40 CFR Table 2
Toxic Equivalency Factors
June 9, 2020
Open Table
Dioxin/furan congener | Toxic equivalency factor |
---|---|
2,3,7,8-tetrachlorinated dibenzo-p-dioxin | 1 |
1,2,3,7,8-pentachlorinated dibenzo-p-dioxin | 1 |
1,2,3,4,7,8-hexachlorinated dibenzo-p-dioxin | 0.1 |
1,2,3,7,8,9-hexachlorinated dibenzo-p-dioxin | 0.1 |
1,2,3,6,7,8-hexachlorinated dibenzo-p-dioxin | 0.1 |
1,2,3,4,6,7,8-heptachlorinated dibenzo-p-dioxin | 0.01 |
octachlorinated dibenzo-p-dioxin | 0.0001 |
2,3,7,8-tetrachlorinated dibenzofuran | 0.1 |
2,3,4,7,8-pentachlorinated dibenzofuran | 0.5 |
1,2,3,7,8-pentachlorinated dibenzofuran | 0.05 |
1,2,3,4,7,8-hexachlorinated dibenzofuran | 0.1 |
1,2,3,6,7,8-hexachlorinated dibenzofuran | 0.1 |
1,2,3,7,8,9-hexachlorinated dibenzofuran | 0.1 |
2,3,4,6,7,8-hexachlorinated dibenzofuran | 0.1 |
1,2,3,4,6,7,8-heptachlorinated dibenzofuran | 0.01 |
1,2,3,4,7,8,9-heptachlorinated dibenzofuran | 0.01 |
octachlorinated dibenzofuran | 0.0001 |