NYC-WTC_000234102

NYC 9/11 Public Portal Document

PSC Analytical Services Laboratory Method Blanks

Component RDL Units BLANK RDL Units Batch Code: 1030NZ01 TEF t of Isomer; MR 2,3,7,8-CI4DBF 0.27 pg 0.55 0.055 99% 0.12 pg 2,3,7,8-CI4DBD 0.27 <0.27 <0.27 112% 0.26 1,2,3,7,8-CI5DBF 0.62 <0.62 <0.031 111% 0.23 2,3,4,7,8-CI5DBF 0.59 <0.59 <0.30 99% 0.47 1,2,3,7,8-CI5DBD 0.53 <0.53 <0.27 98% 0.32 1,2,3,4,7,8-CI6DBF 0.45 0.50 0.050 109% 0.21 1,2,3,6,7,8-CI6DBF 0.42 <0.42 <0.042 102% 0.20 2,3,4,6,7,8-CI6DBF 0.49 <0.49 <0.049 110% 0.59 1,2,3,7,8,9-CI6DBF 0.53 <0.53 <0.053 112% 0.25 1,2,3,4,7,8-CI6DBD 0.43 <0.43 <0.043 105% 0.39 1,2,3,6,7,8-CI6DBD 0.40 <0.40 <0.040 105% 0.36 1,2,3,7,8,9-CI6DBD 0.39 0.45 0.045 100% 0.56 1,2,3,4,6,7,8-CI7DBF 0.99 <0.99 <0.0099 105% 0.97 1,2,3,4,7,8,9-CI7DBF 0.62 <0.62 <0.0062 96% 0.53 1,2,3,4,6,7,8-CI7DBD 0.58 <0.58 <0.0058 104% 0.27 1,2,3,4,6,7,8,9-CI8DBF 0.74 2.0 0.0020 97% 0.69 1,2,3,4,6,7,8,9-CI8DBD 3.7 <3.7 <0.0037 102% 0.29

FET pg 0.15 pg FET MAX <1.3

ET4CDF 0.27 pg 0.55 1 99% 0.14 pg EP5CDF 0.62 <0.62 0 105% 0.23 EH6CDF 0.45 0.50 1 108% 0.21 EH7CDF 0.39 <0.39 0 101% 0.49 OCDF 0.74 2.0 1 97% 0.69 ET4CDD 0.27 <0.27 0 112% 0.26 EP5CDD 0.53 <0.53 0 98% 0.32 EH6CDD 0.40 0.45 1 103% 0.36 EH7CDD 0.47 <0.47 0 104% 0.27 OCDD 3.7 <3.7 0 102% 0.29 Surrogate Recoveries % % 2,3,7,8-T4CDF-13C12 93 2,3,7,8-T4CDD-13C12 88 1,2,3,7,8-P5CDF-13C12 78 1,2,3,7,8-P5CDD-13C12 74 1,2,3,6,7,8-H6CDF-13C12 90 1,2,3,6,7,8-H6CDD-13C12 90 1,2,3,4,6,7,8-H7CDF-13C12 78 1,2,3,4,6,7,8-H7CDD-13C12 87 OCDD-13C12 65

Certificate No:2J0575 file# =DEP00206977.XLS nh Page 1 of Revision No. 0

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