Document 06bO5XaxLyKL3NQornVw2RkJM

November 2 3, 1933 Dr. :U 2. 'Taylor c/o 3rlfcish-Airorlcan Oil Company wonentoa, Alberta, Canada Dear Doctor Taylor: The analytical results on the samples of urine and blood taken from the men who had potential exposure to tetraethyl lead on or about October 12, are enclosed. The results are within normal U n i t s and would, indicate that there had been no recent significant exposure to lead. The samples were taken, unfortunately (and 1 know unavoidab]L too lato to show any minor absorption of tetra othy 1 lead and it is entirely possible judging from the conditions of exposure that at least (no man may have taken in a little lead ovon though the samples taken some 20 days after exposure do not show It. We can bo sure that no damage was done and that the load levels are now within a "normal" range. Very truly yours LW3:vr line1 cc - Dr. R. A. Kehoe Lester W, Sanders, H.D. 3 i HE 0017309 Source Material : Submitted : Required : Employees of Dowell Inc., Upper Montclair, New Jersey Urine and Blood 12-23-53 by Dr. Emil Beyer, 95 North Broadway, White Plains, Lead Analyses URINE BLOOD Name Analysis Number Volume ml. Mg. Pb/ Liter Analysis Number Spectrographic Weight Mg. Pb/ Grams 100 g. 'W SB. . > 53A-9387 53A-9389 166 ..0*05. 145 0,05 53A-939I . 1 3 3 .. o .o6 53A-9393 157 0.06 53A-9395. 135 0.04 53A-9388 53A-9390 53A-9392 53A-9394 53A-9396 21.1 21.5 .. 21-5 18.4 7.6 0.03 0.06 0.05 o .0 6 o.o6 * One tube; both analyses run from the same sample Samples Collected: 12-22-5 Samples Received: 12-23-5 Th e s e re s u lts are all within n o rm al lim its . Th e ir v a r i a Samples Reported: 12-51-53 bility of the valu e s obtained on the blood f rom man to m an . is not n e c e s s a rily or even pro bably re late d to the variatio n in the s e ve rity of th e ir expo s ure t incide nt under co nsideratio n, but is of the type and extent that ch a racte rize n o rm al individual c o n d itio n s . The v a r i a b i l i t y of the two s e ts of re s u lts ( s p e c tro g ra p h i c and d ith izo n e ) r e l a t e s to p re c is io n of the two m ethods. Th o s e obtained by the dithizo ne m ethod are lik e ly to be the m o the differen ces are not significant. The lo w va lu e s o btaine d on the u rin e d e m o n s tra te c le a r l y that th e s e m e n did not abs o rb s ign if of lead as tetraethyl lead or in any other form . _/ Signed: Ro b e rt . K e h o e / M . D'.