{
  "url": "https://openlegislation.uk/eu-decision-2017-1442/annex/division-1/division-1.2/division-4",
  "json_url": "https://openlegislation.uk/eu-decision-2017-1442/annex/division-1/division-1.2/division-4.json",
  "legislation": "eudn/2017/1442",
  "legislation_title": "Commission Implementing Decision (EU) 2017/1442 of 31 July 2017 establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for large combustion plants (notified under document C(2017) 5225) (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2017-1442",
  "path": "annex/division/1/division/1.2/division/4",
  "kind": "division",
  "number": "BAT 5",
  "heading": "BAT is to monitor emissions to water from flue-gas treatment with at least the frequency given below and in accordance with EN standards. If EN standards are not available, BAT is to use ISO, national or other international standards that ensure the provision of data of an equivalent scientific quality.",
  "text": "TOC monitoring and COD monitoring are alternatives. TOC monitoring is the preferred option because it does not rely on the use of very toxic compounds.\nSubstance/Parameter\nStandard(s)\nMinimum monitoring frequency\nMonitoring associated with\nTotal organic carbon (TOC)\nEN 1484\nOnce every month\nBAT 15\nChemical oxygen demand (COD)\nNo EN standard available\nTotal suspended solids (TSS)\nEN 872\nFluoride (F–)\nEN ISO 10304-1\nSulphate (SO4 2–)\nEN ISO 10304-1\nSulphide, easily released (S2–)\nNo EN standard available\nSulphite (SO3 2–)\nEN ISO 10304-3\nMetals and metalloids\nAs\nVarious EN standards available (e.g. EN ISO 11885 or EN ISO 17294-2)\nCd\nCr\nCu\nNi\nPb\nZn\nHg\nVarious EN standards available (e.g. EN ISO 12846 or EN ISO 17852)\nChloride (Cl–)\nVarious EN standards available (e.g. EN ISO 10304-1 or EN ISO 15682)\n—\nTotal nitrogen\nEN 12260\n—",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "TOC monitoring and COD monitoring are alternatives. TOC monitoring is the preferred option because it does not rely on the use of very toxic compounds."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2017/1442/annex/division/1/division/1.2/division/4",
    "retrieved_at": "2026-11-01T15:13:23.628050+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."
}