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. Author manuscript; available in PMC: 2020 Aug 1.
Published in final edited form as: Int J Hyg Environ Health. 2019 Jul 5;222(7):1001–1010. doi: 10.1016/j.ijheh.2019.06.008

Table 1.

Polychlorinated biphenyl groupings used in the present analysis.

Group PCB Congeners Included
Wolff Group 1B (WG1B; weak phenobarbital inducers, persistent) 187
Wolff Group 2A (WG2A; potentially antiestrogenic and immunotoxic, dioxin-like, moderately persistent) 66, 74, 105, 118, 156, 167
Wolff Group 2B (WG2B; potentially antiestrogenic and immunotoxic, limited dioxin activity, persistent) 138/158, 170
Wolff Group 3 (WG3; phenobarbital, CYP1A and CYP2B inducers, biologically persistent) 99, 153, 180, 196/203, 183
Dioxin-like (DL-PCBs) 105, 114, 118, 156, 157, 167, 189, 170, 180
Tri- and tetra-substituted (TT-PCBs) 28, 66, 74
Penta- and hexa-substituted (PH-PCBs) 99, 105, 114, 118, 138/158, 146, 153, 156, 157, 167
Hepta-, octa-, nona-, and deca-substituted (HOND-PCBs) 170, 178, 180, 183, 187, 189, 194, 196/203, 199, 206, 209
4 most common PCBs (PCB-4) 118, 153, 138/158, 180
PCBs >50% detected (PCB>50%) 28, 66, 74, 99, 105, 118, 138/158, 146, 153, 156, 170, 178, 180, 183, 187, 194, 196/203, 199
Total PCBs 28, 66, 74, 99, 105, 114, 118, 138/158, 146, 153, 156, 157, 167, 170, 178, 180, 183, 187, 189, 194, 196/203, 199, 206, 209