NYC-WTC_000232716

NYC 9/11 Public Portal Document

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R02100403 R02100403 R02100403 R02100403 R02100403 OSA OSA Client ID: 09A 09A 09A 039113 02 039113 02 Lab No.: 039114 02 039114 02 039114 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 <0.17 0.48 pg 1.6 0.16 1.6 2,3,7,8-CI4DBD <0.57 0.79 <0.79 <0.79 1.1 1,2,3,7,8-CI5DBF <0.037 0.78 <0.78 <0.039 1.7 2,3,4,7,8-CI5DBF <0.36 0.60 <0.60 <0.30 1.6 1.2.3.7.8-CI5DBD <0.33 0.81 <0.81 <0.40 1.5 1,2,3,4,7,8-CI6DBF <0.10 0.84 <0.84 <0.084 1.3 1,2,3,6,7,8-CI6DBF <0.097 0.78 <0.78 <0.078 1.2 2,3,4,6,7,8-CI6DBF <0.11 0.92 <0.92 <0.092 1.4 1,2,3,7,8,9-CI6DBF <0.12 0.99 <0.99 <0.099 1.6 1,2,3,4,7,8-CI6DBD <0.082 0.66 <0.66 <0.066 2.3 1,2,3,6,7,8-CI6DBD <0.076 0.61 <0.61 <0.061 2.2 1,2,3,7,8,9-CI6DBD <0.074 0.60 <0.60 <0.060 2.1 1,2,3,4,6,7,8-CI7DBF <0.11 56 <56 <0.56 130 1,2,3,4,7,8,9-CI7DBF <0.13 2.4 <2.4 <0.024 160 1,2,3,4,6,7,8-CI7DBD 0.020 0.72 <0.72 <0.0072 6.4 1,2,3,4,6,7,8,9-CI8DBF 0.0016 1.3 <1.3 <0.0013 4.3 1,2,3,4,6,7,8,9-CI8DBD 0.021 3.3 <3.3 <0.0033 2.2

TEF 0.043 pg 0.16 EPA Requested TEQs 1.22 < 1.48 MAX TEF 2.4 2.8 Units Ng/m^ 0.12 < 0.15

ET4CDF 2 0.48 pg 1.6 1 0.46 ZP5CDF 0 0.63 <0.63 0 1.7 ZH6CDF 0 0.92 <0.92 0 1.3 ZH7CDF 0 60 <60 0 150 OCDF 1 1.3 <1.3 0 4.3 ZT4CDD 2 0.79 <0.79 0 1.1 ZP5CDD 0 0.81 <0.81 0 1.5 ZH6CDD 0 0.61 <0.61 0 2.2 ZH7CDD 2 0.59 <0.59 0 6.4 OCDD 1 3.3 <3.3 0 2.2 Surrogate Recoveries % 2,3,7,8-T4CDF-13C12 96 2,3,7,8-T4CDD-13C12 76 1,2,3,7,8-P5CDF-13C12 84 1,2,3,7,8-P5CDD-13C12 76 1,2,3,6,7,8-H6CDF-13C12 52 1,2,3,6,7,8-H6CDD-13C12 66 1,2,3,4,6,7,8-H7CDF-13C12 44 1,2,3,4,6,7,8-H7CDD-13C12 94

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CONFIDENTIAL, CITY_21MC100_013182138 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000232726