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Volatile organic compounds blank results, Mar 1 2002

Machine-extracted title · confidence 95%

Laboratory analysis results for volatile organic compounds blank sample AE04037 dated March 1, 2002.

NYC-WTC_000020751–000020867

Folder label: “524 3/1/02 - 3/2/02

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NYC 9/11 Public Portal Document

Quantitation Report (Not Reviewed)

Data File : C:\HPCHEM\1\DATA\0 2mar01\0 3 01G10.D Vial: 6 Acq On : 1 Mar 2002 2:53 pm Operator: Sample : gas 10 Inst : 210 Mise : March 1, 2002 Multiplr: 1.00 MS Integration Params: GAS5.P Quant Time: Mar 1 15:32 2002 Quant Results File: HP021102.RES

Quant Method : C:\HPCHEM\1\METHODS\HP021102.M (RTE Integrator) Title : VOCS BY EPA METHOD 524 Last Update : Thu Feb 28 12:27:24 2002 Response via : Initial Calibration DataAcq Meth : HP021102

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

1) 1,4-DIFLUOROBENZENE 15.58 114 773287 5.00 ug/L 0.00 21) CHLOROBENZENE-D5 23.34 82 430288 5.00 ug/L 0.00 49) 1,4-DICHLOROBENZENE-D4 29.41 152 334093 5.00 ug/L 0.02

System Monitoring Compounds 2) 1,2-Dichloroethane-d4 14.63 65 180549 5.50 ug/L 0.00 Spiked Amount 5.000 Recovery = 110.00% 22) Toluene-d8 19.49 98 967699 4.45 ug/L 0.00 Spiked Amount 5.000 Recovery = 89.00% 50) 4-Bromofluorobenzene 26.40 95 353715 5.07 ug/L 0.02 Spiked Amount 5.000 Recovery = 101.40%

Target Compounds Qvalue 3) DICHLORODIFLUOROMETHANE 4.21 85 512157 10.02 ug/L 98 4) CHLOROMETHANE 4.86 50 521837 11.94 ug/L 97 5) VINYL CHLORIDE 4.89 62 786670 14.52 ug/L 98 6) BROMOMETHANE 5.74 96 386257 10.93 ug/L 99 7) CHLOROETHANE 5.87 64 391793 11.44 ug/L 97 8) TRICHLOROFLUOROMETHANE 6.39 101 762314 14.97 ug/L 100 11) METHYLENE CHLORIDE 8.97 49 5674 0.08 ug/L 82 12) METHYL TERT BUTYL ETHER 9.31 73 5295 0.06 ug/L 94 70) NAPHTHALENE 35.67 128 6463 0.34 ug/L # 70

(#) = qualifier out of range (m) = manual integration 0301G10.D HP021102.M Fri Mar 01 15:33:11 2002 Page 1

NYC-WTC_000020767

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NYC-WTC_000020767Source: NYC Law Department, mirrored locally

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