As a part of the lead studies, the hygienic significance of the distribution and use of gasoline containing tetraethyl lead as a motor fuel has -,been tinder investigation.

As a part of the lead studies, the hygienic significance of the distribution and use of gasoline containing tetraethyl lead as a motor fuel has-been under investigation.

The effects of this basic information are three-fold; it furnishes a practical and useful estimate of the gross influence of present day methods in handling, processing and distributing food materials upon the level of human lead absorption and excretion outside the lead trades, and thereby provides a basis for the recognition of future alterations in the American environment with respect to lead exposure; it sets up accurate and reproducible standards for the differentiation of "normal" persons from abnormal, with respect to lead intake, absorption and excretion thereby giving material aid in the diagnosis of lead intoxication; it establishes a tentative but immediatel; KZ 0u;*i <1 4 *,,-v **1 4 3 useful criterion for the definition of dangerous occupational conditions as to lead exposure, and so develops Into a means for the prevention of Industrial lead poisonings As a part of the lead studies the hygienic significance of the distilbutlon and use of gasoline containing tetraethyl lead as a motor fuel, has been under investigation* In fact, the necessity of setting up standards for the interpretation of this problem in public and occupational health has been an important factor in determining the scope of the entire study* At present, this laboratory is the only source of new Information on this subject, and its conclusions have a viide influence in this country and abroad in shaping the point of view and the activities, with respect to this question, of those who are responsible for industrial and public hygiene.

Perhaps.they should try lead.

I might point out that this problem, in one aspect of another, has been recognised by us for more than twenty-five years, as the pri mary problem of the entire tetraethyl lead industry.

Concerning the Hygienic Aspects of Lead in the Human Environment" 80 copies Harben Lectures - 1960 8 copies - "Methods for Determing Lead in Air and in Biological Materials", by American Public Health Association, inc. 1955 97 copies "industrial Lead Poisoning" by R.A.K. 42 copies "Public Health Aspects of Increasing Tetraethyl Lead Content in Motor Fuel" by HEW 23 copies "Guide to the Appraisal and Control of Air Pollution" - American Public Health Assoc. - 2 booklets "Harben Lectures" hardback 8 copies (defective) #111 - Ethyl and Octel Corp.

Chaaplin, Director of our Public Bo 1stIons Departasnt, who have had considerable experience In our Corporation's policies regarding the subjeot of pub licity of our product, tetraethyl lead.

We are not yet prepared to report on the possible exposure KE 0022384 -3- which may come about in tanks which have been used for blending and storing leaded gasoline, exposure which may conceivably arise from the slow decomposition of tetraethyl lead in the mixed gasoline or from the frequent carry-over of small amounts of sludge entrained v/ith the Ethyl Fluid.

We are not yet prepared to report on the possible exposure 0022384 3- - which may come about in tanks which have been used for blending and storing leaded gasoline, exposure which may conceivably arise from the slow decomposition of tetraethyl lead in the mixed gasoline or from the frequent carry-over of small amounts of sludge entrained v/ith the Ethyl Fluid.

Physical examination at this time disclosed no apparent illness as a result of handling tetraethyl lead.

We suspect that such sludge will continue.to contain both tetraethyl lead and its breakdown products for many years when buried in this way, and we propose to do corings of one or two of the older burial grounds to see if we can form any picture.'

Bynum Turner Ethyl Corporation 100 Park Avenue, New York 17, New York Dear Bynum; I have finally finished the memorandum or report on the evidence relating to the fourth miltiliter of tetraethyl lead, for the ublic Health Service and its Special Committee, and it will be on its way as soon as it can be multilithed.

The composition of the present ETEYL Fluid containing .75 theories of bromine is as follows on a weight percentage basis:- Tetraethyl Lead * Ethylene Dibromide Ethylene Dichloride Kerosene and impurities Dye 61.69 26.88 7.55 3 .76 .12 The specific gravity at 20 C. is 1.6475.

ARRANGE "TO BE PRESENT STOP JF NOTV" "f 5 PLEASE SUGGEST CAPABLE' EXPERT ON TETRAETHYL LEAD' POISON!

A uniformly favourable impression of our company1s willingness to inform the authorities in advance of the proposed increase in tetraethyl lead seemed to be the feeling of the various men.