League tables · England & Wales
League table · Fine particles (PM2.5)
Cleanest air in Hertfordshire
Where is the air cleanest? All 10 council areas in Hertfordshire ranked on fine particles (pm2.5) (µg/m³, population-weighted). Source: Defra modelled background PM2.5, 2024 (WHO guideline 5 µg/m³).
Fastest broadbandMost affordable homesFastest-rising pricesCleanest airLowest recorded crimeLeast deprived (England)
| # | Area | Fine particles (PM2.5) | England & Wales | |
|---|---|---|---|---|
| 1 | East Hertfordshire | 7.2 µg/m³ | 206th | |
| 2 | North Hertfordshire | 7.2 µg/m³ | 210th | |
| 3 | Stevenage | 7.2 µg/m³ | 213th | |
| 4 | Dacorum | 7.3 µg/m³ | 236th | |
| 5 | Welwyn Hatfield | 7.5 µg/m³ | 257th | |
| 6 | St Albans | 7.5 µg/m³ | 259th | |
| 7 | Broxbourne | 7.6 µg/m³ | 265th | |
| 8 | Three Rivers | 7.6 µg/m³ | 267th | |
| 9 | Watford | 7.8 µg/m³ | 276th | |
| 10 | Hertsmere | 7.8 µg/m³ | 277th |
Check a street in Hertfordshire
These figures are for the whole area. The free check reads one postcode: flood, crime, noise and the station, in seconds.