LEAD CONT.

LEAD COKT

National Lead Co, The Bunker Kill Co

Industry Development Committee, Lead Industries Association, Inc.

I have always been curious about the lead in blood concentration following inhalation of alkyl lead.

Ceramic Technical Committee, "Lead in the Ceramic Industries," New York, Lead Industries Association, Inc., 1956.

The effect of single and multiple doses of lead on the blood lead is recorded.

GM's plans to put narrow necks on gas filling pipes on the 1975 models could lead to a reduced use of leaded gas.

The area of great uncertainty with respect to potential adverse effects of lead is, in my mind, the range of lead absorption associated with blood lead levels in the 50 to 80 pg Pb range.

A total balance of lead into the system and lead out. 4.

Draft recommends a "comprehensive study" of potential lead-producing stationary sources to "completely characterize" the size and types of lead particles produced, and also recommends additional studies of lead effects in children and the ,chemistry of lead in the environment

Although this pig mentation is lead free, zinc chromate/ does not rate as well as lead chromate in Acute Oral Toxicity tests (AOT-LD60).

National Lead Co, The Bunker Kill Co

WHY USE LEAD IN GLAZES?

I certainly agree with the decision to make lead poisoning a reportable but have some reservations about your contention that everyone with a blood lead concentration in excess of 80 ug/lOOg blood is lead poisoned.