EPA memorandum addressing World Trade Center asbestos contamination status and agency efforts to provide information on the situation.
NYC-WTC_000140138–000140169Folder label: “EPA Cate Jenkins”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Resuspension K-Factors for settled asbestos dusts determined from controlled asbestos studies.
ACTIVITY SETTLED DUST LEVEL AIR LEVEL K-FACTORS structures/square structures/mlllillter [multiply the settled dust centimeter (s/cm’) (s/mL) level by tMs number to get the air level]
Carpet cleaning [ordinary 23,000 0.09 3.9 X Iff® vacuum] (0.0000039 )
Broom Sweeping 760,000 53.6 7.1 X Iff’ (0.000071)
Cleaning Storage Area 870,000 2.7 3.1 X 10r° (0. 31 ) Gym-Athletic Activities 9,700 0.23 2.4 X Iff’ (0.000024)
Cable Pull [pulling cable 2,000,000 28.9 1.4 X Iff’ through suspended celling (0.000014) space]
Warehouse (with foridift) 8,200 29.7 3.6x10’ (0.0036)
34. ATSDR (2000) Section 5.4 - Levels Monitored or Estimated in the Environment. Toxicological Profile for Asbestos, Agency for Toxic Substances and Disease Registry, Centers for Disease Control, ATSDR. Available by calling 1-888-42-ATSDR. Currently, only the final draft version is posted at www.atsdr.cdc.gov/toxprofiles/tp61.html 1
35.The AHERA TEM level of 70 structures per square millimeter is the same as 0.02 structures per milliliter. This translates to about 0.01 PCM-equivalent fibers per milliliter. For a lifetime exposure, this would result in an excess cancer risk of over 2 per 1000. See EPA’s Integrated Risk Information System for asbestos at http://www.epa.gov/iris/subst/03 71 .htm .
Even the NYC Department of Environmental Protection testified that this would be safe for only short periods of time. The following is a quote fi-om Frieden, NYC Commissioner:
Health professionals have stated that short-term exposure to airborne asbestos, at levels equal to or lower than 0.01 [fibers per milliliter, PCM equlvalenfi, carries an extremely low risk of causing asbestos-related illness.
[Frieden, T. R., and Miele, J. A. (February 11, 2002) Testimony before the U. S. Senate Committee on Environment and Public Works Subcommittee on Clean Air, Wetlands, and Climate Change. Alexander Hamilton U. S. Customs House, New York City. Thomas R. Frieden, Commissioner, New York City Department of Health, Joel A. Miele Sr., Commissioner, New York City Department of Environmental Protection]
See discussions and chart of different air asbestos levels with associated risks in the following memorandum:
-35-
NYC-WTC_000140166
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NYC-WTC_000140083
Forwarded EPA memorandum dated June 9, 2002, concerning the Asbestos Reservoir and carpet testing methods.
27 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.994
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Technical memorandum from EPA discussing ultrasonication testing for asbestos in carpets and HEPA vacuuming effectiveness.
27 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.994
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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.
21 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.988
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Memorandum detailing procedures for asbestos wipe sampling in Lower Manhattan and estimating associated cancer risks from dust exposure.
21 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.986
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Memorandum comparing asbestos data in Manhattan to other sites and arguing for cleanup under the Superfund statute.
17 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.983
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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.
21 shared non-person entities · 1 shared topics · similarity 0.986
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Internal tracking document for managing reports, comments, and actions related to environmental compliance cases.
20 shared non-person entities · 1 shared topics · similarity 0.985
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Draft fact sheet from DOH and DEP addressing tenant concerns regarding asbestos fibers at 105 Duane Street.
22 shared non-person entities · 1 shared topics · similarity 0.969
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Document excerpt listing counsel and staff members assigned to a paper on infrastructure related to World Trade Center recovery.
13 shared non-person entities · 1 shared topics · similarity 0.967
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Correspondence criticizing the EPA and DEP regarding asbestos, silica levels, and safety clearance after cleaning at 114 Liberty Street.
11 shared non-person entities · 1 shared topics · similarity 0.960
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Letter from EPA official to a Congressional representative criticizing the adequacy of the 114 Liberty Street cleanup.
11 shared non-person entities · 1 shared topics · similarity 0.960
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Letter from Enviroscience Consultants providing air and bulk sampling results for 86 Trinity Place.
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Summary of air and dust sampling results collected from private residences and common areas at 250 South End Avenue.
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NYC-WTC_000140235
Memorandum comparing asbestos data in Manhattan to other sites and arguing for cleanup under the Superfund statute.
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NYC-WTC_000089519
Computer-generated sequence listing samples including pesticides and toxics analyzed under EPA Method 508 in late November and December 2001.
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NYC-WTC_000089710
Technical record outlining liquid-liquid extraction parameters, including drip rates and reagent lot numbers for environmental sample processing.
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NYC-WTC_000090502
Log sheet detailing liquid-liquid extraction parameters including drip rates and pH measurements for laboratory samples.
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