NYC-WTC_000202610

NYC 9/11 Public Portal Document

ATC ASSOCIATES, INC. Page J_of^ INDOOR AIR QUALITY FIELD REPORT

LOCATION PSJSA H DATE Z/l /// IO I PROJECT NO.

TYOa P "jl s lii'ylilt! (ppm) J

.q S'4 .Za 6 ■ o tv .0; ^11 31 ■ O a ■ <t>

:21a 1 . C( 6 3 (9 ■ <o -14 SL^ ~7 ?. a- o ^4 o. c:> 6 A 6(9 A c? ■ <5 A<^ OSA

5^- 13.3 o ■ o d -o a ■ <s 5 A A 1-6^ 5:^ ? 6 ' / G • 6 0^4 c? - o A 1.1 10. G ■ o o c>

o - 1 5^ • 5 9^ . O ^4 Guideline levels 69 76"FAYinter 30-60% Outdoor level + 9 ppm 50 iig/m^ 1 ppm ASHRAE/AIHA 73-78.5“F/suinnwr 700 ppm

Comments: o H K3 I The assessed location(s) () Does () Does not meet established indoor air quality guidelines. he

S O Signature: Date: _Al2m^ o

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NYC-WTC_000202610