NYC-WTC_000227040

NYC 9/11 Public Portal Document

ATC ASSOCIATES, INC. riMle 3^^'^ . INDOOR AIR QUALITV FIELD RETORT

IA.)( A I It In --S> s I I*. PRO.IECT NO. /A<A.S^.. /■

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333 7A ■S^'-J ^5? Q Guideline le\’els 68 -75"E/35'io(er ' 3I)-«U% Ouliloor level + 9 ppm 65 og/nr 1 ppm ASUKA E/AillA/CP/v 7J -79"F/smiiinei' 7(10 ppm 24-hour average H '

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s o I—i Comments:

o, o 1 rite assessed Im alimits) ( ) Docs ( ) Docs mil meet established iiulooe air quality guidelines. o <O Sigiialinc: Tote: CO CD OA CDi

NYC-WTC_000227042