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Indoor air quality field report, PS 89M, Jan 17 2002

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Field report documenting indoor air quality measurements including temperature, humidity, and TVOCs at PS 89M on January 17, 2002.

NYC-WTC_000174709–000174713
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NYC 9/11 Public Portal Document CONFIDENTIAL, SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008 CITY_21MC100 014659991 TIME _9:50 LOCATION Location 219 232 228 (Hall) 217 226 208 Hall by Elevator 201 202 M89 Оссиp - - - 3 - - ATC ASSOCIATES, INC. INDOOR AIR QUALITY FIELD REPORT DATE 1/17/02 PROJECT NO. Temperature (F) Relative Humidity (%) Carbon Dioxide (ppni) Carbon Monoxide (ppIn) 68.6 68.5 22.7 460 22:9 468 69:1 69:3 22.8 470 23.1 480 69.7 22:6 469 70.0 24.3 600 70.4 23.0 480 71.1 70.1 22.2 448 21.9 445 stair# Hall by 3 Gruideline levels ASHRAE/AIHA/EРА 70.7 68 -75°F/inter 73-79°F/summer 21:8 30-60% 446 Outdoor level + 700 ppm 9 ppm Comments: The assessed location(s) () Does () Does not meet established indoor air quality guidelines. Signature: guilhas Date: 1/17/02 NYC-WTC_000174713 Page 5 of 5 19125 - 297 Respirable Porticulates(ug/m') 39 38 40 37 44 37 30 35 65 ug/m' 24-hour average IVOCS (PPu) 1 ppm

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NYC-WTC_000174713Source: NYC Law Department, mirrored locally

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