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NYC-WTC_000202205

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000202205–000202212
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NYC 9/11 Public Portal Document CITY_21MC100_003270831 TIME_1530 ATC ASSOCIATES, INC. INDOOR AIR QUALITY FIELD REPORT LOCATION PS89 M DATE 2/7/02 PROJECT NO. Location Оссиp. Temperature (T) Relative Hunidity (%) Carbon Dioxide (ppo) Carbon Monoxide (ppш) 40 30 73.0 29.9 855 408 (HAII) - 71.1 28.0 683 • 0 404 71•6 27.0 650 402 10 70.4 27.0 727 302 68.8 32.6 556 301 (HAIL) 315 672 33.2 638 0 25 67.4 33.7 668 308 310 (HAIL) 67.1 32 1 625 Stai- 2(HAII) Guideline levels ASHRAE/AIHA/EPA 66:9 67 1 68-75°F/winter 73-79°F/summer 31-8 32.7 30-60% 620 634 Outdoor level + 700 ppm 9 ppm Comments: The assessed location(s) () Does () Does not meet established indoor air quality guidelines. Signature: Juickn Date: 2/7/02 NYC-WTC_000202211 Page 7 of 8 19125 297 Respirable Partieulates(utg/m) TVOCS (ppm) 41 40 39 40 48 60 58 61 61 70 65 ug/m* 24-liour average 1 ppm

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NYC-WTC_000202211Source: NYC Law Department, mirrored locally

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