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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 | Carmarthen | 44 |
| 2 | Cwmbran | 36 |
| 3 | Cardiff | 35 |
| 4 | Caerphilly | 33 |
| 5 | Port Talbot | 33 |
| 6 | Newport | 31 |
| 7 | Ruabon | 29 |
| 8 | Templeton | 29 |
| 9 | Pontypridd | 27 |
| 10 | Blackwood | 25 |
(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 | 8 |
| 2 | Monmouth | 17 |
| 3 | Wrexham | 17 |
| 4 | Aberystwyth | 20 |
| 5 | Dyserth | 23 |
| 6 | Blackwood | 25 |
| 7 | Bridgend | 25 |
| 8 | Chepstow | 25 |
| 9 | Fochriw | 25 |
| 10 | Pontypridd | 27 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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Unhealthy for sensitive groups
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News
The latest air quality news and resources.
Wales air quality data attribution
11Contributors
- Welsh Government
19 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?
- Carmarthen 44
- Cwmbran 36
- Cardiff 35
- Caerphilly 33
- Port Talbot 33
- Newport 31
- Ruabon 29
- Templeton 29
- Penarth 28
- Crosskeys 27
- Crumlin 27
- Mountain Ash 27
- Pontypridd 27
- Taibach 27
- Blackwood 25
- Bridgend 25
- Chepstow 25
- Fochriw 25
- Landore 25
- Morriston 25
- Neath 25
- Swansea 25
- Bishops Moat 24
- Rhyl 24
- Dyserth 23
- Aberystwyth 20
- Monmouth 17
- Wrexham 17
- Deiniolen 16
- Llanfairpwllgwyngyll 15
- Benllech 13
- Llanerchymedd 12
- Cemaes Bay 11
- Chirk 8
AQI US, Metric