NYC-WTC_000177887
Letter and report detailing real-time indoor air quality monitoring conducted at the school in December.
13 shared non-person entities · 1 shared topics · similarity 0.990
machine-extracted · confidence unavailable · Check page ↗Document / 5 pages
NYC-WTC_000208064
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NYC 9/11 Public Portal Document Mr. Bernard P. Orlan Real-Time Air Monitoring P.S. 89 (Manhattan) December 19,2001 Page 3 ATC Project No. 15-19125-0297 AIHA = American Industrial Hygiene Association NYS DEC = New York State Department of Environmental Conservation REAL-TIME SAMPLING RESULTS ATC collected real-time environmental measurements three times during the day. Two sets of readings were collected indoors and two sets were collected outdoors. The results are shown in Tables 2, 3 and 4. Field data sheets are found in Attachment 1. Location Y Temp. (°F) TABLE 2 Q.penk REAL-TIME MEASUREMENTS 9:30 AM Rel. Humid (%)! 602 COResp. ,TVOC (ppm) (ppm) Part. SO2 (ppm) (ppm) (ug/m3) H2S (ppm) NO (Ppm) Playground Hallway by cafeteria Room 202 Roof by intake 43.5 66.5 28.6 27.7 365 371 1 21 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 66.4 43.4 26.1 29.3 370 360 1 1 25 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Location Temp. (°F) TABLE 3 REAL-TIME MEASUREMENTS 12:00 Noon Rel. Humid. (%) CO2 (ppm) CO (ppm) Resp: Part. (ug/m?) TVOC (ppm) SO2 (ppm) H2S (ppm) NO (ppm) Playground Hallway by cafeteria Room 202 Roof by intake 44.1 66.4 28.8 27.5 360 378 2 1 21 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 66.1 43.1 26.7 29.1 369 359 1 3 24 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 NO2 (ppm) 0.3 0.1 0.2 0.2 NO2 (ppm) 0.3 0.2 0.1 0.2 CITY_21MC100_003018938 NYC-WTC_000208066
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NYC-WTC_000208066Source: NYC Law Department, mirrored locally
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Report of indoor air quality measurements collected at PS 234M on February 7, 2002, as part of a program to maintain acceptable air quality.
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Cover letter from ATC Associates submitting indoor air quality measurements collected at P.S. 150M on May 29, 2002.
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NYC-WTC_000177887
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