{
  "url": "https://openlegislation.uk/eu-directive-2008-50/article-5",
  "json_url": "https://openlegislation.uk/eu-directive-2008-50/article-5.json",
  "legislation": "eudr/2008/50",
  "legislation_title": "Directive 2008/50/EC of the European Parliament and of the Council of 21 May 2008 on ambient air quality and cleaner air for Europe",
  "legislation_url": "https://openlegislation.uk/eu-directive-2008-50",
  "path": "article/5",
  "kind": "article",
  "number": "5",
  "heading": "Assessment regime",
  "text": "1. The upper and lower assessment thresholds specified in Section A of Annex II shall apply to sulphur dioxide, nitrogen dioxide and oxides of nitrogen, particulate matter (PM10 and PM2,5), lead, benzene and carbon monoxide.\nEach zone and agglomeration shall be classified in relation to those assessment thresholds.\n2. The classification referred to in paragraph 1 shall be reviewed at least every five years in accordance with the procedure laid down in Section B of Annex II.\nHowever, classifications shall be reviewed more frequently in the event of significant changes in activities relevant to the ambient concentrations of sulphur dioxide, nitrogen dioxide or, where relevant, oxides of nitrogen, particulate matter (PM10, PM2,5), lead, benzene or carbon monoxide.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudr/2008/50/article/5",
    "retrieved_at": "2026-11-01T15:22:21.245568+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."
}