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Indoor Air Quality Field Report, 90 Trinity Place, Mar 2002

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ATC Associates indoor air quality field report for 90 Trinity Place detailing temperature, humidity, and pollutant levels in March 2002.

NYC-WTC_000180169–000180182
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NYC 9/11 Public Portal Document SUBJECT IO PROTECTIVE ORDER NO. CONFIDENTIAL, SEPI. 2008 CITY_21MC100_003463595 NYC-WTC_000180174 ATC ASSOCIATES, INC. Page 6 of 1Y INDOOR AIR QUALITY FIELD REPORT Time: (1-40 Am LEADERSHP PUBLCSERULES LOCATION: 90 Trinity Place /HS for Econemies And Finanees DATE: 03/08/2002 PROJECT NO: 15-19125-0290 Location Occupants Temperature (F) Relative Carbon- Humidity Dioxide: (%) (ppm) Carbon Monoxide (ppm). Respirable mvoc. Particulate (ppm) s (ug/m') 414 Fl0OR R0OM #404 4tti FlooR poom #409 4H SAFLOTAIRWELLA 3rdFloR tall wae ra EOSRATOL YRE 3rd FlooR Room # 309 INFRONTOF 3rnoR Fedmt15 3rd floof1oowy TARWELB ad floor hodmita ueax Rooni #i 306 3Rd FlOOR Stairwell To zud FlooR A Ind FlooR Hall wan ELeVaTORARZA Guideline levels ASHRAE/AIHA 19 705 70-8 70.5 704 70•3 704 706 70•4 707 70.5 68-75°F/winter 73-78.5°F/summer 35.3 725 47 347 672 343 618 338 571 341 523 344 658 2 2 2 2 2 43 45 44 42 42 336 714 41 334 561 34.2 710 335 571 30-60% Outdoor level + 700 ppm 2 2 2 9ppm 43 40 46 50 ug/m' 1 ppm Comments: The assessed location(s) () Does () Does not meet established indoor air quality guidelines. Signature: Prasad Doddapaneni/ Prasad Dedelapami Date:03/08/02

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NYC-WTC_000180174Source: NYC Law Department, mirrored locally

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