NYC-WTC_000232716

NYC 9/11 Public Portal Document

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R02100403 R02100403 R02100403 R02100403 R02100403 05A OSA Client ID: 06A 06A 06A 039110 02 039110 02 Lab No.: 02 039111 02 039111 02 02/10/09 02/10/09 Date Sampled: 02/10/09 02/10/09 02/10/09 Matrix:

Component TEF It of Isomers RDL Units TEF # of Isomers RDL

Dioxins and furans

2,3,7,8-CI4DBF <0.058 1.4 pg <1.4 <0.14 0.65 2,3,7,8-CI4DBD 0.38 0.94 <0.94 <0.94 0.54 1,2,3,7,8-CI5DBF 0.028 1.5 <1.5 <0.073 0.41 2,3,4,7,8-CI5DBF <0.24 1.4 <1.4 <0.70 0.39 1,2,3,7,8-CI5DBD <0.23 1.4 <1.4 <0.68 0.89 1,2,3,4,7,8-CI6DBF <0.072 2.5 <2.5 <0.25 0.51 1,2,3,6,7,8-CI6DBF <0.030 2.3 <2.3 <0.23 0.47 2,3,4,6,7,8-CI6DBF <0.045 2.7 <2.7 <0.27 0.55 1,2,3,7,8,9-CI6DBF <0.062 3.0 <3.0 <0.30 0.60 1,2,3,4,7,8-CI6DBD <0.060 3.9 <3.9 <0.39 0.85 1,2,3,6,7,8-CI6DBD <0.055 3.6 <3.6 <0.36 0.79 1,2,3,7,8,9-CI6DBD <0.054 3.5 <3.5 <0.35 0.77 1,2,3,4,6,7,8-CI7DBF <0.018 96 <96 <0.96 13 1,2,3,4,7,8,9-CI7DBF <0.012 110 <110 <1.1 15 1,2,3,4,6,7,8-CI7DBD <0.0074 3.7 <3.7 <0.037 0.69 1,2,3,4,6,7,8,9-CI8DBF 0.0012 3.0 <3.0 <0.0030 6.7 1,2,3,4,6,7,8,9-CI8DBD <0.0031 5.9 <5.9 <0.0060 1.3

TEF 0.41 pg 0 EPA Requested TEQs 0.91 < 3.40 MAX TEF 1.4 6.8 Units Ng/m^ 0.09 < 0.34

ET4CDF 0 0.76 pg <0.76 0 0.65 ZP5CDF 1 1.5 <1.5 0 0.41 ZH6CDF 0 2.7 <2.7 0 0.55 ZH7CDF 0 100 <100 0 14 OCDF 1 3.0 <3.0 0 6.7 ZT4CDD 1 0.94 <0.94 0 0.54 ZP5CDD 0 1.4 <1.4 0 0.89 ZH6CDD 0 3.6 <3.6 0 0.79 ZH7CDD 0 3.7 <3.7 0 0.69 OCDD 0 6.0 <6.0 0 1.3 Surrogate Recoveries % 2,3,7,8-T4CDF-13C12 108 2,3,7,8-T4CDD-13C12 90 1,2,3,7,8-P5CDF-13C12 70 1,2,3,7,8-P5CDD-13C12 60 1,2,3,6,7,8-H6CDF-13C12 66 1,2,3,6,7,8-H6CDD-13C12 74 1,2,3,4,6,7,8-H7CDF-13C12 48 1,2,3,4,6,7,8-H7CDD-13C12 86

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CONFIDENTIAL, CITY_21MC100_013182136 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000232724