Air quality in Laos
Air quality index (AQI⁺) and PM2.5 air pollution in Laos • 22:42, May 06
Live most polluted city ranking
Real-time Laos most polluted city ranking
| # | Cities | AQI⁺ US | |
|---|---|---|---|
| 1 |  Vientiane | 137 | |
| 2 | Muang Phin | 96 | |
| 3 | Ban Donghen | 94 | |
| 4 | Viengthong | 78 | |
| 5 | Luang Prabang | 75 | |
| 6 | Muang Khamkeut | 73 | |
| 7 | Phongsali | 72 | |
| 8 | Muang Nale | 71 | |
| 9 | Champasak | 69 | |
| 10 | Thakhek | 66 |
2025 Laos most polluted city
| Vientiane, Vientiane | 79 |
Live cleanest city ranking
Real-time Laos cleanest city ranking
| # | Cities | AQI⁺ US | |
|---|---|---|---|
| 1 | Salavan | 58 | |
| 2 | Muang Phonsavan | 59 | |
| 3 | Sainyabuli | 62 | |
| 4 | Muang Phon-Hong | 65 | |
| 5 | Thakhek | 66 | |
| 6 | Phongsali | 68 | |
| 7 | Champasak | 69 | |
| 8 | Muang Nale | 71 | |
| 9 | Muang Khamkeut | 73 | |
| 10 | Luang Prabang | 75 |
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
