Toxicity equivalence

{
  "id": "MLC-T-ENV-028404",
  "term": "Toxicity equivalence",
  "field": "Environment",
  "term_source": "Toxicity Equivalence",
  "definition": "1. International method of expressing toxicity equivalents for dioxins and furans as defined in U.S. EPA, Interim Procedures for Estimating Risks Associated with Exposures to Mixtures of Chlorinated Dibenzo-p-dioxins and -dibenzofurans (CDDs and CDFs) and 1989 Update, March 1989.\n\n2. International method of expressing toxicity equivalents for dioxins and furans as defined in “Interim Procedures for Estimating Risks Associated with Exposures to Mixtures of Chlorinated Dibenzo-p-Dioxins and -Dibenzofurans (CDDs and CDFs) and 1989 Update” (EPA-625/3-89-016), available from the National Technical Information Service (NTIS), 5285 Port Royal Road, Springfield, Virginia 22161, NTIS no. PB 90-145756.\n\n3. Toxicity equivalence, the international method of relating the toxicity of various dioxin/furan congeners to the toxicity of 2,3,7,8-tetrachlorodibenzo-p-dioxin.\n\n4. International method of expressing toxicity equivalents for PCBs as defined in U.S. EPA, Recommended Toxicity Equivalence Factors (TEFs) for Human Health Risk Assessments of 2,3,7,8-Tetrachlorodibenzo-p-dioxin and Dioxin-Like Compounds, EPA/100/R-10/005 December 2010.\n\n5. International method of expressing toxicity equivalents for dioxins and furans as defined in U.S. EPA, Interim Procedures for Estimating Risks Associated with Exposures to Mixtures of Chlorinated Dibenzo-p-dioxins and -dibenzofurans (CDDs and CDFs) and 1989 Update, March 1989. The 1989 Toxic Equivalency Factors (TEFs) used to determine the dioxin and furan TEQs are listed in Table 2 to subpart LLL of Part 63.\n\n6. International method of expressing toxicity equivalents for dioxins/furans as defined in EPA/100/R-10/005 (incorporated by reference, see § 63.14). The Toxic Equivalency 49 Factors (TEFs) used to determine the dioxin and furan TEQs are listed in table 3 to this subpart.",
  "abbreviation": "TEQ",
  "subject": "Regulatory activities",
  "references": [
    "40 CFR 63.1201 (CFR 2013)",
    "40 CFR 63.1503 (CFR 2013)",
    "40 CFR 260.10 (CFR 2013)",
    "40 CFR 63.842 (CFR 2016)",
    "40 CFR 63.1341 (CFR 2019)",
    "40 CFR 63.1459 (CFR 2024)"
  ],
  "url": "https://mlchart.com/terminology/environment/toxicity-equivalence/"
}