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Volatile organic compounds blank results, Feb 28 2002

Machine-extracted title · confidence 95%

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

Quantitation Report (Not Reviewed) Data File : C:\HPCHEM\1\DATA\02feb28\03917D.D Vial: 11 Acq On : 28 Feb 2002 4:51 pm Operator: Sample : nyc dup Inst : 210 Mise : February 28, 2002 Multiplr: 1.00 MS Integration Params: GAS5.P Quant Time: Feb 28 17:31 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 663632 5.00 ug/L 0.00 21) CHLOROBENZENE-D5 23.35 82 361854 5.00 ug/L 0.01 49) 1,4-DICHLOROBENZENE-D4 29.41 152 284204 5.00 ug/L 0.02

System Monitoring Compounds 2) 1,2-Dichloroethane-d4 14.63 65 160443 5.70 ug/L 0.00 Spiked Amount 5.000 Recovery = 114.00% 22) Toluene-d8 19.49 98 844616 4.62 ug/L 0.00 Spiked Amount 5.000 Recovery = 92.40% 50) 4-Bromofluorobenzene 26.40 95 303342 5.11 ug/L 0.02 Spiked Amount 5.000 Recovery = 102.20%

Target Compounds Qvalue 12) METHYL TERT BUTYL ETHER 9.30 73 5212 0.07 ug/L 98 18) CHLOROFORM 257 12.79 83 1960410 26.73 ug/L 99 30) BROMODI CHLOROMETHANE 4.O 17.51 83 200827 4.04 ug/L 96 34) TOLUENE 19.71 92 9747 0.07 ug/L 93 39) DIBROMOCHLOROMETHANE 21.89 129 6474 0.29 ug/L 100 44) ETHYLBENZENE 23.56 91 7581 0.03 ug/L 92 45) P & M-XYLENE 23.78 106 6145 0.06 ug/L 97 46) O-XYLENE 24.85 91 5089 0.03 ug/L 88 52) ISOPROPYLBENZENE 25.75 105 5899 0.03 ug/L 90 56) 1,3,5-TRIMETHYLBENZENE 27.16 105 5341 0.03 ug/L 97 57) 2-CHLOROTOLUENE 27.28 91 5934 0.03 ug/L 84 58) 4-CHLOROTOLUENE 27.41 91 6825 0.04 ug/L 96 70) NAPHTHALENE 35.65 128 5980 0.37 ug/L 70

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(#) = qualifier out of range (m) = manual integration 03917D.D HP021102.M Thu Feb 28 17:31:30 2002 Page 1

NYC-WTC_000020579

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NYC-WTC_000020579Source: NYC Law Department, mirrored locally

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