NYC-WTC_000220335

NYC 9/11 Public Portal Document

PSC Analytical Services Certificate of Analysis

R02100402 R02100402 R02100402 Client ID: 07A 07A 07A Lab No.: 039092 02 039092 02 039092 02 Date Sampled: 02/10/09 02/10/09 02/10/09 Matrix:

Component RDL Units TEF # of Isomers

Dioxins and furans

2,3,7,8-CI4DBF 0.31 pg 34 3.4 2,3.7,8-CI4DBD 8.8 <1 <8.8 <8.8 1,2,3,7,8-CI5DBF 0.46 6.6 0.33 2,3,4,7,8-CI5DBF 0.45 II 6.6 3.3 1,2,3,7,8-C15DBD 3.6 <3.6 <1.8 1,2,3,4,7,8-CI6DBF 0,74 7.0 0.70 1,2,3,6,7,8-CI6DBF 5.0 <5.0 <0.50 2,3,4,6,7,8-CI6DBF 0.81 7.8 0.78 1,2,3,7,8,9-CI6DBF 0.87 6.2 0.62 1.2,3,4.7,8-CI6DBD 1.5 3.2 0.32 1,2,3,6,7,8-CI6DBD 4.6 <4.6 <0.46 1,2,3,7.8,9-CI6DBD 1.3 6.8 0.68 1,2,3,4,6,7,8-CI7DBF 51 <51 <0.51 1,2,3,4,7,8,9-CI7DBF 8.5 <8.5 <0.085 1,2,3,4,6,7,8-CI7DBD 1.9 20 0.20 1,2,3,4,6,7,8,9-CI8DBF 1.8 12 0.012 1,2,3,4,6,7,8,9-CI8DBD 2.5 H 100 0.10

TEF pg 10 EPA Requested TEQ 16.50 MAX TEF 23 Units Ng/m^ 1.65

ST4CDF 0.31 pg 150 13 ZP5CDF 0.46 56 8 ZH6CDF 0.74 28 4 IH7CDF 11 <11 0 OCDF 1.8 12 1 ZT4CDD 0.55 170 10 2;P5CDD 0.96 84 5 SHeCDD 1.4 54 5 I;H7CDD 1.9 38 2 OCDD 2.5 100 1 Surrogate Recoveries % 2,3,7,8-T4CDF-13C12 91 2,3,7,8-T4CDD-13C12 88 1,2,3.7,8-P5CDF-13C12 69 1,2,3,7,8-P5CDD-13C12 62 1,2,3,6,7,8-H6CDF-13C12 88 1,2,3,6,7,8-H6CDD-13C12 83 1,2,3,4,6,7,8-H7CDF-13C12 65 1,2,3,4.6,7,8-H7CDD-13C12 67 OCDD-13C12 41

Certificate No:2J0575 file # =R02100402 TEQ Report nh Page 7 of 20 Revision No. 0

CITY_21MC100_002917312

NYC-WTC_000220335