Lead Toxicity and Nutritional Deficiencies O.A.

Lead 249.

file:///P|/Depositions/Taylor-Henry-M-012497VOL1.txt HENRY M.

file:///P|/Depositions/Taylor-Henry-M-012497VOL1.txt HENRY M.

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Tetraethyl lead 0.075 mg/m3 TWA, skin Lowered TLV from 0.1 mg/m3 Tetramethyllead 0.075 mg/m3 TWA skin Lowered TLV from 0.15.

We might add th a t our tank tru ck s a re placarded by h arin g an enamelled sig n approximately 15" x 24" displayed oa each side of ths t r a i l e r , bearing the following warning: WASHING .CONTAINS TETRAETHYL LEAD: CONTENTS POISONOUS.

These are "Heoprene", the synthetic rubber developed by the duPont Company and "Thiokol" * It occurs to me that it might be well to investigate these substances for use in rubber protective equipment in connection with the handling of tetraethyl lead.

FILE NAME: Owens Illinois Library (OWL) DATE: 1930 DOC#: OWL007 DOCUMENT DESCRIPTION: Abstracts & Index from The Journal of Industrial Hygiene and Toxicology the journal of INDUSTRIAL HYGIENE EDITORS DAVID L.

Total lead liberated to atmosphere about 200 lbs. per day in 1950.

Joseph Lead Co.

Joseph Lead Co.

' RespLratory system (pulmonary edema); by inhalation of vapors DUP 0901193 "Semeoan" mercurial seed disinfectants Sulfur dioxide Systemic and 3kin (vesicant); by contact or inhalation of dust Respiratory system (hazardous to asthmatics); by inhalation "Teflon", combustion products Respiratory system (pulmonary edema) by inhalation of fumes or amoke (welding hazard) o Tetraethyl lead Syotcmic; by skin contact or J\ o Inhalation of vapors Ci D I.

Even though a dust is classified as harmless, amounts above the TLV can lead to trouble by causing a pneumoconiosis, mechanically instating the walls of the respiratory system, or interfering with ordinary lung processes.