EPA proposal for asbestos clearance criteria applied to WTC indoor cleanup operations.
NYC-WTC_000162253–000162254Folder label: “E-mails 2002 M. Gilsenan”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
x*
Asbestos
Tier Action Asbestos (settled dust) Asbestos (indoor air)
Screening Basis Screening Basis Value Value
1 Aggressive > 100,000 Risk-based > 0.0004 f/cc * Risk-based cleaning. If levels fi'cin2 screening level screening level persist, take for residential for short term additional action to setting (E-04 x 1 exposures (< = reduce exposure. yr) 1 yr) may result in exposures which contribute to long-term risk.
n Maintain 10,000 to Risk- based NYC *Risk- based recommended 100,000 f/cni2 screening level background to screening level cleaning methods. for residential 0.0004 f/cc * for residential Consider additional setting (E-04 x setting (E-04 x monitoring 30 yr) 30 yr).
III No further action <or = <or = NYC required. background or background 1000 f/cm2
NYC-WTC_000162254
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NYC-WTC_000163606
Strawman benchmarks for probable indoor contaminants of concern related to WTC assessment.
3 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.951
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163599
Draft screening levels for asbestos, fiberglass and silica in indoor air and settled dust.
2 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.941
machine-extracted · confidence unavailable · Check page ↗3 shared non-person entities · 1 shared topics · similarity 0.997
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.
3 shared non-person entities · 1 shared topics · similarity 0.959
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.
3 shared non-person entities · 1 shared topics · similarity 0.950
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.
3 shared non-person entities · 1 shared topics · similarity 0.950
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164830
DEP internal memo circulating draft EPA screening level standards for asbestos, fiberglass, and silica in indoor air and settled dust for agency comment.
3 shared non-person entities · 1 shared topics · similarity 0.949
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000154652
Internal tracking document for managing reports, comments, and actions related to environmental compliance cases.
3 shared non-person entities · 1 shared topics · similarity 0.946
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151128
Report establishing health-based screening levels for the indoor environment with cross-agency representation.
3 shared non-person entities · 1 shared topics · similarity 0.946
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139634
DEP memo forwarding EPA draft screening level calculations for asbestos, fiberglass, and silica in indoor air and settled dust for review.
3 shared non-person entities · 1 shared topics · similarity 0.945
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164862
Document introduction describing a cross-agency group tasked with identifying contaminants and establishing health-based screening levels.
3 shared non-person entities · 1 shared topics · similarity 0.945
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.
3 shared non-person entities · 1 shared topics · similarity 0.942
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_000094473
Memo transmitting air sampling results for January 31, 2002, including asbestos data from 86 Trinity Place.
Cited alongside this record in an Ask answer
NYC-WTC_000094486
Letter from Enviroscience Consultants providing air sampling results for the SIAC at 86 Trinity Place.
Cited alongside this record in an Ask answer
NYC-WTC_000094499
Memo reporting air sampling results conducted December 2-3, 2001, at the SIAC and Exchange locations.
Cited alongside this record in an Ask answer
NYC-WTC_000140654
EPA notification of WTC indoor air task force meeting scheduled for April 8, 2002 at 290 Broadway.
Cited alongside this record in an Ask answer