Document o9d0jYno9bazpEYvr5bvndNj7

October 23, 198S George F. Kirby, Pn.D., President Etnyl Corporation P.0. Box 1466 Bator. Kouge, La. 70821 Dear George: It nas occurred to me that you would be keenly interested in knowing the status of tr.e investigation concerned with a tolerable level of lead in the general atmosphere, especially at cnis time when the goal of the work is near at hand. I shall have to sit dow. with all of the data obtained during the past several years duri:.,, which tuis has been the point of attack, and see what I can come up with. This can be done wniie t.xe observations on our present eicperiinental subject (who is out of phase with the schedule through no fault of his own) are being completed. There is little doubt i. my mind that his belmvior will follow closely the pattern of the performance shown in the present report. Tliis obviously skctcny report was prepared at the request of Dr. Plancey who had to report to a committee of and the results had to be picked up just whore they were. The latter are quite sufficient, however, to reveal the important outcome of the experiment. I have sent copies of the report, incomplete as it is to a number of the persons most concerned in Ethyl Corporation, dupont and Lead Industries association. I shall be going to Holland, by way of London, at the end of November, to participate (by invitation) in a Symposium in Amsterdam with a number of outstanding European men in the field of Occupational Health, in which standards anti practices in the lead-using trades will be the subject, a report is to be prepared for presentation to the International issociation for Occupational Health at the Sixteenth Congress in Tokyo in September of 1969. I have no doubt that there will be discussion of the standard for the general atmosphere. I've been askea to discuss the papers being presented (which have been sent to me) in some detail anc to prepare a record (later) of my comments. It is an opportunity that I would not wish to miss. While in London, I shall meet with Sevan and others, and Dr. Barry has asked me to visit the plants in Cheshire to follow-up a bit on my last visit. I am pleased, of course, to do this. I would not like to anticipate the outcome of a critical and statistical examination of the information obtained from these experiments by predicting what the "tolerable level" - that is the precise number that emerges from tho data alone - will be, but I think there will be a basis in theory that will emerge, and that this can be tailored further, to some degree, by physiological considerations. As you may know, I've been exceedingly reluctant to offer guesses, as a substitute for reasonably firm experimental evidence, on this highly important matter. If a number for load comes logically out of the experimental data, it will be the first example of such an event. George F. Kirby, Ph.D Page 2 October 23, 1968 In view of the conducting salutation of your last letter, I am happy to tell you that I had a thoroughly delightful vacation in which not the least important factor was marvelous fishing and riding beautiful trails on horseback. The best fishing, of course, was the farthest away on the trails. Sincerely, 1UK: wp enclosure Robert A. Kehoe, M.D. Professor Emeritus of Occupational Jtedicine