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Indoor air quality field report, PS 89M, Jan 24 2002

Machine-extracted title · confidence 95%

Field report documenting indoor air quality measurements including temperature, humidity, and TVOCs at PS 89M on January 24, 2002.

NYC-WTC_000174700–000174702
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NYC 9/11 Public Portal Document CONFIDENTIAL, SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008 CITY_21MC100_014659938 TIME 14:05 LOCATION Location 302 306 Hall by 332 316 230 226 Audatorium 204 M89 Occup. - 28 - - i5 - 5 ATC ASSOCIATES, INC. INDOOR AIR QUALITY FIELD REPORT DATE 1/24/02 PROJECTNO. Temperature ("Г) Relative Humidity (%) Carbon Dinxiile (Ppm) Carbon Monoxide (Ppm) 69.1 42.7 708 69.3 42.4 726 70.2 44.9 801 69.9 45.1 819 68.2 43.2 690 68.9 42.5 623 69.3 695 42.2 581 42.7 622 69.2 42.5 599 208 Guideline levels ASHRAE/AIHA/EPA 69-2 68-75°F/winter 73-79°F/sumnier 42.2 30-60% 611 Outdoor level + 700 ppm 9 ppm Comments: The assessed location(s) () Does () Does not meet established indoor air quality guidelines. Signature: gui Ch Date: 1/24/0z NYC-WTC_000174702 Page 3 0l3 19175 - 297 Respirable Particulates(tig/mh") 25 29 35 30 31 40 a7 >1 31 65 ug/m" 24-hour average TVOCs (ppm) 1 ppm

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NYC-WTC_000174702Source: NYC Law Department, mirrored locally

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