Btoppet Tour lnqulrlee regarding hypereueceptlblllty and lead polecolng bar* bom referred to m by Or.

MacGregor Lead Co.

I refer here to the problem of cleaning storage tanks that have contained leaded gasoline.

The cases In question originated In an experimental manufacturing plant for tetraethyl lead, in which a new process was being developed.

0m L16340 ii LEAD INDUSTRIES ASSOCIATION 400 LCOWOTOM AVCNUC f fI. r fNW VOM 17, N.

Byers frankly admitted that he had made some crib paint analyses and found them lead-free I Dr.

Subsequently, it has been learned that these children were using leaded crayon pencils at their school.

A sample to be split must be fresh and utterly devoid of sediment or the splitting will permit unequal amounts of sediment in the two, with almost inevitably iifferent quantities of lead, since the lead precipitates out in part with the phosphates.

It may be of interest to you to have a partial summary of our work on lead, particularly perhaps, as it has concerned itself with specific problems of human health.

*-SaM January 29, 197\ SUBJECT I THE LEAD MATRIX YIARLT REPORTS TO: MEMBERS CT THE LEAD IJOU8TKEES ABSOCIATIC*, UC. 1Attached * a suaeMd-y of General Distribution and Television Reports of 1973The Lead Matrix froa 1966 through - The film la distributed by both Association-Sterling Ellas and the Bureau of Mines.

How ever, they seldom, if ever report elevation of the blood lead or urine lead to toxic levels.

It would appear that his exposure has been sufficient to justify the diagnosis of lead intoxication if the clinical picture suggests that con clusion .

lead and Dutch Boy flatting oil with right colors.

Lead Free Zinc Oxide 15.6?

Actually in the case of lead, the evidence of abnormal concen trations is not very good.