Crap Towns / South Merstham / Air quality
How dirty is the air in South Merstham?
People in South Merstham breathed an average of 11.8 micrograms of nitrogen dioxide per cubic metre in 2024, 46% 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) | 11.8 | 8.1 | 10 |
| Fine particles (PM2.5) | 7.5 | 6.7 | 5 |
| Town | Distance | Nitrogen dioxide, µg/m³ |
|---|---|---|
| Croydon | 11.6 km | 14.2 |
| Sutton | 11.7 km | 13.5 |
| South Merstham | – | 11.8 |
| Horley | 9.4 km | 11.4 |
| Banstead | 8.0 km | 10.5 |
| Redhill | 3.7 km | 10.2 |
| Tadworth and Epsom Downs | 8.3 km | 10.0 |
| Caterham | 5.2 km | 9.9 |
| Reigate | 4.5 km | 9.5 |
| Warlingham | 8.3 km | 9.4 |
| Oxted | 10.3 km | 8.8 |
| The typical town | – | 8.1 |