SmogRank / World / United Kingdom / England / April 2025
Most polluted cities in England, United Kingdom, April 2025
54 cities in England, United Kingdom ranked by their average PM2.5 over the 30 days. Worst: Hoo at 13.4 µg/m³, #632 of 2,896 cities in the world. Cleanest: Saltash at 6.4. 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.
- 1Hoo 0%
- 2Bexley 0%
- 3London 0%
- 3Burwell 0%
- 5Gillingham 0%
- 6Brightlingsea 0%
- 7Luton 0%
- 8Northampton 0%
- 9Southampton 0%
- 9Manchester 0%
- 9Hayes 0%
- 12Birminghamlow-cost sensors 0%
- 13Brighton 0%
- 14Andover 0%
- 15Portsmouth 0%
- 16Kingston upon Hull 0%
- 16Halesworth 0%
- 18Storrington 0%
- 18Sheringham 0%
- 18Leicester 0%
- 21Seaford 0%
- 21Derby 0%
- 23Speke 0%
- 23Leeds 0%
- 23Doncaster 0%
- 26Reading 0%
- 26Nottingham 0%
- 28Stoke-on-Trent 0%
- 28Irlam 0%
- 30Wigan 0%
- 31Liverpool 0%
- 32Street 0%
- 32Sheffield 0%
- 32Plymouth 0%
- 35Cheadle Hulme 0%
- 36Cannock 0%
- 36Barnsley 0%
- 38Norwich 0%
- 38Royal Leamington Spa 0%
- 38Bristol 0%
- 41Honiton 0%
- 42Preston 0%
- 42Oxford 0%
- 42Newcastle upon Tyne 0%
- 42Barnstaple 0%
- 46York 0%
- 47Chesterfield 0%
- 48Sunderland 0%
- 48Newton Abbot 0%
- 50High Peak 0%
- 51Warrington 0%
- 52Pickering 0%
- 52Middlesbrough 0%
- 54Saltash 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, April 2025 · All cities in United Kingdom, April 2025 · England now
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SmogRank, most polluted cities in England, United Kingdom, PM2.5, April 2025, smogrank.com/gb/region/england/history/2025-04 (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.