Document dqrz7kpgde34KdmYozaMmEwG

FILE N A M E: US Gypsum (USG) DATE: Decem ber 23, 1968 DOC#: USG 104 D O C U M E N T DESCRIPTION: 1968 M em o from GR Krug re asbestos and cancer i Gu ru V u $ G 0n n ^ 3 <7 TG: Alii. r i - . ,Kjwaszan^J AQM: 186, G. H. Crus ~ fr^ zi C_kcC3tj q f J(X n \x Cocaabor 23, 1963 -- d upon i n c r e a s e d adverse p o b l l c l t y and ` i " B " h ,a l h It U - e d i c a i and i c g a l to a s b e s t o s . or to approechos b o s t a , t a t , vo r . . l 7011 wlttv t e n o l p o l o ^ , e a r r i a t auniida oo uu rr rLaomcpnann-j. approach, r e l a t -- re r-ln o lo i? v h ^ j^ rs^ ^ 2 Aabeatoaia i s a f c _ of p n ou n ocon iosis, which naans an7 change A i' l " Sa lr' dUC0<i by lahtatlon or t a t Asbaatoais ia a fora of o n n i-o m ri .) i p n e u m o c o n io s is caused by the inhalation of asbestos fibers. p o rn o -. prolonged Aa&aataS ^ 3 Ser' CrlC fl3Ce " p p l l c d ca a group o f f i b r o u s n - a r a l s co o p a a e d o f l o n g f l e x i b l e f i b e r s t h a t can bo s u b d i v i d e d l o n g t i - * >--<i-..a..y i n t o f l i a a e a t a o f v e r y s n a i l d i a n a t a r . ;; "- n e r a is are s i l i c a t e s and they belong eith er to 3 a r p e n : 1 " a Qr to to a n p h i b o l e group o f m i n e r a l s . 7>.0 =o s t ` -a... /a. - c - / it Chryoociin (white asbestos], g ^ b e r o f the s e3r p e n t i n e g r o u p . . _ ^ f * ^ T Ji I i s the prine typ* usd by u s . thar -portent ferns arc acooito ' (brown) and c r o c i d o l i t e ( " j TO <-w` r . llA *. A. . U n u e d S tates G y psu m C o m pa n y ; c) -2 both a f '-tiich belong to tho a-- , a-,.r,,bole trouo. p la n ts 0233 one o f theoe. Only c.-a of our Hoot o f t i e c i r y a c t i l o =o=oa frc= (Jueboo, t i o u j i zuoiio.- a------- a o.-a^protucod 1 f t n e n t , A r i to ar.t C l i f t * . * * * , * t i e source of a l l of tie a io a ita aid c o tt of tie o ro eid o ilte. A. u s t r a l i a and B o l i v i a sup*p*l3y -sceaaAl-' qcuuaun.ttiw*--a.es. o f- c r c c i c o l i t s . a o e d ic a l tr=a a r e o f te a usewd J*-- - Canilonoh-p .to lung d is o rd e rs and asbestos: PaJ=aoar7 FI,r=3^ - 'V p ro creo elce do5e a = ra tlo = o f ti e lung v a lla of or.dorteriiaod o rlg la L oadlij to d e fio ie ii e e ra tfO i o f t i e blood. l a o tio r r d a , t i e - ---------fUiotlor. of tie lua.ta ( o r o i d e or -a es) Hesotba lia n a - I s aa rr.-*~. w- c a i.jjn a n c y v^i i i n i i n f i l t r a t e s *^e lung c a v i t y or t t c M e u i a z L ' la v tty , spreads "3=i d l y and i s in c u r a b le . - I - ~ *r.y canccr-producing su tstu rss. Asbestos -5 be^.evso to be a carcinogen or carcinogenic aoer.t. lit*0J1 OtO) C o p y r - A :N - ^ - indi. recensiva study or the zni-><r ,, * ' - -= -- o u n i; b.taeea dos- a, - , , o f attc^ure . . j . u , b-ee and l e -- - nd w..a d e v e io c o o c t o f the 11T. 5 doc-ozor.tad , 7 th e u _s _ p e s i(__ " C' :S " 3' ta^ ^ le industry. w**e '* fM Cr-a a l a r r i - g f e a t u r e o*' a * l1ea s t* two 3ritish Jourrta1 of Tnj,, ' *"*3 1 *a?0ri4ci It the Ta < ***r.al Medicine, is the fact r 7^ - * . v1=;, l t 7 or ^ a iu j ~ "" d" e l= ' d t t . i i 8a,, rtlh o U ; ' -- " 3' S~ 3' u.onai ezuur*-- ow - l e s e v e r a l o f t h e p u b lish ed stu d io s r c 'a t 4- , ' cancer a r e i n .=*ree--ss^iv. ee , ttn- o group s t u d ie s cade ' M h" -toa - i*=* = 1 - 0 . . h7S proboM y ud ^ , --------- ----c. .-e 1- o ' /--* w *------a i c - ' " wSS asbostos *in***d**:';-'r'--~ v/ and u,, sa"^ -- _ pol. , s .e " t s ,ii* w -- = - - *> m oo o1"" P ta v io u s c--c---"-'-c--e----~-"- - ,s7iuuys .benJ a, ita s to sl^ --, <1. =?0" --* " - - - - - C==CC.-.-.r , U c _ , . . . .......... r , i ~ - p---a--r--t i =-' s s t e r c u b ic f o c t over -- ass c . 3tCGC.CC0 cancer seaa*"*- 1 - a - o, scv3r a : y a a r s. c.n no 7 o. -a y r.st be v a il - i m- . - -h o'-l=s *r.-=svv aQr-ea WoAf cccc.^- cea--.n. -ine 4 , ` :ac i k**c-c a t ic n --4--d.- ***w ws r wO4.- ^ - - s p a s e c *c 'u r - . ` ' suen cnnntc as 1 O C O P Y R e ; AlNgr* c^cy ) J- 1*T~'-3 a 1 * B .M r ,, g. ^ r / ' ' " * nbs '8 th e ,.., , . e , s*wUC*` a&d dca*^. *c*M e tie r .. c- ` * . i ft asS,*S?S*-^,s,. p.'3duca . ?* - * i o n , t.lit03 y., , ' C` "c~-a or ;ha asbesto... initial te- t 'S " ut 23 to 2 5 ' la=* - a,d 13 " *1= to e>.. 5 W0-'! !0 8evc:03 .. . era who ^ ^ ^ * " <*.* t5it c3-ncsr as t'-a . . . *- pubiio. I; , s tire s *-. , . J. * - * l3= = . 0:. J ... > C3t s=oke h57a n w- 'ocr j sdastc3 ^___ *"" *A^- 2 vr*^ ^ ge~eral ? i i c . T2. ***'" Cr' Ce or Iza s esneg, - v - ^ r7 bei.,5 - . ^ "* ent ai* o t t o : hc -- 7 d^ s t c 3 asbestos ( ; S a l , . , c ` - - u l <ftata = ls - 5a'* b o ir^ h a r -. .r 3 or ff=ss tt* * cs (I'lilJY-W.XT'Vi'Mp ^ c r ic t- u.,, . " ` -- asili-, tm a l - 4-.-- y -" rat-. weia7 i ............ ^ n o t t u e '"'i; i* M j4 u^-"-5 as5 S3 3a s <=r c c::<=s* : G2- " * -- S ^ I c r . t s . ^_j 00C3e"- *l a- -Va- ^, n *7 "r =?e'b:eo c '^ Q ? vL p*s--. i <,*/,4\|rr3 _<2 u -7 - ^p art-en t :gg Pr*r sw-3*uountt;i?7 i*** *K_ Q7 a 3 17--* * ^**Q p?QCflja m . ; " uao?" :y *" e" s* ^ i t , 3S; pr-aogPrz,,si to u/,,.- * ` e = ^J e . 0 e'*w ^ i c h w*.i? ^ S sta b iia w .^ * `^Petnaid v , *~-c da5wt3,s* wan.ara r r y , a^Uaa f c r ai? ,!: _ 3 a rs oxcaedsH r, , p- a" i= t i ste p , . . . . . "**S i-4.'<oa to - ' iasp" * ? < ! e-= ic y e e r , , , s ` = , ---- r: ^ - - -- =1^ , ; r ; -- . =- o r , ? : ; so ea ti* P * t t o r a u ia l7 e ,, a ra i, ' C' i t 1 3 7 1 c --ano< i u n it ee'-*-*-.i Cj a7. ' J ) i t t a o , loca**nn " = r`3 TM = ro t o ; ......... to t . i., a,, . c" - - M o t a s ' d" 3w S e p ia s v i i : --cad rracnan-' q' - ar- - i- =:; o v o r a i; a y :u K (i _ ' -- -- a n o , s. . . w* ^Pan ~j -j, ,, " S4---d : - v 0 i, v ; l i P= - - o u a , , - d "* c7el. ** =or- : W*,,,. \/ > eV >-353 a i 3 , bos t o , -P c iu -i _ , _____ m w ? u --=* -- eica_ .,_ r 80" * ^ -- ` So-2. L0S, - ^ 1 53 ' * 3 7 3 ; ' - -" `u-a_c,73r. rZ - o 1 L ) ^ 1 .7. . o ' i ay 3 ' a- ro q u ira d J ' ~a i s h a ll wbec >-oicca. " *** 0rc5~ S t lie t i. c O P y FJETAiNED^ .. C- C 'J -n- "1 O 5) I t i s a r c e d , i r a t ,, ' at a U P ossible, that f l i l r n<-i - be h i r e d -oorr aree a n^* -w 7 a o "*-isoicar= 7 -- = r ; ~ : s-- `^*"3*J?5^- W nw? an-psp-r--o v e s t i e ia ;a as-- tea*. a ,y Q';- " b ^ the P1 ^ , c o c p iy V i v . cur ^ * f - ' b i l s i t l i e 1 1 ^ 0Ci0r t02iC ^ t 3 S.- - . 1 * 1 *' --- -- --: -:ce; :a i a*re: c^f " - <,,-_,, , *e **=S3inf. - `--a c h e i i s sace bacicsreu-d s t o r i a ' ^ m tu d a or the p r o b i- ar, r ^ S t r a t a th* . ar^ a f r i c a th a t e - 3 t5 . W* w i l l k e e p y o u a c r o c c i o f c -7 u a r t i c l,e s r c n __ - v ` ' `-Qjor chasr*--" *- o_ccur, j - /cu ^FPC.-. anon jr.cn' d s . : 3_. , o c *tf be s e a t to D e a - * - ^ - - "OS3 r - e 7 e n t i c a u- - - i- = - "a" `--***- ^ca-* <9 ie e i lo a co e r SOos t h i s sub 1 1= tao a ^*ov n r s 1 P la n t by us f a r i e c r i t to -ha wi l i t is u s e o r = la l; ^t o7r t rGaett ii t o be s e r t d i r e c t i r the hands a i ' ^^-Kw l>"0 | 070 1 stribution; A G lit G^ eo-a-- i, KanuTactar' -- w a, J --- - t r t i c y ' v/*wu* `tr -O: -i1iS""a'*'T^3--cud wC3..oa. ctJ--iU,o-.npp.H-e--reo?s-e- -..-, COPY RETAINED " . -co -0?*V ^