NYC-WTC_000209141

NYC 9/11 Public Portal Document

I. o 01 ATC ASSOCIATES, INC. l’ag® of I’ h) X

TIME noo INDOOR AIR QUALITY FIELD REPORT ( X00

- r%> o o LOCATION PS/IS89M DATE .5/34/01 PROJECT NO. 1’125-0297 I h)

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CHrtll ) 61?. Ho.7 630 i 31 o o I" 3(6 6^. 2 Ho. 6 5q^ I Jo O-O I Ho.6 H zCMt^n) S80 ( 6 Q o

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Si39 Cwrtti) 6^.3 4<?..3 540 I 33 <9.0

330 14 R’.O Ho 740 I a3 c? o

33a IT- Mvl Ho-o 7/5 ( a© o.-o Slot,,- ) 693 <53 f 2& 0.0 Guideline levels 68-7S*FAriattr 30-61)% Outdoor level + 9 ppm 65 ug/m^ 1 ppm

o l-l H I ASHKAE/AIH/VEPA 73 -79’FAiininier 700 ppm 24-hour average

Comments; iV I—i S O Tlie assessed Iocation{s) () Does () Does not meet established indoor air quality guidelines. (§1 I o o Signature: ..... Date: j;Ziq/oi C9 X to o Cn M co tU to

N YC-WTC_000209147