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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_ 014659990 TIME _9:75 LOCATION Location 302 301 (HAII) 315 (oym) 310 (MAI1) 324 (нAN) 326 328 (11911) 319 33а (HAI) ATC ASSOCIATES, INC. INDOOR AIR QUALITY FIELD REPORT M89 DATE 1/17/02 _PROJECT NO. 19125 - 297 Oceup. Temperature (F) Relative Humidity (%) Carhon Dioxide (рPm) Carhon Manoxide (ррш) 72.6 721 - 70.3 - 69.7 - 693 - 70.0 - 69.4 - 68•3 - 68.2 star #/ Guideline levels ASHRAE/AIHA/EPA - 68.1 68-75°F/winter 73-79°F/summer Comments: Respirable P'aiticulates(ug/m') 20.4 455 25 20.6 460 25 21:1 465 25 21.0 470 26 21.8 455 26 2,•4 449 28 21.7 458 26 21-4 454 25 21.8 466 22.2 30-60% 471 Outdoor level + 700 ppm 9 ppm 26 65 ug/m" 24-hour average The assessed location(s) () Does () Does not meet established indoor air quality guidelines. Signature: goi chas Date: 1/17/02 Page 4 015 TVOCS (ppm) 1 ppm NYC-WTC_000174712

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NYC-WTC_000174712Source: NYC Law Department, mirrored locally

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