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Indoor air quality field report, PS 234M, July 2001

Machine-extracted title · confidence 92%

Field report recording real-time measurements of CO, temperature, humidity, and particulates at the school.

NYC-WTC_000177884–000177886
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NYC 9/11 Public Portal Document SUBJECT IO PROTECTIVE ORDER NO. SEPT. 2008 CONFIDENTIAL, CITY_21MC100_003444794 TIME ATC ASSOCIATES, INC. INDOOR AIR QUALITY FIELD REPORT Page3 ot 3 LOCATION PS.234M DATE_ 115|02 _PROJECT NO. 19125-0279 Location 109 122 0.0 118 0.0 116 0.0 Halluy MiddlebyEy! 108 0.0 Gymnasium 103 Lunch Ru General affice 104 Outdoors 0.0 0.0 0.0 0.0 0.0 Guideline levels ASHRAE/AIHA emperature~ eo Relative Humdity (%) Carbon Dioxide, (Carbon Monoxide 8(ppm) Respirable Particulates(ug/m') TVOCS (ppm) 68-75°F/winter 73-79"F/summer 30-60% Outdoor level + 700 ррm 12 9ppm 23 65 lg/m" 24-hour average 1 ppm Commenis: The assessed location(s) () Does () Does not meet established indoor air quality guidelines. Signature:. thaget Date: 1/15/02 NYC-WTC_000177886

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NYC-WTC_000177886Source: NYC Law Department, mirrored locally

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