Paragraph 17 F1
In order to determine the total concentration of dioxins and furans, the mass concentrations of the dibenzo-p-dioxins and dibenzofurans in column 1 of Table 1 must be multiplied by the equivalence factors in column 2 of Table 1 before totalling.
Table 1
| Toxic equivalence factor | |
|---|---|
| 2,3,7,8 — Tetrachlorodibenzodioxin (TCDD) | 1 |
| 1,2,3,7,8 — Pentachlorodibenzodioxin (PeCDD) | 0.5 |
| 1,2,3,4,7,8 — Hexachlorodibenzodioxin (HxCDD) | 0.1 |
| 1,2,3,6,7,8 — Hexachlorodibenzodioxin (HxCDD) | 0.1 |
| 1,2,3,7,8,9 — Hexachlorodibenzodioxin (HxCDD) | 0.1 |
| 1,2,3,4,6,7,8 — Heptachlorodibenzodioxin (HpCDD) | 0.01 |
| Octachlorodibenzodioxin (OCDD) | 0.001 |
| 2,3,7,8 — Tetrachlorodibenzofuran (TCDF) | 0.1 |
| 2,3,4,7,8 — Pentachlorodibenzofuran (PeCDF) | 0.5 |
| 1,2,3,7,8 — Pentachlorodibenzofuran (PeCDF) | 0.05 |
| 1,2,3,4,7,8 — Hexachlorodibenzofuran (HxCDF) | 0.1 |
| 1,2,3,6,7,8 — Hexachlorodibenzofuran (HxCDF) | 0.1 |
| 1,2,3,7,8,9 — Hexachlorodibenzofuran (HxCDF) | 0.1 |
| 2,3,4,6,7,8 — Hexachlorodibenzofuran (HxCDF) | 0.1 |
| 1,2,3,4,6,7,8 — Heptachlorodibenzofuran (HpCDF) | 0.01 |
| 1,2,3,4,7,8,9 — Heptachlorodibenzofuran (HpCDF) | 0.01 |
| Octachlorodibenzofuran (OCDF) | 0.001 |
Annotations
Textual amendments
- F1
Sch. 22 inserted (1.11.2025) by The Environmental Authorisations (Scotland) Amendment Regulations 2025 (S.S.I. 2025/165), reg. 1(2), sch. 13 (with sch. 23)