Air quality in New York City after the September 11, 2001 attacks: field hearing before the Subcommittee on Clean Air, Wetlands, and Climate Change of the Committee on Environment and Public Works, United States Senate, One Hundred Seventh Congress, second session on air quality in New York City after the September 11, 2001 attacks, February 11, 2002, New York City, Part 2
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24-hour average concentration Action level guidelines AHERA standard Air Air Air Air Quality Standard Air Sampling Locations Ambient Air Quality Ambient Air Sampling Asbestos Austin Tobin Plaza Bronx Brooklyn detection limit 20 Dioxin Environmental Protection Agency EPA Removal Action equipment malfunction February Fresh Kills Feb ground zero ia ia ia IB ia TB TB IB ia IB IB ib lb IB TB January January 14 lb ib lb lb lb Tb limit 20 ppbv lower Manhattan Monitoring TEOM PM National Ambient Air OSHA TWA Park Row Particulate Monitoring Dataram Particulate Monitoring TEOM period permissible exposure limit Removal Action level RL RL RL Sample volume samples were collected side of Stuyvesant South Tower Staten Island Stuyvesant High School TB IB Tb lb TB TB ia TB TB TB TB TM TM TB TM TM TM U.S. Environmental Protection ug/m VOCs volatile organic compounds Wall Street World Trade Center