Division 20 Polychlorodibenzofurans and polychlorodibenzodioxins
United Kingdom
The quantities of polychlorodibenzofurans and polychlorodibenzodioxins are calculated using the following factors:
| WHO 2005 TEF | |||
|---|---|---|---|
| 2,3,7,8-TCDD | 1 | 2,3,7,8-TCDF | 0,1 |
| 1,2,3,7,8-PeCDD | 1 | 2,3,4,7,8-PeCDF | 0,3 |
| 1,2,3,7,8-PeCDF | 0,03 | ||
| 1,2,3,4,7,8-HxCDD | 0,1 | ||
| 1,2,3,6,7,8-HxCDD | 0,1 | 1,2,3,4,7,8-HxCDF | 0,1 |
| 1,2,3,7,8,9-HxCDD | 0,1 | 1,2,3,7,8,9-HxCDF | 0,1 |
| 1,2,3,6,7,8-HxCDF | 0,1 | ||
| 1,2,3,4,6,7,8-HpCDD | 0,01 | 2,3,4,6,7,8-HxCDF | 0,1 |
| OCDD | 0,0003 | 1,2,3,4,6,7,8-HpCDF | 0,01 |
| 1,2,3,4,7,8,9-HpCDF | 0,01 | ||
| OCDF | 0,0003 | ||
| (T = tetra, P = penta, Hx = hexa, Hp = hepta, O = octa) | |||
| Reference — 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 | |||