{
  "url": "https://openlegislation.uk/air-quality-limit-values-scotland-regulations-2001/schedule-5/part-I/paragraph-wrapper11n1",
  "json_url": "https://openlegislation.uk/air-quality-limit-values-scotland-regulations-2001/schedule-5/part-I/paragraph-wrapper11n1.json",
  "legislation": "ssi/2001/224",
  "legislation_title": "The Air Quality Limit Values (Scotland) Regulations 2001",
  "legislation_url": "https://openlegislation.uk/air-quality-limit-values-scotland-regulations-2001",
  "path": "schedule/5/part/I/paragraph/wrapper11n1",
  "kind": "paragraph",
  "number": null,
  "heading": null,
  "text": "The following data-quality objectives for the required accuracy of assessment methods, of minimum time coverage and of data capture of measurement are laid down to guide quality assurance programmes.\nSulphur dioxide, nitrogen dioxide and oxides of nitrogen\nParticulate matter and lead\nContinuous measurement\nAccuracy\n15%\n25%\nMinimum data capture\n90%\n90%\nIndicative measurement\nAccuracy\n25%\n50%\nMinimum data capture\n90%\n90%\nMinimum time coverage\n14% (One measurement a week at random, evenly distributed over the year, or eight weeks evenly distributed over the year.)\n14% (One measurement a week at random, evenly distributed over the year, or eight weeks evenly distributed over the year.)\nModelling\nAccuracy:\nHourly averages\n50%–60%\nDaily averages\n50%\nAnnual averages\n30%\n50%\nObjective estimation\nAccuracy:\n75%\n100%",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [
    {
      "type": "am (19.1.2003)",
      "affecting": "ssi/2002/556",
      "affecting_title": "The Air Quality Limit Values (Scotland) Amendment Regulations 2002"
    }
  ],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/ssi/2001/224/schedule/5/part/I/paragraph/wrapper11n1",
    "retrieved_at": "2026-10-28T22:46:13.462583+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."
}