CHAPTER 3 THE INHALATION OF PARTICULATE LEAD BY HEALTHY HUMAN SUBJECTS The experiments outlined in this chapter were performed to determine the maximum concentration of atmospheric respirable inorganic lead particles that can be inhaled continuously throughout a lifetime by healthy persons without there being a demonstrably progressive accumu lation of lead in their bodily tissues.

Dr * h'^riger, Departmne of -Presentvs i-edioine:, Jefferson i-iedical College, 1025 Walnut Street, Philadelphia 7 , Pennsylvania

,,>v.gTHL GASOLINE CORPORATION "'` NEW YORK, ,May A, 1 9 K .

; Mr.

ILq&iSiiiL CLINTON H.

TH E JOURNAL OF INDUSTRIAL HYGIENE AND TOXICOLOGY HARVARD SCHOOL OF PUBLIC H EALTH cM an agin g Editors Ph il ip Dr in k er Ma r g a r et S.

Im-: Scho o l o f Pu b lic He alth 55 Van Dyke S t . , Bo s t o n , M a s s ..

Ju ly 26, 19^6 Dr.

Et h y l Ga s o l i n e Co r p o r a t i o n Ch r y s l e r B u i l d i n g *105 Le x i n g t o n Av e n u e S AFETY DIVISION R o b e r t A.

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SAVANNAH.

involve;d>\inBeeloivt/heisr athelistatnkofcleemapnlionygeeospoefraWtioanltseroNr utgheent pouring of the concrete or in some instances as noted both operati ons.

MIDLAND PMPLYBR?

fe. ruary 1 1X6 k r . b.

April 2, 19kj> Mr* Carl H.