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Indoor air quality field report, PS 234M, Jan 2002

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Field data sheet recording indoor air quality parameters including temperature, humidity, and gas levels at PS 234M on January 25, 2002.

NYC-WTC_000177852–000177854
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NYC 9/11 Public Portal Document SUBJECT IO PROTECTIVE ORDER NO. CONFIDENTIAL, SEPI. 2008 CITY_21MC100_003444701 NYC-WTC_000177852 TINE 10:00 ATC ASSOCIATES, INC. INDOOR AIR QUALITY FIELD REPORT LOCATION PS234M DATE 1/25/02 _PROJECT NO.. Location Occup:. Temperațure (E) d Kelatiye Humidity (%)- Carbon Dioxide Cirbon Maroxider DutsdelEust)_ Outsde (North) Oitoide (scuth) C.tade (west) ByCust eFFiu Mair Foyer General Offire. Ma.n Hal by Desk Cafeteria 46.1 2o.j 459 - 4663 235 - 46.1 25.0 460 455 - 45.6 271 436 - 67.7 25.0 650 5 73.7 21.0 618 - 66.1 23.8 620 - 66.9 24.0 608 16 118 Guideline levels ASHRAE/AIHA/EPA - - 64.3 65.5 68-75"F/vinter 73-79"T/summer 23.0 23.5 30-60% 493 491 Outdoor level + 700 ppm Comments: U 9 ppm The assessed location(s) ( ) Does () Does not meet established indoor air quality guidelines. Signature: Joi Chag Date: 1/05/02 Page 1of 3 19125-279 Respirable Muctlates(dp/ml) ATYOCS 28 21 20 30 28 28 29 19 18 65 ug/m 24-hour average 1 ppm

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NYC-WTC_000177852Source: NYC Law Department, mirrored locally

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