NYC-WTC_000227020

NYC 9/11 Public Portal Document

ATC ASSOCIATES, INC. Page 4 of TIME //: INDOOR AIR QUALITY FIELD REPORT

LOCATION STUYVESANT HIGH SCHOOL date PROJECT NO. 19125-0246

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Q Guideline levels 68 -75“FAvintcr 30-60% Outdoor level + 9 ppm 65 ug/nr 1 ppm H ASHRAE/AUIA 73 -79'’F/sinniner 700 ppm 24-hoiir average

I—i s Commen ts; o o• o Io The assessied location(s) ( ) Docs () Does not meet established indoor air quality guidelines. o CO Signature: K Dale JAlifhl 43^ CO

NYC-WTC_000227027