Control subjects were asked leading questions as to their having been employed in ind\*stries known to in volve contact with lead.

6, STUDIES ON THE ABSORPTION OF LEAD FROM ETHYL GASOLINE by Robt.

Her average daily excretion of lead was found to be 2,07 mgs.

Both of us have written extensively on the history of public and occupational health, including poisoning from tetraethyl lead as a public health issue in the 1920s. 3.

FILE NAME: National Safety Council (NSC) DATE: 1929 Sept DOC#: NSC433 DOCUMENT DESCRIPTION: NSC Health Practices Pamphlet - Gases and Vapors ( ' ' T Gases and Vapors Health Practices Pamphlet N o . 9 Published by National Safety Council 108 East Ohio Street, Chicago This pamphlet is a compilation o f experience.

In the United try have been conducted along States, on the other hand, a major essentially similar Lines-the work of part of what has been accomplished the United States Public Health for industrial safety and sanitation Service on tetraethyl lead, and the has been accomplished by the initiative work on spray coating by the Pennsyl- of broad-minded employers of labor. vania State Bureau of Labor and by This benzol study is a new demonstra- the Committee on Spray Coating of tion of the readiness of industrial the National Safety Council.

TRENCHING AND EXCAVATION 1926,651 Tbla ?

The result was that coal dust, which is usually considered a harmless dust, so accumulated in the lunp that it accentuated the preexisting silicosis sufficiently to lead to death.-- E.

A STUDY OF THE POSSI BLE PUBLI C HEALTH HAZARDS ARI SI NG FROMTHE USE OF TETRAETHYL LEAD I N THE AUTOMOBI LE by FRED.

The bronchioles are the branching divisions of larger tubes called bronchi which lead to still larger tubes that also unite and open into the trachea or windpipe, which in turn opens into the larynx or voice box enclosing the vocal cords.

X suppose you would agree generally with this; we all Know the danger of lead poisoning, and that a certain amount of lead is necessary to produce lead poisoning* But if you have; an infinitesimal amount of lead in a river, that is not dangerous.

Hazards A ssociated with the manufacture of T e tra e th y l Lead and Leaded Gasoline.

FILE NAME: General Electric (GE) DATE: 1923-1934 DOC#: GE036 DOCUMENT DESCRIPTION: Dr.

Tetraethyl-, tetiraisopropyl-, tetrabutyl-, and tetramethyl- derivatives obtained.