ O M I S ' ' ^ 5?" *<& a 5 fc (9? 31 " SV S *5 O 6 5 tt G' o$a& y * r? o -i n f t S* T i a ro* so w o c-* 2 r? 6 fi) U t J i a *>t~i jj n - I ,, `3 S T * O V- - *3 O *^> K > ' cf 2> S g w 3 0 3 *w P5 G ts. H# f l S <5 v o3 w fre 0 t m3 ry? 5 3 <? ft 1 o '"Son, 5? C i* l f t v? O ft V 0 in 3w 3 fi Z , <H ,, C ^ w *3 *-r w o3 a G r? '* la R G > o *O ? O - c- J s ft O ri* T S vvwo ts < $ V;* 6 0 5 ` J. P - t e ar ' * W1 - i ff(9 6 t SSK *> S * * * 4 3Bs H 5' li! ^ ft** 3 # ^ ';#> 5 rt ?: h y m O* WOn -r.*o, ai 'lJ S J -j o `o w Ci en a c 0 , g ; si e t > j ' c^> fwt af>; e SB hs SK 13,3 ii s> say Ci O U ! *3 r 9o r ' 2 K > & s j-c 5 a 1 W W ' * i* * ^ * i ^ * Life O # --^ s ; , * on k t ? 3 3 <S > f j & frf. " -. i- S li [-- s ?' a FS- ><. f < * OB; G fI?i. -- _ w if * Jo rr-a* , ta 6r3f C t 6 . 8 lf ? <5 r:s v5 s <-- S t i O 5 "i* M n -i qit , 0 0 c ? j : o s 5e . o r*3 6? i* 0 ^ , c* X Z> Q> U l r? s * c: PrV tW->e<?:, ra;r* i?' 6^ 8 r * rc* * r? i - rr o I O 2* ^ 'S B r? ,<& m ? *Cf-tk f m f G , -> ?a O Po. K. ft i l- r- s<9r iIVS* ao o f, A tl d g ss =00** *IW (? s l i G. " f l O LS * 3Gl ^fr0<*. 3 - e o M O > ffl - J * T . t " V Ci Wi*: *tei 'O S 3 fn- '2ij, **O la rft,* ti a a af i - i -5 C " 5 3*0 fe T ft* /` W ft f*t a f3 o* fl* o S 0 " W ,J X I i 33cf c< *-3 C ft GV Oit ftl 1 ft "O fftt> nC c 0 & *" 2, w *0j a ftee " a -i -i e S0 </ ft t '3y Ut-*fnt * c? r* ft *- ** ,, O n c(*> s a 6- S Si 3 r& 3 fe P ft Si ry X r* Xy 1 OS O l V3 `V * ig || S i* s* e . a r s E s t* i S S * e. (\ o "O ^r*J c* vH-f. *^*i w*' ,, e ierf i3fi'>fri gS ' 3 3"i* * * r*3B S <0r O b "- 5 ^ 3w ft* a s e? ci g f >h320 ; r iy 3 Ww--2 oO --r 4` So* tI) t'r*i ^fjl-nj S e ri- 0. 5t O rv- :* -^ W o S fa r? 3 o H * !>> 3<f. S S l Ci 1 ffCtt e lWo <* .*H*-- ' > 1_ 'SG fot W=ft5 ft* S> C S &t > (ft U ' v e r r? 6? ^ f ;* e^ *W" &% <0*iift W li W . * ii3 K r^ e m r;* r? ve t - I-*T3 ft* 0 5; X 2 p, P t X r? a ewh- i / cfc*t, f0t r5>* ;r--i*>fie c ft Ml <0 s yU ft ft ^ n 4 Kjll V M . SS i 5* r? IV a fft- n rtf. cr se P 'O A ( w &* I ?? & w 1"0 0 5 O TA v ~ t u '! a g -8 c *o > M a i oI 9 w^ sg Ci* & 3 r> a f o a i WCD 001403 IQ WCD 001404 S W l<fte T a l * SoajW toiM i# ci P y re p h y J U lta * P i'a p r in t f r c S t ill a i ia K o , t & l 5 9 0 0 O a*rt; f %fea I n t a r la r e B ra e s es' M in a s * %9T%t ! 2 3 ? 2247 22, fite r ! G* ISwaps tot-* a i 2 cos, s -" A sorsi; r i stili en i c th a js a h a io is a l n V - /-** fl * fl S i s i f i * - .o > 1. 4 -- 5 k 5 **JT, c "SC.. . ./ n n 15 e f t A a n - 90*5 S - S P 'W S 0 ^ 5 5 j b o i o J P M f p u i s t t u v 9 i n i i s p . ' . c s * K C 3 s { 3 s u | f i 1 M * 2 8 i H p s - 0f ^ ` i - S i i S t f ' 0 3 J S O J I a A K p u j f U* UR1& i y MO V S>> fa to2>*^f*r*S* M OUi ^<* * Sw d*e y f' l$ ,^j S5 ne fv 13 P* va 3N & 5C 1 a 5: c-* 3 *; tc>* 13 S e S -O 3 .OS BO t:> lA ,*" K *af5i a&S K v; esp L> *<?-*'3c>* Q ;-rf. S 1 a . 3* O U* u t &Itfg* i*> "j M fa13 ~ tf? II a 4 >: 2* r> fAi fT1 Gt--t0= 5fi. H0* lwu ffi?s U 8 T 9> Ote . g U* 5 il O G (fi "A i *1 *5. S & && K*i H l> K } K < r> 9 as u 3tIt iti ! >*3-* s Ti H (X r. grh> n C-o 3 t* G V* a *s< a 3 ? w * fe* v *e *v r i t i - Oifl fi. i 4 IS> nfe ea*s o. s*r mu $ 3i:**ite, x t* I e- S** <* 3 ,,3 fl *r 3i*" !2. i rP b 3 s*r fifi Z>; hi "t'Ssi, > ' fe CA* fQ, U5* OM. -9 O< *i * sr * II 9 ID 8a I i > i 1 ( I I ? i f 1 j WCD 001405 5414 31 Mi U n s K* f4t*unnocon3SSs du to t a l e Sn th s c e sa titi c in d u stry 5 4 f6 easf *S 4*391-94, 8042, 54S3 32, f t r i s t s d t 5 M attssan S 3 , SeStaia: A* iT a le e s i s >y esposar t o q ra n u lA r 5434 fe sjs ire & ru b b e r in d u s tr y I Mord Him T d a k r 49*44-71, 598 ($! 5433 33o S e * fis tti 6 , Os id o PC9 S e s a t t Le Pn&uiaoconJossS i n iw rtM -8 p r o c e s s in e 543,2 ftaieuM, Mod L*V 34*6G082, I93 (IfcffiS 5438 34 Rsibino 8% S sen ssfctl 00 t o lc t t o G- Montano Cs M o r t a li t y s tu d y o t e l e 5430 SfrwSfS ORd' ill*. J tJccup Md 18S3 5 -9 3 , t ? 7 5440 35 StMNSSOtt G, B e s s t t i L , Ghami F C ln ic a and .sdioofllce i s v o lu t i on 5447 o f jKSWiaoeooSoBiS in fcho t s i c e x t r a c t in g in d u stry 5 Sed Lev 54*744-40 J043 5440 U t i 5453 5c D r soasan XC-* E f fa o t s o c a r t a io s i 11 cet d u s ts on the liait; s . J Ind Kyg 3435 85*40-78, 933 5442 37o Bresssss iC0 D a lla V a l le JK : The e f f e c t s o f aposiwe t o dust in two 3443 OeorSe t e l e s s O is end rainas. P u b lie H e a lth B ip 50 I3S-43, 1935 152 9479 $9 S f i d a i K* S a i tit AR 5re(ii'W^ L R ep o rt ors s tu d y o f tsF.c K iiw r s end 3471 i U a r s In Sto L m r s n c e County HV. End B u ll MY S ie t e 0p Le&or 72*39473 37,49$; 1943 3473 3* S i t i n f t i d * R e s e li 3 iatsorshaa R i T a le pnaiato o n to si a . ARA A rch 3480 Srsd ffeeitfc 121*66-72, 035 3483 <*So K ia ln f e d R* R e s a li J , S h a p ir o 3 *S g a n cie & l as E if e t o i t a l c d u st 5464 in n a t a ila n er. Sassi f t n t t l w . A rch E n v iro n H e a lth 505431-37 0065 9492 41 S C litn e id * G i t i CS R a jc ra n a w ritl JF SsasSfcs J* T e le pnauaiGccnioala-- 5493 A ' r e p o r t d i'' s l a s a ila a its w ith p a i t a o r t t n t lfw U w n . Arch E n v iro n H u e lih 7 c 1079484 S i, 196* S35S 42 K e i n f e l d S? fissa i t e 3 Caoyiasr. 0 S h a p iro 3* Pulmonary v a n t i la t o r y Sisifi f u n c t io n ir, t e e a s l s o f lu to O la C h s s t 46sS9298, J964 3509 43 K ls S ts fe id S Rarssit J* S h e p iro 3 Sw en ctckl S e r f a t y J i Lur*s 55S0 fon eifion dunosa Su t e l e pneuM oconloaia. J t i c a p Rad 752-17* 1965 3-35S 4 4 . R l i t t ' a , T s l r s t a i n A S , Seder RE* Badar fi&, S s lif e o f f Z J t T a le 5559 pnesiSosoifiSoaS.--- S ig n if ic a n c e o f s u b lg h i m ic ro s c o p ic mini-re?, p a r t ic le s * 552S Sfeci 50*395-402, 507! Aia J e. s 3 s i O tu S' Vt*yAf sa i*1;# I 8*3--3 %"* <t K M s a %. Hl <*i* * * "I R K! S I , TV J , H a sh ia o to K , Fox F* T a lc qraYiuloiCQS o f the sfcin. J Ara Mad .1 I fe 'rS*; u( it a <5 H3 <*? *3 I 4CJ9c%*S 3<|? f*3* So *?g*.. 10 ib 3&* B > ?:*3 I >*> & o) 1S ! 3 i C i! ^ iw tO *ttwL3JitS1 S<o* g & g O lin Q . >> if & O 0* *s *>*i t YJ * 58<8*8: 1 99 ^ * jf ' * I&***,'iij '" fO Jt BW D, & .^ 11 "3 itj %SB* IKV--* *.&9 G fttio* M# tfl gl SSI 88 ?Pi*i hi* t& sfi WCD 001408 '61 89-99t6 tP/ 4-.SV "03TJ tsojs; p m ! **T 1* s?s*&3ii.8*s t i * * 4 s s *s r 'g a;.;e3?, a-js! upffS peu * j| a p o ^ )| g 7961 *rH 5M ?*Sl ae* SS >>t*` SS && t Up*j fu* 'Cr . 4 K i <* 2 r? f *f*t> a i 3 IA O 3 $a, V i 3?; C l* ?* t *K *i S T f %S nr r-J O ff *= ft f C ,lfj o *NO<*JVG'4* ;w vtf > 09 $ "* ~ 3rt' uo o 3 w gn SS 4* f '.V e*> \S itSo ss ftG <- **> X o u*> | S* ' J t u * U^> >-- 2&? O r? <S! V *o Pr~S * I VI U " il! 3 <J1* a SSL a S t-, v *S i \ > l?e o I-* -1 ^OJC-p --' S % s ^<V96 G *B O & r>i & f t Vi* G te y. P o*V i'j r NS <9* * en fir G ta> * i ft *3 > -Vft M ft. fi S te r* N ft 3* d 3 O' 0 "* ** p^ s 8 ta 0 " S 2 O g 5 O 1 te a 3 2#*. ^>V> Sn e f , fc fc, : .r 3 & S#I> fi fi Pi* C fri S a C$ Q. a y ce ^ U_K se I** 3 - c% tJ U i ai T * O te ta I*> t- 0 ta XI f ft S r - re G) f f C < & lr* "O r - f S *5 S*f 1^ fG 0.3 J.e* S - (A a va ft -s --8 Q l STO O0 oo -- jf? ;o MC -- te 'O > s 1 I ; 1 \ S 5 I i < \ i ! WCD 001409 89S t6* CeepeiiiojM ii Sej's i y end H e a lth S e r la * Ho<> 22 G m * In te n t t S4Z 5 8 * w t i T , K u m t * T h * q * e r * p h l tut t c o o p e ri s o n o f a a r t U t y fr a 9443 cancer f this tcwaeto and til e a r <s the ( t s M d i in Aspen. 8r J Can car j]i4 3 5848 w * a i 3 N. '*1 C-i 1 f s7*<> sjo* a ,o (ft C i eofc: e CJ -M .*tr0* "i S* a3w1 fCee2*> yo^ VJW- * #C*&> & * e(; m.>> n3. i *e U* tsl wen laSu?t: ^C *%^3 f5s '.-< 8 Se* s f -W V*I 'sO" lRii f %o .*i y'.} J<C* "o n e 44 vci~?G: j *3 S 'a *o C> o fc*<1* 4 I a41J I i l f 35 rwa He Cs wH ?* n1ja ! **! ? 1 ) 3 4* S t f i <* ~"i .!g V*,, 0 f*fif* a_ f P(-s1) Si Mi l l^ 5 SB <"--5 Us- 4 'O ?, g .,r |l ..* 3 1 ^pfeSB ssssa & 4- W5 v U U 4 O S etc* V) o ^ . 4 -/s -->' :a-r *7 0*J -iWBl y'*3j ** ; " . 's^ J*00 * /:< j 5-.-* C3 e 8 J5 L 92 - ii, 8 0 W m U 9 :On .^ 1oS S<* .$Ji (Ad c C*1 e!t>t2ofce:i C'J >'!. ^S) *#y o5c y!*i OQ <<O*>-><*f5!* ^f<a* L. 3 3 VJ K rvi O r" r l a " O**.ce-f NfN ?(-t-j *JS91) *''*>ii O** *J >iS!''.**1' *J&(; t*f.> * w: g J ) ?2 O*J-&t9 rY G.' 0 - u r> e > 3 Oo ft i <u*i: n p fctS -; 6 m U si a 'l- i c l e s s i i S c a i l c o f re d iw sra p h s c f pttsusnesonSoseSe o r 565 So I d llf f >*> a cC>' . ` -t- asi i m u> i i*- ~ ^ -ii C* i iS i ; !?* if: S S L* baia.* c f f l ce 5970t. 2> pp WCD 001410 wnoo aoM S94 7 . F in * L P*ftra .JSS Stessi retors. rtoiditif in rubber wor&srs-- ! 870S Fjrwi*>s* a t resjir*fcorsr ayraptetsa and d iio esis In w irin g w orers. Arati 37 ? B w 4 r o t ff#asife 3S**9,, 1976 157 9 ! - O* 0<1 an <2 i'5 t Si W5 V X (il *- *4 W Q sF W & ?.. *> c A *0 m *m iTs f} X H O. f* N r* * 3 SC U3 i l 5 > i t i 3 W C uC a , 4.J SI + 0 ft 13 SUS|<orr*i S> ** &% .1? Se .y r35 .i~- i,c.a,f.ca*<.# AS*Wv&99i1wJfe*Si> S . t*a>rta?n- n 4* -WC ffii tm & 2 b+5 9+ cJ V ** e r aos *o -- O' li 75 --* :5 e ^5 IO w <>* 3o a s l-J 2 u. o Ui 0 *( SE t> C M *S' tj** .'*4.o? ta e ---S*vj*i5*r?<s*> *->.SiS 0 ;!*t> SS i**rm* Si e *X ^ * ij a **? o Si * XcE .3 -- C **0 -- *S * O. I 3 1 lO 3S O 3 c 0<j S* cM t> C' M l -- o <) ;i 0 X *7 ?i U - '2 - 3 3 3B c a i3 , O **t S s <*? Qt e i c S3 g? a * oJM k. s o S a fi. S C*,1 !> **3 *0 ! ^ < 5^* t "*4 S MeW*Sa*af c*TatK.-|1 s )f&i.- fc-> Is St--i --:; > S ^ i; &.->'5s0n<fSe3;3*C; ia hi 1 Siisi >1 T c. i rt wa w C J *> Cl e-* en o- 8S .S>S & r i- -J t*> :c wg H(9? no? V C O 5 ex: 3tWSa> o -> *4w5Acr.*->^)j ^*& 53-Z: eVS^S-t<8fr*li- *0 Qfi SC 59 ' \2 g C* 3 - -- *-1 *> A ha' 0*0 S ls .*: Sj rfl M ih f j C; Jr i*C * TU C .c 0 <, r.i S --1 tn g c U Si *M cs 3 ,Oci 'fXaI 2 s r * 5 $ 3 lC ^Ul te .s LC # ai r*l 8 & .*3 O >r5 <3i 9 o a ?-, rjj 3 ll *55 .S a n w a 'J <*2 c 4mS#I: 5j -%* *?: ^a)&o S>1?A^S*=3J _^SsmSBa<-4to*M*a.^or*JSf^>3i** CM vT 5S IrVc>a**#s'S,*=Q-!i: t** 3 <F&. :r-af iF** if*3 .O 61 k 9 C U --3 Si w 0 *0 o* 0s fl 0 S-.0 A* fl U <*) ; OO ** a U <* r" ,z 93 M} X* SS X Ai C wc ,>i & M-5 r g# C 3 ao ffi NS 0 && - * .;j *B*i2 V33 aVI a: :i tS-- ;# % *.'O^#C4* ^`csrft --S- eM-j< a^ r*Tfi fai4 150 sn4 0 *-> .-0 (3 5 g id VI m y F * 4 <3? fc.P* l!)fr c0C * CSM X CF w h- C* ts S* y S O-- t l ftj s. ?* i -V V A4 9 =J|f Sj? (3 0 fi as .., 3> rQ S O. a p4 W ^ fiC W o:" "'S c iS a< ; o o i CM km H A) (fl * . i? 4s VI o K tO 'pS gS u. O 3J * *&niK4i*5Wri5). 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Esm er Ps j l i n c A CL* Cannon <5C BiatfeDea BL, Tannar * Pulmonary is :s ts|istli tiftn oioeatlcr and c la a re ^ ca o in h aled nniiirorv e t i v c i a e t a l e in 5S86 MMKttsrao Fsac C o sse t T o s ic o i I5e253~2, S077 -2e-<1*aJ*Ow9R- 2*-<c$4S>*of*Q&**<wi> 3(5<5;f c-og1*u. o -- e .--tU*pm?r8get.i*-a-*6o1e%QJCa.)e*.aoUQ:)n?,'}Oa&vIf0t-*Ti).li o0,*asl>^/- sJo ,9 -K--4'J#:M!O+ p* I Ip X c * M,4SJ ri 5 (\ 0 --1 * 5 U t 5H0 oS R? &*h*'>3o3 m *1 g r-^ O .;* >.'*: o 2 O **? 3 .6* i: ei> 9* sa r-. ^ "C41' OS(2*3c*5>*U?I <?3\f'*?s*ef3,SSoSo^wA-y<30<l'r4Ywif*i 3"3Sh>S5-u&v*. 5;-i i* 58% itf t o3n ) 4tfOr&*)r lU<>rp*5,)lw--wO%- i<--Vruo-;<.*l-f|<t*Cpi>1fVn>*Pi* rv Si g* J~*, ? &* "018o -fMel fl w$ 9 II fl ASi !fi*S. *i # P ? s Jj n j i rta n > C-ft fiH coO A3i aU u?) 1030 RomV--6Sc* ?0Df<*1M* cscjfn5 4s=))--,, U oi s M oa o 40wn -IAWU1Ci.eOS-5f3i> g ** AP3?yfcfi,i**A^yMCc00y9<*#i.. 3^'220q --5--%3:5SOta o6- - $:k-* - o &S Mj * S3 'I m! w&23J*9Sr$ r t a 1 H<i9t1?o!1 San**> t - i til ,S1i sg ft, * '*} y Sed)*. *f 'PJ0i >= Suin $ 00 c*i v5 S c--< f*f f t . * 3? ,*=> f `J f t W'* is s . 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A P5 IjO ^ O ' ^5 * T i :mr 9 } * *55Cs >'* c***>$-f * at -$ > t - . a s rr p ; t m t& t"y(<*2* of** "i iO3 !?3 *g ^O 3 fwe S(-o* s if>r n 3-9 e g r* S ** o f A PJ *: W |9 III <-itftl a:?? tB* oC f--&>> xR S a - ft r^ - 9 -4*0 O 1 3 i i l WCD 001424 SAMPLING AMD ANALYTICAL KETKOD FOR TALC (RESPIRABLE OUST) 6 5 3 ? w i l l fa* a va. o &O' 9--1<* fc IK 1 e -J ya K-0 W s* o*r4 vtao> V* i t i 2 ! g"i' <*r*t ts 5 3t B R aw5*S ti*-* - v* * -v, JHC Ve -c. ia 8 2= 8 S 2 ~J O I # 3V* 8 fco *V. ;'5i >ij 3 5f6>> 3C>l <> m<v3-.5 *? 3* .*c UVf-5 4A a*a 34 M4m* fc ka 4I V " <--: Oa k& 4a * |P ma 1 m<m -*j5i 4*fc s ! I -C ** I f 8 X >** k? 2 i r* 5 tsft i*ft I2**. 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S C <d s d 3S md .** 44 & 'd* s V s S ft c & i? o. *4 *f> ''3<9 `T I d S Si O ia ft ft fld 9 <>4 -l C 3a 9 Al ft u Ck 3 (Si *X>#t 'C9 3 a Ai y t i lie 3 VI s 9 kill a A4 S rzr>t ;# ft M3 3! * `d 55 s >5 r3 3 tP, M ASi ,rfJ[ *9 si u3 * 9 o <9 Q S v4 Q t V y --*M fi i N v ! t^a vl II d .14 9 U 9 DI .i . A- te 9 A * rj Vo A4 A O 3 (3 A4 C S iS o a Al 6 0 <\ s 3 3 1 9 s s $ v i :3 O <M n s 5S S * i tO *N ? S 93 iM SI S : 3 S $ 53 WCD 001427 0199 jrcq^oue #3 ' Mffl'JOj JS}.** fqqnqdaos M3 * * uor+ojql* J# StiSf}9lijq iU | t'S Ii' % 3 f i i. g fi 8i &s g` i** * S 2- 3 3 te*f- S * ' s ?3t cr A3 t c*c W t--- .* ' O <* V,,. 8fe &=** 3r*? ?* * 38 I2 fi l *$ $ Z I1 P !n tK*l- * I 1*-: i VASi* s n g O. ha .V. S cOe>ilf Cs-' sr e ir: a. *fc i 3 c - i $i ? &.-4> & ft S 3A WCD 001428 *. SP r*ss pw tarnt a t h * c & r: o n- *j 25 "* ci , r-a>*: o ?! S f.S >8 w3 "A w I iO- M *> R . I ' -J ? s S g f! S f. ** & -3 i1 Ia E J5m i t sse 5 * & a ,-* S J m I *Oia g Oa 0-> I .2? Os U * *1 II * % Ucjj f5-t g ft f> R l *1 .&s & *^ * ' So f* 0n*3? ,t I tt * ba o' 'J nOu * <*> *3 CiT*1?4 S ** So '4 a "J t-' 9 f* 'f 5 w 'j m a fe C* ** m *> >*; s> X 1 3 1a w j > >s*$ G 4* S ' I1 53 8 s # > stsf * 4 HJ j +* an 1 `* 51 e , y ' ' Irt J t-: a b >s^ 11, C 4P si M S* irJ S 5 5ft *J xmr. I * 1 M S g e* .r9 I a 4WJ4E- .AGl> 4aP 3 <9* %v [. gi. A* & :J I r13a i ..Vs.i O % 23i w>4 ISo 5 2S 9i I >S V fi !4 V. *;43 +g$* otm] i a-1 28 *d 3sO<*i I Sa 4 S 9O4 S 'S 4 WB t-` ia a p i S I -S .U S n* a I S. I1 o O ft S I S PI i G .fp W .0 * ; ^- 23V n `Sr h* 5 fil <W*> 4P> % 5 N*C jtf 454 - SI 1S 3 p ! t . 12n ffi. TKJ i i * 1& S 9 *5 & iiml *:O S i S t) i 1 w 3 <|4 c1* t fi I *s ->f rb- % i.1 S* t n S\5 P r * a f g * s 9 I S Sn S 3 s g s s r S8 S I s 9 < -oK i s s; 8 S s s g*. :k , 8 fs *3 P* r * J*. J* S S e * * 'O "O WCD 001429 S ft O 3* rwj tn-J & ?fi*tMr.'MJl f* htom 7 1 * " ? <-H ' IH f 1 1 I I rI3 S 1 5'A8 i* tt r ') -->*to^> ?r<*^f5t fe-** p* ^ n *tIeI *y*9* V** s & ri s V* >*? eC* <- <^s e*; a is in k 3 j l fS f5 r? 5 " ;<m O fto I O rt I s ? an. *3 C* 0 I 1 P f>. \ n <5 a -t 3 5 s M s i -*S* k -*** Si & ~ g `-J i 8 i E8 1 *9 e. ->h S. ; ' m ;kV m mD-8* 1 f-S I -r? S S ft) a fv o 3' ( ft) src* I M ft r 9 =* I8 *> 5 ft Q 5` n r* X a* l ff%tta w . i* /3 & &-f &0 CD. O 4714 () RteaM tht tar* wight* So Ca?* o the iliter buttera sawping.. I 9/1 WCD 001430 <s> &MSUN3 AND ANALYTICAL METHOD FOR ASBESTOS at M<S' cm2 93 CJ H<< 0-* pW, Htm*5* w1CC0J t t* sart aO Oft ngj *ac* <SSJ4JC s Sokt sS Oy 5J Ait) S .W<&93 U0 %* 3 vs 93 0 5) SCSa 1 a 1s^ O <;> aw 0 CJ kGS> 1CU gO .iscJ 'O 3 *0 A 3a ' wfl V?3St li S*I3 fS o e <AreI* W tt n c s U 55A" '5O 40*T o3 3 Ot XJ f .*fi> .ff a: sw: j SB O <<0J 2 O< vCM f S-J X s) t0< g{ A CSL E1 8a h ci VB 2A) f FJS*i3 1 *s> 2 1 mS Sy mm4. W aS 'K*. - <<cmi? 0 -i Xnt <> * h i ?` :?4 f.2s*tl? LU iCs3l F<> *51 j2 ri* iEi*ti X gH, K" I * f-3l r. i s f5i&r'u-*I P C L -pV>*t* ACtCn-B; S * fi B P f*(9 'gScl *9 3J 'o5O sw t * oV `Qfifltl. 0 v (3 ta cs fl 4Si fl h j,, Aa9 ai /9j rgtu*J t 4noiAl .1tgo. uj e os r~t0tW*o *SJ i e Jb8yOa t0i t a Us a`XJ 1 tfl t MOfa.^*i &H C g *U C ? <> >% & T#D <4.1>t StI ^i ->* $ 5 XJ c 6 .pC r0Sa3fl c Jt 0OIA Jt9Ou o 0t -. fl M1 t ' C o;<, 3B tu 1* 3 e f2j s S *0 i*Ji=3Jl4 a ee4 01? tSft 1s 5S.'-"i 'ft#l ri:s; i rr) r > SU'*oa B s taH fl* S? P o 1V3-J B&t s<&8L 8 p VrHaI^I &{s J. *! 5 fI r0"5a5r*J>J <8rt s 1Wfl a: o a 0 X9Cp>q M tOa*a 0 *0 1 so o cufol > Ss.0'J A VI <v wa WJ -i rtaHV mio <eo= tty o- 0c0fQJS.9l X i5'> r. a 2t it 0o1 #cH 5a?>, c; o S t*fl +4 m41)*H fl ^3Cfl fSti) Ot' o> e.4 1 i fl G % pS s fi %o3 .e ^CSl* V 'U>, i1 iS se t t M2? <`t*ri *-JtV KN<lv 0 s** O 8$ S ? fg* nV5 ?> ta 3 hS i4- g P en pP-- < O r* g fl asd -0 >-3 WCD 001431 *751. 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H R P, G- 0 7* r95> f8fs&ra#i*woG SV " CU) e. ro** >otri* t 1o(K f'V.lJ sfl <w* %aiMf *ffSM1tti'*' Vf-es acf--i* t fS? t) 9fl f l i Cti ft. *3 ''By-J fl * ev 3 2 Tfll r *" f l r? f f BC3T' Oo <Os>1. fi 3 yR *;t-) " fit *0 r C tt ty2w-- firl\ t*> :- fSl ' *" f tt-e fv^t s tff5d$et5. o'. i3 ?Si pi* 1 fe fe fMt* O PC* VY p9*1P. y 24O) w f S P5oi e o 0 fllk *'rrwS0>* iWcffLn--?t- 0* 0 A ft Mi ye pr,>i ffer Pt1Aea'* 0 ft R >T* ?Gs fBp-l> C>> /3J 'POGi ry-** PKo- tf\"lr0 S f ;J.*TV n fl: c 1 Xt-i` A te Cvr1--c-0, fhmi* oe o r royt !i 3 i 1 ! * WCD 001434 > D fa O M NrCi: Orfrat f$rat to-v4 j V#-wfurn0(*a*3Co*1*Tr353l9ci oXV*<003wg(m9uo-4>!393)- --1.w9aosiSuaaoo.i: %*AJKe*r0f0fCC*-Ja<3>j>iLn)* J*fbso0ilZH>0yi <u9tanDmM:>9a>?t-i5. $.aaJA&kCcwon3cA5i*J**i1 o m-5 <$ <O3 *fa flal c u I ?m V fBa 4 S*> 7 cfcai <5 e -i /V? O *> fe vM}i p .a # O cf*a* 0S5? TJw1: wI -L;ss's2OV*-g-4j. '<ftu?f*i*sras2*1}) oJi1f*`f5a2a1 $<0j,fBSu*Oa3-ear4>c2i. 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XAJ 2 V5=J3I S TJ M a sK X2 G J5 ? .54 4sjT M . wr>; 4 "OM n fMi WXJ 3a k(i"A-l4 f8i a g* Uft Q 0 OC *^Muf*JiJ9 Cm 1a C(0i X Cfi3 M a - 5t41 &c s '-S 1` 0 iWwCJ4 ft fb X O XJN* XN MC$49* ft s22 im mM WJ C0 fs t 1 ftftt) M Ma Xfi a ka X 1S 0 CD ms ' V to R 2 O 1 'J ft o 1 i n> 8fe. ?a 1*a ?I P8U- i i Q 1 f y S m2 3 ? oO iS U r5 %<M 5 i p O ir* fso* 1 tato a Wft WCD 001437 mj t!> v H * U > a ** o A w | s s 'il cl o." o A*i O ?; ta c-i Cl fl* C* & k> ' * rj a s 4* 1. a n 4 : j UU &> 'S j -k *P*3 <3 O IR l t> 9 c ri U S A> *3 t :; *S G *p*G Ai f l S S i a ** <--j 15 n3 o a k* bS t-4 V *? V-. k. G s 9S rJ < e.': 0 * 8a r i i M a <t > T Oi A fie 0 f. 1 M k' S JD a . J& r, A? A i > ' 3jj & 1 I Kw (R >' Wi as c o2* 1 m J S H 1> AJ *0 *J i > S* 2 & ** fl si J j Ah( Si -% 4p5 *5 V? ** -'S* : <2 Xi < C JS- & 3 - Uj 3 ^r A I A U a? t r 5, 'j 3 M a 3 O X3 ' < '*2 1 4< S9 <4 G r & fl * 3 f. 3 k e ; S *3 .) *5 6--I 4i Vl e # bs ? < C 3 sK V A? P ,,5 ra fl 3 o-: 5 5 o ? i fc ~ ft? 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