{
  "url": "https://openlegislation.uk/eu-decision-2017-2117/annex/division-1/division-1.1/division-BAT+2",
  "json_url": "https://openlegislation.uk/eu-decision-2017-2117/annex/division-1/division-1.1/division-BAT+2.json",
  "legislation": "eudn/2017/2117",
  "legislation_title": "Commission Implementing Decision (EU) 2017/2117 of 21 November 2017 establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for the production of large volume organic chemicals (notified under document C(2017) 7469) (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2017-2117",
  "path": "annex/division/1/division/1.1/division/BAT+2",
  "kind": "division",
  "number": "BAT 2:",
  "heading": "BAT is to monitor channelled emissions to air other than from process furnaces/heaters in accordance with EN standards and with at least the minimum frequency given in the table below. 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": "The monitoring applies where the pollutant is present in the waste gas based on the inventory of waste gas streams specified by the CWW BAT conclusions.\nThe minimum monitoring frequency for periodic measurements may be reduced to once every year, if the emission levels are proven to be sufficiently stable.\nAll (other) processes/sources where the pollutant is present in the waste gas based on the inventory of waste gas streams specified by the CWW BAT conclusions.\nEN 15058 and the sampling period need adaptation so that the measured values are representative of the whole decoking cycle.\nEN 13284-1 and the sampling period need adaptation so that the measured values are representative of the whole decoking cycle.\nThe monitoring applies where the chlorine and/or chlorinated compounds are present in the waste gas and thermal treatment is applied\nSubstance/Parameter\nProcesses/Sources\nStandard(s)\nMinimum monitoring frequency\nMonitoring associated with\nBenzene\nWaste gas from the cumene oxidation unit in phenol production\nNo EN standard available\nOnce every month\nBAT 57\nAll other processes/sources\nBAT 10\nCl2\nTDI/MDI\nNo EN standard available\nOnce every month\nBAT 66\nEDC/VCM\nBAT 76\nCO\nThermal oxidiser\nEN 15058\nOnce every month\nBAT 13\nLower olefins (decoking)\nNo EN standard available\nOnce every year or once during decoking, if decoking is less frequent\nBAT 20\nEDC/VCM (decoking)\nBAT 78\nDust\nLower olefins (decoking)\nNo EN standard available\nOnce every year or once during decoking, if decoking is less frequent\nBAT 20\nEDC/VCM (decoking)\nBAT 78\nAll other processes/sources\nEN 13284-1\nOnce every month\nBAT 11\nEDC\nEDC/VCM\nNo EN standard available\nOnce every month\nBAT 76\nEthylene oxide\nEthylene oxide and ethylene glycols\nNo EN standard available\nOnce every month\nBAT 52\nFormaldehyde\nFormaldehyde\nNo EN standard available\nOnce every month\nBAT 45\nGaseous chlorides, expressed as HCl\nTDI/MDI\nEN 1911\nOnce every month\nBAT 66\nEDC/VCM\nBAT 76\nAll other processes/sources\nBAT 12\nNH3\nUse of SCR or SNCR\nNo EN standard available\nOnce every month\nBAT 7\nNOX\nThermal oxidiser\nEN 14792\nOnce every month\nBAT 13\nPCDD/F\nTDI/MDI\nEN 1948-1, -2, and -3\nOnce every 6 months\nBAT 67\nPCDD/F\nEDC/VCM\nBAT 77\nSO2\nAll processes/sources\nEN 14791\nOnce every month\nBAT 12\nTetrachloromethane\nTDI/MDI\nNo EN standard available\nOnce every month\nBAT 66\nTVOC\nTDI/MDI\nEN 12619\nOnce every month\nBAT 66\nEO (desorption of CO2 from scrubbing medium)\nOnce every 6 months\nBAT 51\nFormaldehyde\nOnce every month\nBAT 45\nWaste gas from the cumene oxidation unit in phenol production\nEN 12619\nOnce every month\nBAT 57\nWaste gas from other sources in phenol production when not combined with other waste gas streams\nOnce every year\nWaste gas from the oxidation unit in hydrogen peroxide production\nOnce every month\nBAT 86\nEDC/VCM\nOnce every month\nBAT 76\nAll other processes/sources\nOnce every month\nBAT 10\nVCM\nEDC/VCM\nNo EN standard available\nOnce every month\nBAT 76",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "The monitoring applies where the pollutant is present in the waste gas based on the inventory of waste gas streams specified by the CWW BAT conclusions."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "The minimum monitoring frequency for periodic measurements may be reduced to once every year, if the emission levels are proven to be sufficiently stable."
    },
    {
      "type": "footnote",
      "label": "f3",
      "text": "All (other) processes/sources where the pollutant is present in the waste gas based on the inventory of waste gas streams specified by the CWW BAT conclusions."
    },
    {
      "type": "footnote",
      "label": "f4",
      "text": "EN 15058 and the sampling period need adaptation so that the measured values are representative of the whole decoking cycle."
    },
    {
      "type": "footnote",
      "label": "f5",
      "text": "EN 13284-1 and the sampling period need adaptation so that the measured values are representative of the whole decoking cycle."
    },
    {
      "type": "footnote",
      "label": "f6",
      "text": "The monitoring applies where the chlorine and/or chlorinated compounds are present in the waste gas and thermal treatment is applied"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2017/2117/annex/division/1/division/1.1/division/BAT+2",
    "retrieved_at": "2026-11-01T15:13:18.480772+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."
}