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Document / 19 pages

EPA memo re: wipe sampling and cancer risk at WTC,

Machine-extracted title · confidence 100%

Memorandum detailing procedures for asbestos wipe sampling in Lower Manhattan and estimating associated cancer risks from dust exposure.

NYC-WTC_000140259–000140277

Folder label: “EPA Cate Jenkins”

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NYC 9/11 Public Portal Document

Tables. CUMULATIVE EXPOSURES OF ASBESTOS ASSOCIATED WITH HEALTH EFFECTS From the ATSDR Toxicological Profile for Asbestos?° including examples of air levels and the amount of time needed to accumulate the dose EQUIVALENT AIR LEVEL (in fibers per milliliter - f/mL) UI

§ 2 and NUMBER OP YEARS EXPOSURE THAT WOULD LEAD TO THIS TOTAL CUMULATIVE EXPOSURE OR DOSE DC O S b UI u.

hp u. UI

I z

hl Cumulative Exposure is given In the number 1 week 3 months 6 months 1 year 2 years 50 years of fibers per milliliter ames the years of exposure (f-yr/mL), n.easured by PCM

Risk Level Is the number of excess cancer cases or cases of other health effects for a given population

king cancer. 0.00035 1 cancer 0.018 0.0014 0.0007 0.00035 0.000175 0.00(M)07 smokers, per million EPA risk levels

0.0035 1 cancer 0.183 0.014 0.007 0.0035 0.00175 0.00007 per 100,000

0.035 1 cancer 1.825 0.14 0.07 0.035 0.0175 0.0007 per 10,000

king cancer, 0.0035 1 cancer 0.183 0.014 0.007 0.0035 0.00175 0.00007 non-smokers, per mIMon EPA risk levels

0.035 1 cancer 1.825 0.14 0.07 0.035 0.0175 0.0007 per 100,000

0.35 1 cancer 18.250 1.4 0.7 0.35 0.175 0.007 per 10,000

mesothelioma, 0.00031 1 cancer 0.01 e 0.00124 0.00062 0.00031 0.000155 0.0000062 EPA risk levels per million

0.0031 ^cancer 0.162 0.0124 0.0062 0.0031 0.00155 0.000062 per 100,000

0.031 1 cancer 1.616 0.124 0.062 0.031 0.0155 0.00062 per 10,000

asbestosis 2.6 no effect 135.571 10.4 5.2 2.6 1.3 0.052 level

4.5 1 case per 234.643 18 9 4.5 2.25 0.09 1000

abnormal 0.12 3.7 per 100 6.257 0.48 0.24 0.12 0.06 0.0024 radiological findings

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NYC-WTC_000140266

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NYC-WTC_000140266Source: NYC Law Department, mirrored locally

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