{
  "url": "https://openlegislation.uk/air-quality-standards-regulations-2010/regulation-15",
  "json_url": "https://openlegislation.uk/air-quality-standards-regulations-2010/regulation-15.json",
  "legislation": "uksi/2010/1001",
  "legislation_title": "The Air Quality Standards Regulations 2010",
  "legislation_url": "https://openlegislation.uk/air-quality-standards-regulations-2010",
  "path": "regulation/15",
  "kind": "regulation",
  "number": "15",
  "heading": "Background monitoring",
  "text": "(1) The Secretary of State must operate background sampling points to provide indicative measurements of—\n(a) concentrations of—\n(i) arsenic, cadmium, nickel and benzo(a)pyrene,\n(ii) the polycyclic aromatic hydrocarbons in paragraph (1) of regulation 14,\n(iii) total gaseous mercury.\n(b) total depositions of—\n(i) arsenic, cadmium, nickel and benzo(a)pyrene within the PM10 fraction;\n(ii) the polycyclic aromatic hydrocarbons in paragraph (1) of regulation 14,\n(iii) mercury.\n(2) For the purposes of paragraph (1) the Secretary of State must ensure that—\n(a) at least one sampling point is installed for every 100,000 km2 ; and\n(b) each sampling point is located in accordance with Annex III to Directive 2004/107/EC.\n(3) In this Regulation “total gaseous mercury” means elemental mercury vapour (Hg0) and reactive gaseous mercury, that is, water-soluble mercury species with sufficiently high vapour pressure to exist in the gas phase.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2010/1001/regulation/15",
    "retrieved_at": "2026-10-29T02:45:20.255559+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."
}