Code of Federal Regulations (Last Updated: May 6, 2024) |
Title 40 - Protection of Environment |
Chapter I - Environmental Protection Agency |
SubChapter C - Air Programs |
Part 63 - National Emission Standards for Hazardous Air Pollutants for Source Categories |
Subpart X - National Emission Standards For Hazardous Air Pollutants From Secondary Lead Smelting |
Table 3 to Subpart X of Part 63 - Toxic Equivalency Factors
Latest version.
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Table 3 to Subpart X of Part 63 - Toxic Equivalency Factors
Dioxin/furan congener Toxic
equivalency
factor2,3,7,8-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 0.0003 2,3,7,8-tetrachlorinated dibenzofuran 0.1 2,3,4,7,8-pentachlorinated dibenzofuran 0.3 1,2,3,7,8-pentachlorinated dibenzofuran 0.03 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 0.0003 [79 FR 372, Jan. 3, 2014]