{
  "url": "https://openlegislation.uk/air-quality-standards-wales-regulations-2007/schedule-8/paragraph-16",
  "json_url": "https://openlegislation.uk/air-quality-standards-wales-regulations-2007/schedule-8/paragraph-16.json",
  "legislation": "wsi/2007/717",
  "legislation_title": "The Air Quality Standards (Wales) Regulations 2007",
  "legislation_url": "https://openlegislation.uk/air-quality-standards-wales-regulations-2007",
  "path": "schedule/8/paragraph/16",
  "kind": "paragraph",
  "number": "16",
  "heading": null,
  "text": "The data quality objectives set out in the table and paragraphs below, for allowed uncertainty of assessment methods, and of minimum time coverage and of data capture of measurement, are provided to guide quality-assurance programmes—\nFor ozone, NO and NO2 assessed at ozone sampling points\nContinuous fixed measurement\nUncertainty of individual measurements\n15%\nMinimum data capture\n90% during summer; 75% during winter\nIndicative measurement\nUncertainty of individual measurements\n30%\nMinimum data capture\n90%\nMinimum time coverage\n>10% during summer\nModelling\nUncertainty\n1 hour averages (daytime)\n50%\n8 hours daily maximum\n50%\nObjective estimation\nUncertainty\n75%",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/wsi/2007/717/schedule/8/paragraph/16",
    "retrieved_at": "2026-10-29T00:01:33.213395+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."
}