NYC-WTC_000179036

NYC 9/11 Public Portal Document

. ATC ASSOCIATES, INC. Page of TIME (g>:Mo INDOOR AIR QUALITY FIELD REPORT

LOCATION DATE l<3( PROJECT NO. t q f.^A'-oA} 4 L

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w G W So I 3 33.C, I 1 O G H O H 5o3 33b q^.3 3:f-M IS I O H O G 30 7^.3 ^8.0 137^/ I o W O H 75-S 35-0 loo 3 1 0 H O O H O H S 32 73.9 10^0 2^ O < G H H a O w a M s H ‘>Hd 9 3. 3 3o^ ( O H HI w >G ^5 33 74-7 35^ cZ ^9 0 S ' o NJ 531 5 3.0.6 67|. I o 02 w 7^-1 21.(7 69'? 9^ 0 H

Cci€e't<‘' I'cL 80 al .1’ ■’fill'.' ?. \ 96 0 o 65 ug/m^ o Guideline levels 68 -75”P/wiiiter 30-60% Outdoor level + 9 ppm 1 ppm co Q ASHRAE/ArHATEPA 73 -79“F/siimmer 700 ppni 24-hour average . H

I—i Comments: s o o The assessed location(s) () Does () Does not meet established indoor air qnalit)' guidelines. o I o o co Signature: Date: P/z^/o/ (JI

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NYC-WTC_OO0179040