VOC sampling locations table for Ground Zero area, Jan 2002

NYC 9/11 Public Portal Document

ND Non-detect NERL National Exposure Research Lab of EPA’s Office of Research and Development ng nanogram NHEERL National Health and Environmental Exposure and Risk Laboratory, of EPA’s Office of Research and Development NIEHS National Institute of Environmental Health and Safety NIOSH National Institute for Occupational Safety and Health NO2 nitrogen dioxide NOAEL no-observed-adverse-effect level NY New York NYC New York City NYCDEP New York City Department of Environmental Protection NYCDOHMH New York City Department of Health and Mental Hygiene NYSDOH New York State Department of Health NYSDEC New York State Department of Environmental Conservation ORD EPA’s Office of Research and Development OSHA Occupational Safety and Health Administration PAH polycyclic aromatic hydrocarbons Pb lead PCB polychlorinated biphenyl compounds PCM phase contrast light microscopy Pd palladium PEL Permissible Exposure Limit pg picogram PM, PM2.5, PM|o Particulate matter, and PM at less than 2.5 pm and less than 10 pm diameter Ppb part per billion ppm part per million PS public school PUF polyurethane foam plug for air monitoring REL Recommended Exposure Levels RfC Reference Concentration S sulfiir, or structures of asbestos Sb antimony SF cancer slope factor Si silica SO2 sulfur dioxide SRIXE synchrotron radiation-induced X-ray emission STEL Short Term Exposure Level STSC Superfund Technical Support Center TEF toxicity equivalency factor TEM transmission electronic microscopy TEOM tapered element oscillating microbalance TEQ toxic equivalent concentration TLV Threshold Limit Value

DRAFT-DO NOT QUOTE OR CITE viii October 2002

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