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


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

    Dioxin/furan congener Toxic
    equivalency
    factor
    2,3,7,8-tetrachlorodibenzo-p-dioxin 1
    1,2,3,7,8-pentachlorodibenzo-p-dioxin 1
    1,2,3,4,7,8-hexachlorodibenzo-p-dioxin 0.1
    1,2,3,7,8,9-hexachlorodibenzo-p-dioxin 0.1
    1,2,3,6,7,8-hexachlorodibenzo-p-dioxin 0.1
    1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin 0.01
    octachlorodibenzo-p-dioxin 0.0003
    2,3,7,8-tetrachlorodibenzofuran 0.1
    2,3,4,7,8-pentachlorodibenzofuran 0.3
    1,2,3,7,8-pentachlorodibenzofuran 0.03
    1,2,3,4,7,8-hexachlorodibenzofuran 0.1
    1,2,3,6,7,8-hexachlorodibenzofuran 0.1
    1,2,3,7,8,9-hexachlorodibenzofuran 0.1
    2,3,4,6,7,8-hexachlorodibenzofuran 0.1
    1,2,3,4,6,7,8-heptachlorodibenzofuran 0.01
    1,2,3,4,7,8,9-heptachlorodibenzofuran 0.01
    Octachlorodibenzofuran 0.0003