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TCDD/TCDF analysis results, Jan 2002

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Laboratory report detailing TCDD and TCDF analysis results for a wipe sample from the NYC WTC area.

NYC-WTC_000186298–000186305
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NYC 9/11 Public Portal Document

Initial ....Date.. .

Data Review By: channel specific noise levels computed from 'ML' heights.

. Total Area for each peak with an ion abundance ratio outside ratio limits has been recalculated according to method requirements.

Page No. 1 Listing of p020051B.dbf 01/10/2002 Matched GC Peaks / Ratio / Ret. Time

Compound/ OC.Log Omit Why ..RT. OK Ratio Total.Area/Ht Area/Ht.Peakl Area/Ht.P«ak2 Rel.RT Compound.Name.. ID.. Flags.

TCDF 0.65-0.89 0.789-1.101 308-306 DC ML Height 0.18 0.07 0.11 18:29 0.85 12.40 5.71 6.69 0.796 19:00 RO 0.29 0.64 0.26 0.96 0.818 J 19:0-; RO 1.21 2.02 1.38 1.14 0.823 J 19:20 0.69 1.00 0.41 0.59 0.833 J 19:30 0.73 69.53 29.03 39.50 0.840 19:38 0.71 47.68 19.75 27.93 0.846 19:46 0.75 155.96 66.95 89.01 0.851 19:51 0.77 46.42 20.20 26.22 0.859 20:13 0.77 60.69 26.44 34.25 0.871 20:23 0.78 157.55 67.14 90.41 0.878 20:32 0.78 61.75 34.63 46.92 0.884 20:82 0.73 236.90 100.31 136.59 0.892 20:52 0.82 135.40 60.83 74.57 0.899 21:15 0.78 569.92 243.02 326.90 0.915 21:31 BO 1,68 1.63 1.55 0.92 0.927 J 21:82 0.79 133.04 5B.91 74.13 0.935 21:58 0.76 147.09 63.53 83.56 0.986 22:13 0.76 111.07 47.80 63.27 0.957 22:26 0.88 56.98 26.02 30.96 0.966 22:38 0.76 252.85 109.13 183.72 0,975 22:88 RO 0.91 40.34 20.74 22,79 0.982 23:06 0.75 135.14 57.93 77.21 0.995 23:14 0.77 73.95 32.20 81.75 1.001 2378-TCDF AN 23:26 0.76 178.24 77.14 101.10 1.009 23:44 0.76 198.12 85.78 112.38 1.022 " 23:52 0.75 141.75 60.71 81.04 1.028 24:06 0.83 22.15 10.03 13.12 1.038 24:21 BO 2.75 0.2B 0.44 0.16 1.089 J 24:25 RO 2.18 0.67 0.83 0.38 1.052 J 24:41 0.76 96.79 41.BB 54.91 1.063 28:51 0.81 39.94 17.B4 22.10 1.070 25:02 0.66 5.16 2.05 3.11 1.078 25:19 0.78 47.7B 20.91 26.87 1.090 25:31 0.73 4,73 1.99 2.74 1.099 DC WH 25:86 0.76 3B.66 1.110 304-306 38 Peaks 3.264.56

13C12-TCDF 0.65-0.89 0.957-1.043 116-318 DC NL Height 0.20 O.OB 0.12 DC WL 18:38 RO 0.15 0.28 O.BOO DC WL 18:49 0.71 18.27 0.810 DC WL 20:11 0.79 0.52 0.869

riangle Laboratories, Inc.® 801 Capitola Drive • Durham, North Carolina 27713 Printed: 06:51 01/1^2^^ Phone: (919) 544'5729 • Fax; (919) 544-5491

CITY_21MC100_003110303

NYC-WTC_000186299

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NYC-WTC_000186299Source: NYC Law Department, mirrored locally

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