Document RaK7dBLEJNpz109KEoqpOVOra

FILE NAME: Drywall Spackling Compounds (DWSC) DATE: 1975 DOC#: DWSC014 DOCUMENT DESCRIPTION: Newspaper Article & US Dept of Health Press Release i j r ; j y. -; i ; , ( o v . h.'rVC MAXi ' k-V/H -M hold :-x ,i;'h t-i'/y h i\v not. yet p r o ', f ,w ;;1 '\vA s;'/: >-::riOio<iy ;rexe '.on tor ! -l-Y a. u a t i w > ^ sclent sMs be he.ve w \W: !*' !y U. .'i,U., t). ,: tif iuC-!. UiCOo a;ad that itV MJ;J'Sir.no'.- !>! V>v'D.. iorh'ir;til y again st i;.i i'1i }'O' e.- a i.a-,;,uM1 . viv:OX ilifuXJ ia <\ .es rol in- ex i:U ia W esi A iria. Ml (>ei cent o f lili- S'cpLt ion is lojf; V lvergi live. re N>r', :< blue k?. in 'i *t?* Unito] 'S ia e s also c-lC R! said n t i o vi ViL'X l;VOXrie*, an d 68 he p-I C".mi a.re D n liy .KT-aOv c. na vI k caus e o f liiCr- v ads, Ll) .: sci CM- ;.i>i C M\'t re :i i>ic .o t;.rosU r ti 1C1!' i3 bora- r ' . ; -j ; ! ! i. ; { : i V , j f . .-tc- - <. ' } /- ' --'--AA'- 0': - - -y / , i . - ;;X - Re i L- r u v : t.. * ; VD M : / '" 0 ' - 0 / / * s ' f , . - r ' ,e ', jf /' ; w ; w - ;y / o : A ' ' ^ 'i , / - : : y ' " ; j y - O y . . - -OS; . S: i ^ .: .. '.. V. . ^ - , e.k:l - --V.S. photos Mary McGhwtss v'^-'rvfr" ,^.-s ^7-AV .O'ViO: \Lf c/' f y w r-1 r T ) r v D FT -T if- .T *V-"(v y;,5v. V;' 2 v-'wi- :o; of lasers, rangi ng from low .}>owercd to ones jjrodueing no harmful effects to '?v:- those that couldI cause biological darn :or age item reflect ed as well as direct cxod posnre. 'hose which could produce damage must c:uiy svanting labels. ;Cd Lasers used or medical treatment of must, in add:-i or, iiavc a means of 0- raewuring the r. idwtioi: intended to ir~ raJiaie the him lan body. \:,C FDA said rnw; of the required stsrxiards eithe: ubeady are in use or iOiS ecu be incorpx.ir rtcJ into existing prod,`US acts W little ex vs Under !'ik. re.`y sHvitAUuS, hisc if, mu i'l. fOi hs 'e wot'.ct.\e hoYxsiniV ! users also r, ;i?st Iiavc a s\steni for -SOS uk!looting wirers ! Ixq' are ready tor tire. ;/ \ w ; t ' ' " ' - AM-.,,,. ; w'- ' ! ; i, ; inverted iuicroscopt seomv.ee ixkeu r.v DIP, sho'. '\ (da :c; l g: t, : >'V:,,, , vX; ni vi s ion or red b k o d cr-i! by nwhr su pinrci'e. /Altv aUxeb meni by >..-c ;Xd'dl; (arrow) there is marked dirtoriiou of t li V C ja l i o c d by slow , a tory remits using monkey malaria to vivux malaria.) Fwrthcr, -sceeamg showed that all Caucasians tested v/cre Duffy posi tive. "This ts htgli!" suggestive that the double Duffy negative is (he ck-Uominant of resistance,'" Dr. Miller said. This leads to tire possibility--stil! in the future, however---of developing a neutralizing antibody tc the Duffy positive antigen that would block in vasion by the malaria parasite. Such a preventive approach could offer new hope for populations unable to rid themselves of 'he disease as the United States m effect has through mec cao.;r. and tirrough cnvii ?1;fiMi* ivi conioc;ls. Fox exajille, iri West A frix v-'lisfi falciparj.:n niabi la--the. ir,: ,' virv.F-n oi lie i orve coi union formi. vivas: f .* D i P t ... b i i 1l a i i n j J. i i_ s j jo. ; . s. / . ' 1" cut, near.y ilX) per cent of pre-school have ir1C ehiS'.a".'.se, .Aii. mala.ria. 0 -,o1Cr`'-.mi-is on w cst Air: if the ictic f.teter ira,'ive ns of ma lar2. COuk; be it vacci ne n:ughi he 0vwiop; di OV.riilVi eA'cle. One merozoitc. once it penetrates a cell in the laboratory, for example, multiplies into 10 in 24 hems. r* ni.m, f ry 'r y aa r> J fc-<>.>' U-eA-' e |] r\\ Ls L l w-V Zlk M . : ' Vt;>* \ j v W i l 1- W-4..C [} (a ^ ?'V X-m f--'.* pX' X y r--;y *=>* \ *> ww.r :? u w i 'Ll --'5 \ :\\*s y i \ z. / AV '-w-M Resuakch T riangle P ark. N.C.--Aopreciable amounts of chrysotile or other asbestos minerals were found in samples o sparkling and patching ccmpo unds aim'lyzt::d by grantees of the National Ins Ciitit,- te of Environme u ful He iid/ Skaex CCS. The invesiigH*:ors viso found si: bista ntia i ereiqui a-', u: queiriz. talc, a:iid other iminerals. buri cerrnore, dr san; des obtain ed during the use fk :;sbest os-comaini ng spackh: cornpoui idS were analyzed a:iid showed concentrations frequently in excess of the cuirent .occupational standard for permissible asbestos ex posure levels. .... Fiber counts momsutcd during nuxng weic found to be 7-12 limes greater than the current occupational stand ard. Detectable fiber concentrations weie found in adjacent rooms during mix in ti, and fib-cis were still sus- PCX'-k-d in t h e r o o m a i r a t l e a s t 15 m i n UICS, ; ; U c r m i x ' m g ! r a! c e a s e d . *'h l a - m p I ' u d i n g s ^ x ! A M !,r L V LA, lA: Si j..b!L il y o f ' ! g i n k r a o t a s b e s t o s e x p o s u r e envina ne construct! x Dw vid P. R a il, Csiw riS or- ICC IOC, sc A d d i icnal w ork by tlw scientists so 'f CSS that members o f due entire hr nssehoi-d or o ilier occupants of c tX-.riding may also iiibaic asbestos Ak-D's. 'i h.:S COMAi occur during u u xu gr S.ynding. or civ:arxnj; uc oi ucoi t, cy 1,J < Dr. Rali said, the invesiiyatcrs, ali o the Mount Sinai School of M ed.aw . In xv York, have accunmlsteu e . `u.e e'-wlm'ce innisaiing that far Dm i 'wn i A c i a c a SV VX p 0 rr a r e 01 t u e w o r k c n - v w o n m e n i is c a p a b le o f p r o d u c irtg ar- b e s t o s-rci a te o dir c ase 'V i: ! i i r - . ' est i pa t e r s a m l y w d 15 r e e i x . - `iM.vr, ti v e s a r o p i e r o f c o : a s u . T W r r p w x - ling a n d natchin; co m u olinds a n d 0 o ' i n d u s t r i a l cl ; y w u .)! i - w n g c o m - pounds for asbestos m in w d contra::,. r ivc of the Ik consum er spaef.y a n patching samples eonkmuuj p i naba: m rounis el i;h:yrr,ti! 0 ` n asbestos mmcrais, vs w .i o ; _ l h intinsi mo 1 pi educe; /! .i !} c- <_/ / / .4/ li A vl .n * J U .S . D E PA R TM EN T O F HEALTH, ED U CA TIO N , AND W E L FA R E National Institutes of Health Dr. David P. Rail FOR RELEASE IN A.M. PAPERS Office: (919) 549-8411. ext. 3201 Analysis of representative samples of spackling, patching, and taping compounds by grantees of HEW's National Institute of Environmental Health Sciences* has shown that some contain asbestos minerals as well as other potentially harmful substances. Measurements suggest that home repair or construction work involving use of such materials may result in exposure to dust at concentrations sufficie nt to produce disease.** Workers exposed to asbestos have been shown to face a greatly increased risk of developing lung cancer, mesothelioma (a rare form of cancer), cancers of the gastrointestinal t r a c t , and asbestosis (a scarring of the lungs). These effects generally do not show up until two or three--and sometimes even f o u r - decades after the f i r s t exposure to asbestos. Recently, Drs. A.N. Rohl, A.M. Langer, I . 3. Selikoff, and VI.J. Nicholson at Mount Sinai School of Medicine analyzed 15 representative samples of consumer spackling and patching compounds and 10 of industrial drywall taping compounds for asbestos mineral content. These MIEHS grantees purchased four of the ' t (more) *The National Institute of Environmental Health Sciences (NIEHS) in Research Triangle Park, N.C., is a component of the National Institutes of Health, one of the six agencies of HEW's Public Health Service._ Additional support for this work was provided by the Health Research Council of the City of New York. ! **Details of these findings by Drs. Rohl, Langer, Selikoff, and Nicholson are ri being published in the current issue of SCIENCE. \ 1 ` >T. , !./ r l' y i v -- l u '-s - 'S ' - f i t 2 ( ( /packling and patching compounds at hardware stores in the Mew York City area ' / in 1972 or e a r l i e r , and the remainder in January 1974. Spackling and drywall taping compounds consist of finely-grained white powder or prernixed pastes. Although Plaster of Paris is supposedly the major constituent, ether light-colored materials including clays, micas, quartz, ta lc , and ground limestone supplement or replace the plaster in many formulations. Additionally, chrysctile asbestos is added to some products, apparently because these minute fibers act as reinforcing agents. Analysis of the 15 consumer spackling and patching samples has shown that five contained appreciable amounts of chrysotile or other asbestos minerals, as did 9 of the 10 industrial products. Many contained substantial amounts of quartz, t a l c , and other minerals. Once embedded in the lungs, quartz or s il ic a p articles--!ike those of asbestos--may never be removed. They can produce chronic obstructive and fibrotic diseases a f te r prolonged exposure. Talc also can produce pulmonary fibrosis. Air samples obtained during the use of asbestos-containing spackle compounds were analyzed and showed concentrations frequently in excess of the current occupational standard for permissible asbestos exposure levels. Fiber il counts measured during mixing for example were found to be 7-12 times greater than the current occupational standard. Detectable fiber concentrations were I found in adjacent rooms during mixing, and fibers were s t i l l suspended in the t room a i r a t le ast 15 minutes after mixing had ceased. .:'J These findings suggest the possibility of significant asbestos exposure -< during home construction and r e p a ir^ A d d itio n a l work by the scie n tists suggests that members of the entire household or other occupants of a building may also inhale asbestos fibers. This could occur during mixing, sanding, or cleanim up of debris. (more) / .Jr 3 r i These results are alarming when considered in relation to other evidence being accumulated by the Mount Sinai group that indicates that far less than the intense exposure of the work environment is capable of producing asbestos- related disease. X-ray examination of 210 family contacts who lived with the men v/ho produced asbestos insulation at a Paterson, New Jersey, plant from 1941 to 1954 has shown that 40 percent have the kinds of abnormalities in th e ir lungs common to asbestos workers. In some cases, the worker had been at the Paterson plant for only a few days. Thus, i t appears likely that the use of spackling, patching, and taping compounds containing appreciable levels of asbestos minerals in home repair work may expose the user and other members of the household to concentrations of asbestos that may lead to disease. ###