NYC-WTC_000218553

NYC 9/11 Public Portal Document

ATC ASSOCIATES, INC. TIME INDOOR AIR QUALITY FIELD REPORT

LOCATION PsaaM DATE PROJECT NO. Hias-

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3(96 CCJ.O 17’6 S)J 0 Guideline levels 68 -75’F/winter 30-60% Outdoor level + 9 ppm 65 ug/jir 1 ppm n ASHRAE/AIHA/EPA 73 -79"F/summer 700 ppm 24-hour average I—I H

LO Comments: n The assessed location(s) (') Does () Does not meet established indoor air quality guidelines. 1° o o o Signature: Date: 5. A /o A. <7* <7*

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NYC-WTC_000218555