NYC-WTC_000220331

NYC 9/11 Public Portal Document

PSC Analytical Services Certificate of Analysis R02100402 R02100402 R02100402 Client ID: 05A 05A OSA Lab No.: 039090 02 039090 02 039090 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 3.1 pg <3.1 <0.31 2,3,7,8-CI4DBD 0.47 <0.47 <0.47 1,2,3,7,8-CI5DBF 0.49 <0.49 <0.025 2,3,4,7.8-CI5DBF 0.13 0.53 0.27 1,2,3,7,8-CI5DBD 0.37 <0.37 <0.18 1,2,3,4,7,8-CI6DBF 0.64 <0.64 <0.064 1,2,3,6,7,8-CI6DBF 0.42 <0.42 <0.042 2,3,4,6,7,8-C16DBF 0.49 <0.49 <0.049 1,2,3,7,8,9-CI6DBF 0.53 <0.53 <0.053 1,2,3,4,7,8-CI6DBD 0.27 <0.27 <0.027 1,2,3,6,7,8-CI6DBD 0.25 <0.25 <0.025 1,2,3,7,8,9-CI6DBD 0.25 <0.25 <0.025 1,2,3,4,6,7,8-CI7DBF 3.7 <3.7 <0.037 1,2,3,4,7,8,9-CI7DBF 4.3 <4.3 <0.043 1,2,3,4,6,7,8-CI7DBD 3.8 It <3.8 <0.038 1,2,3,4,6,7,8,9-CI8DBF 1.9 <1.9 <0.0019 1,2,3,4,6,7,8,9-CI8DBD 1.9 34 0.034

TEF pg 0.30 EPA Requested TEQ 1.00 M/V< TEF < 1.7 Units Ng/m^ 0.10

ST4CDF 0.14 pg 5.1 5 IP5CDF 0.13 0.53 1 SH6CDF 0.45 <0.45 0 SH7CDF 4.0 <4.0 0 OCDF 1.9 It <1.9 0 IT4CDD 0.47 10 4 ZP5CDD 0.37 2.6 1 SH6CDD 0.25 1.3 1 2H/CDD 0.64 4.7 1 OCDD 1.9 34 1 Surrogate Recoveries % 2,3,7,8-T4CDF-13C12 91 2,3,7,8-T4CDD-13C12 88 1,2,3,7,8-P5CDF-13C12 75 1,2,3,7,8-P5CDD-13C12 70 1,2,3,6,7,8-H6CDF-13C12 96 1,2,3,6,7,8-H6CDD-13C12 89 1,2,3,4,6,7,8-H7CDF-13C12 85 1,2,3,4,6,7,8-H7CDD-13C12 77 OCDD-13C12 50

Certificate No:2J0575 file# =R02100402TEQ Report nh Page 5 of 20 Revision No. 0

CITY_21MC100_002917310

NYC-WTC_000220333