CHILDHOOD LEAD POISONING-CONFERENCE KEYNOTE Agnes Latimer, M.D.

The lead treatment of cancer.

This use of lead is quite unique as it forma LIA22240 te Mr.

Joseph Lead Co.

MacGregor Lead Co.

This use of lead is quite unique as it forma LIA22240 te Mr.

Of more importance, however, is the fact that the significance of the exposure to, and absorption of, lead in inorganic form is much more readily established by the determination of the lead content of the blood of exposed persons, than by that of the urine.

igment: Ked Lead 100?

FILE NAME Threshold Limit Values TLV DATE 1997 DOC TLV002 DOCUMENT DESCRIPTION Medical Journal Letter to the Editor - How Threshold Limits for Lead Were Established in the 1950s AMERICAN JOURNAL OF INDUSTRIAL MEDICINE 702-703 1997 LETTER TO THE EDITOR How Threshold Limits for Lead Were Established in the 1950s KEY WORDS lead Lead Industries Association American Standards American Industrial Hygiene Association TLN'TLsN's standard setting Association In 1955 Manfied Bowditch Health and Salety Director of the Lead Industries Association LIA arranged to be named Chairman of the group within the American Stan- dards Association ASA concerned with occupational expo- sure limits for lead This was called the Subcommittee on Lead of the Committee on Toxie Dusts and Gases of the ASA The subcommittee recommended sarsing the longaccepted standard of 0.15 mg m to lead and lead compounds in an to 0.2 more for lead sulfide and it was expected that the parent committee would accept the recommendation LIA 1956 The ASA was also useful to the lead industry in setting a sort of baby threshold mit LIA 1956 The minal proposal of the New York City Health Department to requite a poison label on all paints containing any lead whatsoever was ultimately modshed though the establishment at our instance sic of a committee of the American Standards Association which evolved a standard permitting up to one percent of lead in paints used on surfaces which might be chewed by children The LIA report went on to add that " The poison wording was also modified Di John Foulger of DuPont one of the members of the ASA subcommittee on lead later explamed the rationale for the recommendation that up to 1 percent of lead would be safe in paints chewed by mfant children It was based on information from the paint industry that one gallon of paint would cover 500 sq ft and on the assumption that only one coating of paint would be applied to the surface chewed The committee's assumptions were not limited to strictly seien- tific matters W concluded that a child would take in one Correspondence to Barry Castleman 2412 Pickwick Road Baltimore MD 21207-6631 mail bcastle hop lib md us Accepted 6 June 1997 milligram of lead if ate about one and a half to two square inches of pant It was considered also that surely the parent would notice that amount of chewing Foulger 1958 In 1957.

Lead Industries As** utn*n.

Lead (Reprint froo "Chemical Engineering*) TV.)

Introductory Comments Ideally, the metallic lead or lead compounds emitted from the vents, open operations and stacks of industrial plants in which various lead-containing materials are handled; employed as raw materials; or fabricated into finished products; should be captured and confined entirely within the premises of the plant.

Lead-ln-oll sales vlll be up substan tially because of the removal of restrictions <m the use of dry vhlte lead In producing lead-ln-oll.

more standard shipping containers into a tank of gasoline, and to thoroughly mix that quantity of lead tetraethyl into such a volume of gasoline as to provide a final and uniform concentration of lead tetraethyl not in excess of that specified above* I4..

Lead - Kehoe The Plasma-cell Partition of Blood Lead - Bambach, Kehoe and Logan P.S.