NYC-WTC_000232716

NYC 9/11 Public Portal Document

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R02100403 R02100403 R02100403 R02100403 Client ID: 07 07A 07A Client ID: 08A Lab No.: 030]] 2 02 039112 02 039112 02 Lab No.: 039113 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 0.95 0.095 1.7 pg <1.7 2,3,7,8-CI4DBD <0.54 <0.54 0.57 <0.57 1,2,3,7,8-CI5DBF <0.41 <0.020 0.74 <0.74 2,3,4,7,8-CI5DBF <0.39 <0.19 0.71 <0.71 1.2.3.7.8-CI5DBD <0.89 <0.44 0.66 <0.66 1,2,3,4,7,8-CI6DBF <0.51 <0.051 1.0 <1.0 1,2,3,6,7,8-CI6DBF <0.47 <0.047 0.97 <0.97 2,3,4,6,7,8-CI6DBF <0.55 <0.055 1.1 <1.1 1,2,3,7,8,9-CI6DBF <0.60 <0.060 1.2 <1.2 1,2,3,4,7,8-CI6DBD <0.85 <0.085 0.82 <0.82 1,2,3,6,7,8-CI6DBD <0.79 <0.079 0.76 <0.76 1,2,3,7,8,9-CI6DBD <0.77 <0.077 0.74 <0.74 1,2,3,4,6,7,8-CI7DBF <13 <0.13 11 <11 1,2,3,4,7,8,9-CI7DBF <15 <0.15 13 <13 1,2,3,4,6,7,8-CI7DBD 1.3 0.013 0.85 2.0 1,2,3,4,6,7,8,9-CI8DBF <6.7 <0.0067 0.72 1.6 1,2,3,4,6,7,8,9-CI8DBD 11 0.011 1.6 21

TEF pg 0.12 pg EPA Requested TEQs < 1.11 < MAX TEF 2.1 Units Ng/m^ 0.11 <

ET4CDF pg 0.95 1 0.53 pg 1.6 ZP5CDF <0.41 0 0.74 <0.74 ZH6CDF <0.55 0 1.1 <1.1 ZH7CDF <14 0 12 <12 OCDF <6.7 0 0.72 1.6 ZT4CDD <0.54 0 0.57 2.3 ZP5CDD <0.89 0 0.66 <0.66 ZH6CDD <0.79 0 0.76 <0.76 ZH7CDD 2.3 2 0.85 4.0 OCDD 11 1 1.6 21 Surrogate Recoveries % % 2,3,7,8-T4CDF-13C12 92 96 2,3,7,8-T4CDD-13C12 80 80 1,2,3,7,8-P5CDF-13C12 80 84 1,2,3,7,8-P5CDD-13C12 76 80 1,2,3,6,7,8-H6CDF-13C12 76 58 1,2,3,6,7,8-H6CDD-13C12 74 72 1,2,3,4,6,7,8-H7CDF-13C12 90 54 1,2,3,4,6,7,8-H7CDD-13C12 96 96

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CONFIDENTIAL, CITY_21MC100_013182137

SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000232725