Document LpN7BwE2XqZ0zmq0B5EE5R2r7

oci C. 9, Reinhardt Frtruary 10, 1967 C -CC2* Z. 7 TOi J. A. Zapp, Jr. J. w. Clayton, Jr. fSGHt 0. J. Stopps m NUXCAL ASPECTS OP SB CBS OF AdKdTOS aid Aaamoa raccocrs wrnmi mw ccmpamt A nanoraadun mth tha above title aaa prepared la early oveeAar 1966 reporting tha dissuasions bald at Baekall laboratory on October 25. Certain af tha proposals node at that nesting ara bains carried out by the Tnsl nearing Departnent, but la general the nedlcal raeaaaandatlona have aot baao lapleawnted. A surray of plant physicians by latter sugsaaea that at laaat at do aot have an spldaa&e of raapiratory disease anong those with aa obvious exposure to aabestoa, but Z regard this as only useful prelimnary information - not the sad of tho inveatigatioo. Sre are four reasons why tbs proposals aada ia tbs aaaoraadua should be laplsasatod. 1. S data developed to data is suggestive but not oooaluslve, and both fro* tbs hunanltarlaa aad lagal points of alow tha data mat be convincing not only to oursalvies~bot if neoasaary to a eeurt of lau. Ve oust be able to daaoostrate that not only do aa oot have a health problem due to asbestos, but that the research aatboda used are sued that a problan aould have been uncovered if it existed. 2. Sts long "incubation period- that nay exist between asbestos exposure and tha davalopnant of cancer requires that aa foeua our attantioa on tha exposures occurring to tnployooo m tho period 1962*1952. At that pariod tha nunber of enployeee as Mailer (1930. 37,000 enployeeej 1940, 53,000 employees; 1950, 80,000 enployeee) and the potential exposure nay have bean men leas* DUP 1141648 DU 059130 3. BietuM of Point 2 above, it la reaaonabla to postulate that duo to the lneraaaa in the uae of aabeatoa and tba also of the population at naic that it *111 be in tha jaara ahaad t&at tha problem will develop rather than neoeeaarlly being praaant at t&la time. If me can dameaatrete that at praaant there la no undua inaldanoa of earelnema dua to aabeatoa, thia *111 be very gratifying; but it doaa not aaan tbat tha study abould and. It *111 ba Important to continue aooltoring tba expoaed popuiationa and a auitabla eoatrol group to aoa abatbar (beeauae of Point J) an occupational diaaaaa davalopa at a labor data. If va oonaidarad tba polnta aada at tba Mating in Oetobar 1966 valid, than they remain valid today and a abould put them into operation tubJoet alwaya to aodiflcation in tba light of further information. aa/dyb a. .ORIGINAL SIGNED BY j vtorps DUP 1141649 DU 059131