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Volatile organic compounds blank results, Feb 28 2002

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Laboratory analysis results for volatile organic compounds blank sample AE03921 dated February 28, 2002.

NYC-WTC_000020548–000020749

Folder label: “524 2/28/02 TO 3/2/02

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NYC 9/11 Public Portal Document

User: Huhn, William Westchester Dept, of Labs & Research Date: 03/04/2002 Time: 13:51:42

Sample: AE03921 Analysis: $Q_524 Volatile Organic Compounds-Reference Rec Units: ug Started: 3/4/02 13:51 Ended: 3/4/02 13:51 Analyst: BH Result source: calculation Page: 1

Component Name Viol Result MDL Surr - 1,2-DICHLOROETHANE- 5.5 .5 Surr - 4-BROMOFLUOROBENZ 5 .5 Dichlorodifluoromethane 70 .5 4 Chloromethane 96 .5 577 Vinyl chloride 106 .5 $ Bromomethane 80 .5 Chloroethane 96 .5 -8 T richlorofluoromethane 106 .5 9 1,1-Dichloroethene 100 .5 0 ” Methylene Chloride 96 .5 11 Methyl tert butyl ether 88 1.0 12 trans-1,2-dichloroethene 98 .5 '13 1,1 -dichloroethane 100 .5

216 ,2,2-dichloropropane 108 .5 16 cis-1,2-dichloroethene 102 .5 Chloroform 100 .5

3920 Bromochloromethane 1,2-dichloroethane Surr - TOLUENE-D8 102 100 4.8 .5 .5 .5 21 1,1,1 -trichloroethane 98 .5 22 1,1 -dichloropropene 98 .5 25. Carbon tetrachloride 92 .5 Benzene 92 .5 2E T richloroethene 94 .5 pis 1,2-dichloropropane 94 .5 , Dibromomethane 88 .5 Bromodichloromethane 88 .5 29 Methyl iso-butyl ketone 68 1.0 30 cis-1,3-dichloropropene 88 .5 31 Toluene 92 .5

33 trans-1,3-dichloropropene : 1,1,2-trichloroethane ’ ,34 4 Tetrachloroethene 114 88 94 .5 .5 .5 35 1,3-dichloropropane 94 .5 -36 D ibromochloromethane 80 2.0 37 Chlorobenzene 90 .5 1,1,1,2-tetrachloroethane 90 .5 38 Ethylbenzene P & M-xylene 96 94 .5 .5 41 0-xylene 96 .5 42 Styrene 80 .5 1,1,2,2-tetrachloroethane 82 .5 Bromoform 80 2.0 Isopropylbenzene 94 .5 1,2,3-trichloropropane 96 .5 47 N-propylbenzene 84 .5 Bromobenzene 88 .5

NYC-WTC_000020560

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NYC-WTC_000020560Source: NYC Law Department, mirrored locally

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