NYC-WTC_000207838

NYC 9/11 Public Portal Document

'/•i' o V rage y of 2/' ATC ASSOCIATES, INC. N9 O o INDOOR AIR QUALITY FIELD REPORT N!

O <» LOCATION AV date ^-i>g7-g;V PROJECT NO. N5 N3

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A2^A± 2z? z^.r 75-3 z pClosaf WtadOM O No Windows □ Open Windoivs Q Glased Windows tZfZr 7^.^ ,0-No Windows "□ Open Windoivs

i ClosEd Windows 7^/ No Windows Open Windoivs 74 7 <£9. 7/5 □ Closed Windows Willtloivs □ Open Wiedows o 7^.7 gee X □ Closed Windows ' .,0^ Windows

Guideline levels 69-76’FAriiiter 30-60% Out door level 9 ppm I ppm ASHKAE/AIHA 73 -TS'E^suinnier + Q 700 ppm H 1 ro Comments; I I—i

o. The assessed local ioii(s) ()Does (> Does not meet established Indoor air quality guidelines. o o Na Io co o - Sigiiafure; iU' bUZGp Date: O . .'

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NYC-WTC_000207841