ri hB0^ 850 FOUNDATION This nws-l'*tt'*r ts issued monthly to member t companies and trade associations affiliated with Air Hyciene Foundation.

Lead By O.

H ow ever, the no isio n insisted that tests y . e be made for tetraethyl lead, a com m on in gredient in com m ercial gasoline. . .

N y' Lead Ab s o r p t io n , Lead E xcr e t io n and Lead P o iso n in g by R o b e r t A.

TABLE OF CONTENTS AND CHECK LIST GENERAL INFORMATION SAFETY GUIDE SUBJECTS ACETIC ACID ACETONE ALUMINA ALUMINUM CHLORIDE AMMONIA ARSINE ASBESTOS BENZENE CALCIUM CHLORIDE CALCIUM OXIDE CARBON, ACTIVATED CARBON DIOXIDE CARBON DISULFIDE CARBON MONOXIDE CARBON TETRACHLORIDE CHLORINE CRESOL CYCLOHEXANE DIATOMACEOUS EARTH ETHYLENE DICHLORIDE ETHYL MERCAPTAN FURFURAL HYDROCHLORIC ACID HYDROFLUORIC ACID HYDROGEN CHLORIDE HYDROGEN FLUORIDE HYDROGEN SULFIDE LEAD MERCURY METHYL ALCOHOL METHYL CELLOSOLVE OLEIC ACID PETROLEUM HYDROCARBONS PHENOL SODIUM HYDROXIDE STEARIC ACID SULFUR DIOXIDE SULFURIC ACID TETRAETHYL LEAD TETRAMETHYL LEAD TOLUENE TRI-CRESYL PHOSPHATE, ORTHO XYLENES REFERENCES 1-73 && 0. * o' REFERENCES Sax, "Dangerous Properties of Industrial Materials," Third Edition, Reinhold Book Corporation.

How much lead is in the air?

Genotoxic effects of lead and data reported in regard to possible carcinogenic effects of lead are then reviewed, followed by discussion of effects of lead on the immune system and, lastly, an overview of lead effects on other organ systems.

"Tetraethyl Lead Boosts Octane for PT Boats and Carrier Aircraft." 1941 "Lead-Telluride Space Power Unit part of Atom Era." (1959) Trade-offs in materials are a fact of life in a technological society.

The principal ore of lead is galena (lead sulfide, PbS) although cerussite (lead carbonate, PbOOj), anglesite (lead sulfate, PbSOA) and pyromorphite (PbgCLf104)5) are common ores.

This lead comes bum the gas additive tetraethyl lead.

These were the discovery of tetraethyl lead as an antiknock agent in 1922, a cell for producing sodium and chlorine from molten sodium chloride in 1924 and the extraction of bromine from seawater in 1934.

"Tetraethyl Lead Boosts Octane for PT Boats and Carrier Aircraft." 1941 "Lead-Telluride Space Power Unit part of Atom Era." (1959) Trade-offs in materials are a fact of life in a technological society.

Those which have been obtained indicate clearly an increased lead absorption and there is a trend toward correlation between time spent in the tanks and lead content of urine.

In addition to use for batteries, re cycled lead and lead alloys are refined for use in tetraethyl lead gasoline addi tives, and for ammunition, caulking lead, cable covering, foil, die castings and lead type.

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