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Indoor Air Quality Field Report, 90 Trinity Place, May 2002

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ATC Associates indoor air quality field report for 90 Trinity Place documenting environmental conditions in May 2002.

NYC-WTC_000180206–000180219
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NYC 9/11 Public Portal Document SUBJECT IO PROTECTIVE ORDER NO. CONFIDENTIAL, SEPI. 2008 CITY_21MC100_003464230 NYC-WTC_000180210 ATC ASSOCIATES, INC. Page 5 of 14_ INDOOR AIR QUALITY FIELD REPORT Time: 9.01 Am LOCATION: 20 Trinity Place /HS for Leadership and public services DATE: 5/8/02 PROJECTNO: 15-19125-0290 Location Occupants Temperature (°F) Relative Carbon Carbon Respirable Humidity Dioxide Monoxide Particulate (ppm) .(ppm) TVOCS (ppm) (%)45 s (ug/m) Hallway oursI0E# 815 Room # 815 Room# 809 Roomft 805 Hall wau OTSIDE Roant 806 STMp CASÉ'ÀT 7HE FLOOR Romm #702 Rooms 703 Rom # 705 Roomit 711 Guideline levels ASHRAE/AIHA 23 16 4 4 76.8 767 766 76-2 16:7 167 76.9 22.2 169 76-5 68 - 75°F/winter 73-79 °F/summer 452 568 8 0.0 451 595 449 692 0.0 0.0 44.2 684 44:3 748 8 34 26 438 624 ( 43:5 562 8 0.0 43.5 561 ( 432 519 430 514 30-60% Outdoor level 1 9 ppm 5 8 65 ug/m 8.0 0-0 1 ppm +700 ppm Comments: The assessed location(s) () Does () Does not meet established indoor air quality guidelines. Signature: Le Date: 5/8/02

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NYC-WTC_000180210Source: NYC Law Department, mirrored locally

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