Crap Towns / Ashtead / Air quality
How dirty is the air in Ashtead?
People in Ashtead breathed an average of 10.8 micrograms of nitrogen dioxide per cubic metre in 2024, 33% higher than the typical town's 8.1, and 7.5 of fine particles (PM2.5), 12% higher than the typical town's 6.7. Both are over the World Health Organization's guidelines of 10 and 5.
| Pollutant | Here | Typical town | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 10.8 | 8.1 | 10 |
| Fine particles (PM2.5) | 7.5 | 6.7 | 5 |
| Town | Distance | Nitrogen dioxide, µg/m³ |
|---|---|---|
| West Molesey | 8.3 km | 13.4 |
| Worcester Park and Stoneleigh | 7.8 km | 13.1 |
| Ewell | 5.8 km | 12.3 |
| Esher | 7.8 km | 12.3 |
| Epsom | 3.3 km | 11.4 |
| Leatherhead | 2.6 km | 11.3 |
| Ashtead | – | 10.8 |
| Cobham | 6.4 km | 10.7 |
| Banstead | 7.4 km | 10.5 |
| Tadworth and Epsom Downs | 5.1 km | 10.0 |
| Great Bookham and Fetcham | 6.0 km | 8.5 |
| The typical town | – | 8.1 |