POLK: Leading. 7 Q.

Enel. ~ 4 r 2 mentioned in letter (chapter and editorial) Occupational Lead Exposure and Lead Poisoning Value of calcium disodium ethylenediaminetetraacetate and B.A.L. in therapy of lead poisoning.

Two blood sam p les analyzed for lead both gave values of 413 mg % lead.

There is no level of the concentration of lead in the skeleton that correlates with illness due to lead.

Check on fraction of lead remaining in the body.

Joseph Lead Co.

Thus he feels there is no evidence for lead.

Lead determinations as done by B.

One of these problems was that of the hazards of the usage of lead-cntalning products within industry and the community.

(Pig Lead Sales) 2.

It has not been established that there is any risk from the current lead levels in the atmos phere nor does it now appear that lead in the atmosphere is highest in Philadelphia. 4.

Although the cause of the peril--lead-based apartment paint--was outlawed here' a decade ago, and the most re cent coats of paint in deteri orating apartments do .not contain dangerous levels of lead, falling paint and plaster chips' in such apartments are still poisonous because the lead content from coats of older paint usually form V sizable part of such chips.

Present evidence indicates that the lead content of the as&ieat atmosphere of apparently characteristic Aaerican cities is incapable of causing lead poisoning in children or adults.

At that time we may find a trace of hydrocarbon, but no demonstrable elevation of the lead content over the expected amount of lead (up to 0.03 mgm. per liter).

MacGregor Lead Co.