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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 TO PROTECTIVE ORDER NO. SEPT. 2008 CONFIDENTIAL, CITY_21MC100. 003464226 NYC-WTC_000180206 ATC ASSOCIATES, INC. Page 1of _14_ INDOOR AIR QUALITY FIELD REPORT Time: 8.25Am LOCATION: 90 Trinity Place /HS for Leadership and public services DATE: 5,8/02_PROJECT NO: 15-19125-0290 Temperature (F) Humidity (%) (ppm) (ppm) s (ug/m) Out Doors MAIN ENTRANCE 68 •0 49.3 403 57 0-0 Out Doors NORTA OF MAIN ENTRANKE 68.0 49.6 416 43 0•0 Out Doors SOUTA OFMAIN ENTRANeE 685 49.8 435 54 0.0 LOBBY /St FlUOR 10 125 51-8 466 22 0.0 CLEVATOR LOBBY FROOR 20 73.5 51•4 468 12 0 0 1415 flooR Hallway 4 25.1 50.6 558 10 0.0 1419 flooR JATUtEN 2 76.5 50.5 502 14 0.7 141KFLO0R ROOm #1406 FuLl FuLL 76.1 49.5 579 6 10 0.0 STAIR CASE À'TO1SHE 2 166 49.4 557 8 0.0 Room# 1403 17 76.5 501 654 8 0-8 Guideline levels 68-75F/winter ASHRAE/ATHA 30-60% Outdoor level 9ppm 65 ug/m 1 ppm 73-79 E/summer +700 ppm Comments: The assessed location(s) () Does () Does not meet established indoor air quality guidelines. signature: fr zaden Date: 5/8/02

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NYC-WTC_000180206Source: NYC Law Department, mirrored locally

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