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Air quality in Wales
Air quality index (AQI) and PM2.5 air pollution in Wales
LIVE AQI CITY RANKING
Real-time Wales
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Pontypridd | 97 |
| 2 | Monmouth | 86 |
| 3 | Aberystwyth | 85 |
| 4 | Dyserth | 85 |
| 5 | Carmarthen | 79 |
| 6 | Blackwood | 77 |
| 7 | Cardiff | 76 |
| 8 | Caerphilly | 75 |
| 9 | Fochriw | 75 |
| 10 | Templeton | 75 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
11 Contributors
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LIVE AQI CITY RANKING
Real-time Wales
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Chirk | 16 |
| 2 | Bridgend | 56 |
| 3 | Port Talbot | 60 |
| 4 | Newport | 64 |
| 5 | Ruabon | 65 |
| 6 | Chepstow | 69 |
| 7 | Wrexham | 71 |
| 8 | Caerphilly | 75 |
| 9 | Fochriw | 75 |
| 10 | Templeton | 75 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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News
The latest air quality news and resources.
Wales air quality data attribution
11Contributors
- Welsh Government
22 stations
- UK Air Quality
1 station
3 Government Contributors
- Milking Solutions
1 station
Corporate Contributor
- Craig YrHesg
2 stations
- controlsjedi
1 station
- DJ
1 station
3 Individual Contributors
4 Anonymous contributors4 stations
4 Anonymous Contributors
Which is the most polluted city in Wales?
- Pontypridd 97
- Monmouth 86
- Aberystwyth 85
- Dyserth 85
- Carmarthen 79
- Blackwood 77
- Cardiff 76
- Caerphilly 75
- Fochriw 75
- Templeton 75
- Benllech 73
- Deiniolen 73
- Llanfairpwllgwyngyll 73
- Cemaes Bay 72
- Crosskeys 72
- Crumlin 72
- Llanerchymedd 72
- Penarth 71
- Rhyl 71
- Wrexham 71
- Bishops Moat 70
- Chepstow 69
- Morriston 69
- Mountain Ash 69
- Neath 69
- Swansea 69
- Taibach 69
- Ruabon 65
- Newport 64
- Port Talbot 60
- Bridgend 56
- Cwmbran 22
- Landore 21
- Chirk 16
AQI US, Metric