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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, SEPT. 2008 CITY_21MC100_003464231 NYC-WTC_000180211 ATC ASSOCIATES, INC. l'age o of 14_ INDOOR AIR QUALITY FIELD REPORT Time: 9,07 AOCATION: 90 Tinily Plece AHS cr Teudership and pibhle services DATE: S/8/02 PROJECT NO: 15-19125-0290 Location Occupants* Temperature (F) Relative Carbon. Humidity Dioxide (%) (ppm) Carbon Monoxide (Ppm) Respirable TVOCS Particulate (Ppm) s (ug/m") HallwayorTsIDE #713 4 Room+ 713 Room+ 602 Roomt 613 STAIR CABE A'TO S'OOR Room #t Jos Room+ 506 ROGm# 515 Roam # 509 STAIRCASE 'À TO у15 Floof Guideline levels ASHRAE/AIHA 22 8 772 771 77.1 777 77.2 76•8 76.6 76.6 76.6 76-4 68-75"F/winter 73-79 °F/summer 415 483 6 0-0 41.9 455 0'0 427 565 0.0 43.0 500 5 0.0 42-6 496 42.5 596 0'0 0 0 41-9 524 421 486 42:3 529 418 593 30-60% Outdoor level 9 ppm 8 8 7 7 65 ug/m 0•0 0'0 0.0 1 ppm + 700 ppnl Comments: The assessed location(s) () Does () Does not meet established indoor air quality guidelines. Signature: Re Date: 5/802

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NYC-WTC_000180211Source: NYC Law Department, mirrored locally

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