Table 4 to Subpart LLLL of Part 60 - Toxic Equivalency Factors  


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  • Table 4 to Subpart LLLL of Part 60 - Toxic Equivalency Factors

    Dioxin/furan isomer 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 0.0003
    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