World's most polluted cities (historical data 2017-2021)
Most polluted city ranking based on annual average PM2.5 concentration (μg/m³)
Filter cities by
2021
NEW
World air quality report
Download PDF
2021 Report - English
2021 World air quality report
Download PDF
Meets WHO guideline
Exceeds by 1 to 2 times
Exceeds by 2 to 3 times
Exceeds by 3 to 5 times
Exceeds by 5 to 7 times
Exceeds by 7 to 10 times
Exceeds by over 10 times
Rank  | City | 2021 | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  Krasnoyarsk, Russia | 49.8 | 52.4 | 68.9 | 18.2 | 21.1 | 36.7 | 32.7 | 42.8 | 148.4 | 45.3 | 48.3 | 29.4 | 53.2 | 14.7 | 17.7 | 23.1 | 16.4 |
| 2 | Kamensk-Shakhtinskiy, Russia | 15.8 | 23.8 | 18.6 | 16.6 | 16.4 | 9.2 | 10.5 | 13.3 | 17.9 | 12.3 | 17.4 | 18.9 | 14.6 | 16 | - | - | - |
| 3 | Priargunsk, Russia | 13.5 | 31.5 | 25.2 | 12.5 | 9.8 | 8.9 | 8.1 | 7.5 | 7.3 | 10 | 11.4 | 14.3 | 18.8 | - | - | - | - |
| 4 | Tol'yatti, Russia | 13 | 12.8 | 8 | 8 | 10.5 | 14.4 | 11 | 9.2 | 25 | 30 | 10.4 | 8.5 | 8.6 | 9.5 | 10.4 | - | - |
| 5 | Moscow, Russia | 11.9 | 15.8 | 11.5 | 10.3 | 12.2 | 10.7 | 13 | 12.2 | 14.6 | 8.7 | 13.3 | 9.3 | 10.8 | 10.5 | 10 | 10.1 | 8.4 |
| 6 | Sterlitamak, Russia | 10.5 | - | 10.1 | 10.4 | 8.9 | 13.4 | 12.1 | 9.7 | 13.5 | 6.8 | 12.4 | 7.9 | 10.2 | - | - | - | - |
| 7 | Magnitogorsk, Russia | 10.2 | 20.6 | 13.7 | 10.9 | 8.3 | 9.8 | 8.4 | 8.5 | 14.8 | 5.6 | 7.6 | 5.3 | 8.4 | 13.7 | - | - | - |
| 8 | Gelendzhik, Russia | 8.4 | 7.7 | 6.7 | 7.1 | 9.7 | 6.8 | 7.9 | 10.5 | 13.1 | 5.5 | 8.9 | 13 | 6.5 | 8.1 | 11 | - | - |
| 9 | Saint Petersburg, Russia | 7.6 | 12.8 | 9.1 | 6.4 | 4.7 | 4.9 | 6.3 | 6.2 | 6 | 7.8 | 9.8 | 6.7 | 10.1 | 6.4 | 7.6 | - | - |
| 10 | Vladivostok, Russia | 3.4 | 6.3 | 6 | 3.5 | 4.3 | 1.8 | 1.5 | 1.7 | 2.2 | 1.6 | 2 | 3.9 | 5.2 | 3.6 | 12.6 | 13.5 | 16.2 |
| 11 | Saransk, Russia | 3.1 | 3.5 | 2.3 | 1.5 | 1.6 | 1.5 | 1.8 | 3 | 6.1 | 4 | 5 | 2.5 | 3 | 6.5 | 9.4 | 9.6 | - |
Stay Informed. Download #1 air quality app
Rated 4.8Air pollution forecast, pollution alerts and much more to help you plan your days and keep protected against air pollution
