GCMS blank results for volatile organics, April 2002

NYC 9/11 Public Portal Document

138 28.526 4325 4331 4336 W 4 3506 93165 0.05% 0.019% 139 28.567 4336 4338 4342 W 2 3114 49620 0.02% 0.010% 140 28.626 4346 4348 4351 W 2982 31208 0.02% 0.006%

141 28.691 4351 4359 4361 W 3950 78396 0.04% 0.016% 142 28.879 4383 4391 4396 W 7 7313 178191 0.09% 0.036% 143 29.126 4425 4433 4442 W 6 7417 240477 0.12% 0.048% 144 29.190 4442 4444 4445 W 2 3187 30086 0.01% 0.006% 145 29.208 4445 4447 4450 W 2 3605 58085 0.03% 0.012%

146 29.284 4454 4460 4466 W 5 4141 126245 0.06% 0.025% 147 29.443 4483 4487 4492 W 3 2466 49064 0.02% 0.010% 148 29.490 4492 4495 4497 W 2 2771 33123 0.02% 0.007% 149 29.513 4497 4499 4502 W 3 3053 37883 0.02% 0.008% 150 29.578 4502 4510 4516 W 5 21820 553855 0.28% 0.111%

151 29.619 4516 4517 4525 W 2 7150 170039 0.08% 0.034% 152 29.678 4525 4527 4529 W 3 4387 46227 0.02% 0.009% 153 29.813 4544 4550 4555 W 4 4544 135892 0.07% 0.027% 154 29.907 4555 4566 4569 W 6 3955 130386 0.06% 0.026% 155 29.948 4569 4573 4576 W 2 3472 76430 0.04% 0.015%

156 30.054 4576 4591 4660 W 7736938 201207227 100.00% 40.450% 157 30.489 4660 4665 4669 W 6 18237 479837 0.24% 0.096% 158 30.524 4669 4671 4675 W 4 18308 416107 0.21% 0.084% 159 30.577 4675 4680 4686 W 5 21504 734903 0.37% 0.148% 160 30.624 4686 4688 4691 W 3 17496 273161 0.14% 0.055%

161 30.694 4691 4700 4710 W 5 23745 1221118 0.61% 0.245% 162 30.788 4710 4716 4722 W 4 21125 705682 0.35% 0.142% 163 30.882 4722 4732 4759 W 2 1799753 40710654 20.23% 8.184% 164 31.076 4762 4765 4767 W 4 14024 233238 0.12% 0.047% 165 31.176 4776 4782 4787 W 10 16243 543989 0.27% 0.109%

166 31.382 4815 4817 4820 W 6040 85980 0.04% 0.017% 167 31.464 4820 4831 4843 W 4 20955 953430 0.47% 0.192% 168 31.546 4843 4845 4853 W 5 12019 291937 0.15% 0.059% 169 31.846 4894 4896 4897 W 3618 31921 0.02% 0.006% 170 31.864 4897 4899 4906 W 3560 77405 0.04% 0.016%

171 31.928 4906 4910 4912 W 3397 56270 0.03% 0.011% 172 31.952 4912 4914 4917 W 2 3166 51756 0.03% 0.010% 173 31.981 4917 4919 4922 W 3 3687 54032 0.03% 0.011% 174 32.134 4941 4945 4953 W 7 . 4038 118053 0.06% 0.024% 175 32.692 5031 5040 5042 W 7 3264 95871 0.05% 0.019%

176 33.068 5098 5104 5109 W 5 3745 101730 0.05% 0.020% 177 33.156 5112 5119 5124 W 5 4453 136183 0.07% 0.027% 178 33.209 5124 5128 5130 W 4 5260 84513 0.04% 0.017% 179 33.227 5130 5131 5140 W 4 5164 162466 0.08% 0.033% 180 33.321 5140 5147 5152 W 4 7723 237199 0.12% 0.048%

181 33.362 5152 5154 5157 W 2 5858 92036 0.05% 0.019% 182 33.432 5157 5166 5169 W 5 13165 380874 0.19% 0.077% 183 33.456 5169 5170 5172 W 2 10491 106563 0.05% 0.021% 184 33.474 5172 5173 5180 W 4 9272 243045 0.12% 0.049% 185 33.526 5180 5182 5199 W 8 8919 476042 0.24% 0.096%

186 33.732 5213 5217 5229 W 10 7956 385793 0.19% 0.078% 187 33.814 5229 5231 5232 W 2 7274 87772 0.04% 0.018%

0409LB.D 041702SCAN.M Thu Apr 18 09:41:56 2002 Page 4

NYC-WTC_000048231