Documentation describing the methodology for identifying contaminants of concern using historical data and qualitative toxicity screens.
NYC-WTC_000140643Folder label: “M.G: EPA INDOOR AIR WORKING GROUP MTGS.”
OCR status: ok · source: pdftotext
z' z o o i ■ CD
1^ o o Basis for Identifying COCs ■D c CT o o' 4^ "0 O O) 1) Similar to approach employed for identifying COCs in the ambient air o Ca3 03
O - Historical information on building collapses/fires o o c 3 - Review (qualitative toxicity/concentration screen) of available sampling data CD 3
Status of COC List 1) 7 contaminants tentatively identified:
Asbestos Fibrous Glass Refractory Ceramic Fibers Silica Dioxin PAHs Lead
(Mold - secondary contaminant)
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000140815
Document detailing the methodology for identifying contaminants of concern and listing seven tentatively identified substances.
6 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.940
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140747
Document listing chemicals under consideration or proposed for deletion from the list of contaminants of concern.
4 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.826
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000160878
EPA notice of chain-of-custody and benchmarks presentation for WTC Taskforce meeting on April 8, 2002.
6 shared non-person entities · 1 shared topics · similarity 0.876
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000153816
Document titled Environmental Monitoring of New York City After the World Trade Center attacks, dated November 26, 2001.
4 shared non-person entities · 1 shared topics · similarity 0.847
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 0.837
machine-extracted · confidence unavailable · Check page ↗3 shared non-person entities · 1 shared topics · similarity 0.830
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000147563
Draft record containing tabulated data regarding asbestos sampling or analysis at the World Trade Center recovery site.
2 shared non-person entities · 1 shared topics · similarity 0.829
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000152825
Draft protocol establishing procedures for evaluating airborne and settled dust in residential and commercial areas near the World Trade Center.
3 shared non-person entities · 1 shared topics · similarity 0.820
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000150408
Memorandum regarding the FBI releasing vehicles from Ground Zero to Fresh Kills Landfill for investigation purposes.
3 shared non-person entities · 1 shared topics · similarity 0.819
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155794
Cover sheet for a fax transmission sent from the US EPA Region 2 office in August 2002.
4 shared non-person entities · similarity 0.818
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000153247
Draft protocol for assessing airborne and settled dust exposures in residential areas following the World Trade Center collapse.
3 shared non-person entities · 1 shared topics · similarity 0.818
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 0.817
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_000140640
Notice instructing staff to preserve original World Trade Center documents as potential evidence in future legal actions against the City.
Filed in the same folder
NYC-WTC_000140641
Agenda for a meeting discussing status of activities, public requests, and development of sampling and cleaning plans for WTC debris.
Filed in the same folder
NYC-WTC_000140642
Introduction to a cross-agency group tasked with identifying contaminants of concern and establishing health-based screening levels for the indoor environment.
Filed in the same folder
NYC-WTC_000140644
Summary of contaminants removed from the review list due to being non-detectable or found only in trace amounts, including all VOCs.
Filed in the same folder
NYC-WTC_000140645
Documentation establishing Tier I, II, and III action levels for lead and other contaminants based on EPA and HUD guidance.
Filed in the same folder