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Indoor air quality field report for PS 234M, Feb 2002

Machine-extracted title · confidence 95%

Field report recording indoor air quality parameters at PS 234M on February 21, 2002, noting ongoing work inside the school.

NYC-WTC_000182893–000182898
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NYC 9/11 Public Portal Document CITY_21MC100_003101788 TIME 1400 ATC ASSOCIATES, INC. INDOOR AIR QUALITY FIELD REPORT LOCATION PS234M DATE_ 2/21/02 _PROJECT NO._ Location Оссир. Temperature (F) Relatiye Humidity (%) Carbon Dioxide (ppm) Carbon Monoxide (PPM) NECorner Outside NW Cornen Outrde SW Corner Outside SE Corner Outside Outside Mais dour Outside Playurownd Outside Courtyund Main Foyer Main Desk Main Office Guideline levels ASHRAE/AIHA/EPA 68-75°F/winter 73-79"F/summer 30-60% Outiloor level + 700 ppm 9 ppm Cominents: Warking inside the scbaok (Buffing Floord, Sanding wulld etsnh The assessed location(s) () Does () Does not meet established indoor air quality guidelines. Signature: Gig (hros Date: 2/21/02 Page _101 6 19125- 279 Respirable Particulates(ug/m') 90 88 93 91 89 97 96 39 38 36 65 ug/m? 24-hour average TVOCS (ppm) 1 ppm NYC-WTC_000182893

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NYC-WTC_000182893Source: NYC Law Department, mirrored locally

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