SmogRank / Countries / United Kingdom / April 2025
Most polluted cities in United Kingdom, April 2025
56 cities in United Kingdom ranked by their average PM2.5 over the 30 days. Worst: Canvey Island at 13.4 µg/m³, #343 of 2,286 cities in the world. Cleanest: Penicuik at 5.8. A city needs measurements on 70% of the days to be ranked.
- 1Canvey IslandEngland 13.4
- 2BexleyEngland 13.0
- 3LondonEngland 12.8
- 4NewmarketEngland 12.3
- 5GillinghamEngland 12.0
- 6Clacton-on-SeaEngland 11.8
- 7LutonEngland 11.7
- 8NorthamptonEngland 11.4
- 9SouthamptonEngland 11.3
- 9Manchesterlow-cost sensorsEngland 11.3
- 9HayesEngland 11.3
- 12Birminghamlow-cost sensorsEngland 11.0
- 13PortsmouthEngland 10.9
- 13BrightonEngland 10.9
- 15Kingston upon HullEngland 10.6
- 16AndoverEngland 10.5
- 17LeicesterEngland 10.3
- 18DerbyEngland 10.2
- 19SpekeEngland 10.1
- 19ReadingEngland 10.1
- 19LeedsEngland 10.1
- 19DoncasterEngland 10.1
- 23SeafordEngland 10.0
- 23NottinghamEngland 10.0
- 25Stoke-on-TrentEngland 9.9
- 25IrlamEngland 9.9
- 27WiganEngland 9.8
- 27BelfastNorthern Ireland 9.8
- 29LiverpoolEngland 9.7
- 30SheffieldEngland 9.6
- 30PlymouthEngland 9.6
- 30NewportWales 9.6
- 33Cheadle HulmeEngland 9.4
- 34BarnsleyEngland 9.3
- 35Royal Leamington SpaEngland 9.2
- 35BristolEngland 9.2
- 37CannockEngland 9.1
- 38NorwichEngland 9.0
- 39PrestonEngland 8.7
- 39Newcastle upon TyneEngland 8.7
- 39BarnstapleEngland 8.7
- 42YorkEngland 8.6
- 43OxfordEngland 8.5
- 43ChesterfieldEngland 8.5
- 45SunderlandEngland 8.4
- 46High PeakEngland 8.1
- 47Newton AbbotEngland 7.9
- 48WarringtonEngland 7.8
- 49GrangemouthScotland 7.4
- 49Briton FerryWales 7.4
- 51GlasgowScotland 7.1
- 52MiddlesbroughEngland 6.7
- 52EdinburghScotland 6.7
- 54SaltashEngland 6.2
- 55DerryNorthern Ireland 6.1
- 56PenicuikScotland 5.8
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+