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2017-2023
World's most polluted cities
Most polluted city ranking based on annual average PM2.5 concentration (μg/m³)
2023
World Air Quality Report
PM2.5 legend
0-5
Meets WHO guideline
5.1-10
Exceeds by 1 to 2 times
10.1-15
Exceeds by 2 to 3 times
15.1-25
Exceeds by 3 to 5 times
25.1-35
Exceeds by 5 to 7 times
35.1-50
Exceeds by 7 to 10 times
>50.1
Exceeds by over 10 times
Rank | City | 2023 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  Cacak, Serbia | 31.1 | 58 | 55.5 | 33.4 | 22.9 | 16.2 | 14.8 | 13.9 | 14.9 | 13.8 | 18.1 | 36.5 | 77.7 | 35.7 | 41.5 | 30.3 | -- | -- | -- |
| 2 | Vranje, Serbia | 30.8 | 50 | 50.2 | 34.7 | 23.6 | 14.2 | 15.4 | 16 | -- | -- | 24.1 | 26.4 | 53.6 | 32.5 | -- | -- | -- | -- | -- |
| 3 | Gornji Milanovac, Serbia | 28.5 | 57.8 | 59.8 | 32 | 25.3 | 12.8 | 10.9 | 10.9 | 11.3 | 11.7 | 16.1 | 22.8 | 60.9 | 39.5 | 32.5 | -- | -- | -- | -- |
| 4 | Uzice, Serbia | 28.1 | 64.1 | 38.5 | 31.6 | 12.4 | 17.9 | 15.9 | 14.3 | 15.1 | 15.9 | 20.9 | 29.6 | 57.5 | 40 | 32.1 | 31.7 | -- | -- | -- |
| 5 | Valjevo, Serbia | 28 | 52 | 50.6 | 35.8 | 30.3 | 17.8 | 15.9 | 14.4 | 15.3 | 14.6 | 16.9 | 29.6 | 52.3 | 31.8 | 34.7 | 41.5 | 37.9 | -- | -- |
| 6 | Nis, Serbia | 26.7 | 46.7 | 56.7 | 29.8 | 22.7 | 13.5 | 12.8 | 12.6 | 12.8 | 12.8 | 14.6 | 27.4 | 59.4 | 31.9 | 29 | 32 | 32.4 | -- | -- |
| 7 | Kosjeric, Serbia | 26.4 | 44.6 | 44.4 | 32 | 22.9 | 14.6 | 12.6 | 11.9 | 12.2 | 12.8 | 17.7 | 31.8 | 61.3 | 28.6 | 35.5 | 36.7 | 28.8 | -- | -- |
| 8 | Veliki Crljeni, Serbia | 25.1 | 40.8 | 46.1 | 28.4 | 24.9 | 16.2 | 16.5 | 17.3 | 16.4 | 15.7 | 16.8 | 21.1 | 44.8 | -- | -- | -- | -- | -- | -- |
| 9 | Lazarevac, Serbia | 24.4 | 50.2 | 53.4 | 29.5 | 29.7 | 13.1 | 9.6 | 8.4 | 9.6 | 8.5 | 12.4 | 24.7 | 48 | 32.2 | 24.6 | -- | -- | -- | -- |
| 10 | Pirot, Serbia | 23.5 | 33.3 | 48.2 | 30.4 | 24.5 | 15.6 | 16.3 | 12.1 | 10.9 | 12.3 | 15.7 | 24.5 | 52.3 | 51.7 | -- | -- | -- | -- | -- |
| 11 | Zemun, Serbia | 23.1 | 34.4 | 53.9 | 27.5 | 20.3 | 14.1 | 14 | 13.6 | 14.9 | 15.2 | 18.1 | 21.4 | 49.5 | 27.7 | 26.4 | -- | -- | -- | -- |
| 12 | Novi Beograd, Serbia | 22.2 | 35.8 | 37.9 | 21.9 | 19.7 | 15.2 | 14.6 | 14.1 | 15.4 | 15.3 | 17.3 | 18.7 | 41.3 | 22.4 | 19 | -- | -- | -- | -- |
| 13 | Vozdovac, Serbia | 22 | 28.1 | 42.2 | 27.1 | 17.9 | 13.8 | 15.6 | 15.2 | 16.5 | 17.9 | 17.3 | 17.3 | 36.6 | 46.1 | -- | -- | -- | -- | -- |
| 14 | Mladenovac, Serbia | 21.9 | -- | -- | 21.2 | 23.4 | 17.7 | 17.7 | 17.3 | 17.4 | 17.2 | 19.9 | 23.5 | 45.7 | -- | -- | -- | -- | -- | -- |
| 15 | Kragujevac, Serbia | 21.9 | 40.4 | 40.5 | 25.4 | 21.6 | 13.7 | 11.6 | 10.9 | 11.3 | 11.3 | 12.3 | 22.4 | 41.9 | 25.2 | 25 | 29.8 | 24.7 | -- | -- |
| 16 | Ovca, Serbia | 21.6 | 33 | 38.8 | 21.8 | 21.3 | 12.3 | 12.1 | 11.4 | 13.2 | 14 | 15.3 | 20 | 48.4 | 28.8 | 18.8 | -- | -- | -- | -- |
| 17 | Lipe, Serbia | 21.6 | 63.9 | -- | 24.5 | 23.8 | 16.1 | 15 | 15.2 | 16.5 | 16.3 | 20.8 | 23.6 | 44.7 | 42.1 | 30.7 | 26.4 | -- | -- | -- |
| 18 | Omoljica, Serbia | 21.3 | 28.6 | 36.8 | 24.2 | 20.1 | 14.3 | 11 | 12 | 15.2 | 15.7 | 17.8 | 20.6 | 43.1 | -- | -- | -- | -- | -- | -- |
| 19 | Usce, Serbia | 20.8 | 31.7 | 18.6 | 21.9 | 20.9 | 15.8 | 15.9 | 17.3 | 18.3 | 15.6 | 17.5 | 19.6 | 35.5 | -- | -- | -- | -- | -- | -- |
| 20 | Paracin, Serbia | 19.3 | 24.7 | 30.9 | 20.1 | 15.7 | 17 | 13.8 | 12.8 | 15.3 | 13.4 | 13.5 | 16.6 | 34.3 | 21.8 | -- | -- | -- | -- | -- |
| 21 | Obrenovac, Serbia | 19.1 | 26.4 | 37.6 | 21.3 | 17.3 | 13 | 12.4 | 13 | 13 | 12.8 | 13.2 | 14.4 | 37.7 | 22.5 | 22.3 | 8.4 | 9.7 | -- | -- |
| 22 | Belgrade, Serbia | 18.8 | 31.3 | 32.5 | 19.4 | 16.9 | 12.5 | 12.5 | 12.4 | 14 | 13.3 | 13.9 | 14.5 | 33.2 | 22.1 | 23.4 | 24.3 | 23.3 | 23.9 | 24.5 |
| 23 | Zvezdara, Serbia | 18.6 | -- | -- | 20.7 | 21.9 | 14.9 | 14.6 | 13.9 | 14.3 | 14.5 | 16.2 | 21.1 | 35.2 | 23.5 | 22.2 | -- | -- | -- | -- |
| 24 | Prokuplje, Serbia | 18.6 | 25.3 | 32.3 | 23.1 | 15.3 | 12.8 | 14.7 | 14.8 | 14.8 | 13.1 | -- | -- | -- | 26.7 | -- | -- | -- | -- | -- |
| 25 | Prokuplje, Serbia | 18.3 | 21.9 | 29.7 | 19.8 | 14.1 | 13 | 16.1 | 16.3 | 16.6 | 16.7 | 14.2 | 15 | 26.6 | 44.6 | -- | -- | -- | -- | -- |
| 26 | Sopot, Serbia | 17.7 | -- | -- | 18.7 | 20.9 | 13.6 | 12.8 | 12.5 | 13.3 | 13.3 | 15.9 | 20.5 | 38.2 | -- | -- | -- | -- | -- | -- |
| 27 | Surcin, Serbia | 17.7 | -- | -- | 20.3 | 21.4 | 14.3 | 13.5 | 13.5 | 14.5 | 14 | 14.4 | 16.1 | 38.8 | -- | -- | -- | -- | -- | -- |
| 28 | Vracar, Serbia | 17.6 | -- | -- | 16.7 | 19 | 14 | 13.6 | 13 | 14 | 14.5 | 16 | 17.5 | 37.6 | -- | -- | -- | -- | -- | -- |
| 29 | Novi Sad, Serbia | 17.5 | 28.4 | 32.1 | 18.5 | 16.8 | 12 | 11.3 | 10.5 | 11.8 | 11.5 | 12.5 | 13.4 | 31.4 | 22.4 | 24 | 22.2 | 26.9 | -- | -- |
| 30 | Cukarica, Serbia | 16 | -- | -- | 16.1 | 19 | 12.5 | 12.8 | 12.3 | 13.2 | 12.5 | 13.5 | 15.8 | 30.5 | -- | -- | -- | -- | -- | -- |
| 31 | Savski Venac, Serbia | 15.2 | -- | -- | 14.1 | 16.4 | 12.3 | 12.8 | 11.9 | 13.7 | 13.3 | 14 | 13.6 | 28.8 | 20 | 18.8 | -- | -- | -- | -- |
| 32 | Sremski Karlovci, Serbia | 14.9 | 21.2 | 29.7 | 17.3 | 15.3 | 11.5 | 10.8 | 10.3 | 12.2 | 11.2 | 12 | 11.8 | 18.3 | -- | -- | -- | -- | -- | -- |
| 33 | Zrenjanin, Serbia | 14.8 | 22.1 | 29.1 | 16.8 | 11 | 8.8 | 8.7 | 9.3 | 8.9 | 10.3 | 14.7 | 13.1 | 24.9 | 32.5 | -- | -- | -- | -- | -- |
| 34 | Vozdovac, Serbia | 14.6 | -- | -- | 12.2 | 14.7 | 11.2 | 13.6 | 12.3 | 14.1 | 13 | 12.9 | 12.7 | 26.6 | -- | -- | -- | -- | -- | -- |
| 35 | Barajevo, Serbia | 14.3 | -- | -- | 11.6 | 16.8 | 12.4 | 12.3 | 12.4 | 14 | 12.8 | 11.5 | 12.6 | 24.6 | -- | -- | -- | -- | -- | -- |
| 36 | Subotica, Serbia | 14 | -- | -- | 21.3 | 14.8 | 10.7 | 11.7 | 9.9 | 11.7 | 12 | 15.1 | 14.1 | 23.3 | -- | -- | -- | -- | -- | -- |
| 37 | Bor, Serbia | 12.4 | 14.1 | 16.8 | 13.9 | 12.8 | 11.8 | 11.1 | 10.2 | 11.8 | 11.1 | 10.1 | 10.4 | 15.4 | 12.5 | 14.6 | 16.1 | 18.1 | -- | -- |
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