Document RJ4aJNz1EGqLRZe998ex9v1kV

FILE NAME: ZD^D/ DATE: K DOC#: ^D/ DOCUMENT DESCRIPTION:D>/ZZZ ZZDdZD , . - ..- X-' , . ~..'.. ":~-'~ \ ./. ...:.-<::.. ~ \, ..... "' KINQ. MINE ASBESTOS CORPORATION Thetford Mines, Quebec, Can. * * *- . . A rechec~ survey of the dust connition~ in the mill of this CO!ll:-9e!'ly ;;oas :n.:de .by the Industri?.l H~?lth ::action l)f the Metro,?Olit:n Lif'3 Inr.ur;nce C~::f?~ny on October 26, 19L:l~ A previous study h~d been ~joe in Ju!1e, 1930. * * -:t . . ~~~,a)~ . rtJ 7o !OJ~~ ~077 =:a . .,, . INSTITl.'TE OF OCCUPATIONAL >.NO EtMAONMENTAL HEALTH MONTREAL., CANADA . . -2- ~- No chEnges hcve been m~cie in the ill on"'r~t:'J!'l!' r:~!1Ce the f:!.~s _ ... _ - ~ur-1ey. The 'nly effort at du~t sup~~~~~ion con~iste~ in ~!E....'..I..'..H..O...~._if OF tA...iP!.Ii~J .to.ND ANALYSIS The ~~mples ;.ere coll~cted end rnP.lyzed (1) e.nd used by- the United St?.tes ?ublic Hee.1th Eervice. cov~~ing ~o~e conveyo~~. the !'!et!lod cevised The follorlrig t.Eble shor;~ the conce!ltr" tions of dust found e.t the tim9 of this survey. ... . . .' .. l l I 1 ~ . . . ... ; \ H':"J81H.!H.' -.-..,1:: .\(j/.,:;~<> .4 A ' ' C(l')JU:-lt.r:o:.l Pouf bIl!i1c:1.Hu~eted.l-.t:h1 SDeursvti,c.J:., J?. uBblloi!cl~HfiP~i:l.lCth ~n:g:-:.,1J.l.-M;t.int#!?"1ll7~,v?lI'1e-t~~,~.!1.n9".3"5t!.o'.'1 i?!ld .: : ~. :li.ii. 'ii iii :uu= Sn mpl e No. Location 1 Crusher house, ?icking belts on pri111Bry crusher Kin~ Mine Asbestqs Corporatioq Thetford Mines, Quebec, Can. Date of Sampling Cu. ~'t, Air SamQled 10/26/44 15.0 Millions of Dust Particles Type .per cu. ft. air of Dust 11.6 Asbestos t~.lc u..e 2 Mill Bldg. 4th floor II 20.0 II (f~ns LJnd collectors) " ~ ~.iil1. Bldg. 3rd floor II fi1J1~ screcnlng 15.0 17.0 L.. Mill Bldg. 2nd floor II 15.0 26.6 II rock :::creening .I,\ J Mill Blcli: 1st noor II 15.0 18.1 II bqrning Remerks Test made on run of small ity of rock. dny. Not full duction. snr.cit <!~ant- Cle~r ro- I Brick huildi.n~, 1"0odcn floors. Window~ open. ClePr c:lly I I \J I Wooden floor, "'tndows open. Gl~cr d~~. Concrete floor, windowf-; i-:nd (loors open. Clee.r d~y. ~ :.at'~. 1 loJ.lillrRl'9'n"'f'ttlltn1unu:1~nf'!TTJD"'I' 11n11rnuour&t~u.llU...U-1Ll!...a.1.l' u 151 ' ' 11 -4- r- " f.n= F Ar.i9le toilet fE.cili ti~s sre pro:i.:ied keTJt cl 0 ~n. [rinking ".t>ter is },~:_?.:.: SU,)lied hy bubbler tY!)e fountc.ins. He~ted room::: or cE.b~~1i::; E.re locr.te".:\ on 2ac~ floor of the mill building. (;01JCLUE I.JNS !!ill, !<.ECG: :i:1EriDATI8NS The concentrations of dust found. at the time of this survey e..re much lo-,:er the.n those found in 1930. ThiE mey be cue to the mill riot op!:!!"!'ting to c:~Ecity end i~?rovement in the hou~ekeepi~~. Coverin~ of conveyors is, no C:~t;'bt, ~- ~ontributing f~ctor ulEo. Th:::n the ~'"'!)lee --<?re tt..ci:!l, the ~.-inc'ors ~':"er ~~ 09en end the day r.Es clear. It is recor:i:nended thLt efforts be mr..cle to further re~uce the ru-:t con- (2) centr~.tions. P.ccording to the Onitec~ ~t~tes Pul'.'lic He:?lth Si:r.vice, five :7!illion or a~bastos dust. '!WALTH ru~zA:<.rS The!'e e.re attached reprints of t"i.o stu~ie~ rrhich rn~~ be of inte:?.e~t in con..11.ect!.on r.i th the haze.rd of e.sb~~tos dust: "Effect~ of the Inh~lEtion of Asbestos Bu~t ~n tte Lu~ge of .Asbestos ror!:~~s" "Asbestods" - - - (:'<:)TJ .:. - - -- P~~lic - - - - Hc::lt~ - - - - - ..:er~:ice, --------?ut-:ic Her.:t!': - ----- E'.ii..l-;-~:_~ --- !'b. --- _,._.1,. .-,--"A--S-t-J-~-;r r:if - - - f:-t-P.::-to!'i~ int~':' A~b:~tos Textile rn~~-1~tr-j", t:::-;3.