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VOC analysis results, sample AE09569, April 26, 2002

Machine-extracted title · confidence 90%

Laboratory report for volatile organic compounds in sample AE09569 dated April 26, 2002.

NYC-WTC_000082355–000082457

Folder label: “524 4/26/02

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NYC 9/11 Public Portal Document Quantitation Report (Not Reviewed)

Data File : C:\MSDCHEM\l\5973N\02APR26\0426B4.D Vial: 8 Acq On : 27 Apr 2002 5:42 am Operator: Sample : lb Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: Lscint.p Quant Time: May 01 11:56:56 2002 Quant Results File: W042302.RES

Quant Method : C:\MSDCHEM\1...\W042302.M (RTE Integrator) Title : VOC method 8260 Last Update : Wed May 01 09:30:08 2002 Response via : Initial Calibration DataAcq Meth : W042302

Internal Standards R.T. Qlon Response Cone Units Dev(Min)

1) 1,4-Difluorobenzene 17.70 114 1183804 5.00 ug/L 0.00 27) Chlorobenzene-d5 25.47 117 1080068 5.00 ug/L 0.00 51) 1,4-Dichlorobenzene-d4 31.54 150 828955 5.00 ug/L 0.00

System Monitoring Compounds 2) 1,2-Dichloroethane-d4 16.78 65 222567 5.16 ug/L 0.02 Spiked Amount 5.000 Recovery = 103.20% 17) Toluene-d8 21.62 98 1593252 5.01 ug/L 0.00 Spiked Amount 5.000 Recovery = 100.20% 54) 4-Bromofluorobenzene 28.51 95 482516 5.10 ug/L 0.00 Spiked Amount 5.000 Recovery = 102.00%

Target Compounds Qvalue 21) Chloroform 14.96 83 23618 0.39 ug/L 97 70) Nitrobenzene 34.91 77 2913 7.67 ug/L 96 72) Hexachlorobutadiene 37.84 225 3046 0.10 ug/L 90 73) Naphthalene 38.39 128 15820 0.35 ug/L 93 74) 1,2,3-Trichlorobenzene 39.34 180 9932 0.35 ug/L 98

(#) = qualifier out of range (m) = manual integration 0426B4.D W042302.M Wed May 01 11:56:57 2002 Page 1

NYC-WTC_000082456

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NYC-WTC_000082456Source: NYC Law Department, mirrored locally

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