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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. SEPI. 2008 CONFIDENTIAL, CITY_21MC100_003464239 NYC-WTC_000180219 ATC ASSOCIATES, INC. Page 14 of 14 INDOOR AIR QUALITY FIELD REPORT Time: |:45Pm LOCATION: 90 Trinity Place /HS for Leadership and public services DATE: 5 802 PROJECT NO: 15-19125-0290 Location Occupants Temperature (*F) Relative Carbon Carbon Respirable TVOCS Humidity Dioxide Monoxide Particulate (6) (pm) (ppm) (ppm) s (ug/m") Roan # 305 Room+ 309 tенща YREmEd Hallway ourside it 306 Room t 206 STAIROUELL'AI TO Gym BASEMENT GYM Out Doors MAIN ENTRANCE Out Doors NORTA Of MAIN ENTRAArE Out Doors SOTAOFMAIN ENTRANCE Guideline levels ASHRAE/AIHA 9 74.2 14-2 74.0 76.5 74.5 75.9 17.8 738 23.2 740 68 - 75°F/winter 73-79 °Fsummer 41.6 n9 0-0 419 139 40.6 628 5 42:0 697 0.0 0-0 407 421 599 4 0•0 918 448 1076 / 0-0 0•0 32,8 416 ) 331 413 33-2 - 402 30-60% Outdoor level 9 ppm 8 54 48 12 65 ug/ml 0.0 0.d 1 ppm + 700 ppm Comments: The assessed location(s) () Does () Does not meet established indoor air quality guidelines. sigemare BA. Date:_ 5/8/02

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NYC-WTC_000180219Source: NYC Law Department, mirrored locally

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