Air quality in Wales
Air quality index (AQI⁺) and PM2.5 air pollution in Wales • 19:17, Nov 13
Live most polluted city ranking
Real-time Wales most polluted city ranking
Wildfires in Wales
Real-time informationActive fire
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Learn more about global air quality
Which is the most polluted city in Wales?
- Swansea68
- Wrexham62
- Monmouth59
- Chepstow58
- Newport55
- Carmarthen36
- Cwmbran36
- Crosskeys35
- Pontypridd35
- Caerphilly34
- Crumlin34
- Penarth34
- Blackwood33
- Cardiff33
- Fochriw31
- Mountain Ash31
- Bridgend29
- Morriston28
- Neath28
- Rhos on Sea28
- Taibach28
- Landore27
- Bishops Moat22
- Port Talbot22
- Ruabon22
- Templeton21
- Cemaes Bay18
- Llanerchymedd18
- Benllech17
- Chirk17
- Deiniolen17
- Llanfairpwllgwyngyll17
- Rhyl17
- Aberystwyth13
- Dyserth12









