Independent report

UK air quality: supplementary modelling assessment for 2024

Technical report and data on UK supplementary modelling assessment under the Air Quality Standards Regulations 2010.

• From: Department for Environment, Food & Rural Affairs
• Published: 12 March 2026

Documents

Technical report on UK supplementary modelling assessment: 2024

PDF, 12.8 MB, 244 pages

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Non-technical annex on UK supplementary modelling assessment: 2024

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PM10 source apportionment: 2024 base year

MS Excel Spreadsheet, 12.4 MB

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PM2.5 source apportionment: 2024 base year

MS Excel Spreadsheet, 12.1 MB

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NOx source apportionment: 2024 base year

MS Excel Spreadsheet, 4.76 MB

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GIS shapefile: 2024 NO2 base year

ZIP, 13.8 MB

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Details

The United Kingdom’s (UK) air quality regulations require that the UK undertakes air quality assessments on an annual basis under the Air Quality Standards Regulations 2010.

The assessment takes the form of comparisons of measured and modelled air pollutant concentrations with the limit values, critical levels, target values and long-term objectives set out in the regulations.

The UK annual air quality assessment for the year 2024 has been carried out in accordance with the requirements of the regulations. The results of the 2024 assessment are available in the Air pollution in the UK 2024 report.

Published 12 March 2026