International Programme on Chemical Safety (IPCS) expert meeting which was held in Geneva in June 2005. Martin van den Berg et al., The 2005 World Health Organisation Re-evaluation of Human and Mammalian Toxic Equivalency Factors for Dioxins and Dioxin- like Compounds. Toxicological Sciences 93(2), 223-241 (2006)
| Congener | TEF value |
|---|---|
| Dibenzo-para-dioxins (PCDDs) | |
| 2,3,7,8-TCDD | 1 |
| 1,2,3,7,8-PeCDD | 1 |
| 1,2,3,4,7,8-HxCDD | 0.1 |
| 1,2,3,6,7,8-HxCDD | 0.1 |
| 1,2,3,7,8,9-HxCDD | 0.1 |
| 1,2,3,4,6,7,8-HpCDD | 0.01 |
| OCDD | 0.0003 |
| Dibenzo-para-furans (PCDFs) | |
| 2,3,7,8-TCDF | 0.1 |
| 1,2,3,7,8-PeCDF | 0.03 |
| 2,3,4,7,8-PeCDF | 0.3 |
| 1,2,3,4,7,8-HxCDF | 0.1 |
| 1,2,3,6,7,8-HxCDF | 0.1 |
| 1,2,3,7,8,9-HxCDF | 0.1 |
| 2,3,4,6,7,8-HxCDF | 0.1 |
| 1,2,3,4,6,7,8-HpCDF | 0.01 |
| 1,2,3,4,7,8,9-HpCDF | 0.01 |
| OCDF | 0.0003 |
| Congener | TEF value |
|---|---|
| Dioxin-like non-ortho PCBs | |
| PCB 77 | 0.0001 |
| PCB 81 | 0.0003 |
| PCB 126 | 0.1 |
| PCB 169 | 0.03 |
| Dioxin-like mono-ortho PCBs | |
| PCB 105 | 0.00003 |
| PCB 114 | 0.00003 |
| PCB 118 | 0.00003 |
| PCB 123 | 0.00003 |
| PCB 156 | 0.00003 |
| PCB 157 | 0.00003 |
| PCB 167 | 0.00003 |
| PCB 189 | 0.00003 |
Abbreviations
T= tetra; Pe = penta; Hx = hexa; Hp = hepta; O = octa; CDD = chlorodibenzodioxin; CDF = chlorodibenzofuran; PCB = polychlorinated biphenyl