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VOC air analysis report, PS 234M, Dec 2001

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Analytical report providing results for volatile organic compounds in air samples collected at the school.

NYC-WTC_000177873–000177877
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NYC 9/11 Public Portal Document

Dec 31 O1 05:41p PSC Analatical Services 6103213667 p. 3

page 2 of 5 31DECO1_1424_I3_N1261_1FR

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING • EPA/NVLAP 101262-0 • NY DOH 10903 • NJ DEP 77678 • AIHA ACCREDITATION NO. 100439 • PA DER 06-353 • CT DPH PH-0238 . NC DENR 5S9

Project: 20904-0 RESULT UNITS CONCENTRATION UNITS METHOD

ATC-12I5-234M-VOC2 Air Volume: 21 L Lab Sample; 1474774 lev

TO-1 /TO-2 fro-17) TOXIC ORGANICS IN AIR T0-1/T0-2 Acrylonitrile < 0.03 ug/sample 0.7 ppb Allyl chloride < 0.03 ug/sample 0.5 ppb Benzene <0.03 ug/sample 0.4 ppb Broimobenzene < 0.03 ug/sample 0.2 ppb Carbon tetrachloride <0.05 ug/sample ' 0 .4 ppb Chlorobenzene < 0.03 ug/sample 0.3 ppb Chloroform <0.03 ug/sample < 0.3 ppb Cumene <0.03 ug/sample < 0.3 ppb 1,2-Dichloroefhane < 0.03 ug/sample < 0.4 ppb 1,2-Dichloropropane < 0.03 ug/sample < 0.3 ppb 1,3-Dichloropropane < 0.03 ug/sample < 0.3 ppb Ethylbenzene < 0.03 ug/sample < 0.3 ppb Ethylene dibromide < 0.03 ug/sample < 0.2 ppb Heptane < 0.03 ug/sample < 0.3 ppb 1-Heptene < 0.03 ug/sample < 0.4 ppb Methylene chloride < 0.03 ug/sample < 0.4 ppb Tetrachloroefhene (PCE) <0.03 ug/sample < 0,2 ppb Toluene 0.05 ug/sample 0.6 ppb 1.1,1 -Trichloroetha ne < 0.03 ug/sample < 0.3 ppb Tiichloroethene fTCE) < 0.03 ug/sample < 0.3 ppb Vinylidene chloride <0.03 ug/sample < 0.4 ppb Vinyl chloride < 0.03 ug/sample < 0.6 ppb Xylenes (total) <0.09 ug/sample < 1.0 ppb

ATC-121S-234M-VOC3 Air Volume; 20.7 L Lab Sample; 1474775

TO-1/TO-2 (TO-17) TOXIC ORGANICS IN AIR TO-1/TO-2 Acrylonitrile < 0.03 ug/sample < 0.7 PPt> AHyl chloride < 0.03 ug/sample < 0.5 Ppb Benzene 0 . 03 ug/sample 0.5 PPb Bromobenzene <0.03 ug/sample < 0.2 ppb Carbon tetrachloride < 0.05 ug/sample < 0.4 ppb Chlorobenzene < 0.03 ug/sample < 0.3 ppb Chloroform < 0.03 ug/sample < 0.3 ppb Cumene <0.03 ug/sample < 0.3 ppb 1,2-Dichloroethane <0.03 ug/sample < 0.4 ppb t .2-Dichloropropane <0.03 ug/sample < 0.3 ppb 1,3-Dichloropropane <0.03 ug/sample < 0.3 ppb Ethylbenzene < 0.03 ug/sample < 0.3 ppb Ethylene dibromide < 0.03 ug/sample < 0.2 ppb Heptane <0.03 ug/sample < 0.4 ppb

4418 POTTSVILLE PIKE. READING, PENNSYLVANIA 19605 610-921-8833 FAX 610-S21-9667

CONFIDENTIAL, CITY_21MC100_0 03444765 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000177874

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NYC-WTC_000177874Source: NYC Law Department, mirrored locally

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