Lead Industries Association, Inc. 292 Madison Avenue New York.

Lead Industries Association, Inc. 292 Madison Avenue New York.

FOR IMMEDIATE R'RT.F.ARF NEW YORK, OCTOBER l6, 1963 - National Lead Company has named Kenneth C.

/ One result of your work is that I shall commence to use blood lead estimations on a wider scale.

Htssfogip thereunto duly authorized and it corporate seal to be hereunto affixed and Attested by its SECRETARY > this da7 o ' 1965 * NATIONAL LEAD COMPANY ATTEST: BY: /y s e c r e t a r y BY: fa Hu A, n A ytcs!

LEAD INDUSTRIES ASSOCIATION, INC. 292 MADISON AVENUE NEW YORK, N.

Kehoe: Thank you very much for your letter of March 28, and for the various reprints on lead and the book of the Harben Lectures, i960 on "The Metabolism of Lead in Man in Health and Disease," which arrived a week later.

Red lead has proved itself for a wide variety of exposures.

Infra-red irradiation effect on skin pigmentation Insecticides microchemical detection Insects necrotic bite of brown recluse spider Lead analytical methods for determination atmospheric concentration determination self-powered portable sampler epidemiology of disease associated with importance and uses of metabolism under abnormal conditions nature of in exhaust gases natural occurrence normal metabolism 498 458 476 476 454 444 443 425 491 487 431 504 425 451 502 447 466 515 501 469 461 468 498 462 467 Lead poisoning clinical inorganic in children problems in recognition 470 471 472 Lead tetraethyl absorption and pathology determination in air hygiene and medical control procedures intoxication 465 501 463 464 Lead tetramethyl absorption and pathology determination in air 465 501 Leukemia complicated by fungus infection 444 Light abnormal reactions of man to 445 kasala), mechanical properties in men over 60 particle deposition by diffusion 438 483 Magnetic fields effect on organism 493 Microchemical detection of airborne toxic agents 502 New England history and problems of occupational health 517 Occupational health history and problems in New England 517.

Ill Oil t ii 1h All S00 lbs* vm l t.s, . on# del Ivery 1 ton o k a delivery iOOe1 31.40 30.90 30.15 50s wMae 32.55 32.05 31.30 25s mmmmrnm 34.80 34.30 33.55 Netail Consumer Prices - Zones i. 2, and 6 100a 50a 25a lie lead In oil 33.25 34.50 37.00 Refer to yur Where-To-Ruy-11 page for White Lead in Oil in parbeas* eller than 25 pounds, and also for your requiraaants of Hey Sad lead and Red Lead in Oil, ?

The result is little more than nothing, beyond the well-known figure for the tolerable concentration of lead (without reference to any compound, or dimensions of particle, but presumably the worst compound, exclusive of the lead alkyls, and the most dangerous degree of dispersion).

The lead concentration pf another 5 of the blood samples are at the very upper limit above which symptoms may occur, and the lead concentration in the remaining 6 are within a "safe" area but, none the less, as a group would suggest increased lead absorption.

Levadie: I do not believe that there is satisfactory evidence on which to sot a TLV for lead chromate.

This fact does c re a te problem s w hen we a re trying to evaluate the effect of am bient lead on m an w hen we m e a su re blood leads

It should be well known that there is to be no drinking or eating, "to 'these lead areas