Strawman benchmarks for probable indoor contaminants of concern related to WTC assessment.
NYC-WTC_000163606–000163611Folder label: “E-mails 2002 M. Gilsenan”
OCR status: ok · source: pdftotext
z Z I.O PCM only • The maximum allowable level for workers average over STEL Value, 1,0 free measured over a 30-minute period, is the Occupational Safety o o i 1^ 30 minute period (OSHA short term exposure level). • PPE required above I.O fZee PCM. and Health Administration’s (OSHA) Short-Term Exposure Limit for asbestos, as specified in theOSHA Construction Industry Regulation for Asbestos, 29 CFR 1926.1 lOI. co
U o c o CT o o' o> 1. General public includes adults and diildren not directly involved in emergency responseand recovery activities. 2. Documents and information that were considered in setting theaction level. 3. Background levels for NYC are U Ca5 O O> being determined. 4. PCM equivalents (PCMe) is determined using TEM analysis and counting fibas > 0.3 pm in diameter and > 5 pm in length. PCMe should bedetermined using oonsistoit methods to provide comparable 3. 91 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 CD 3
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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 · Same agency, volume and box · similarity 0.954
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 · Same agency, volume and box · similarity 0.951
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139416
Multi-agency discussion of benchmark reference levels for probable indoor contaminants of concern, including asbestos in air.
7 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗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.
7 shared non-person entities · 1 shared topics · similarity 0.984
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 0.965
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 0.963
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 0.957
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 0.957
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 0.956
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 0.956
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000149346
A chain of custody cover sheet for air monitoring samples sent to the EPA Region 1 laboratory in January 2003.
5 shared non-person entities · 1 shared topics · similarity 0.952
machine-extracted · confidence unavailable · Check page ↗6 shared non-person entities · 1 shared topics · similarity 0.952
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
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NYC-WTC_000162065
Notice instructing staff to preserve original World Trade Center documents as evidence for potential legal actions against the City.
Filed in the same folder
NYC-WTC_000162066
Daily summary of calls received by the WTC hotline on May 1, 2002, categorized by topic.
Filed in the same folder
NYC-WTC_000162067
Daily summary of calls received by WTC hotline operators on May 1, 2002, categorized by topic.
Filed in the same folder
Filed in the same folder
NYC-WTC_000162073
Daily summary of calls received by the WTC hotline on May 2, 2002, including requests for indoor air testing.
Filed in the same folder