Document 8Rpky1nO0YORqYmNB4kJKzok5

FILE NAME DuPont DUP DATE 1968 Jan 10 DOC DUP006 DOCUMENT DESCRIPTION Letter to Kenneth E. Keuper from G.J. Stopps Stamped as Exhibit Morgan 3 ce C. A. D'Alonzo D'Alonzo J. P. Morgan kapp kapp KENNETH E. KEUPER ENG L 1285 0035 6-00227 6-002267-00227 # EXHIBIT Morgan 3 DATE 10-23-86 10-23-86 MASTROIANNI & FORMAROLI INC CERTIFIED SHORTHAND REPORTERS January 10 1968 I was pleased to hear from you yesterday that consideration is being given to monitoring the dust levels at 21 construction sites around the country at regular intervals examined I should like to suggest examined for asbestos so that but also what fraction of the that some of these dust not only will the total count is asbestos samples be count be known A further point that is important at the moment is the type of asbestos being used Since there is some evidence but certainly not enough for a dogmatic statement that the type of asbestos may be important in determining whether cancer is produced At this time crocidolite is felt to anosite In line with tentative values being be possibly more of a risk than chrysotile or this current feeling I am enclosing the suggested by the A.C.G.I.H. for the TLV for Asbestos The recommendation made is nothing but a proposal at this time but is indicative of the trend of industrial hygiene thinking Unfortunately these tentative TLV's are often taken as prima facie evidence by labor unions and state regulatory bodies A further straw in the wind is a recent report on smolding amongst asbestos workers which indicates that the smoking asbestos worker has a slightly increased chance of dying of chest disease compared with smoking the asbestos Worker but that the asbestos worker who death rate smokes shows a muchhigher due to respiratory disease than does the smoker who is not exposed to asbestos In summary , it seems essential to know i) The dust exposure| 2) The type of asbestos 3 The state of health of asbestos exposed workers at least - at the time they are hired and at the time of discharge spoken I have to Jim Morgan about the matter of reading the dust counts and we will be sending you a cost estimate in the near future pgh Enclosure ORIGINAL SIGNED BY G. J. STOPPS G. J. Stoppa M.B. Chief Physiology Section