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Indoor air quality field report, PS 89M, Jan 24 2002

Machine-extracted title · confidence 95%

Field report documenting indoor air quality measurements including temperature, humidity, and TVOCs at PS 89M on January 24, 2002.

NYC-WTC_000174700–000174702
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NYC 9/11 Public Portal Document CONFIDENTIAL, SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008 CITY_21MC100_014659936 TIME 13:30 ATC ASSOCIATES, INC. INDOOR AIR QUALITY FIELD REPORT LOCATION M89 DATE 1/24/02 PROJECT NO. Location Oceup- Temperature ("F) Relative Humidity (%) Carbon Dioxide (pрш) Carhon Monoxide (ppui) soeth Playground Nouth Playgroudd Nortl Exit 53.9 61.0 526 52.7 66.4 530 69.7 667 650 Soutt Exit 69.1 52.4 622- outside south 5.2.9 62.7 53Y Outride Norts 52.3 67.1 524 Hall by 126 Hall by 132 Dance Room 67.9 62.9 635 66•3 57.0 640 67.6 54.2 648. Cafeteria Guideline levels ASHRAE/ATHA/ЕPA 68.2 68-75"F/winter 73-79°F/summer 52.01 30-60% 648 Outdoor level + 700 ppm Comments: / D 9 ppm The assessed location(s) () Does () Does not meet established indoor air quality guidelines. Signature: guj Char Date: 1/24/02 NYC-WTC_000174700 Page { ol 3 19125-297 Respirahle Particulates(ug/m) 54 59 35 38 60 58 38 29 36 65 ug/m" 24-hour average TVOCS (ppm) 1 ppm

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NYC-WTC_000174700Source: NYC Law Department, mirrored locally

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