Crap Towns / Harrow / Air quality
How dirty is the air in Harrow?
People in Harrow breathed an average of 14.0 micrograms of nitrogen dioxide per cubic metre in 2024, 1.7 times the typical town's 8.1, and 8.3 of fine particles (PM2.5), 24% 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) | 14.0 | 8.1 | 10 |
| Fine particles (PM2.5) | 8.3 | 6.7 | 5 |
| Town | Distance | Nitrogen dioxide, µg/m³ |
|---|---|---|
| Brent | 6.7 km | 17.9 |
| Ealing | 8.4 km | 17.5 |
| Barnet | 9.3 km | 15.4 |
| Hillingdon | 9.6 km | 15.3 |
| Harrow | – | 14.0 |
| Borehamwood | 8.3 km | 12.2 |
| Watford | 7.2 km | 12.0 |
| Bushey | 6.2 km | 11.7 |
| Moor Park | 7.0 km | 10.9 |
| Rickmansworth | 9.8 km | 10.6 |
| Radlett | 9.7 km | 10.3 |
| The typical town | – | 8.1 |