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Indoor air quality field report, March 2002

Machine-extracted title · confidence 90%

Field report from ATC Associates recording indoor air quality measurements including carbon monoxide and humidity levels at a school site.

NYC-WTC_000179444–000179451
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Scanned page image, NYC-WTC_000179447
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NYC 9/11 Public Portal Document

ATC ASSOCIATES, INC. r.iiM UM II ^7: 3 / INDOOR AIR QUALITY FIELD REFOR'a

LOCA I ION /676 777/->7 DA'IE £? - y C- PROJECT 'NO.

Location Occup, ,i Teni|ieiatnie Relative Carbon Dioxide Cai bon Monoxide Respii able I’VOCs '("D ■■’\ IJiiinidity (%) (ppm) (ppm) Pai(iculat‘‘s(pg/inJ) (ppml

G to <9 3 ^9. tP G M £-7oe 6 O H O 7 3 H O 9 Z y C> G V O H (9 76. y e:’ M O O H O Hl < M S G Hl €> 76, y 3&. 6 3C\f J / 7) a O G a M s H (9 7^9 76^ 6 6^ M Hl G >

S ' 67 6 ^9.<7 V7 X/ '/ /6 O, O O

3 77. C 3^'/' 9/7 5 y 6, o j7.-Cd~^ CO M hj H 79 r 3y. / z 6,0 e. to o o z 76./ fiTTW/vTintt/C 30-60% ■ _____ Z o. O co Cdidcline levels < iiitdooi Ilo el I 9 ppm 6S ng/sn' ! (>P'u Q ASltRAli/AniA/EP\ 73 -79T7siiminei 700 ppm 2 1 houi *m s u H K I

I o t (HiiiiieiH^,

i he .i&seiised li>e.i(iiin(s) ( ) Does ( ) Does not meet estuhlished lodoni ,iii (|ii;ilin omdeiinis. o I o o co .‘.ign.iioi e. 77/ 777^ itaie 7? - •^6 CT <0

NYC-WTC_000179447

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NYC-WTC_000179447Source: NYC Law Department, mirrored locally

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ATC Associates indoor air quality field report documenting environmental measurements at a Board of Education location in September 2002.

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