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Indoor air quality field report, 100 Trinity Place, March 2002

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Field report from ATC Associates documenting indoor air quality measurements at 100 Trinity Place on March 7, 2002.

NYC-WTC_000178833–000178842
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NYC 9/11 Public Portal Document SUBJECT TO PROTECTIVE ORDER NO. CONFIDENTIAL, SEPT. 2008 CIIY 21MC100 003395235 NYC-WTC_000178840 TINIE 17:48 ATC ASSOCIATES, INC. INDOOR AIR QUALITY FIELD REPORT Page Sur_ LOCATION 100 Trinity DATE 3-7-02 PROJECT NO. 19/25 -0291 Location Oceuy: Temperature: 3("F) 2.605 R.604 6 77.3 x Rélative a Hamidio (%) 31.3 30.1 Carbon Dioxide (rpn) *Chrbon Monoxide (ppm) xe 1011 1123 2 Respüabile Pasiculates(i/m) 4 10 TVOCş s(ppm)3 0.0 12 R. 606 5 R.608 sfaircase A Gfa 41. 5th t. Hallway R.507 e.50g Sfaircas s Ita H. Hte Huавнay Cnideline levels ASIRAE/ATHA/EPA 77. 9 2 0.0 76.9 78.3 77. 2 30.3 30.5 30.8 29.6 1006 1236 2 0.0 2 5 0.0 1420 8 76.8 76.9 1331 921 3 9 О. T7.4 72.8 73.6 68-75°F/winter 73-79"F/summer 26.4 28.2 24.5 27.2 30-60% 3 6 1027 784 979 Ontdoor level + 700 pps 3 3 3 9 ppm 23 Y 8 65 ug/m? 24-hour average 0. 0.0 1 ppo Comments: The assessed location(s) ( ) Does ( ) Does not meet established indoor air quality guidelines. Signature: Ш. kudicк Date: 3-7-02

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NYC-WTC_000178840Source: NYC Law Department, mirrored locally

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