NYC-WTC_000223934

NYC 9/11 Public Portal Document

ATC ASSOCIATES, INC. I’age (,(' _C TIME yC-tv INDOOR AIR QUALITY FIELD REPORT

IA)CATION PS/IS89M DATE PROJECT NO. ^^^25 0297

Location Gccup. Temperature Relative ?Garbon Dioxide Carbon Monoxide Respirable TVOCs < .'""2-(T) .7' Humidity (%) 2 ■ <2 (ppm) 2 2 (ppm) < Particu!ates(ug/n?) (ppm)

- G b/ ( 0 I c;

GAiG' ' (w£/z_i 7’ L I ‘y

7 3 L- Ci L I 2‘.r

7T / '7. c- I •

7 3 ? / / I 72 5 '1-^ T 1,'

-’C 72- c- 2^-! 7.2g / ' 7

'><G n 1 7s? fY

7 3^.? 2 -. , 7 CVO / I (-■'

j ■ '/ 2 b & 7s_S I c t .

Guideline levels i 68 -75’F/wintcr 30-60% Outdoor level + 9 ppm 65 ug/nf’ I ppm Q I 73 -79'’F/sunimer 700 ppm ASHRAE/AIHA/EPA 24-iiour average H K I to

I o Comments:

o The assessed locationfs) () Does ( ) Docs not meet established indoor air quality guidelines. I o o to Signature: Date; to o // I (JI to

NYC-WTC_000223939