Analytical laboratory reports attachment for PCDDs and PCDFs, 2008

NYC 9/11 Public Portal Document

I . / ■ y - Pace Analytical Sarviees, Inc. i 1700 Eim Street, Sune 200 oce Analytical" Minneapolis, MN 55414 Phone: 612.607.1700 mm.paeBlabs.com Fax: 612.607.6444 TABLE 5. 2,3,7.8-TCDD Equivalency Factors (TEFs) for the Polychlorinated Dibenzo-p-dioxins and Dibenzofurans

Number P.; Compound(s) TEF

1 2,3,7,8-TCDD

a 1.00 2 1,2,3,7,8-PeCDD 0.50 3 1,2,3,6,7,8-HxCDD 0.1 4 1,2,3,7,8,9-HxCDD 0.1 5 1,2,3,4,7,8-HxCDD 0.1 6 1,2,3,4,6,7,8-HpCDD 0.01 OCDD 0.001 * Total - TCDD 0.0 9 * Total - PeCDD 0.0 * Total-HxCDD 0.0 U 11- * Total - HpCDD 0.0

12 2,3,7,8-TCDF 0.10 13 1,2,3,7,8-PeCDF 0.05 14 2,3,4,7,8-PeCDF 0.5 15 1,2,3,6,7,8-HxGDF 0.1 16 1,2,3,7,8,9-HxCDF 0.1 17 1,2,3,4,7,8-HxCOF 0.1 18 2,3,4,6,7,8-HxCDF 0.1 J 19 1,2,3,4,6,7,8-HpCDF 0.01 20 1,2,3,4,7,8,9-HpCDF 0.01

i 21 22 23 OCDF * Total - TCDF * Total - PeCDF 0.001 0.0 0.0 24 * Total - HxCDF 0.0 25 * Total - HpGDF 0.0

I ' ' *Excluding the 2,3,7,8-substituted congeners.

M Reference: 1989 ITEFs

■.1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except In full, without the written consent of Pace Analytical Services, Inc.

CONFIDENTIAL, CITY_21MC100_003432706 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000175739