SmogRank / Countries / United Kingdom
Most polluted cities in United Kingdom
5 measured cities ranked by PM2.5, last 30 days. Worst: London at 7.0 µg/m³, #855 in the world.
| # | City | µg/m³ | |
|---|---|---|---|
| 1 | London England | 7.0 | |
| 2 | Birmingham low-cost sensorsEngland | 3.9 | |
| 3 | Westbury low-cost sensorsEngland | 2.9 | |
| 4 | Manchester low-cost sensorsEngland | 2.9 | |
| 5 | Cambridge low-cost sensorsEngland | 1.5 |
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data
Estimated: cities without a monitor
United Kingdom cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.
| City | 7-day estimate |
|---|---|
| Glasgow estimated | ≈ 5 µg/m³ |
| Sheffield estimated | ≈ 5 µg/m³ |
| Leeds estimated | ≈ 9 µg/m³ |
| Edinburgh estimated | ≈ 6 µg/m³ |
| Liverpool estimated | ≈ 7 µg/m³ |
| Bristol estimated | ≈ 7 µg/m³ |
| Cardiff estimated | ≈ 5 µg/m³ |
| Leicester estimated | ≈ 7 µg/m³ |
| Bradford estimated | ≈ 6 µg/m³ |
| Belfast estimated | ≈ 5 µg/m³ |
| Coventry estimated | ≈ 7 µg/m³ |
| Birkenhead estimated | ≈ 5 µg/m³ |
| Nottingham estimated | ≈ 5 µg/m³ |
| Islington estimated | ≈ 9 µg/m³ |
| Kingston upon Hull estimated | ≈ 8 µg/m³ |
| Preston estimated | ≈ 7 µg/m³ |
| Swansea estimated | ≈ 5 µg/m³ |
| Newcastle upon Tyne estimated | ≈ 7 µg/m³ |
| Southend-on-Sea estimated | ≈ 8 µg/m³ |
| Derby estimated | ≈ 5 µg/m³ |
| Southampton estimated | ≈ 7 µg/m³ |
| Wolverhampton estimated | ≈ 6 µg/m³ |
| Plymouth estimated | ≈ 7 µg/m³ |
| Stoke-on-Trent estimated | ≈ 6 µg/m³ |
| Milton Keynes estimated | ≈ 6 µg/m³ |
| City of Westminster estimated | ≈ 9 µg/m³ |
| Northampton estimated | ≈ 6 µg/m³ |
| Oldham estimated | ≈ 7 µg/m³ |
| Luton estimated | ≈ 8 µg/m³ |
| Barking estimated | ≈ 9 µg/m³ |
| Archway estimated | ≈ 9 µg/m³ |
| Swindon estimated | ≈ 6 µg/m³ |
| Dudley estimated | ≈ 5 µg/m³ |
| Aberdeen estimated | ≈ 6 µg/m³ |
| Sutton estimated | ≈ 8 µg/m³ |
| St Helens estimated | ≈ 7 µg/m³ |
| Ipswich estimated | ≈ 8 µg/m³ |
| Wigan estimated | ≈ 7 µg/m³ |
| Croydon estimated | ≈ 8 µg/m³ |
| Warrington estimated | ≈ 7 µg/m³ |
Updated 2026-10-01 14:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.