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Indoor air quality field report, 100 Trinity Place, March 2002

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Field report from ATC Associates documenting indoor air quality measurements at 100 Trinity Place on March 7, 2002.

NYC-WTC_000178833–000178842
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NYC 9/11 Public Portal Document SUBJECT TO PROTECTIVE ORDER NO. CONFIDENTIAL, SEPI. 2008 TIN: 8:07 ATC ASSOCIATES, INC. INDOOR AIR QUALITY FIELD REPORT PageLor_ LOCATION 100 Trinity DATE 3-7-02 PROJECT NO. 19/25-0291 Location Oceup. Temperature: (F):: • Carbon Dioxide (ppm) Carbon Monoxide (ppm) Ext. Main Eutr. Ext Main Eutr. Souta Ext. Main Eut. Norte latee fe. Hallway Library r TOOG Tofёe Il. sfaircase A Уtu fl. R9/5 Hallway 3 4 R.goep 3 -Guideline levels ASHRAE/AHA/EPA C'omments: Relative : : Humidity (%) 54.0 53.7 33.4 66.2 65.1 65.9 65.9 67.0 66.9 67.2 68-75°F/winter 73-79"Fsummer 29.7 29.3 30.1 31.8 30.7 30.3 32.9 32.4 31.4 29.8 30-60% 422 418 4/2 473 402 423 638 554 595 501 Oufdoor level + 700 ppm Respirable Particulates(ng/m.) 3 3 3 i 2 2 2 2 2 2 9 ppm The assessed location(s) () Does () Does not meet established indoor air quality guidelines. Signature: Ш. Kdinв Date: 3-7-02 TVOCS (ppm) 69 12 85 0.0 0.0 0.0 12 13 0.0 0.0 14 0.0 8 13 21 17 65 ug/m" 24-hour average 0 0 0.0 0.0 0.0 Tppa CITY_21MC100 _003395228 NYC-WTC_000178833

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NYC-WTC_000178833Source: NYC Law Department, mirrored locally

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