{
  "url": "https://openlegislation.uk/draft-air-quality-england-regulations-2000/schedule",
  "json_url": "https://openlegislation.uk/draft-air-quality-england-regulations-2000/schedule.json",
  "legislation": "ukdsi/2000/0110987640",
  "legislation_title": "The Air Quality (England) Regulations 2000",
  "legislation_url": "https://openlegislation.uk/draft-air-quality-england-regulations-2000",
  "path": "schedule",
  "kind": "schedule",
  "number": null,
  "heading": "AIR QUALITY OBJECTIVES",
  "text": "TABLE\nSubstance\nAir quality objective levels\nAir quality objective dates\nBenzene\n16.25 micrograms per cubic metre or less, when expressed as a running annual mean\n31st December 2003\n1,3 –Butadiene\n2.25 micrograms per cubic metre or less, when expressed as a running annual mean\n31st December 2003\nCarbon monoxide\n11.6 milligrams per cubic metre or less, when expressed as a running 8 hour mean\n31st December 2003\nLead\n0.5 micrograms per cubic metre or less, when expressed as an annual mean\n0.25 micrograms per cubic metre or less, when expressed as an annual mean\n31st December 2004\n31st December 2008\nNitrogen dioxide\n200 micrograms per cubic metre, when expressed as an hourly mean, not to be exceeded more than 18 times a year\n40 micrograms per cubic metre or less, when expressed as an annual mean\n31st December 2005\n31st December 2005\nPM10\n50 micrograms per cubic metre or less, when expressed as a 24 hour mean, not to be exceeded more than 35 times a year\n40 micrograms per cubic metre or less, when expressed as an annual mean\n31st December 2004\n31st December 2004\nSulphur dioxide\n125 micrograms per cubic metre or less, when expressed as a 24 hour mean, not to be exceeded more than 3 times a year\n350 micrograms per cubic metre or less, when expressed as an hourly mean, not to be exceeded more than 24 times a year\n266 micrograms per cubic metre or less, when expressed as a 15 minute mean, not to be exceeded more than 35 times a year\n31st December 2004\n31st December 2004\n31st December 2005",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/ukdsi/2000/0110987640/schedule",
    "retrieved_at": "2026-10-30T15:19:07.588390+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."
}