Document detailing the methodology for identifying contaminants of concern and listing seven tentatively identified substances.
NYC-WTC_000140815Folder label: “B.Avaltroni EPA INDOOR AIR TASK FORCE”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Basis for Identifying COCs
1) Similar to approach employed for identifying COCs in the ambient air
- Historical information on building collapses/fires
- Review (qualitative toxicity/concentration screen) of available sampling data
Status of COC List 1)7 contaminants tentatively identified:
Asbestos Fibrous Glass Refractory Ceramic Fibers Silica Dioxin PAHs Lead
(Mold - secondary contaminant)
NYC-WTC_000140815
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000140643
Documentation describing the methodology for identifying contaminants of concern using historical data and qualitative toxicity screens.
6 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.940
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164875
Proposal to sample and assess building interiors near the World Trade Center for seven preliminary contaminants.
5 shared non-person entities · similarity 0.895
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151128
Report establishing health-based screening levels for the indoor environment with cross-agency representation.
6 shared non-person entities · 1 shared topics · similarity 0.892
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.
6 shared non-person entities · 1 shared topics · similarity 0.891
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000145869
Interim final report from EPA Region 2 detailing a background study of environmental conditions at the World Trade Center site.
6 shared non-person entities · 1 shared topics · similarity 0.891
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000149537
Instructions and sections for collecting sample location data from a specific building interior.
4 shared non-person entities · similarity 0.887
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000107277
Transmission journal record confirming receipt of asbestos and lead analysis data on November 14, 2002.
5 shared non-person entities · 1 shared topics · similarity 0.883
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139656
Forwarded spreadsheet compiling residential asbestos sampling results collected in November-December 2001, including Building 11 reoccupancy assessment.
3 shared non-person entities · 1 shared topics · similarity 0.881
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000132602
Additional air quality monitoring documentation and test results for multiple Broadway commercial locations.
5 shared non-person entities · similarity 0.881
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000132576
A letter from Capital Properties submitting additional air quality monitoring results for Broadway and Trinity Place buildings to the DEP.
5 shared non-person entities · similarity 0.881
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000105620
A letter from a property management firm submitting additional air quality monitoring results for 111 Broadway and Trinity Place to the DEP.
5 shared non-person entities · similarity 0.881
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139712
Series of emails forwarding a draft memo between DEP staff members for review and finalization.
3 shared non-person entities · 1 shared topics · similarity 0.881
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.
Notice instructing staff to preserve original WTC documents as potential evidence in future legal actions against the City.
Filed in the same folder
NYC-WTC_000140813
Meeting notice for task force discussion of Contaminants of Concern and benchmarks presentation scheduled for April 8, 2002.
Filed in the same folder
NYC-WTC_000140814
Document outlining the creation of a cross-agency group tasked with identifying contaminants of concern and establishing screening levels.
Filed in the same folder
NYC-WTC_000140816
Document explaining the exclusion of VOCs and other chemicals from the contaminant of concern list due to trace amounts.
Filed in the same folder
NYC-WTC_000140817
Document describing the expanded monitoring program approach using existing regulations to define action levels for indoor air.
Filed in the same folder