{
  "url": "https://openlegislation.uk/eu-regulation-2017-644/annex-III/appendix",
  "json_url": "https://openlegislation.uk/eu-regulation-2017-644/annex-III/appendix.json",
  "legislation": "eur/2017/644",
  "legislation_title": "Commission Regulation (EU) 2017/644 of 5 April 2017 laying down methods of sampling and analysis for the control of levels of dioxins, dioxin-like PCBs and non-dioxin-like PCBs in certain foodstuffs and repealing Regulation (EU) No 589/2014 (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2017-644",
  "path": "annex/III/appendix",
  "kind": "appendix",
  "number": null,
  "heading": "WHO-TEFs for human risk assessment based on the conclusions of the World Health Organisation (WHO) 0151 International Programme on Chemical Safety (IPCS) expert meeting which was held in Geneva in June 2005",
  "text": "Abbreviations used: ‘T’ = tetra; ‘Pe’ = penta; ‘Hx’ = hexa; ‘Hp’ = hepta; ‘O’ = octa; ‘CDD’ = chlorodibenzodioxin; ‘CDF’ = chlorodibenzofuran; ‘CB’ = chlorobiphenyl.\nCongener\nTEF value\nCongener\nTEF value\nDibenzo-p-dioxins (‘PCDDs’)\n‘Dioxin-like’ PCBs\nNon-ortho PCBs + Mono-ortho PCBs\n2,3,7,8-TCDD\n1\n1,2,3,7,8-PeCDD\n1\nNon-ortho PCBs\n1,2,3,4,7,8-HxCDD\n0,1\nPCB 77\n0,0001\n1,2,3,6,7,8-HxCDD\n0,1\nPCB 81\n0,0003\n1,2,3,7,8,9-HxCDD\n0,1\nPCB 126\n0,1\n1,2,3,4,6,7,8-HpCDD\n0,01\nPCB 169\n0,03\nOCDD\n0,0003\nDibenzofurans (‘PCDFs’)\nMono-ortho PCBs\n2,3,7,8-TCDF\n0,1\nPCB 105\n0,00003\n1,2,3,7,8-PeCDF\n0,03\nPCB 114\n0,00003\n2,3,4,7,8-PeCDF\n0,3\nPCB 118\n0,00003\n1,2,3,4,7,8-HxCDF\n0,1\nPCB 123\n0,00003\n1,2,3,6,7,8-HxCDF\n0,1\nPCB 156\n0,00003\n1,2,3,7,8,9-HxCDF\n0,1\nPCB 157\n0,00003\n2,3,4,6,7,8-HxCDF\n0,1\nPCB 167\n0,00003\n1,2,3,4,6,7,8-HpCDF\n0,01\nPCB 189\n0,00003\n1,2,3,4,7,8,9-HpCDF\n0,01\nOCDF\n0,0003",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "Martin van den Berg et al., The 2005 World Health Organisation Re-evaluation of Human and Mammalian Toxic Equivalency Factors for Dioxins and Dioxin-like Compounds. Toxicological Sciences 93(2), 223–241 (2006)."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2017/644/annex/III/appendix",
    "retrieved_at": "2026-11-01T14:45:03.439389+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}