The weight of the bio d specimen was 13*6 grams and it contained 0.055 mg. of load per 100 grams, by the dithisone method* This concentration of lead in the blood Is. soon only with some exposure to lead* It is less than that usually seen in men with lead colic.

Nevertheless, it is nov fairly generally accepted that there is a limit of lead expo sure above vhich the danger of lead poisoning becomes progressively greater among a plant population, and belov vhich cases of poisoning vill either not occur at all or vill be of an essentially harmless type.

Forbes s u b j e c t Alleged Lead Poisoning Case a d d r e s s New York a d d r e s s Philadelphia DATE March 17, 1947 Attached herewith please find the file con cerning an alleged lead poisoning case forwarded by Mr.

Forbes su bjec t Alleged Lead Poisoning Case a ddr ess New York a ddr ess Philadelphia dat e March 17, 19-47 Attached herewith please find the file con- ' cerning an alleged lead poisoning case forwarded by Mr.

Fortunately, evidence has accumulated to demonstrate the existence of a relationship betveen quantity of lead absorption and the occurrence of lead intoxication* Various expressions have been given to this relationship, and it can not be said that there is complete agreement among authorities as to the safe limits of occupational lead absorption* nevertheless, it is nov fairly generally accepted that there is a limit of lead expo sure above vhleh the danger of lead poisoning becomes progressively greater among a plant population, and belov vhieh cases of poisoning vill either not occur at all or vlll be of an essentially hamless type.

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Re sa*d that lead poisoning s p b 3 to be more dramatic to the public than the toxicity of :.

Re sa*d that lead poisoning s p b 3 to be more dramatic to the public than the toxicity of :.

Oir e f fo r ts to have provided throughout the country adequatelabor atory f a c i l i t i e s to make r e lia b le lead d e to m in a tic r j to aid in accurate diag nosis o f lead poisoning are bearing f r u i t , host rece n tly t h is has been n otice able in Cleveland and S a lt Lake C it y .

Lillians was in the hospital with an alleged case of lead poisoning.

I think they will find it useful to employ analytical methods that will differentiate between inor ganic lead compounds and organic, since the lead hazards are likely to be quite different if and when appreciable quantities of tetraethyl lead are available in these materials.

They, in common with a number of otherswriters on the subject of lead poisoning, have no prpper appreciation of the quantitative aspects of exposure, dosage absorption, body burden and excretion.

results in the development- of a "method f or lead analysis ha*ro already been- obtained

National Lead Co. do do do do do do do do Northwest Lead Co.

De partment ofHealth, Education, and Welfare, or desigiMte"Lead" means i^ETailic lead, all inor ganic lead competmds. and organic lead soaps.