NYC-WTC_000232716

NYC 9/11 Public Portal Document

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R02100403 R02100403 R02100403 R02100403 Client ID: 16A 16A 16A Client ID: 17A Lab No.: 039^2} 02 039121 02 039121 02 Lab No.: 039^22 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 <3.4 <0.34 2.2 pg <2.2 2,3,7,8-CI4DBD <0.50 <0.50 0.51 <0.51 1,2,3,7,8-CI5DBF 0.52 0.026 0.74 <0.74 2,3,4,7,8-CI5DBF <0.76 <0.38 0.75 <0.75 1.2.3.7.8-CI5DBD <0.91 <0.46 1.3 <1.3 1,2,3,4,7,8-CI6DBF 1.2 0.12 1.7 <1.7 1,2,3,6,7,8-CI6DBF <0.64 <0.064 1.6 <1.6 2,3,4,6,7,8-CI6DBF <0.34 <0.034 1.9 <1.9 1,2,3,7,8,9-CI6DBF <0.37 <0.037 2.1 <2.1 1,2,3,4,7,8-CI6DBD <0.97 <0.097 1.6 <1.6 1,2,3,6,7,8-CI6DBD <0.90 <0.090 1.5 <1.5 1,2,3,7,8,9-CI6DBD <0.88 <0.088 1.4 <1.4 1,2,3,4,6,7,8-CI7DBF <30 <0.30 2.7 <2.7 1,2,3,4,7,8,9-CI7DBF <3.9 <0.039 2.9 <2.9 1,2,3,4,6,7,8-CI7DBD <3.0 <0.030 1.6 4.3 1,2,3,4,6,7,8,9-CI8DBF 37 0.037 3.2 <3.2 1,2,3,4,6,7,8,9-CI8DBD <11 <0.011 5.8 36

TEF pg 0.18 pg EPA Requested TEQs < 1.44 < MAX TEF 2.7 Units Ng/m^ 0.14 <

ET4CDF pg 9.5 6 0.36 pg 4.7 ZP5CDF 3.8 3 0.77 <0.77 ZH6CDF 1.2 1 1.9 <1.9 ZH7CDF <32 0 100 <100 OCDF 37 1 3.2 <3.2 ZT4CDD 12 5 0.51 1.8 ZP5CDD 1.6 1 1.3 <1.3 ZH6CDD <0.90 0 1.5 <1.5 ZH7CDD 2.5 1 1.6 4.3 OCDD <11 0 5.8 36 Surrogate Recoveries % % 2,3,7,8-T4CDF-13C12 98 90 2,3,7,8-T4CDD-13C12 82 77 1,2,3,7,8-P5CDF-13C12 73 69 1,2,3,7,8-P5CDD-13C12 58 53 1,2,3,6,7,8-H6CDF-13C12 119 49 1,2,3,6,7,8-H6CDD-13C12 89 52 1,2,3,4,6,7,8-H7CDF-13C12 96 36 1,2,3,4,6,7,8-H7CDD-13C12 74 59

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CONFIDENTIAL, CITY_21MC100_013182143 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000232731