Dear Sir: The question of medical control of lead workers has arisen again and we would appreciate your opinion concerning the safe . limits of lead absorption, as determined by urinary lead, blood lead, basophilic stippling, or coproporphyrin excretion, for routine movement of workmen from a lead hazard area. 1 We would also appreciate an outline of a medical program suitable for lead workers.

Lead and Zinc Markets . . . ...........................................

Copy far future bulletins la balng prepared and will cover abaat lead ahomr pane, lead vaot stack flaahlnga id lead In chadcal laboratory pluabing ayeiea*.

Copy far future bulletins la balng prepared and will cover abaat lead ahomr pane, lead vaot stack flaahlnga id lead In chadcal laboratory pluabing ayeiea*.

The short range program to cover all interior products with primary concentration on replacing the lead pigmentation first and long range outlook on replacing the lead driers.

I would not wish to relate the lead in the air to gasoline consumption, either, since it is not possible, at this time, to determine the contribution made to the lead in the air by the exhaust of automobiles.

Routine blood examinations on the,men, checked in this laboratory, fulled to Indicate the existence of significant lead exposure*' Discussion of -Gas , The ayinpboriatology at the onset, and the physical findings at the initial examination were not convincing evidence of lead intoxication* In th absence of blood changes, end with the acute onset and the nouro- logical findings, it was necessary to postulate the absorption of considerable quantities of..lead,.

Usually when the blood lead exceeds 0.15 mgs.

LEAD INDUSTRIES ASSOCIATION 60 SAST 41NB STRKCT o N*V YORK 17, M.

LEAD INDUSTRIES ASSOCIATION 60 SAST 41NB STRKCT o N*V YORK 17, M.

Oaaaow did adait that tbs rad lead fonauls 116 was not as objectionable aa the straight lead as tbs saount of rad lead por gallon was greatly reduoed and this would reduce the health hazard.

In ay view it Is a Major fal lacy to talk of shortages In lead and sine.

Oaaaow did adait that tbs rad lead fonauls 116 was not as objectionable aa the straight lead as tbs saount of rad lead por gallon was greatly reduoed and this would reduce the health hazard.

My guess is that a certain amount of finely divided lead ??

Incidentally you will find adequate discussion of the matter in ^Occupational Lead Exposure and Lead Poisoning,'* a report prepared by the Committee on Lead Poisoning of the Industrial Hygiene Association.