NYC-WTC_000163606
Strawman benchmarks for probable indoor contaminants of concern related to WTC assessment.
7 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗Document / 5 pages
Indoor COCs benchmark levels discussion, March-April 2002
Machine-extracted title · confidence 72%Multi-agency discussion of benchmark reference levels for probable indoor contaminants of concern, including asbestos in air.
NYC-WTC_000139416–000139420Folder label: “2002 E-Mail Sent M. Gilsenan”
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OCR status: ok · source: pdftotext
Z Z I.O PCM only • The maximum allowable level for workers average over STEL Value, 1.0 fee measured over a 30-minute period, is theOceupational Safety » o * o 30 minute period (OSHA short term exposure level). and Health Administration’s (OSHA) Short-Term Exposure Limit for asbestos, * i • PPE required above 1.0 f/cc PCM. as speeified in theOSHA Construetion Industry Regulation for Asbestos, 29 CFR 1926.1101. f co
“0 o c o CT o o' Ca3 1. General publie ineludes adults and diildren not direetly involved in emergeney response and reeovery aetivities. 2. Documentsand information that were considered in setting theaction level. 3. Background levels for NYC are "0 CD being determined. 4. PCM equivalents (PCMe) is determined using TEM analysis and counting fibers > 0.3 pm in diameter and > 5 pm in length. PCMe should bedetermined using consistent methods to provide comparable o ro 03 o concentrations. If PCM is exceeded, may need to determine PCMe using TEM. Use professional judgement to determine if PCMe is needed by evaluating the frequency and magnitudeof exceedance, size of geographic area involved, O and trends in data. o o c 3 o 3
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NYC-WTC_000139420Source: NYC Law Department, mirrored locally
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NYC-WTC_000164835
DEP memo forwarding draft benchmark levels for indoor contaminants of concern developed by DHHS, EPA, and OSHA for interagency review and approval.
8 shared non-person entities · 1 shared topics · similarity 0.985
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164877
Proposal detailing a survey to assess seven preliminary contaminants in 100 buildings within a four-block radius of the World Trade Center site.
5 shared non-person entities · 1 shared topics · similarity 0.964
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000154652
Internal tracking document for managing reports, comments, and actions related to environmental compliance cases.
6 shared non-person entities · 1 shared topics · similarity 0.961
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.
6 shared non-person entities · 1 shared topics · similarity 0.959
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.
6 shared non-person entities · 1 shared topics · similarity 0.958
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.
6 shared non-person entities · 1 shared topics · similarity 0.958
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.
6 shared non-person entities · 1 shared topics · similarity 0.952
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.
6 shared non-person entities · 1 shared topics · similarity 0.951
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162222
EPA staff distributed an environmental laboratory report to federal and city agencies on May 15, 2002.
6 shared non-person entities · 1 shared topics · similarity 0.951
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162253
EPA proposal for asbestos clearance criteria applied to WTC indoor cleanup operations.
3 shared non-person entities · 1 shared topics · similarity 0.950
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.
6 shared non-person entities · 1 shared topics · similarity 0.950
machine-extracted · confidence unavailable · Check page ↗More like this page
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