PCB Congener Toxicity Equivalency Factor
| PCB Congener | Toxicity Equivalency Factors1 |
|---|---|
| 3,3',4,4'-TeCB (PCB-77) | 0.0001 |
| 3,4,4',5- TeCB (PCB-81) | 0.0003 |
| 3,3',4,4',5-PeCB (PCB-126) | 0.1 |
| 2,3,3',4,4'-- PeCB (PCB-105) | 0.00003 |
| 2,3,4,4',5-- PeCB (PCB-114) | 0.00003 |
| 2,3',4,4',5-- PeCB (PCB-118) | 0.00003 |
| 2',3,4,4',5-- PeCB (PCB-123) | 0.00003 |
| 2,3,3',4,4',5-HxCB (PCB-156) | 0.00003 |
| 2,3,3',4,4',5'- HxCB (PCB-157) | 0.00003 |
| 2,3',4,4',5,5'- HxCB (PCB-167) | 0.00003 |
| 3,3',4,4',5,5'- HxCB (PCB-169) | 0.03 |
| 2,3,3',4,4',5,5'- HpCB (PCB-189) | 0.00003 |
1Van Den Berg, et al:The 2005 World Health Organization’s Re-evaluation of Human and Mammalian Toxic Equivalency Factors For Dioxins and Dioxin-like Compounds
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