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

Machine-extracted title · confidence 96%

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

NYC-WTC_000177950–000177953
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Scanned page image, NYC-WTC_000177951
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NYC 9/11 Public Portal Document SUBJECT IO PROTECTIVE ORDER NO. SEPT. 2008 CONFIDENTIAL, CITY_21MC100_005759593 NYC-WTC_000177951 TIME _1230 ATC ASSOCIATES, INC. INDOOR AIR QUALITY FIELD REPORT LOCATION P5150 M DATE 4/18/022 _PROJECT NO. Location Occup: Temperature Relative Humidity (% Carbon Dioxide 3(ppm) Carbon Monoxide (ppm) Man Lobby Ed's. Rmn. Mai- Desk Main Office Guidance Rm 731 10 2 72.8 72.6 73.0 45.4 45.0 45.3 45.6 790 801 788 726 733 45.9 46.3 Hull by Boys. Hall by Birls Hall by Fast Stain Resouree Rm 3 Nurse Rm Ciuideline levels ASHRABIAIHA/EPA 73.5 738 736 74.0 68-73"1/winter 73-79"k/summer 46.5 46.7 46.9 50.0 30-60% 810 890 781 777 786 819 830 Outdoor level + 700 ppm C'omments: 3 3 3 3 3 3 3 3 3 3 9ppm The assessed location(s) () Does () Doesnod meet established indoor air quality guidelines. Siguature: Jin Chan Dale: 4/18/0г Page 201 4 19125-289 Respirable Particulates(ug/mr) 29 19 26 30 32 30 28 30 16 6,5 ug/m' 24-hour average TVOCs (ppm) O. Ippu

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NYC-WTC_000177951Source: NYC Law Department, mirrored locally

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