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Indoor air quality field report, P.S. 150M, May 2002

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Field report documenting indoor air quality measurements at P.S. 150M on May 1, 2002.

NYC-WTC_000177970–000177973
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NYC 9/11 Public Portal Document SUBJECT IO PROTECTIVE ORDER NO. CONFIDENTIAL, SEPT. 2008 CITY_21MC100_ TIME 1330 ATC ASSOCIATES, INC. INDOOR AIR QUALITY FIELD REPORT LOCATION PS150 M DATE 5/1/02 PROJECT NO. Location Оссир. Temperature (F) M- Relatiye Humidit (%) Carbon Dioxide (ppni) Carbon Monoxide (ppm) 402 18 73 ° 30.i 901 401 20 77.9 31.4 790 West Stoir (Haly) 501 73.2 31.4 765 21 72.1 331 1053 0 502 720 3і.0 740 Staff Rm (HAN) Girls Rn (HaN) 72.j 32.1 1040 72.4 3.2.3 1048 Boys Rm (tau)) 503 3і 72.4 736 32 6 1055 0. 504 Guideline levels ASHRAE/AIHA/EPA 21 730 68-75°F/winter 73-79"F/summer 37.6 39.3 30-60% 1144 121E Outdoor level + 700ppm 9 ppm Comments: The assessed location(s) () Does () Does not meet established indoor air quality guidelines. Signature: Sincla Date: El1loi NYC-WTC_000177973 Page 4ofy 19125-289 Respirable Particulates(ug/nl) ITVOCS (ppm) 13 0.0 17 0.0 18 0.0 20 0.0 17 20 19 20 16 00 00 20 65 ug/m* 24-hour average 0.0 1 ppm

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NYC-WTC_000177973Source: NYC Law Department, mirrored locally

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