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VOC analysis results, sample AE10240, May 3, 2002

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Laboratory report for volatile organic compounds in sample AE10240 dated May 3, 2002.

NYC-WTC_000082778–000082898

Folder label: “524 5/3/02 - 5/4/02

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NYC 9/11 Public Portal Document Library Search Compound Report Data File C:\MSDCHEM\l\5973N\02MAY03\10244.D Vial: 14 Acq On 3 May 2002 8:15 pm Operator: Sample nyc Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSG.P

Quant Method : C:\MSDCHEM\1...\W050302 .M (RTE Integrator) Title : VOC method 8260 Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 2 Benzene, 1,2-difluoro- Concentration Rank 3 R.T. EstConc Area Relative to ISTD R.T. 18.48 0.06 ug/L 28279 1,4-Difluorobenzene 17.71

Hit# ..of 5 Tentative ID MW MolForm CAS# Qual ----------------------------------------------------- 1 Benzene, 1,‘2-difluoro- 114 C6H4F2 000367-11-3 90 2 Benzene, 1,4-difluoro- 114 C6H4F2 000540-36-3 87 3 Benzene, 1,2-difluoro- $$ Benzen... 114 C6H4F2 000367-11-3 87 4 Benzene, 1,3-dif luoro-______________ 114 C6H4F2 000372-18-9 86 Abundance . x Scan 1483 (18.475 min): 10244.D (-) m/z 114.10 100.00% 1 4

5000

63 ‘ ' I ' ' ' ' I ' ' 88 I ' ' 44 : 50 57 , 70 75 81 I 94 18.20 18.40 18.60 18.80 0 '"l|.... . m/z62.95 20.46% TTfe-> 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110115 120 Abundance #14687: Benzene, 1,2-difluoro- 1 4

5000 18.20 18.40 18.60 18.80 63 88 m/z 87?^ 15.45% 50 57 I 75 I 94 37 4m-|4|.|.|tlll| ot. T^ .........'I....... . t-tR v ''' I'" ■nfe-> 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105110115 120 Abundance #14694: Benzene, 1,4-difluoro- 1 4 A 18.20 18.40 18.60 18.80 5000 m/z88.10 15.22% 63 88 50 57 75 81 1 94 0 4^ +r ...... . ............. I........ ............................. . ....... 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105110115 120 Abundance #14688: Benzene, 1,2-difluoro- $$ Benzene, o-difluoro- $$ ... J ' I ' ' ' ' -I '-' 1 4 18.20 18.40 18.60 18.80 m/z57.10 7.76% ssa 63

HU 88

49 68 75 81 94 0^ ■VT . .......... I..... l""l '■'h'>'l|-............I....... Tl/Z-> 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110115 120 18.20 18.40 18.60 18.80

L0244.D W050302.M Mon May 06 11:42:51 2002 Page 4

NYC-WTC_000082829

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NYC-WTC_000082829Source: NYC Law Department, mirrored locally

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