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Indoor air quality field report, PS 89M, Jan 11 2002

Machine-extracted title · confidence 95%

Field report documenting indoor air quality measurements including temperature, humidity, and TVOCs at PS 89M on January 11, 2002.

NYC-WTC_000174714–000174721
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Scanned page image, NYC-WTC_000174716
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NYC 9/11 Public Portal Document CONFIDENTIAL, SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008 CITY 21MC100_ 014660009 ATC ASSOCIATES, INC. Pagezor 8 TIME INDOOR AIR QUALITY FIELD REPORT LOCATION PS89M DATE Y11/2002 PROJECINO 19125-0297 201 Warren Street, N1, ,NY Location Orrup Temperature Relative Carbon Diokide Carbon Monoxide Respirable No2 (F) Humidity (%) (ppm) (Ppm) Particulates(pg/m') 401 0.0 71.3 23.1 466 402 0.0 70.3 227 475 404 00 71:3 23.2 490 8 406 0.0 71:4 23.2 462 Hallugky 408 0.0 70.4 22.7 467 408 0.0 70.9 22.6 461 426 0.0 710 213 461 428 0.0 69.7 2/.5 449 10 430 0.0 68.9 22.2 458 4 32 0 -0 71.9 22.0 459 7 Guideline levels 68-75°F/winter 30-60% Outdoor level + 9 ppm 65 ug/m? ASHRAE/АШA/EРA 73-79°F/summer 700 ppm 24-hour average Comments: TVOCS (ppm) The assessed location(s) () Does () Docs not meet established indoor air quality guidelines. Signature: fllagat Date: (/1|02 0.0 0-0 0.C 0 C I ppm NYC-WTC_000174716

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NYC-WTC_000174716Source: NYC Law Department, mirrored locally

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