61Dioxins and furans

61 Dioxins and furans

61 Dioxins and furans

(1) To determine whether or not a standard of concentration prescribed by Schedule 2 for dioxins or furans has been exceeded, the following procedures must be applied in addition to the procedures set out in section 58—

(a) the unweighted concentration of a dioxin or furan must be determined in accordance with TM-18, using the measuring period specified in that test method,

(b) the unweighted concentration of each dioxin or furan so determined must be multiplied by the toxic equivalence factor set out in the Table to this section in relation to the dioxin or furan.

(2) For the purposes of section 52, the concentration of dioxins and furans is taken to be the sum of the amounts calculated under subsection (1)(b).

Table

| Substance | Toxic Equivalence Factor | | Dioxins | | 2,3,7,8 tetrachlorodibenzodioxin (TCDD) | 1.0 | | 1,2,3,7,8 pentachlorodibenzodioxin (PeCDD) | 1.0 | | 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) | 0.0003 | | Furans | | 2,3,7,8 tetrachlorodibenzofuran (TCDF) | 0.1 | | 1,2,3,7,8 pentachlorodibenzofuran (PeCDF) | 0.03 | | 2,3,4,7,8 pentachlorodibenzofuran (PeCDF) | 0.3 | | 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) | 0.0003 |