April 1952 Total Allergy Asbestosis (Dust-asbestos) Bronchitis (Acids) Burns Carbon monoxide poisoning Chlorine gas poisoning Dermatitis Hernia Lead poisoning Lymphangitis Miscellaneous Miscellaneous (Caisson disease) Nitroglycerin poisoning Pneumoconiosis Poisoning (Lead and compounds) Silicosis Silicosis (Dust-Free Silica) Silico- Tuberculosis Skin Infection Skin Irritation Upper respiratory infections Total 1 1 87* 1 1 -- 91 16** 19 2 19 15 1 10 -- -- 18 55 66 1 1 22 11 11 35 157 2 11 1l 22 19 11 6 1 11 1 11 55 44 22 62 226 1 .

Unleaded gasoline may contain some lead but never more than 0.013 g/L (3).

May 1952 May April 1952 1952 April 1952 Total Allergy Asbestosis (Dust-asbestos) Bronchitis (Acids) Burns Carbon monoxide poisoning Chlorine gas poisoning Dermatitis Hernia Lead poisoning Lymphangitis Miscellaneous Miscellaneous (Caisson disease) Nitroglycerin poisoning Pneumoconiosis Poisoning (Lead and compounds) Silicosis Silicosis (Dust-Free Silica) Silicon Tuberculosis Skin Infection Skin Irritation Upper respiratory infections 1 1 87* 1 1 16** 19 2 19 15 1 10 66 1 1 22 11 11 35 157 2 11 11 22 19 11 6 1 11 1 11 55 44 22 Total 91 18 55 62 22 6 1.

-metals and compounds, Friction, tension and repeated motion, Infection, Lead and compounds, and Synthetic resins and chemicals caused one each; Phenol and phenoliccompounds,. and Poisonous plants caused two each; Alkalies caused three; Chromium and compounds.

May 1952 May April 1952 1952 April 1952 Total Allergy Asbestosis (Dust-asbestos) Bronchitis (Acids) Burns Carbon monoxide poisoning Chlorine gas poisoning Dermatitis Hernia Lead poisoning Lymphangitis Miscellaneous Miscellaneous (Caisson disease) Nitroglycerin poisoning Pneumoconiosis Poisoning (Lead and compounds) Silicosis Silicosis (Dust-Free Silica) Silicon Tuberculosis Skin Infection Skin Irritation Upper respiratory infections 1 1 87* 1 1 16** 19 2 19 15 1 10 66 1 1 22 11 11 35 157 2 11 11 22 19 11 6 1 11 1 11 55 44 22 Total 91 18 55 62 22 6 1.

-metals and compounds, Friction, tension and repeated motion, Infection, Lead and compounds, and Synthetic resins and chemicals caused one each; Phenol and phenoliccompounds,. and Poisonous plants caused two each; Alkalies caused three; Chromium and compounds.

-metals and compounds, Friction, tension and repeated motion, Infection, Lead and compounds, and Synthetic resins and chemicals caused one each; Phenol and phenoliccompounds,. and Poisonous plants caused two each; Alkalies caused three; Chromium and compounds.

The use of lead in regular gasoline has become more universally adopted.

/lO cm. as the atmospheric concentration of 1 BRITISH JOURNAL OF INDUSTRIAL MEDICINE INDL lead in which engineers and chemists might work. of a hazard with a value or a zone of values is By prescribing a maximum intake of lead, however, desirable to supplement the picture already in his there is the implication that the harder a man works mind of one or more features of the effects of the in the atmosphere containing lead, the shorter time compounds.

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/lO cm. as the atmospheric concentration oi 1 BRITISH JOURNAL OF INDUSTRIAL MEDICINE lead in which engineers and chemists might work. of a hazard with a value or a zone of values is By prescribing a maximum intake of lead, however, desirable to supplement the picture already in his there is the implication that the harder a man works mind of one or more features of the effects of the in the atmosphere containing lead, the shorter time compounds.

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30 I 02 30 Industrial Hygiene Digest INDUSTRIAL HEALTH NEWS r LITERATURE ABSTRACTS MEDICAL ENGINEERING CHEMICAL TOXICOLOGICAL LEGAL decisions and treads S3 JULY, 1958 (Vol. 22, No. 7) INDUSTRIAL HYGIENE FOUNDATION MELLON INSTITUTE 4400 FIFTH AVENUE PITTSBURGH 13, PA. >>: 03120456 Industrial Hygiene Foundation assumes no responsibility for statements (n articles abstracted In this Digest or for material from other organizations which may be sent to members from time to time.

By prescribing a m axim um intake of lead, how ever, there is the implication that Um harder a man works in the atmosphere containing lead, the shoner time he should be permitted to do so.