NYC-WTC_000232716

NYC 9/11 Public Portal Document

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R02100403 R02100403 R02100403 R02100403 Client ID: 04A 04A 04A Client ID: 05A Lab No.: 039^09 02 039109 02 039109 02 Lab No.: 039U0 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 <0.56 <0.056 0.58 pg <0.58 2,3,7,8-CI4DBD <6.0 <6.0 0.34 0.38 1,2,3,7,8-CI5DBF <1.3 <0.065 0.51 0.56 2,3,4,7,8-CI5DBF <1.2 <0.62 0.49 <0.49 1.2.3.7.8-CI5DBD <1.5 <0.73 0.46 <0.46 1,2,3,4,7,8-CI6DBF <1.1 <0.11 0.72 <0.72 1,2,3,6,7,8-CI6DBF <0.99 <0.099 0.30 <0.30 2,3,4,6,7,8-CI6DBF 2.1 0.21 0.45 <0.45 1,2,3,7,8,9-CI6DBF <1.3 <0.13 0.62 <0.62 1,2,3,4,7,8-CI6DBD <2.3 <0.23 0.60 <0.60 1,2,3,6,7,8-CI6DBD <2.1 <0.21 0.55 <0.55 1,2,3,7,8,9-CI6DBD <2.1 <0.21 0.54 <0.54 1,2,3,4,6,7,8-CI7DBF <22 <0.22 1.8 <1.8 1,2,3,4,7,8,9-CI7DBF <14 <0.14 1.2 <1.2 1,2,3,4,6,7,8-CI7DBD 9.0 0.090 0.74 <0.74 1,2,3,4,6,7,8,9-CI8DBF 6.4 0.0064 0.87 1.2 1,2,3,4,6,7,8,9-CI8DBD 78 0.078 3.1 <3.1

TEF pg 0.38 pg EPA Requested TEQs < 4.79 < MAX TEF 9.2 Units Ng/m^ 0.48 <

ET4CDF pg 29 11 0.23 pg <0.23 ZP5CDF 4.8 1 0.51 0.56 ZH6CDF 12 2 0.57 <0.57 ZH7CDF <9.5 0 1.1 <1.1 OCDF 6.4 1 0.87 1.2 ZT4CDD 31 5 0.34 0.38 ZP5CDD 6.7 2 0.46 <0.46 ZH6CDD <2.1 0 0.55 <0.55 ZH7CDD 9.7 2 0.74 <0.74 OCDD 78 1 3.1 <3.1 Surrogate Recoveries % % 2,3,7,8-T4CDF-13C12 88 94 2,3,7,8-T4CDD-13C12 72 82 1,2,3,7,8-P5CDF-13C12 66 80 1,2,3,7,8-P5CDD-13C12 50 72 1,2,3,6,7,8-H6CDF-13C12 78 58 1,2,3,6,7,8-H6CDD-13C12 70 70 1,2,3,4,6,7,8-H7CDF-13C12 78 48 1,2,3,4,6,7,8-H7CDD-13C12 72 88

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CONFIDENTIAL, CITY_21MC100_013182135 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000232723