NYC-WTC_000232716

NYC 9/11 Public Portal Document

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R02100403 R02100403 R02100403 R02100403 R02100403 14A 14A Client ID: 15A 15A 15A 039119 02 039119 02 Lab No.: 039^20 02 039120 02 039120 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 0.70 0.38 pg 2.1 0.21 3.4 2,3,7,8-CI4DBD 2.7 0.60 <0.60 <0.60 0.50 1,2,3,7,8-CI5DBF <0.039 0.91 0.94 0.047 0.48 2,3,4,7,8-CI5DBF <0.83 0.87 <0.87 <0.44 0.76 1.2.3.7.8-CI5DBD <0.92 1.1 <1.1 <0.56 0.91 1,2,3,4,7,8-CI6DBF <0.082 1.1 <1.1 <0.11 0.57 1,2,3,6,7,8-CI6DBF <0.076 1.0 <1.0 <0.10 0.64 2,3,4,6,7,8-CI6DBF <0.089 1.2 <1.2 <0.12 0.34 1,2,3,7,8,9-CI6DBF <0.037 1.3 <1.3 <0.13 0.37 1,2,3,4,7,8-CI6DBD <0.20 1.5 <1.5 <0.15 0.97 1,2,3,6,7,8-CI6DBD <0.18 1.4 <1.4 <0.14 0.90 1,2,3,7,8,9-CI6DBD <0.18 1.3 <1.3 <0.13 0.88 1,2,3,4,6,7,8-CI7DBF <1.1 69 <69 <0.69 30 1,2,3,4,7,8,9-CI7DBF <1.3 79 <79 <0.79 3.9 1,2,3,4,6,7,8-CI7DBD <0.061 2.1 <2.1 <0.021 3.0 1,2,3,4,6,7,8,9-CI8DBF <0.011 3.5 <3.5 <0.0035 3.8 1,2,3,4,6,7,8,9-CI8DBD <0.039 5.6 <5.6 <0.0056 11

TEF 3.4 pg 0.25 EPA Requested TEQs 6.00 < 2.23 MAX TEF 8.6 4.2 Units Ng/m^ 0.60 < 0.22

ET4CDF 9 0.38 pg 3.2 3 0.31 ZP5CDF 2 0.91 0.94 1 0.48 ZH6CDF 0 1.2 <1.2 0 0.62 ZH7CDF 0 74 <74 0 32 OCDF 0 3.5 <3.5 0 3.8 ZT4CDD 5 0.6 3.9 2 0.49 ZP5CDD 1 1.1 <1.1 0 1.1 ZH6CDD 1 1.4 <1.4 0 0.90 ZH7CDD 0 2.1 <2.1 0 1.6 OCDD 0 5.6 <5.6 0 11 Surrogate Recoveries % 2,3,7,8-T4CDF-13C12 91 2,3,7,8-T4CDD-13C12 75 1,2,3,7,8-P5CDF-13C12 63 1,2,3,7,8-P5CDD-13C12 45 1,2,3,6,7,8-H6CDF-13C12 103 1,2,3,6,7,8-H6CDD-13C12 81 1,2,3,4,6,7,8-H7CDF-13C12 82 1,2,3,4,6,7,8-H7CDD-13C12 82

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CONFIDENTIAL, CITY_21MC100_013182142 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000232730