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GCMS analysis results, sample AE01139, 2,4-DDD, Feb 2002

Machine-extracted title · confidence 92%

Gas chromatography-mass spectrometry analysis report for sample AE01139 detecting surrogate 2,4-DDD at 76 ug with MDL of 5.0, analyzed on 02/27/2002.

NYC-WTC_000003483–000003502

Folder label: “GCMS X 1/20/02 A 2/25/02

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NYC 9/11 Public Portal Document

Data File : C:\MSDCHEM\l\5973N\02FEB2 5\0113 9 .D Vial: 5 Acq On : 25 Feb 2002 2:32 pm Operator: ‘ Sample : 508 scan Inst : Instrumen Mise : February 25, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P

Method : C:\MSDCHEM\1\METHODS\METHODS\HP022102.M (RTE Integrator) Title : 508 scan method Smoothing : OFF Filtering: 5 Sampling : 2 Min Area: 100 Area counts Start Thrs: 0.2 Max Peaks: 20 Stop Thrs : 0 Peak Location: TOP

If leading or trailing edge < 100 prefer < Baseline drop else tangent > Peak separation: 5

Signal : TIC

peak R.T. first max last PK peak corr. corr. % of # min scan scan scan TY height area % max. total

1 3.475 7 9 13 rBV 32571 46697 0.47% 0.091% 2 3.611 17 21 25 rBV 20773 33514 0.34% 0.065% 3 3.758 31 34 43 rBV2 6612 17276 0.17% 0.034% 4 3.916 43 48 53 rW 13258 24448 0.25% 0.047% 5 4.367 85 88 95 rVB 14825 27437 0.28% 0.053%

6 6.004 225 233 239 rBV2 48926 165734 1.66% 0.322% 7 6.580 281 284 287 rBV 5912 12640 0.13% 0.025% 8 9.718 557 562 571 rW 2871589 6277481 63.03% 12.181% 9 9.899 575 578 591 rW2 6784 36344 0.36% 0.071% 10 12.450 793 804 809 rBV 1890 12940 0.13% 0.025%

11 12.540 809 812 817 rVB 29730 50099 0.50% 0.097% 12 13.195 865 870 875 rBV 4680046 8884348 89.20% 17.239% 13 13.376 883 886 893 rVB 7781 17008 0.17% 0.033% 14 18.332 1319 1325 1331 rBV 4823733 9431260 94.69% 18.300% 15 22.283 1671 1675 1681 rW 24076 45517 0.46% 0.088%

16 22.633 1701 1706 1711 rBV2 4799201 9959642 100.00% 19.325% 17 24.845 1893 1902 1911 rBV 9774 21589 0.22% 0.042% 18 27.724 2153 2157 2163 rVB 576662 986415 9.90% 1.914% 19 30.490 2397 2402 2447 rVB 3652088 8994078 90.31% 17.452% 20 34.407 2743 2749 2783 rBV 2346472 6491909 65.18% 12.597%

Sum of corrected areas: 51536376

31139.D HP022102.M Tue Feb 26 08:30:09 2002 Page 1

NYC-WTC_000003487

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NYC-WTC_000003487Source: NYC Law Department, mirrored locally

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GCMS analysis results, Feb 27 2002 · Box DEP Box 12

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Gas chromatography-mass spectrometry results for sample AE01138 identifying unknown compounds and surrogates on February 27, 2002.

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