McDonald/Calvert City ( ) Take Action ( ) For Your Approval j ) For Your Comments ( ) As Requested EXPERIMENTS ON A-728 PRODUCT { ) For Your Info ( ) Discuss With Me { ) File ( ) Note & Return We show below the results of laboratory and plant tests leading to reduction of residual VCM in A-728.

Sc-like- is a leading scientist in industrial-related disease*;:.

This fact, along with the recent decision in the GAF case (see attached legal opinion), leads me to reappraise the former recommendation.

Incidentally, this was the only female who had been included in the study, and she was added in order to determine for the record, whether or not the response of the female of the human species differed in any significant manner from the male in response to the absorption of lead.

We hope that the Federal government and other states will follow California's lead in adopting effective legislation which is also practical and enforceable.

This proposal did not lead to any action.

Mason reviewed the history of the recent events leading . up to our decision to have the meeting.

Technician/Shift Monitoring Analyst 1.1 ND 0.6, ND, 0.7, ND, 0.7, 103.5, 3.0, 1.8, 2.4, 0.6 - ND ND ND, 0.6, ND, 0.2, 0.3 11.4, 0.4, 0.7 1 ' BOILER HOUSE Boiler Lead Operator 0.6 1 \J Boiler Operator * ND, 0.1, ND, ND . ' .

In this health area, the module leads OSHA.

Un fortunately', in a number of other instances where chemicals were found to cause cancer In animals, the warning was not applied promptly and avoidable tragedies --suiter) m-141 A key aim ofcarcinogen bioessay is to assess the carcinogenic risk of chemicals early in the stage of technical development It is wasteful and, indeed, imprudent to conduct carcinogen bioassays on any chemical late in the development and production stage* when a finding of adverse effects would make futile all of the previous work leading to possible commercial use.

April 15, 1971 Appropriation 36-9356 SPECIFICATIONS FOR OPERATING SERVICES CONTROL CENTER BUIIDING 828 HUMBLE OIL & REFINING COMPANY BAYTOWN, TEXAS TABLE OF CONTENTS 1.

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CERTAIN TOIIC CHEMICAIiS OECD Member countries have agreed to control the manufacture and trade of industrial chemicals known as Polyohlorinated Biphenyls (PCBa)*, the use of which may lead to the contamination of the environment.

ENVIRONMENTAL RESEARCH 14, 68 "72 (1977) Chromosomal Damage in Men Occupationally Exposed to Vinyl Chloride Monomer and Other Chemicals Clark W.

No other type of asbestos is mined in Canada Repeated exposure to asbestos dust leads to a number of diseases Asbestosis is char- acterized by pulmonary fibrosis causing a restrictive defect with reduced vital capacity and defective gas transfer often leading to death from respiratory failure An increased incidence of carcinoma of the bronchus is as- sociated with asbestosis 1 An increased incidence of primary malignant tumors of the pleura and peritoneum is also associated with exposure to asbestos dust 1 The level of asbestos exposure necessary to produce such changes is not yet known Although it is generally recognized that exposure to asbestos is dangerous the potential of chrysotile as a carcinogen is not yet clear A fairly common radiographic abnormality in per- sons exposed to asbestos is the presence of AMERICAN REVIEW OF RESPIRATORY DISEASE VOLUME 103 1971 821 822 PAUL CHAMPION / / / / / Fig 1.