- Table 6 to Subpart HHHHHHH of Part 63—Toxic Equivalency Factors

Dioxin/furan congener Toxic
equivalency
factor
2,3,7,8-tetrachlorodibenzo-p-dioxin1 1,2,3,7,8-pentachlorodibenzo-p-dioxin1 1,2,3,4,7,8-hexachlorodibenzo-p-dioxin0.1 1,2,3,7,8,9-hexachlorodibenzo-p-dioxin0.1 1,2,3,6,7,8-hexachlorodibenzo-p-dioxin0.1 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin0.01 octachlorodibenzo-p-dioxin0.0003 2,3,7,8-tetrachlorodibenzofuran0.1 2,3,4,7,8-pentachlorodibenzofuran0.3 1,2,3,7,8-pentachlorodibenzofuran0.03 1,2,3,4,7,8-hexachlorodibenzofuran0.1 1,2,3,6,7,8-hexachlorodibenzofuran0.1 1,2,3,7,8,9-hexachlorodibenzofuran0.1 2,3,4,6,7,8-hexachlorodibenzofuran0.1 1,2,3,4,6,7,8-heptachlorodibenzofuran0.01 1,2,3,4,7,8,9-heptachlorodibenzofuran0.01 Octachlorodibenzofuran0.0003