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NYC-WTC_000197442

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000197442–000197456
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NYC 9/11 Public Portal Document

ATC ASSOCIATES, INC. Page pH'S TIME 13 fc> INDOOR AIR QUALITY FIELD REPORT

LOCATION 1 //5/0 a. PROJECT NO. \ *9 135 " O AMG

■ I . £•' /-hr? I Caihoii Dioxide Ca ode ibie ■

I (ppm)

1001 30 3|. j o 35 o (ooH as 918 0 45 0 30 9oo 3o loG^ o loo'll 15 ai-.9 T9o 0 O (0/0 3o '^3.3 3Q.S loo tj 0 0 Ioo«iChzHi) >!.<} 51-1 7^2 0 3o o

(of7 <35 >1-8 -S 8<i<| 0 (9 0| lOc^S 30 loo o 35 0 a3G ■701 0 Mo O i-kj! - 71.8 68 -75"I<7wintci 30-60% CQO Outdoor level + o 9 ppm ____ __________ 65 ug/m 0 1 ppm Q Guideline levels H ASHRAE/AIHA7EPA 73 -79®F/summer 700 ppm 24-hour average 1"^ I—i s Comments: o o o Io The assessed location(s) () Does ( ) Does not meet established indoor air qualitj' guidelines. o co o Signature: Date: (JI O O (JI

NYC-WTC_000197455

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NYC-WTC_000197455Source: NYC Law Department, mirrored locally

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