NYC-WTC_000204516

NYC 9/11 Public Portal Document

ATC ASSOCIA TES, INC. I’oue.,^ ol'^^

UMI' INDOOR AIR QUALITY FIELD REPORT

UX'A l lOiN date .S’trojec t no.

» Locution Ovcnp leinptradire KcliOiM'. Cnriioii Dioxide Carbon Monoxide Kesidraiiie i'V(}f's I’artieuhtleXog/in’) t"E) Hmnidiiy(%) (ppm) A""” -. (jildh) ) 1 p JD /^d?5 o /7 ^.o I

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JO 3S-.g 0 ^-7 JO /c9z;l <9 /7f <9,0 37azZ li^e-S T^ ------------ 7<9-3 3<9-.Z 0 // 0,0 Guideline levels 66 -7.5"F/M'iu(er 30-60% Outdoor IcA’el + 9 ppm 65 iig/ni 1 I'pni o 73 -79'T/sunimcr 7(1(1 ppoi 24-honi average f ASUKA IL/AlllA/ri’A H

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NYC-WTC_000204524