- Table 2 to Subpart Ec of Part 60 - Toxic Equivalency Factors

Dioxin/furan congener Toxic equivalency factor
2,3,7,8-tetrachlorinated dibenzo-p-dioxin1
1,2,3,7,8-pentachlorinated dibenzo-p-dioxin0.5
1,2,3,4,7,8-hexachlorinated dibenzo-p-dioxin0.1
1,2,3,7,8,9-hexachlorinated dibenzo-p-dioxin0.1
1,2,3,6,7,8-hexachlorinated dibenzo-p-dioxin0.1
1,2,3,4,6,7,8-heptachlorinated dibenzo-p-dioxin0.01
octachlorinated dibenzo-p-dioxin0.001
2,3,7,8-tetrachlorinated dibenzofuran0.1
2,3,4,7,8-pentachlorinated dibenzofuran0.5
1,2,3,7,8-pentachlorinated dibenzofuran0.05
1,2,3,4,7,8-hexachlorinated dibenzofuran0.1
1,2,3,6,7,8-hexachlorinated dibenzofuran0.1
1,2,3,7,8,9-hexachlorinated dibenzofuran0.1
2,3,4,6,7,8-hexachlorinated dibenzofuran0.1
1,2,3,4,6,7,8-heptachlorinated dibenzofuran0.01
1,2,3,4,7,8,9-heptachlorinated dibenzofuran0.01
Octachlorinated dibenzofuran0.001