Another advantage cited by tba scientists is the fact that rudlngt reflect e ratio of lead content In blood cells, whereas the mat elaborate tasting requires measurement of the amount of lead.

LEAD POISONING 9:10 Marjorie J.

We propose to issue lead-free formulas for Chicago, but those :"or the rest of the country still containing lead until wo can resolve our problem.

For one example, we have never seen a case of lead poisoning, at the onset of the illness, in a person whose blood contained less than 80 micrograms of lead per 100 grams (whole blood).

Joseph Lead Company.

It will be a decade, at least, I should say, before the information concerning the lead content of hair, in its relation to the recognition of hazardous exposure to lead, and to the diagnosis and therapy of lead poisoning, can compete with the presently available knowledge of the significance of lead in the blood (and urine).

Lead or Tc3ele-..'

The health hazards associated with lead/chromate

Therefore samples of urine obtained from normal persons without unusual exposure to lead may show lead concentrations wall above the limits commonly regarded as normal for such persons.

Red lead.................. d o ....

Galvanized coatings contain lead.

Thi3 invention relates to a process of stablising lead tetraethyl and anti-knock mixtures containing the same* . ... . . ..... ......

I have looked at some other cities' WQR/CCR's who have made efforts to fully inform and educate the public on lead, and the intention of the Lead and Copper Rule.

In conclusion your reference to the "normal blood lead level" raises the problem that to many persons lead poisoning cun be diagnosed solely from a blood lead level, whereas lead poisoning is a clinical diagnosis to which knowledge of the blood lead level can make a significant and useful contribu tion.

One found a certain reluctance amongst most British physicians to admit that lead poison in any form existed, and parti darly that such could be caused by the lead additives to fuels of any kind.