NYC-WTC_000232716

NYC 9/11 Public Portal Document

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R02100403 R02100403 R02100403 R02100403 R02100403 17A 17A Client ID: 18A 18A 18A 039122 02 039122 02 Lab No.: 039^23 02 039123 02 039123 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 #ot Isomers

Dioxins and furans

2,3,7,8-CI4DBF <0.22 0.45 pg 1.3 0.13 2,3,7,8-CI4DBD <0.51 0.55 0.91 0.91 1,2,3,7,8-CI5DBF <0.037 0.56 1.2 0.058 2,3,4,7,8-CI5DBF <0.37 0.54 0.92 0.46 1,2,3,7,8-CI5DBD <0.65 0.74 <0.74 <0.37 1,2,3,4,7,8-CI6DBF <0.17 0.57 <0.57 <0.057 1,2,3,6,7,8-CI6DBF <0.16 0.53 0.71 0.071 2,3,4,6,7,8-CI6DBF <0.19 0.62 1.1 0.11 1,2,3,7,8,9-CI6DBF <0.21 0.67 <0.67 <0.067 1,2,3,4,7,8-CI6DBD <0.16 1.7 <1.7 <0.17 1,2,3,6,7,8-CI6DBD <0.15 1.5 <1.5 <0.15 1,2,3,7,8,9-CI6DBD <0.14 1.4 <1.4 <0.14 1,2,3,4,6,7,8-CI7DBF <0.027 67 <67 <0.67 1,2,3,4,7,8,9-CI7DBF <0.029 77 <77 <0.77 1,2,3,4,6,7,8-CI7DBD 0.043 1.2 <1.2 <0.012 1,2,3,4,6,7,8,9-CI8DBF <0.0033 12 <12 <0.012 1,2,3,4,6,7,8,9-CI8DBD 0.036 1.2 3.4 0.0034

TEF 0.079 pg 1.7 EPA Requested TEQs 1.59 < 2.95 MAX TEF 3.1 < 4.2 Units Ng/m^ 0.16 < 0.30

ET4CDF 4 0.45 pg 1.3 1 ZP5CDF 0 0.56 2.1 2 ZH6CDF 0 0.62 1.8 2 ZH7CDF 0 72 <72 0 OCDF 0 12 <12 0 ZT4CDD 1 0.55 0.91 1 ZP5CDD 0 0.74 <0.74 0 ZH6CDD 0 0.80 <0.80 0 ZH7CDD 1 1.2 <1.2 0 OCDD 1 1.2 3.4 1 Surrogate Recoveries % 2,3,7,8-T4CDF-13C12 85 2,3,7,8-T4CDD-13C12 70 1,2,3,7,8-P5CDF-13C12 67 1,2,3,7,8-P5CDD-13C12 59 1,2,3,6,7,8-H6CDF-13C12 99 1,2,3,6,7,8-H6CDD-13C12 79 1,2,3,4,6,7,8-H7CDF-13C12 98 1,2,3,4,6,7,8-H7CDD-13C12 84

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CONFIDENTIAL, CITY_21MC100_013182144

SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000232732