GCMS blank analysis results for sample AE11424, May 2002

NYC 9/11 Public Portal Document quantitation Report (QT Reviewed.)

Data File : C:\MSDCHEM\1\DATA\020521\0521C1.D Vial: 2 Acq On : 21 May 2002 8:58 am _ . Operator: Nefliu Sample : ccv MS Integration Params: rteint.e Inst Multiplr: : Instrumen 1.00

Quant Time: May 21 09:59:10 2002 Quant Results File: SCAN020521.RE

Quant Method : C:\MSDCHEM\1\METHODS\SCAN020521.M (RTE Integrator) Title : Method 508 GC/MS Scan Last Update : Tue May 21 08:15:50 2002 Response via : Initial Calibration DataAcq Meth : 508SCAN1

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

1) 1,4-Dichlorobenzene-d4 11.37 152 439587 40.00 ug/1 -0.02 10) Naphthalene-d8 16.53 136 1640845 40.00 ug/1 -0.04 17) Acenaphthene-diO 24.46 164 868470 40.00 ug/1 -0.02 30) Phenanthrene-diO 31.72 188 1446496 40.00 ug/1 -0.02 38) Chrysene-dl2 39.93 240 1113524 40.00 ug/1 -0.05 44) Perylene-dl2 43.15 264 669306 40.00 ug/1 -0.03

System Monitoring Compounds 27) TCMX 27.56 207 281435 40.40 ug/1 -0.04 Spiked Amount 40.000 Recovery = 101.00%

Target Compounds 2) N-nitrosodimethylamine 4.02 74 49763m 13 7.30 ug/1 Qvalue

3) bis(2-Chloroethyl)ether 10.65 93 172757 10.13 ug/1 95 4) 1.3-Dichlorbenzene 11.11 146 147908 10.24 ug/1 97 5) 1,4-Dichlorobenzene 11.43 146 163069 10.33 ug/1 98 6) 1,2-Dichlorobenzene 11.95 146 140259 10.20 ug/1 98 7) 2,2'oxybi s(1-Chloropropane 12.73 45 272983m 10.10 ug/1 8) N-Nitroso-di-n-propylamine 13.25 43 121209 9.86 ug/1 96 9) Hexachloroethane 13.26 119 71304 10.32 ug/1 94 11) Nitrobenzene 13.66 77 189495 9.32 ug/1 95 12) Isophorone 14.78 82 341876 9.81 ug/1 99 13) bis(2-Chloroethoxy) methan 16.02 93 204110 9.89 ug/1 98 14) 1,2,4-Trichlorobenzene 16.38 180 126051 10.29 ug/1 96 15) Naphthalene 16.61 128 430572 10.26 ug/1 99 16) Hexachlorobutadiene 17.39 225 73882 10.23 ug/1 90 18) 2-Chloronaphthalene 21.93 162 207077 9.76 ug/1 97 19) Acenaphthylene 23.74 152 400088 9.84 ug/1 98 20) Dimethyl phthalate 23.83 163 278457 10.08 ug/1 97 21) 2,6-Dinitrotoluene 23.94 77 26508m 10.45 ug/1 22) Acenaphthene 24.59 153 240212 9.98 ug/1 96 23) 2,4-Dinitrotoluene 25.73 165 47750m 7.46 ug/1 24) Fluorene 27.00 166 275633 9.95 ug/1 100 25) Diethyl phthalate 27.22 149 280243 10.03 ug/1 97 26) 4-Chlorophenyl-phenylether 27.33 204 138914 10.07 ug/1 93 28) N-Nitrosodiphenylamine 27.93 168 104084 11.23 ug/1 98 29) Azobenzene 28.02 77 416887 9.82 ug/1 98 31) Hexachlorobenzene 29.59 284 81114 10.39 ug/1 98 32) 4-Bromophenyl-phenylether 29.71 248 77425 9.99 ug/1 93 3 3) Phenanthrene 31.81 178 386447 10.27 ug/1 97 34) Anthracene 32.03 178 383611 10.12 ug/1 98 35) Di-n-butylphthalate 34.80 149 444449 9.54 ug/1 100

(#) = qualifier out of range (m) = manual integration 0521C1.D SCAN020521.M Tue May 21 10:00:42 2002 Page 1

NYC-WTC_000022505