Memorandum detailing procedures for asbestos wipe sampling in Lower Manhattan and estimating associated cancer risks from dust exposure.
NYC-WTC_000140259–000140277Folder label: “EPA Cate Jenkins”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
UNITED STATES ENVIRONMENTAL PROTECTDN AGENCY WASHINGTON. D.C. 20460
OFFICE OF SOLID WASTE AND EMERGBICY RESPONSE
MEMORANDUM
DATE: December 19,2001
SUBJECT: Wipe sampling for asbestos in Lower Manhattan Projection of airborne levels from settled WTC dusts Estimation of Increased cancer risks based on various WTC dust exposure scenarios
FROM: Cate Jenkins, Ph.D. Waste Identification Branch (Mail Code 5304 W) Hazardous Waste Identification Division
TO: Affected Parties and Responsible Officials
The following memorandum provides information on taking wipe samples of settled dusts inside buildings in Lower Manhattan that resulted from the collapse of the World Trade Center (WTC). Studies are discussed which correlate the amount of asbestos that will become airborne (resuspended) because of activities such as sweeping, athletic activities, etc. Information is provided on the cumulative exposures (total doses) found by the Agency for Toxic Substances and Disease Registry (ATSDR) to be associated with asbestts-related health effects, and examples are given how tQiuse this information to calculate doses of asbestos from the WTC disaster. Finally, a brief section explains the different methods for analyzing and reporting asbestos levels.
The an?’? ses, projections, and opinions in this memorandum represent my own professional judgement and are not intended to be construed as any official position or recommendation by the U.S. Environmental Protection Agency. This memorandum is not inunded as any final risk assessment risks from continued and past exposures to asbestos, and has not been reviewed by EPA. The data is too incomplete at this time for any complete projection of risks, and there are too many methods available for perfmning such projections. My attempt was intended only as a point of discussion prior to more rigorous assessments.
NYC-WTC_000140259
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EPA memorandum on wipe sampling methods for asbestos in Lower Manhattan buildings, resuspension projections, and cancer risk estimates from WTC dust exposure.
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EPA memorandum detailing plans for asbestos wipe sampling, projecting airborne dust levels, and estimating increased cancer risks from WTC dust exposure.
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