Document e133YBGodwkyJpjykKx1zeVyM

Blind copies: Dr. & F. Kirby Mr.'v/. R. Perdue. Jr (2) <i Mr. F. P. Vvarne September- 4 * "--1959. Dr. John D. Porterfield . Acting Surgeon General Public Health Service Department of Health, Education and Welfare Washington 25 D, 0. ; ; ; - Dear Dr. Porterfields Thank you for your letter of August 21, 1959 and the enclosed report of the Ad Hoc Committee on Tetraethyl Lead, . Following 'receipt of this report Ethyl Corpora tion has notified its domestic customers that they may use con centrations of tetraethyl lead in motor fuel up to four -cubic centimeters per gallon if they so desire. Bearing in raind that the present average TED concentration in gasoline is approximately two cubic centimeters per gallon we do not believe that" any large or sudden increase in TSL concentration will result from our action. However, you m y be sure that ws will continue to ob serve and study the situation carefully as we have-for the past thirty-five years, We also assure you that the recommendations of the Ad Hoc Committee will receive constant and careful con sideration. With respect to the third of these recommendations -- namely, that the Public Health Service in collaboration with manu facturers of TSL, the petroleum industry and other organisations conduct studies to provide more definite data on levels and trends of atmospheric contamination in selected areas -- we will be happy to consult with you at.your convenience on devising and carrying out appropriate studies*. We appreciate very much the manner in which you have treated our request for consideration of higher lead concen trations and wish to assure you that we will continue to cooperate in every way with the Rubilo Health Service In protecting the pub lic from any possible hazard in the manufacture, distribution and use of antiknock compounds containing tetraethyl lead. Tours very truly, 000827a