804 document results

Summary EPA notice of chain-of-custody and benchmarks presentation for WTC Taskforce meeting on April 8, 2002.

- 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

Summary Documentation describing the methodology for identifying contaminants of concern using historical data and qualitative toxicity screens.

concentration screen) of available sampling data CD 3 Status of COC List 1) 7 contaminants tentatively identified: Asbestos

Summary Form documenting the tracking and handling of environmental samples collected by the Department of Environmental Protection.

NYC-WTC_000145854 Table 11.2 Contamioants of Potential Concern (COPC) Exceedance By Event Second Floor Hallway: Test 4A Cleanup Criteria COPC Dioxin PAH Asbestos Lead MMVF Silica Air Wipe 0.001 ng/ml 4 ng/m2 | 10.2 ug/m3

Summary Form documenting the tracking and handling of environmental samples collected by the Department of Environmental Protection.

These included asbestos in air by PCM and TEM AHERA, asbestos in settled dust, calcite in air and settled dust, gypsum in air and settled dust, cristobalite in air and settled dust, tridymite in air and

Summary Table listing volatile organic compound (VOC) sampling sites and dates outside of Ground Zero from September 2001 to January 2002.

However, asbestos readings were elevated in both air and dust in both apartments.

Summary Table listing volatile organic compound (VOC) sampling sites and dates outside of Ground Zero from September 2001 to January 2002.

Exposures to asbestos at the Staten Island Landfill were also evaluated using ambient air data.

Summary News report from January 2002 discussing health problems faced by firefighters exposed to contaminated air at Ground Zero.

Among the substances that escaped fi-om the 1.2 million tons of debris at ground zero are asbestos, benzene, dioxin, and polychlorinated biphenyls, known as PCBs.

Summary Form documenting the tracking and handling of environmental samples collected by the Department of Environmental Protection.

First Cleaning COPC Wipe MV Air [Wipe MV Air Wipe MV Dioxin 4 ng/m2 PAH 300 ug/m2 2.7 Asbestos

Summary Interim final report from EPA Region 2 detailing a background study of environmental conditions at the World Trade Center site.

Asbestos ....21 Table 8.

Summary Interim final report from EPA Region 2 detailing a background study of environmental conditions at the World Trade Center site.

100% 14.4 14.4 0% Lead Hard Surface 49% 1.69 1.78 1.88 -5% 5% Asbestos

Summary Volume 1 of the final documentation report for the WTC unoccupied building monitoring program at 125 Cedar Street.

primary clearance levels for this project were defined as: • Dioxin in settled dust, <4ng/m2 • Lead in settled dust, <25µg/ft • Asbestos

Summary Technical specifications for air quality monitoring work at two Manhattan buildings.

Pre-cleaning Sampling Schedule The Sampling Technicians will collect Pre-Cleanup Samples in Accordance with the following Tables: Sampling Matrix for Clean up Project Wipe Sampling Asbestos/ Lead/

Summary Form documenting the tracking and handling of environmental samples collected by the Department of Environmental Protection.

Based on post-cleaning data, an additional three residential units and one common area exceeded a health- based benchmark for either asbestos, lead, MMVF, or alpha-quartz, or a combination of these compounds.

Summary Interim final report from EPA Region 2 detailing a background study of environmental conditions at the World Trade Center site.

Values reported in the literature regarding asbestos and MMVF in air, and lead and dioxin in settled dust from urban environments, that were collected and analyzed using methods

Summary Form documenting the tracking and handling of environmental samples collected by the Department of Environmental Protection.

Cleanup Criteria Post - FirstClean ng COPC Air Wipe MV Air Wipe MV Dioxin 0.001 ng/m3 4 ng/m2 PAH 0.2 ug/m3 300 ug/m2 Asbestos

Summary Form documenting the tracking and handling of environmental samples collected by the Department of Environmental Protection.

Criteria Post - First Cleaning COPC Air Wipe MV Air Wipe MV Dioxin 0.001 ng/m3 4 ng/m2 PAH 0.2 ug/m3 300 ug/m2 Asbestos

Summary Notice instructing staff to preserve original World Trade Center documents for potential legal actions against the City.

local No further action background) background *based on proposed dioxin cancer slope factor Asbestos

Summary Form documenting the tracking and handling of environmental samples collected by the Department of Environmental Protection.

COPC Air Wipe MV Air Wipe MV Dioxin 0.001 ng/m3 4 ng/m2 PAH 0.2 ug/m3 300 ug/m2 Asbestos

Summary Form documenting the tracking and handling of environmental samples collected by the Department of Environmental Protection.

Cleanup Criteria Post - First Clean ng COPC Air Wipe MV Air Wipe MV Dioxin 0.001 ng/m3 4 ng/m2 PAH 0.2 ug/m3 300 ug/m2 Asbestos

Summary Form documenting the tracking and handling of environmental samples collected by the Department of Environmental Protection.

COPC Air Wipe MV Air Dioxin 0.001 ng/m3 4 ng/m2 PAH 0.2 ug/m3 300 ug/m2 Asbestos 0.0009 f/cc n/a Lead 1 ug/m3