GCMS reference analysis results for sample AE09329, May 7 2002

NYC 9/11 Public Portal Document

* Data File C:\MSDCHEM\1\DATA\050202\042 9REFB.D Vial: 8 Acq On 2 May 2002 5:17 pm Operator: Mclean Sample Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: EVENTS.E Quant Time: May 06 10:59:50 2002 Quant Results File: 050102.RES

Quant Method : C:\MSDCHEM\l\METHQDS\050102.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Last Update : Thu May 02 12:47:52 2002 Response via : Initial Calibration DataAcq Meth : 508SCAN

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

1) 1,4-Dichlorobenzene-d4 9.94 152 4965840 40.00 ug/L 0.01 10) Napthalene-d8 13.44 136 19946411 40.00 ug/L 0.00 17) Acenapthalene-dlO 18.58 164 10727773 40.00 ug/L 0.01 29) Phenanthranene-dlO 22.96 188 15891036 40.00 ug/L 0.00 37) Chrysene-dl2 30.82 240 12526555 40.00 ug/L 0.01 43) Perylene-dl2 34.72 264 9427735 40.00 ug/L 0.01

System Monitoring Compounds 2 7) TCMX 20.54 207 607683 7.18 ug/L 0.00 Spiked Amount 10.000 Recovery = 71.80% 50) 2,4-ddd 0.00 235 0 0.00 ug/L Spiked Amount 10.000 Recovery = 0.00%

Target Compounds Qvalue 2) n-nitros-dimethyl amine 3.85 74 979087m 9.62 ug/L 3) bis(2-Chloroethyl)ether 9.35 93 3174335 16.34 ug/L 88 4) 1,3-Dichlorobenzene 9.77 146 2733196 13.82 ug/L 98 5) 1,4-Dichlorobenzene 9.98 146 2848882 14.01 ug/L 99 6) 1,2-Dichlorobenzene 10.36 146 2814246 15.56 ug/1 99 7) 2,2‘oxybis(1-Chloropropane 10.78 45 5003725m 16.71 ug/L 8) N-nitroso-di-propylamine 11.14 70 2341687 17.00 ug/L 95 9) Hexachloroethane 11.26 117 878285 11.71 ug/L 94 11) Nitrobenzene 11.50 77 3136312 16.25 ug/L 96 12) Isophorone 12.21 82 6706236 19.29 ug/L 98 13) bis(2-Chloroethoxy) methan 12.95 93 3852565 16.73 ug/L 99 14) 1,2,4-Trichlorobenzene 13.31 180 2146971 14.69 ug/L 99 15) Napthalene 13.49 128 9218440 17.25 ug/L 98 16) Hexachlorobutadiene 13.94 225 914275 13.35 ug/L 97 18) 2-Chloronaphthalene 16.93 162 5012917 18.32 ug/L 99 19) Dimethylphthalate 18.01 163 6021754 17.17 ug/L 100 20) 2,6-Dinitrotoluene 18.12 165 954046 17.31 ug/L # 87 21) Acenapthylene 18.13 152 7982375 15.78 ug/L 97 22) Acenapthalene 18.66 153 5231149 17.93 ug/L 97 23) 2,4-Dinitrotoluene 19.28 165 1231876 15.79 ug/L 96 24) Diethylphthalate 20.15 149 5918793 19.41 ug/L 98 25) 4-Chlorophenyl-phenylether 20.33 204 2733232 16.96 ug/L 99 26) Fluorene 20.20 166 6183878 18.53 ug/L 97 28) Azobenzene 20.79 77 6646050 16.52 ug/L 95 30) Nnitrosodiphenylamine 20.70 169 3549193 18.20 ug/L 94 31) 4-Bromophenyl-phenylether 21.77 248 1391481 17.73 ug/L 96 32) Hexachlorobenzene 21.80 284 1345624 17.91 ug/L 99 33) Phenanthrene 23.02 178 85330'77 17.80 ug/L 97

(#) = qualifier out of range (m) = manual integration 0429REFB.D 050102.M Tue May 07 11:44:16 2002 Page 1

NYC-WTC_000044578