Forwarded EPA memorandum dated June 9, 2002, concerning the Asbestos Reservoir and carpet testing methods.
NYC-WTC_000140083–000140124Folder label: “EPA Cate Jenkins”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Table A - ESTIMATING AIR LEVELS FROM ASBESTOS DUST LEVELS
Uses asbestos risk assessment methodotogy of EPA Region 1 to calculate air levels from dust using the K-factors found by Willette, J, R.. and Hays, S. M. (1994) Chapter 8. Resuspension of Settled Dust. In: Seff/ed Dust Sampling and Analysis, Lewis Publishers, CRC Press.
DUST LEVEL x K-factor = AIR LEVEL .where the K-factor increases with increasing human activities that stir up dusts (resuspension)
MEASURED K-factor = IO"* K-factor = 10’ K-factor =10"* K-factor = 10’ DUST LEVEL activities where K-factor activities where K-factor no activities studied activities where K-factor measured included measured included gym- resulting in this K- measured included structures per vacuum cleaning carpet. athletic activities, broom factor warehouse with a fork lift square cleaning storage area sweeping, installing centimeter cable above ceiling tiles (s/cm^) multiply dust level by multiply dust level by multiply dust level by multiply dust level by 0.000001 to get 0.00001 to get 0.0001 to get 0.001 to get AIR LEVEL (s/mL) AIR LEVEL (S/mL) AIR LEVEL (s/mL) AIR LEVEL (S/mL) 100 0.0001 0.001 oToi 071 500 0.0005 0.005 0.05 0.5 t;ooo 0.001 0.01 OJ i 2,000 0.002 0.02 0Z2 2 3,000 003 0703 0.3 3 4,000 O04 0704 0.4 4 S^OOO 0.005 0.05 0?5 5 6,000 0.006 0.06 0.6 6 7,000 0.007 0707 0.7 7 S/W 0.008 0.08 0Z8 8 9,000 O09 0709 0?9 9 10,000 or 071 1 10 20,000 0702 0.2 2 20 30,000 0.03 0.3 3 30 40,000 0704 074 4 40 50,000 0705 0.5 5 50 6O,OO0 0705 075 6 50 7O,OO0 0707 077 7 70 8O,O00 0705 075 8 50 9O,OO0 0700 070 § 00 1OO,O00 07T 1 To T00 200,000 072 2 20 200 300,000 073 3 30 300 400 000 074 4 40 400 500,000 075 5 50 500 600,OOO 075 5 S0 500 700,000 077 7 70 700 800,OOO 075 5 50 500 900,000 070 0 00 000 1,OOO,O00 1 TO T00 1000 2,000,000 2 20 200 2000 3,000,000 3 30 300 3000 4,OOO,OO0 4 40 400 4000 5,000,000 5 50 500 5000 6,000,000 5 50 500 5000 7,000,000 7 70 700 7000 8,000,000 5 50 500 5000 9,OOO,OO0 0 00 000 0000 1O,OOO,O00 T0 TOO T000 10000 50,000,000 50 500 5000 50000 100,000,000 T00 T0O0 10000 100000
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NYC-WTC_000140109
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NYC-WTC_000140040
Technical memorandum from EPA discussing ultrasonication testing for asbestos in carpets and HEPA vacuuming effectiveness.
31 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 1.000
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140138
EPA memorandum addressing World Trade Center asbestos contamination status and agency efforts to provide information on the situation.
27 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140170
EPA memorandum on wipe sampling methods for asbestos in Lower Manhattan buildings, resuspension projections, and cancer risk estimates from WTC dust exposure.
18 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.988
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140259
Memorandum detailing procedures for asbestos wipe sampling in Lower Manhattan and estimating associated cancer risks from dust exposure.
16 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.986
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140235
Memorandum comparing asbestos data in Manhattan to other sites and arguing for cleanup under the Superfund statute.
13 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140127
Technical memorandum from EPA discussing ultrasonication testing for asbestos in carpets and HEPA vacuuming effectiveness.
10 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151635
EPA memorandum detailing plans for asbestos wipe sampling, projecting airborne dust levels, and estimating increased cancer risks from WTC dust exposure.
16 shared non-person entities · 1 shared topics · similarity 0.986
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000154652
Internal tracking document for managing reports, comments, and actions related to environmental compliance cases.
16 shared non-person entities · 1 shared topics · similarity 0.984
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000125845
Draft fact sheet from DOH and DEP addressing tenant concerns regarding asbestos fibers at 105 Duane Street.
17 shared non-person entities · 1 shared topics · similarity 0.969
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000094469
Letter from Enviroscience Consultants providing air and bulk sampling results for 86 Trinity Place.
6 shared non-person entities · similarity 0.959
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000161674
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 0.958
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000154976
Correspondence criticizing the EPA and DEP regarding asbestos, silica levels, and safety clearance after cleaning at 114 Liberty Street.
12 shared non-person entities · 1 shared topics · similarity 0.956
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NYC-WTC_000140036
Administrative notice requiring preservation of World Trade Center-related documents as evidence for potential future legal actions against the City.
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NYC-WTC_000140038
Forwarded EPA memorandum dated June 9, 2002, concerning the Asbestos Reservoir and carpet testing methods.
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NYC-WTC_000140040
Technical memorandum from EPA discussing ultrasonication testing for asbestos in carpets and HEPA vacuuming effectiveness.
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NYC-WTC_000140080
Forwarded EPA memorandum dated June 9, 2002, concerning the Asbestos Reservoir and carpet testing methods.
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Reference chart comparing asbestos air concentration standards, detection limits, and lifetime cancer risk levels for fibers per milliliter PCM equivalents.
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