Document ExBj6424nVy0NOvG7MJ6j3bK0

FILE NAME: Union Carbide (UC) DATE: 1967 June 7 DOC#: UC202 DOCUMENT DESCRIPTION: Letter to Dr. J.T. Hall, Union Carbide Europa RE 'Asbestos As a Health Hazard in the United Kingdom1 AUG 27 2002 15:51 FR BRENT C00N8.ASS0C-H0US713 227 201B TO 14104482368 P.02/03 i/MvwnxCrn' June 7, 1967 ija - >d ' .** # * * V fBjd " " iO"% - % ' * it- u / : .fis" . k V 4 ? , ' ,* * <r 1 & Dr, T. J. Hall pioa Carbide Europa A.A. 40, Rue Du Rhone 1211 Geneve 3 ' Suisse Dear Tom: Wa,, * _p?rt* "Asbestos As A Health Hazard In The United Xingdera", prepared by 1. c, Sayers, general I find that It is reasonably accurate, I do not attach very much importance to the data on the incidence of asbestosis and death from asbestosis and cancer because these are merely tabulations of events and do not take into consideration the numbers of people who were subjected to the possibility of the event occurring, * been interested in the possibility that the - snort fiber Coalinga product might have a greater hazard than the more conventional forms of asbestos because cub-micron silica has been known to cause a rapidly progressive silicosis after exceedingly brief exposure. ' .,.,were concerned about Whether the Coalinga material . .with its exceedingly fine fibril diameter might have a ' * similar effect in causation of asbestosis. We therefor' *' made- some preliminary studies in which the material tree the belly cavity of guinea pigs, rats * tifw i8 J"i*cted intratrachealy by a ' . - * method which distributes the asbestos throughout the * fiblJ e ^ the standard : '- fiber,and a long fiber obtained from ' 6f cemparioon. In the in .Jection study theVCoalinga reilned fiber produced the . ' t-> most severe reaction in the belly cavity, whereas the * ' rw'wi ,U, _ " A U 316 2 AUG 27 2002 15=51 FR BRENT C00N&A5S0C-H0US713 227 2018 TO 14104482368 > > P.03/03 ^ 2VarA fiber v.srv C3- " t in t w a Ics- severs, in the id e a tio n - '"tr - ii'ssrs caused & r.or' severe --sio:-., v.e *: f o a r -._3 I.vserv3iiau& a.-c. -/.e " -- Via -- --Clive, a ; o.:ly :,v : r " `:- a " r f?'r` c-v^ e -cess i s s lx s -. r*'" "T!. " "* : 1 * * p w #** , f f W3r be so?< :u> -3 -- sor esbearos ir. that vs aaiw ssouc. i t an early sir. sfc;r w *__ ;V ` .Itf_ v i 'gOv `-v,r .ii.'/ . * v T.4 . - . . - s i l t Valuw. L K-ilatcm s.v-t - . . l i . V ' u i '.'* " V ' ' V"* in tcra^ o f preventi::;; th_* * .rere la no evidence o f a s e is t o s ,y ccc'c.'T1t * -~" people ho have worked in an e.v.-iroxr,-- - , --- pS*2VOJlviHj lb>a ai'C I V/V,~f sonCer whether even a >Lri ; of - - v m L ** foot ould 1 a f i r c l i v f Ci<=ii * * .<*,,e alvc r:y u..!jLvfttlu.b;.i ,,,,-oo.-t CO ?A tn? 7aeia.Toconiosij Seocarch Counc_ fo r ao o f_ttw standard sanplu o f in n . .too 'iC i,ou*d develop *actei$u3 which o \ ^ ' -efux in naJds edapartx*so0*noK ivl.`l2sh -t*hye standwar-rldchs. o-vli -he 1 hope t h is -..111 co hclpiu.: o voi* any further questions p le s -e : ,, t ,-e hnovj. vou =-. o. u, 2omciu, ed '*t*3r tru ly yeur*, - i ' If/ v.v (/U ...'.oclvtc .'iLfUtal ft ' / / / */ * ^^3163