League tables · England & Wales
League table · Fine particles (PM2.5)
Cleanest air in Wales
Where is the air cleanest? All 22 council areas in Wales ranked on fine particles (pm2.5) (µg/m³, population-weighted). Source: Defra modelled background PM2.5, 2024 (WHO guideline 5 µg/m³).
| # | Area | Fine particles (PM2.5) | England & Wales | |
|---|---|---|---|---|
| 1 | Pembrokeshire | 3.9 µg/m³ | 1st | |
| 2 | Ceredigion | 4.0 µg/m³ | 2nd | |
| 3 | Isle of Anglesey | 4.2 µg/m³ | 4th | |
| 4 | Gwynedd | 4.3 µg/m³ | 5th | |
| 5 | Carmarthenshire | 4.3 µg/m³ | 6th | |
| 6 | Powys | 4.5 µg/m³ | 8th | |
| 7 | Conwy | 4.7 µg/m³ | 12th | |
| 8 | Swansea | 4.8 µg/m³ | 13th | |
| 9 | Neath Port Talbot | 4.8 µg/m³ | 14th | |
| 10 | Denbighshire | 4.9 µg/m³ | 16th | |
| 11 | Bridgend | 4.9 µg/m³ | 17th | |
| 12 | Merthyr Tydfil | 5.1 µg/m³ | 20th | |
| 13 | Vale of Glamorgan | 5.1 µg/m³ | 22nd | |
| 14 | Blaenau Gwent | 5.1 µg/m³ | 23rd | |
| 15 | Rhondda Cynon Taf | 5.2 µg/m³ | 25th | |
| 16 | Monmouthshire | 5.4 µg/m³ | 33rd | |
| 17 | Caerphilly | 5.5 µg/m³ | 42nd | |
| 18 | Flintshire | 5.5 µg/m³ | 43rd | |
| 19 | Wrexham | 5.5 µg/m³ | 48th | |
| 20 | Torfaen | 5.7 µg/m³ | 50th | |
| 21 | Cardiff | 5.9 µg/m³ | 57th | |
| 22 | Newport | 6.0 µg/m³ | 62nd |
Check a street in Wales
These figures are for the whole area. The free check reads one postcode: flood, crime, noise and the station, in seconds.