NYC-WTC_000199019

NYC 9/11 Public Portal Document

ATC ASSOCIATES, INC. of TIME QOc INDOOR AIR QUALITY FIELD REPORT

LOCATION PS/IS89M DATE 5/Q/^ PROJECT NO. ^^^25 0297

Location Gccup. Temperature / Relative Carbon Dioxide Ca rbon Monoxide Respirable TVOCs ("F) Humidity (%) (ppm) (ppm) Particu|ates(ug/n?) (ppm)

C Mo. A 20 O' Cz

5(01 LhahJ_ MSi Ho, o S O;

(CM I Oo <) M/ o 30 M. A ( -/ r-».

He. 3 50 0 Su,.. .-<01^2.1 YJ L

5^4 3f 77.0 H 7 5- L' rJ

n-l Ml . Z HS 24 c c.

^C- G 6MOU ) n I Ho . 3 z 22

Tc T/ 5 L 02 5j^GrzLiI r'

515 J 77 I 38.9 0 IC - ■ o

ScU ( h/4,1 )_______ Ha / 3M. Z 3s Guideline levels 68 -75’F/xvinter 30-60% Outdoor level -b 9 ppm 65 ugTniA 1 ppm ASHRAE/AIHA/EPA 73 -79’F/summer 700 ppm 24-hour average o H p< I to Comments: S O The assessed location(s) () Does () Does not meet established indoor air quality guidelines. o o I o o <71 Signature: Date: SY/TAii

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NYC-WTC_OO0199021