SmogRank / World / United Kingdom / England / February 2026
Most polluted cities in England, United Kingdom, February 2026
56 cities in England, United Kingdom ranked by their average PM2.5 over the 28 days. Worst: Northampton at 13.4 µg/m³, #891 of 2,841 cities in the world. Cleanest: Newton Abbot at 3.9. 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.
- 1Cambridgelow-cost sensors 7%
- 2Sheringham 4%
- 3Northampton 0%
- 4Leeds 0%
- 5Scunthorpe 0%
- 5Norwich 0%
- 5Kingston upon Hull 0%
- 8Doncaster 0%
- 9Sunderland 0%
- 10Sheffield 0%
- 10Nottingham 0%
- 12Derby 0%
- 13Barnsley 0%
- 14London 0%
- 15Newcastle upon Tyne 0%
- 15Leicester 0%
- 15Halesworth 0%
- 15Chesterfield 0%
- 19York 0%
- 20Birminghamlow-cost sensors 0%
- 21Manchester 0%
- 22Plymouth 0%
- 22Luton 0%
- 24Wigan 0%
- 24Stoke-on-Trent 0%
- 26Hayes 0%
- 26Brightlingsea 0%
- 28Bexley 0%
- 29Hoo 0%
- 29Cannock 0%
- 31Royal Leamington Spa 0%
- 32Liverpool 0%
- 32Dartford 0%
- 34Brighton 0%
- 35Warrington 0%
- 35Preston 0%
- 35Burwell 0%
- 38Speke 0%
- 39Storrington 0%
- 39Cheadle Hulme 0%
- 41Reading 0%
- 41Gillingham 0%
- 43Southampton 0%
- 44Oxford 0%
- 45Seaford 0%
- 45Portsmouth 0%
- 45Bristol 0%
- 48Irlam 0%
- 48Barnstaple 0%
- 50Middlesbrough 0%
- 51Andover 0%
- 51High Peak 0%
- 53Street 0%
- 54Honiton 0%
- 55Saltash 0%
- 56Newton Abbot 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, February 2026 · All cities in United Kingdom, February 2026 · England now
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SmogRank, most polluted cities in England, United Kingdom, PM2.5, February 2026, smogrank.com/gb/region/england/history/2026-02 (accessed 7 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.