Air quality in Laos
Air quality index (AQI⁺) and PM2.5 air pollution in Laos • 14:26, May 09
Live most polluted city ranking
Real-time Laos most polluted city ranking
| # | Cities | AQI⁺ US | |
|---|---|---|---|
| 1 |  Champasak | 80 | |
| 2 | Vientiane | 76 | |
| 3 | Muang Phon-Hong | 72 | |
| 4 | Salavan | 61 | |
| 5 | Thakhek | 58 | |
| 6 | Ban Donghen | 44 | |
| 7 | Muang Phin | 43 | |
| 8 | Muang Khamkeut | 37 | |
| 9 | Phongsali | 24 | |
| 10 | Viengthong | 17 |
2025 Laos most polluted city
| Vientiane, Vientiane | 79 |
Live cleanest city ranking
Real-time Laos cleanest city ranking
| # | Cities | AQI⁺ US | |
|---|---|---|---|
| 1 | Luang Prabang | 8 | |
| 2 | Muang Phonsavan | 9 | |
| 3 | Muang Nale | 10 | |
| 4 | Phongsali | 11 | |
| 5 | Viengthong | 11 | |
| 6 | Sainyabuli | 26 | |
| 7 | Muang Khamkeut | 34 | |
| 8 | Muang Phin | 41 | |
| 9 | Ban Donghen | 43 | |
| 10 | Vientiane | 56 |
2025 Laos cleanest city
| Muang Khong, Champasak | 53 |
2025 Laos air quality
2025 country air quality average
How polluted is Laos?
PM2.5 concentration is currently 4.5 times the World Health Organization annual PM2.5 guideline value.
2025 AQI⁺ country ranking
Which country had the worst air quality in 2025?
Worldwide PM2.5 ranking
2025 Laos global rank in air pollution
30/143
