GCMS blank analysis results, sample AE03017, March 2002

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

Data File C:\MSDCHEM\l\DATA\022802\212REFB.D vial: 4 Acq On 1 Mar 2002 2:51 pm Operator: McLean Sample 2/12/02 GC SCAN Inst Instrumen Mise Multiplr: 1.00 MS Integration Params: BENZO.P Quant Time: Mar 04 05:54:59 2002 Quant Results File: 5080202.RES

Quant Method : C:\MSDCHEM\l\5973N\5080202.M (RTE Integrator) Title : Quantitation For Method 508gcscan Last Update : Mon Feb 25 19:17:14 2002 Response via : Initial Calibration DataAcq Meth : 508SCAN

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

1) 1,4-Dichlorobenzene-d4 9.58 150 2889736 20.00 ug/L 0.00 10) Naphthalene-d8 13.06 136 7435037 20.00 ug/L 0.00 17) Acenaphthene-dlO 18.18 164 4108270 20.00 ug/L 0.00 29) Phenanthrene-diO 22.54 188 6383859 20.00 ug/L 0.00 38) Chrysene-dl2 30.36 240 5891841 20.00 ug/L 0.00 44) Perylene-dl2 34.23 264 4060433 20.00 ug/L 0.00

System Monitoring Compounds 37) 2,4-ddd surr 27.46 235 214857 2.12 ug/L 0.00 Spiked Amount 5.000 Recovery = 42.40%

Target Compounds Qvalue 2) N-nitroso-dimethyl amine 3.62 74 140165 1.60 ug/L 100 3) bis(2-chloroethyl) ether 9.01 93 406364 2.97 ug/L 82 4) 1,3 - Dichlorobenze 9.41 146 307474 2.38 ug/L 97 5) 1,4 - Dichlorobenzene 9.62 146 313379 2.44 ug/L 98 6) 1,2 - Dichlorobenzene 10.00 146 315565 2.65 ug/L 99 7) 2,2 ‘ - oxybis (l-Chloropr 10.46 45 968756 2.93 ug/L 100 8) N-Nitroso-di-n-propylamine 10.79 70 322282 3.07 ug/L 97 9) Hexachloroethane 10.89 117 104240 2.01 ug/L 99 11) Nitrobenzene 11.13 77 419458 2.42 ug/L 100 12) Isophorone 11.84 82 920874 2.91 ug/L 99 13) bis(2-Chloroethoxy) methan 12.59 93 531433 2.77 ug/L 99 14) 1,2,4-Trichlorobenzene 12.94 180 271410 2.57 ug/L 97 15) Naphthalene 13.11 128 1126520 2.88 ug/L 99 16) Hexachlorobutadiene 13.56 225 108543 1.85 ug/L 97 18) Hexachlorocyclopentadiene 15.64 237 11611 0.29 ug/L 93 19) 2-chloronaphthalene 16.54 162 634967 2.70 ug/L 99 20) Dimethylphthalate 17.62 163 918527 3.28 ug/L 99 21) 2,6-Dinitrotoluene 17.73 165 150116 2.63 ug/L 97 22) Acenaphthylene 17.72 152 995972 3.09 ug/L 98 2 3) Acenaphthene 18.26 153 696256 3.11 ug/L 100 24) 2,4-Dinitrotoluene 18.88 165 196210 2.39 ug/L 99 25) Diethylphthalate 19.75 149 869898 3.63 ug/L 98 26) 4-Chlorophenyl-phenyl ethe 19.92 204 417583 3.35 ug/L 97 27) Fluorene 19.78 166 893010 3.49 ug/L 97 28) Azobenzen/ 1,2-Diphenylhyd 20.36 77 1054505 2.88 ug/L 99 30) N-Nitrosodiphenylamine 20.29 169 522327 3.07 ug/L 99 31) 4-Bromophenyl-phenyl ether 21.34 248 236691 3.51 ug/L 96 32) Hexachlorobenzene 21.37 284 251559 3.63 ug/L 99 33) Phenanthrene 22.60 178 1298065 3.51 ug/L 99 34) Anthracene 22.73 178 1191297 3.35 ug/L 100 35) Di-n-butylphthalate 24.67 149 1519309 3.55 ug/L 99 36) Fluoranthene 26.09 202 1472999 3.46 ug/L 99 39) Pyrene 26.71 202 1552355 3.24 ug/L 97 40) Butylbenzylphthalate 29.07 149 563017 2.75 ug/L 93 41) Benzo (a) antracene 30.31 228 1220800 3.16 ug/L 99 42) Bis (2-ethylhexyl) phthala 30.94 149 848717 3.18 ug/L 97 43) Chrysene 30.41 228 1305813 3.47 ug/L 100 45) Di-n-Octylphthalate 32.78 149 1160662 2.79 ug/L 99 46) Benzo (b) fluoranthene 33.26 252 1104363 3.25 ug/L 98

(#) = qualifier out of range (m) = manual integration 212REFB.D 5080202.M Mon Mar 04 05:55:11 2002 Page 1

NYC-WTC_000005905