NYC-WTC_000198942

NYC 9/11 Public Portal Document

ATC ASSOCIATES, INC. Pfige 2^ of TIME 9QO INDOOR AIR QUALITY FIELD REPORT

LOCATION PS3A M DATE 3/21)0 PROJECT NO.

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a3D 2 72.3 ^4.<9 478 0 20 a o Guideline levels 68 -TS’F/wiiiter 30-60% Outdoor level + 9 ppm 65 ug/nP 1 ppm H ASHRAE/AIHA/EPA 73 -79"F/siimnier 700 ppm 24-hour average NJ I—i s o Comments: o o Io The assessed location(s) () Does () Does not meet established indoor air quality guidelines. o

co Signature: Date: J/i-ilo X, co o

NYC-WTC_000198944