SmogRank / World / United Kingdom / England / July 2025
Most polluted cities in England, United Kingdom, July 2025
56 cities in England, United Kingdom ranked by their average PM2.5 over the 31 days. Worst: Speke at 8.4 µg/m³, #1,627 of 2,832 cities in the world. Cleanest: Saltash at 3.5. A city needs measurements on 70% of the days to be ranked.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
- 1Speke 0%
- 2Dartford 0%
- 3Northampton 0%
- 4London 0%
- 5Manchester 0%
- 6Scunthorpe 0%
- 7Kingston upon Hull 0%
- 8Stoke-on-Trent 0%
- 8Leeds 0%
- 10Cheadle Hulme 0%
- 11Doncaster 0%
- 12Hoo 0%
- 12Bexley 0%
- 14Southampton 0%
- 14Preston 0%
- 16Plymouth 0%
- 16Leicester 0%
- 18Luton 0%
- 18Derby 0%
- 18Birminghamlow-cost sensors 0%
- 21Sheffield 0%
- 21Nottingham 0%
- 21Newcastle upon Tyne 0%
- 21Bristol 0%
- 21Brightlingsea 0%
- 26Sheringham 0%
- 26Norwich 0%
- 26Hayes 0%
- 26Brighton 0%
- 30Wigan 0%
- 30Royal Leamington Spa 0%
- 32Portsmouth 0%
- 32Irlam 0%
- 32Cannock 0%
- 32Burwell 0%
- 32Barnsley 0%
- 37Storrington 0%
- 38York 0%
- 38Sunderland 0%
- 38Liverpool 0%
- 38Chesterfield 0%
- 42Seaford 0%
- 42Halesworth 0%
- 44Barnstaple 0%
- 45Reading 0%
- 45Andover 0%
- 47High Peak 0%
- 48Middlesbrough 0%
- 48Honiton 0%
- 50Street 0%
- 50Oxford 0%
- 52Warrington 0%
- 52Gillingham 0%
- 54Pickering 0%
- 55Newton Abbot 0%
- 56Saltash 0%
Low-cost sensors: consumer units, counted only in cities with no government-grade monitor; they read close to reference monitors on the whole, but 15 to 25% high in humid air. How we use them.
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
All cities in the world, July 2025 · All cities in United Kingdom, July 2025 · England now
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SmogRank, most polluted cities in England, United Kingdom, PM2.5, July 2025, smogrank.com/gb/region/england/history/2025-07 (accessed 6 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.