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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 IO PROTECTIVE ORDER NO. CONFIDENTIAL, SEPT. 2008 TINE 18 :37 ATC ASSOCIATES, INC. INDOOR AIR QUALITY FIELD REPORT Page/Our_ LOCATION Location 100 Trinity Ocou PeTenipergtore (СF) R.208 l.204 6 R.205 / BSMe Hall way Gym Auditoriune Tst. #1. Main Loßpy Ext. Main Eatry Ext. Main Entry souhe Ext. Hain Eutry Norfa Guideline levels ASHRARYATHA/EPA 9 79.2 Т8.6 77.9 18.1 77. 2 77./ 78. 0 60.4 59.7 59.0 68-75°F/winter 73-79"F/summer DATE 3-7•02 PROJECT NO. 19/25-0291 Relative + Humidity (%) Carbon Dioxida ,(Ppm) Çurbon Moroxidle 27.9 25.1 24.9 1142 983 25.3 826 993 29.9 1259 26.3 984 26.1 24.4 25.1 23.5 30-60% 1101 62/ 68Y 655 Outduor level + 700 ppm 3 ey Respirable TVỐČş Poruiculares(1g/0) 2 0.О 3 3 3 3 3 3 3 3 9 ppm Comments: The assessed location(s) () Does () Does not meet established indoor air quality guidelines. signanr: M. medicet Date: 3-7-02 6 7 10 10 0.0 0.0 0.0 0.0 0.0 22 112 86 80 65 ug/m? 24-hour average 0.0 0.0 0.0 0.0 Tppn CITY_21MC100_003395237 NYC-WTC_000178842

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NYC-WTC_000178842Source: NYC Law Department, mirrored locally

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