Appendix C - Passaic River Public Digital Library

Data queries were performed using Microsoft Access for each parameter group of interest. The individual
analytical results were summed in Access for the following chemicals: Total DDx (sum of
dichlorodiphenyldichloroethane (DDD), dichlorodiphenyldichloroethylene (DDE), and
dichlorodiphenyltrichloroethane (DDT), and PCB Aroclors. The data extracted from the project database
did not always include all parameters used for the summation (e.g., there were not always data for all
seven PCB Aroclors). The reason for these inconsistencies was not investigated, and the summations
were calculated based only on the available parameters.
TEQ values for D/F and PCB congeners were calculated using congener-specific TEFs (see Table 2-2).
The TEFs were calculated separately for each individual parameter and summed to derive the TEQ value.
Table 2-2. TEQ Factors for Dioxin/Furans and Dioxin-like PCB Congeners.
Congener
Mammal
TEF
a Mammal b Fish a Bird a
Dioxins/Furans
2,3,7,8- TCDD 1 1 1 1
1,2,3,7,8-PeCDD 1 1 1 1
1,2,3,4,7,8-HxCDD 0.1 0.1 0.5 0.05
1,2,3,6,7,8-HxCDD 0.1 0.1 0.01 0.01
1,2,3,7,8,9-HxCDD 0.1 0.1 0.01 0.1
1,2,3,4,6,7,8-HpCDD 0.01 0.01 0.001 0.001
OCDD 0.0001 0.0003 0.0001 0.0001
2,3,7,8-TCDF 0.1 0.1 0.05 1
1,2,3,7,8-PeCDF 0.05 0.03 0.05 0.1
2,3,4,7,8-PeCDF 0.5 0.3 0.5 1
1,2,3,4,7,8-HxCDF 0.1 0.1 0.1 0.1
1,2,3,6,7,8-HxCDF 0.1 0.1 0.1 0.1
1,2,3,7,8,9-HxCDF 0.1 0.1 0.1 0.1
2,3,4,6,7,8-HxCDF 0.1 0.1 0.1 0.1
1,2,3,4,6,7,8-HpCDF 0.01 0.01 0.01 0.01
1,2,3,4,7,8,9-HpCDF 0.01 0.01 0.01 0.01
OCDF 0.0001
PCB Congeners
0.0003 0.0001 0.0001
3,3',4,4'-Tetrachlorobiphenyl (77) 0.0001 0.0001 0.0001 0.05
3,4,4',5-Tetrachlorobiphenyl (81) 0.0001 0.0003 0.0005 0.1
3,3',4,4',5-Pentachlorobiphenyl (126) 0.1 0.1 0.005 0.1
3,3',4,4',5,5'-Hexachlorobiphenyl (169) 0.01 0.03 0.00005 0.001
2,3,3',4,4'-Pentachlorobiphenyl (105) 0.0001 0.00003 0.000005 0.0001
2,3,4,4',5-Pentachlorobiphenyl (114) 0.0005 0.00003 0.000005 0.0001
2,3',4,4',5-Pentachlorobiphenyl (118) 0.0001 0.00003 0.000005 0.00001
2',3,4,4',5-Pentachlorobiphenyl (123) 0.0001 0.00003 0.000005 0.00001
2,3,3',4,4',5-Hexachlorobiphenyl (156) 0.0005 0.00003 0.000005 0.0001
2,3,3',4,4',5'-Hexachlorobiphenyl (157) 0.0005 0.00003 0.000005 0.0001
2,3',4,4',5,5'-Hexachlorobiphenyl (167) 0.00001 0.00003 0.000005 0.00001
2,3,3',4,4',5,5'-Heptachlorobiphenyl (189) 0.0001 0.00003 0.000005 0.00001
Source: a. Van den Berg et al., 1998
b. Van den Berg et al., 2006.
Draft Focused Feasibility Study Risk Assessment 2-7 June 2007
Lower Passaic River Restoration Project Appendix C