Air quality in Laos
Air quality index (AQI⁺) and PM2.5 air pollution in Laos • 23:18, Jun 15
Live most polluted city ranking
Real-time Laos most polluted city ranking
| # | Cities | AQI⁺ US | |
|---|---|---|---|
| 1 |  Viengthong | 50 | |
| 2 | Vientiane | 44 | |
| 3 | Luang Prabang | 39 | |
| 4 | Phongsali | 32 | |
| 5 | Muang Phon-Hong | 29 | |
| 6 | Muang Khamkeut | 28 | |
| 7 | Champasak | 22 | |
| 8 | Muang Xay | 22 | |
| 9 | Sainyabuli | 22 | |
| 10 | Muang Phin | 15 |
2025 Laos most polluted city
| Vientiane, Vientiane | 79 |
Live cleanest city ranking
Real-time Laos cleanest city ranking
| # | Cities | AQI⁺ US | |
|---|---|---|---|
| 1 | Muang Phonsavan | 9 | |
| 2 | Pakse | 9 | |
| 3 | Salavan | 14 | |
| 4 | Thakhek | 14 | |
| 5 | Muang Phin | 15 | |
| 6 | Champasak | 22 | |
| 7 | Muang Xay | 22 | |
| 8 | Sainyabuli | 22 | |
| 9 | Muang Khamkeut | 28 | |
| 10 | Muang Phon-Hong | 29 |
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
