Proposal detailing a survey to assess seven preliminary contaminants in 100 buildings within a four-block radius of the World Trade Center site.
NYC-WTC_000164877–000164879
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Lead (settled dust)
------ + Tier I Screening Value I Action + I > 40 ug/ft2 or 1,200 ppm aggressive cleaning (professional?) - if readings persist talce additional action to reduce exposure
II 400 - 1,200 ppm maintain recommended (i.e., diligent wet/HEPA) cleaning methods - consider additional monitoring
III I <40 ug/ft or 400 ppm I no further action
1 I
Lead (indoor air)
Tier I Screening Value Action
I > 1.5 ug/m3 (NAAQS) aggressive cleaning (professional?) - if readings persist ta)ce additional action to reduce exposure
II bacicground - 1.5 ug/tn3 maintain recommended (i.e., diligent wet/HEPA) cleaning methods - consider additional monitoring
III I < baclcground I no further action
Final WTC Asbestos Action Leve...
3
NYC-WTC_000164879
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
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.
5 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.970
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.
5 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.950
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.944
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 · Same agency, volume and box · similarity 0.943
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163606
Strawman benchmarks for probable indoor contaminants of concern related to WTC assessment.
5 shared non-person entities · 1 shared topics · similarity 0.965
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.
5 shared non-person entities · 1 shared topics · similarity 0.964
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 0.959
machine-extracted · confidence unavailable · Check page ↗3 shared non-person entities · 1 shared topics · similarity 0.958
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151128
Report establishing health-based screening levels for the indoor environment with cross-agency representation.
5 shared non-person entities · 1 shared topics · similarity 0.951
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 0.946
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.
5 shared non-person entities · 1 shared topics · similarity 0.944
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000154652
Internal tracking document for managing reports, comments, and actions related to environmental compliance cases.
5 shared non-person entities · 1 shared topics · similarity 0.943
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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Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.
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.
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NYC-WTC_000163606
Strawman benchmarks for probable indoor contaminants of concern related to WTC assessment.
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Multi-agency discussion of benchmark reference levels for probable indoor contaminants of concern, including asbestos in air.
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NYC-WTC_000162253
EPA proposal for asbestos clearance criteria applied to WTC indoor cleanup operations.
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