Document aDJjwOKb7gny6qrvgg5jYEr8M

29 Yay 1956 Ethyl Corporation 100 Park Avenue New York 17, New York J j Dear Jin: I am enclosing a copy of a letter to faeDill Air Force Base which closes our file on the thrie men who were reported to have absorbed load freii their work in the knock-testing laboratory, ] Your office should have been on the list for a copy of this letter originally, but through j oversight was not included, j Very truly yours. Enel, Lester 17, Sanders, M.D, hi .'ay 1956 las Preventive ;'edicino Inspector TacDill Air Force Base i'asjpa d, .Florida Dear Sir: The analytical results on the blood arid urine or Fosers, Kinter, file and Lcrer are onelosed, These results are some what loner than tho- mean c one entrat ion of load in blood and urine, respectively', found in people with no exposure to lead other than that encountered In food and atmosphere. It is certain evidence that there has boon, no recent industrial oxpoauro to load of any hind* I was informed bv telephone that urinary canolas on these men had been reported as soro for load at the same i* mo that blood levels ranged to over $0 nlcrograns per 100 oraps This bind of relationship between the load concentration In blood and In urine Is paradoxical and on both the grounds cf theory and thousands of analytical results, xfonld he : oat nr lively if not impossible. Those results, then, particularly in view cf the fact that the .subjects wore clinically v/ell ar: ,d asymptomatic should have boon discarded or at least v lowed with extreme suspicion. In spits of the report of a defective hood hoiny in uso in the laboratory, mo fool entirely confident that those non have not been absorbing load and there Is no reason for removing them from the job. Vary truly ycuu-s, USStvl r , 1 cc - Dr. H. A. Kehoo Col. John boysen ' r. .John furry Looter W. Sa.nd.ors, 1,11 K 0017341 .1-.- ; N21048.01 'h.' : TT :TV~'W. i - - - - - - - - '- - - - - ----:- - - -