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Indoor Air Quality Field Report, P.S. 150M, Apr 2002

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Field report containing temperature, humidity, and gas readings from indoor air quality testing at P.S. 150M.

NYC-WTC_000177938–000177941
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NYC 9/11 Public Portal Document SUBJECT TO PROTECTIVE ORDER NO. CONFIDENTIAL, SEPT. 2008 CITY_21MC100_005759565 NYC-WTC_000177938 TNE1200 ATC ASSOCIATES, INC. INDOOR AIR QUALITY FIELD REPORT LOCATION PS150 M DATE 4/5/0- PROJECT NO. Location Cutside Sinth side Occup. Temperature ("F) - Relative Humidity (%) Carbon Dioxide (ppn) Carbon Monoxide (ppm) 7c ü 590 48% Si Ciner tcl 5t 7 478 EustSide. 7c.3 NECuine- Me.th Sde 649 69.7 58.2 57.4 57.5 4F7 475 481 NwÜs.ner. 7c o 570 485 ...W.sts.te N..th(Top:+starrs) Euat. (Tip efstire) Muin Eatronee Guideline levels ASHRAEAIA/EPA 698 704 57.3 58.0 49с. 480 706 St.L 70.9 08-75"F/winter 73-79"F/sumimer 58.2 30-60% 476 468 Outdoor level + 700 ppm Z 2 2 2 2 2 2 9 ppm Comments: Wa-king in the Cuentyurd The assessed location(s) ( ) Does () Does nod meet established indoor air quality guidelines. Signature: paik Daíe: 4/15/cc. Page 1011 19125-289 Respirable Particulates(ug/ml) 24 24 25 16 21 20 23 20 19 65 ig/m" 24-hour average TVOCS (ppm) C. Tppm

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NYC-WTC_000177938Source: NYC Law Department, mirrored locally

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NYC-WTC_000177962

Data sheet recording environmental parameters including carbon dioxide and particulate levels at P.S. 150M.

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