Document Zn1zaNRqo2QXQvVrGVw9EQoz8

May 8, 1950 B r Paul L. Dent, Francis Building, Louisville, Kentucky* L ; Dear Doctor Bent: I forward the results obtained by the analysis of the last series of samples. As usual I have underscored, for emphasis, urinary values above 0.15 mg. per liter and blood values above 0.07 mg. per 100 grams. hen tiie two coincide in the same person they Indicate definite danger, and when they do not coincide they suggest at least some danger. In general the control of the exposure of these men is satisfactory, but individuals vary a bit from the group. The status of C. Jordan is nothing to worry about, but that of Baechler nears significant risk, while that of Kelkelly, if these results are to be trusted, is such that he should be removed from further exposure summarily. This level of lead concentration in the blood is highly dangerous, and may give rise to symptoms at any time* It would be important to know any unusual facts or circumstances of this nan's work or experience otherwise. If there is any doubt as to the validity of these results, additional samples should be obtained at once. Cordially yours, RAK ef Ene . Robert `I. J&ehbe",' IC'D.