- Table 5 to Subpart FFFFF of Part 63—Toxic Equivalency Factors
As stated in § 63.7825(u), you must demonstrate compliance with each dioxin/furan emission limit that applies to you by calculating the sum of the 2,3,7,8-TCDD TEQs using the 2005 World Health Organization (WHO) toxicity equivalence factors (TEF) presented in the following table:
| For each dioxin/furan congener . . . | You must calculate its
2,3,7,8-TCDD TEQ using the following TEF . . . | 2,3,7,8-tetrachlorodibenzo-p-dioxin | 1 | 1,2,3,7,8-pentachlorodibenzo-p-dioxin | 1 | 1,2,3,4,7,8-hexachlorodibenzo-p-dioxin | 0.1 | 1,2,3,7,8,9-hexachlorodibenzo-p-dioxin | 0.1 | 1,2,3,6,7,8-hexachlorodibenzo-p-dioxin | 0.1 | 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin | 0.01 | Octachlorodibenzo-p-dioxin | 0.0003 | 2,3,7,8-tetrachlorodibenzofuran | 0.1 | 1,2,3,7,8-pentachlorodibenzofuran | 0.03 | 2,3,4,7,8-pentachlorodibenzofuran | 0.3 | 1,2,3,4,7,8-hexachlorodibenzofuran | 0.1 | 1,2,3,6,7,8-hexachlorodibenzofuran | 0.1 | 1,2,3,7,8,9-hexachlorodibenzofuran | 0.1 | 2,3,4,6,7,8-hexachlorodibenzofuran | 0.1 | 1,2,3,4,6,7,8-heptachlorodibenzofuran | 0.01 | 1,2,3,4,7,8,9-heptachlorodibenzofuran | 0.01 | Octachlorodibenzofuran | 0.0003 |
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