NYC-WTC_000232716

NYC 9/11 Public Portal Document

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R02100403 R02100403 R02100403 R02100403 Client ID: 13A 13A 13A Client ID: 14A Lab No.: 039118 02 039118 02 039118 02 Lab No.: 039U9 02 late Sampled: 02/10/09 02/10/09 02/10/09 Date Sampled; 02/10/09 Matrix: Matrix:

Component Units TEF # of Isomers RDL Units

Dioxins and furans

2,3,7,8-CI4DBF pg 1.8 0.18 0.34 pg 7.0 2,3,7,8-CI4DBD 0.72 0.72 0.92 2.7 1,2,3,7,8-CI5DBF 0.71 0.035 0.78 <0.78 2,3,4,7,8-CI5DBF <0.55 <0.27 1.7 <1.7 1.2.3.7.8-CI5DBD <0.54 <0.27 1.8 <1.8 1,2,3,4,7,8-CI6DBF 0.44 0.044 0.82 <0.82 1,2,3,6,7,8-CI6DBF <0.26 <0.026 0.76 <0.76 2,3,4,6,7,8-CI6DBF <0.31 <0.031 0.89 <0.89 1,2,3,7,8,9-CI6DBF <0.37 <0.037 0.37 <0.37 1,2,3,4,7,8-CI6DBD <0.59 <0.059 2.0 <2.0 1,2,3,6,7,8-CI6DBD <0.55 <0.055 1.8 <1.8 1,2,3,7,8,9-CI6DBD <0.54 <0.054 1.8 <1.8 1,2,3,4,6,7,8-CI7DBF <13 <0.13 110 <110 1,2,3,4,7,8,9-CI7DBF <14 <0.14 130 <130 1,2,3,4,6,7,8-CI7DBD 0.68 0.0068 6.1 <6.1 1,2,3,4,6,7,8,9-CI8DBF <0.83 <0.00083 11 <11 1,2,3,4,6,7,8,9-CI8DBD 4.1 0.0041 39 <39

TEF pg 0.99 pg EPA Requested TEQs < 1.55 < MAX TEF 2.1 Units Ng/m^ 0.15 <

ET4CDF pg 2.9 3 0.34 pg 24 ZP5CDF 1.3 2 0.79 4.0 ZH6CDF 0.44 1 0.89 <0.89 ZH7CDF <14 0 120 <120 OCDF <0.83 0 11 <11 ZT4CDD 3.3 3 0.92 22 ZP5CDD 2.4 3 1.8 9.9 ZH6CDD <0.55 0 1.8 39 ZH7CDD 0.68 1 5.4 <5.4 OCDD 4.1 1 39 <39 Surrogate Recoveries % % 2,3,7,8-T4CDF-13C12 102 86 2,3,7,8-T4CDD-13C12 84 61 1,2,3,7,8-P5CDF-13C12 89 47 1,2,3,7,8-P5CDD-13C12 84 36 1,2,3,6,7,8-H6CDF-13C12 91 91 1,2,3,6,7,8-H6CDD-13C12 81 56 1,2,3,4,6,7,8-H7CDF-13C12 101 66 1,2,3,4,6,7,8-H7CDD-13C12 95 44

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CONFIDENTIAL, CITY_21MC100_013182141 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000232729