{
  "url": "https://openlegislation.uk/air-quality-standards-regulations-2010/schedule-4",
  "json_url": "https://openlegislation.uk/air-quality-standards-regulations-2010/schedule-4.json",
  "legislation": "uksi/2010/1001",
  "legislation_title": "The Air Quality Standards Regulations 2010",
  "legislation_url": "https://openlegislation.uk/air-quality-standards-regulations-2010",
  "path": "schedule/4",
  "kind": "schedule",
  "number": "4",
  "heading": "Long term objectives for ozone",
  "text": "Objective\nAveraging period\nLong term objective\nProtection of human health\nMaximum daily eight hour mean within a calendar year\n120 μg/m3\nProtection of vegetation\nMay to July\nAOT 40 (calculated from 1h values) 6000 μg/m3∙h",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2010/1001/schedule/4",
    "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."
}