Document rebBxJqpQaoOa2jy8oa6OzdD0

June 14, 1948 Dr. Sidney S'. Goldman, The Electric Storage Battery Company, Crescentvilie Division, U s i n g Sun and Adams Avenues, Philadelphia, Pennsylvania. Dear D r . Goldman i - analyses. 'evith the analytical results on your patient, aether with a bill to cover the cost of the You will note that the results obtained in March of this year differ very little. It is apparent, therefore, that the lead exposure associated with his present job has been sufficient to maintain the previous lead levels. This is an important practical point, in relation to the transfer of men from one job to another. The losses of lead from the body occur somewhat slowly, so that, in general, it takes about twice as long to eliminate the lead as it took to absorb it and retain it in the first instance. Accordingly the level of lead exposure which is required to balance the lead excretion is rather small. On this account a man may fail completely to eliminate any significant quantity of lead, in excess of that absorbed, if his lead exposure continues at a low level. It would seem that this was vhathappened in this case. Cordially yours, iAK ef C-C-: Dr. F. B. Lanahan Enc Robert A. Kehoe, M. D Material: Submitted: Required: Urine and Blood 6-5-it8 by Dr. Goldman, Electric Storage Battery Cc Allegheny Ave arid 19th St., Philadelphia 52, Pa. Lead Analyses URIHE : Analysis Dumber Volume - U8A-U836 - 100 m l . . ... Specific Gravity Ig. Pb/Liter - 1.010 - O.O9 BLOOD . ; . Analysis Dumber :. : Grams ... Mg. Pb/lOO'Grams - I4.8A-U.837 ' Snectrcaraphic Dlthlzone - 9*2. l$.l - 0,10 0.10 The lead concentrations in the urine and blood remain veil above normal limits, being only a little lover than those reported in March of 19^8. ; . . Signed: _____________ Robert A. Kehoe, M. I>. Samples Collected: R-2-k Samples Received: 6-5 4 8 ^ Samples Reported: -io-Uo 0004134 N6867.01