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Indoor air quality field report, PS 89M, Jan 21 2002

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Field report documenting indoor air quality measurements including temperature, humidity, and TVOCs at PS 89M on January 21, 2002.

NYC-WTC_000174703–000174708
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Scanned page image, NYC-WTC_000174705
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NYC 9/11 Public Portal Document CONFIDENTIAL, SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008 CITY_21MC100_014659959 TIME LOCATION PS.89. Location Occup.- 404 406 Hallway 408 H10 Staxir 2 426 428 430 432 Guideline levels ASHRAE/ATHA ATC ASSOCIATES, INC. INDOOR AIR QUALITY FIELD REPORT 4-tb. foor DATE 01/21/02 PROJECT NO. Temperature (°F) 72.8 71.9 72.7 72.3 72,4 70.8 72.7 71.8 71.3 72.5 68-75°F/winter Relative Humidity (%) :23.8 22.9 23.7 22.5 22.4 23.2 23.4 24.6 24.8 23.2 30-60% Carbon Dioxide (ppm) Chrbon Monoxide (Ppm) 449 451 438 451 467 495 471 491 73-79°F/summer 469 461 Outdoor level + 700 ppm 9 ppm Comments: The assessed location(s) () Does () Does not meet established indoor air quality guidelines. Signature: tatoryo Date: 01/21/02 NYC-WTC_000174705 Page 3016 19125-02 Respirable Particnlites(ug/mi") 39 29 36 31. 41 32 38 36 32 39 65 ug/m 24-hour average IVOCS (ppm) 0.0 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0:0 0.0 Ippm

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NYC-WTC_000174705Source: NYC Law Department, mirrored locally

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