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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 |  Igdir, Turkey | 47.2 | 177.2 | 43.3 | 37.6 | 15.9 | 14.2 | 13 | 12 | 19.7 | 17.8 | 29.1 | 68.1 | 113.6 | 53 | 66.2 | -- | -- | -- | -- |
| 2 | Osmaniye, Turkey | 38.5 | 88.9 | 68.7 | 30.5 | 16.1 | 17.6 | 20.5 | 19.1 | 25.7 | 25.4 | 23.6 | 33.8 | 95.3 | 21.5 | 26.3 | -- | -- | -- | -- |
| 3 | Hendek, Turkey | 37.3 | 51.3 | 41.4 | 30.1 | 26 | 35.7 | 36.8 | 34.6 | 40.1 | 35.9 | 41.8 | 29.7 | 43.8 | 34.4 | -- | -- | -- | -- | -- |
| 4 | Gaziantep, Turkey | 35 | 85.4 | 53.4 | 30.5 | 19.2 | 17.2 | 16.4 | 14.6 | 18.7 | 21.7 | 26.2 | 48.4 | 82 | 40.2 | 27.3 | -- | -- | -- | -- |
| 5 | Niluefer, Turkey | 33.7 | 42.6 | 41.4 | 35.5 | 29.7 | 34.6 | 32.6 | 32 | 33.9 | 29.3 | 22.8 | 0 | -- | -- | -- | -- | -- | -- | -- |
| 6 | Konya, Turkey | 33.2 | 79.2 | 52.4 | 25.8 | 20.4 | 20.1 | 16.8 | 16.9 | 20.4 | 18 | 29.3 | 33.4 | 64.7 | 34.5 | 33.8 | 30.7 | 33.2 | -- | -- |
| 7 | Alasehir, Turkey | 32.9 | 24.9 | 17.9 | 15.7 | 16.2 | 35 | 42.9 | 58.9 | 57.3 | 31 | 28.5 | 48.5 | 26.7 | -- | -- | -- | -- | -- | -- |
| 8 | Duzce, Turkey | 30.1 | 58.8 | 41.8 | 27.1 | 19 | 16.5 | 16.6 | 18.8 | 24 | 16.9 | 27.7 | 31.4 | 63.1 | 36.8 | 44.4 | 33.3 | 46 | -- | -- |
| 9 | Iskenderun, Turkey | 29.9 | 50.1 | 97.7 | 30.8 | 22 | 19.7 | 18.6 | 18.9 | 23.1 | 21.3 | 25.6 | -- | -- | 28.4 | 24.8 | -- | -- | -- | -- |
| 10 | Kahramanmaras, Turkey | 29 | 93.2 | 38.8 | 25.5 | 18 | 15.1 | 19.3 | 16.1 | 26.6 | 25 | 20.7 | 21.8 | 23.9 | 32.8 | 36.4 | -- | -- | -- | -- |
| 11 | Arnavutkoey, Turkey | 28.6 | 21.8 | 21.1 | 34.6 | 14.5 | 12.8 | 9.8 | 11.6 | 12 | 155.4 | -- | -- | -- | 19.3 | 17.4 | -- | -- | -- | -- |
| 12 | Icmeler, Turkey | 28.3 | 25.3 | 16.7 | 17.4 | 18.5 | 17.9 | 18.8 | 82.7 | 31.6 | 19.4 | 21.5 | -- | -- | -- | -- | -- | -- | -- | -- |
| 13 | Kestel, Turkey | 28.1 | 31.2 | 27.7 | 24.3 | 20.8 | 26.2 | 22.6 | 42.1 | 40.8 | 20.3 | 28.5 | 21.3 | 31.2 | 31.2 | 22.9 | 28 | -- | -- | -- |
| 14 | Elbistan, Turkey | 27.8 | 65.6 | 69.5 | 25.4 | 13.5 | 10.6 | 7.1 | 14.7 | 21.2 | 19.9 | 26.1 | 27.8 | 50.2 | 23.6 | 29.3 | -- | -- | -- | -- |
| 15 | UEskuedar, Turkey | 27.3 | 31.6 | 24.5 | 32.3 | 25.9 | 29.1 | 23.7 | 26 | 27.4 | 24.5 | 23.5 | -- | -- | -- | -- | -- | -- | -- | -- |
| 16 | Sehitkamil, Turkey | 26.7 | 44.7 | 27.8 | 24.9 | -- | 17.5 | 15.7 | 14.7 | 19.1 | 21.4 | 28.3 | 33.2 | 42 | 24.4 | 41.5 | -- | -- | -- | -- |
| 17 | Selcuklu, Turkey | 25.9 | 73 | 39.4 | 15.2 | 10.6 | 9 | 14 | 13.9 | 17.1 | 14.7 | 24.8 | 24.2 | 54.1 | 26 | 30 | -- | -- | -- | -- |
| 18 | Amasya, Turkey | 25.4 | 54.6 | 26.7 | 24.1 | 17.2 | 17 | 16.4 | 15.4 | 18.3 | 20 | 26.1 | 27.5 | 45.5 | 25.8 | 28.2 | 31.7 | 35.9 | 34 | -- |
| 19 | Hekimdag, Turkey | 25.4 | 44.6 | 29 | 27.2 | 19.5 | 18.2 | 19.5 | 20.7 | 22.4 | 17.9 | 22.9 | 22.2 | 39.7 | 25 | 26.9 | -- | -- | -- | -- |
| 20 | Kemaliye, Turkey | 25.3 | 48.6 | 32.5 | 24.3 | 15.4 | 21.7 | 24.9 | 23.6 | 25 | 12.8 | 16.6 | 11.4 | 47.6 | -- | -- | -- | -- | -- | -- |
| 21 | Bozuyuk, Turkey | 25 | 34.1 | 26.7 | 22.9 | 22.8 | 23.3 | 18.7 | 18.9 | 21.7 | 24.7 | 25.5 | 26.3 | 34.5 | 19 | -- | -- | -- | -- | -- |
| 22 | Corum, Turkey | 24.6 | 58.4 | 19.8 | 17.2 | 14.4 | 14.6 | 15.5 | 14.4 | 15.9 | 17.2 | 30.8 | 25.2 | 50 | 23.5 | 26.7 | 36 | 23.8 | 24.8 | -- |
| 23 | Erzincan, Turkey | 24.5 | 60.2 | 34.1 | 22.5 | 15.8 | 17.9 | 15.5 | 8.3 | 16.8 | 16 | 20.5 | 26.7 | 39.9 | 25.9 | 31 | 26.7 | -- | -- | -- |
| 24 | Bursa, Turkey | 24.4 | 45.8 | 31.8 | 24.7 | 20.1 | 23.5 | 18.1 | 17.1 | 16.1 | 14.7 | 23.7 | 21.1 | 35.7 | 27.4 | 26 | 25 | 26.3 | 28.4 | -- |
| 25 | Tarsus, Turkey | 24.2 | 43.8 | 37 | 21.4 | 14.8 | 17.9 | 20.2 | 19.3 | 20.5 | 18 | 21.8 | 23.6 | 32.9 | 28.3 | 24.9 | -- | -- | -- | -- |
| 26 | Tokat, Turkey | 23.7 | 56.9 | 26.4 | 18.2 | 15.4 | 14.7 | 13.6 | 14.4 | 17.7 | 14.8 | 20.5 | 25.3 | 44.9 | 20.7 | 21.1 | 23.9 | 27.9 | -- | -- |
| 27 | Buca, Turkey | 23.6 | 52.5 | 23.8 | 19.9 | 14.1 | 18.9 | 17.2 | 17.8 | 23.2 | 25.2 | 19.1 | 19.9 | 23.2 | -- | -- | -- | -- | -- | -- |
| 28 | Sakarya, Turkey | 23.5 | 39.4 | 28 | 23.1 | 23.4 | 20.5 | 16.5 | 15.8 | 17.4 | 16.2 | 25.8 | 23.6 | 32.4 | 20.3 | 22.8 | 24.4 | 23.5 | -- | -- |
| 29 | Bagcilar, Turkey | 23 | 32.5 | 29.8 | 33.4 | 19.3 | 16.1 | 17.1 | 19.2 | 16.2 | 23.7 | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 30 | Mersin, Turkey | 23 | 44.8 | 47.8 | 19.1 | 15.8 | 18.1 | 18.6 | 20.8 | 23.1 | 10.1 | 10.3 | -- | -- | 35.3 | 32.5 | -- | -- | -- | -- |
| 31 | Izmir, Turkey | 22.5 | 41.8 | 19.8 | 13.8 | 11.9 | 16.6 | 17.1 | 23.7 | 29.7 | 16.3 | 23 | 21.9 | 34.1 | 23.5 | 17.4 | -- | -- | -- | -- |
| 32 | Cayirova, Turkey | 22.5 | 26.5 | 22 | 18.9 | 18.3 | 20.2 | 21.1 | 24.1 | 26.9 | 20.9 | 26.3 | 20.3 | 24.1 | 20.2 | -- | -- | -- | -- | -- |
| 33 | Kastamonu, Turkey | 22.4 | 43.1 | 20.1 | 19.1 | 16.7 | 17.1 | 16.5 | 17.9 | 18.7 | 20.4 | 22 | 22.5 | 34 | 26.8 | 23.2 | 22.1 | 30.5 | -- | -- |
| 34 | Aydin, Turkey | 22.2 | 34.9 | 23.1 | 20.6 | 16.5 | 18.7 | 16.3 | 17.7 | 23.4 | 21.3 | 25.3 | 16.8 | 31.4 | 25.6 | 20.3 | -- | -- | -- | -- |
| 35 | Sultangazi, Turkey | 22.2 | 26.1 | 24.5 | 24.9 | 20.6 | 36.1 | 17.6 | 19.4 | 17.4 | 16.1 | 21.5 | 18.2 | 23.7 | 15.9 | -- | -- | -- | -- | -- |
| 36 | Seyhan, Turkey | 21.9 | 36.3 | 20.5 | 14.5 | 14.2 | 17.8 | 18 | 18.2 | 22.2 | 22.6 | 18.3 | 24.1 | 45.3 | 16.6 | 21.8 | -- | -- | -- | -- |
| 37 | Trabzon, Turkey | 21.8 | 35.9 | 22.7 | 24.4 | 21.1 | 23 | 24.1 | 19.5 | 19.3 | 14.6 | 18.4 | 13.1 | 19.3 | 20.8 | 24.1 | 23.7 | 22.3 | -- | -- |
| 38 | Kapakli, Turkey | 21.7 | 24 | 25.8 | 26.7 | 24.7 | 16.6 | 11.5 | 15.6 | 13.7 | 14.8 | 23 | 29.3 | 34.8 | 17.8 | -- | -- | -- | -- | -- |
| 39 | Antalya, Turkey | 21.4 | 28.2 | 22.1 | 22.4 | 17.3 | 18.4 | 22 | 16.9 | 27.8 | 20.1 | 23 | 18.7 | 20.1 | 18.1 | 19.8 | 18.4 | -- | -- | -- |
| 40 | Yalova, Turkey | 21.1 | 36.1 | 23 | 22.9 | 20.5 | 21.4 | 18.1 | 17.6 | 17 | 16.2 | 21.1 | 17.1 | 22.6 | 19 | 15.4 | 14.1 | 17.8 | -- | -- |
| 41 | Izmit, Turkey | 20.9 | 27.6 | 24.5 | 16.5 | 22.5 | 21.1 | 18.2 | 14 | 13.5 | 10.3 | 28 | 23.8 | 32.2 | 19.4 | -- | -- | -- | -- | -- |
| 42 | Adana, Turkey | 20.4 | 29.1 | 21.1 | 16.1 | 12.4 | 19.1 | 20 | 18.8 | 21.3 | 16.2 | 21.5 | 23 | 26 | 15.9 | 14.5 | -- | -- | -- | -- |
| 43 | Karsiyaka, Turkey | 20.3 | 31.5 | 18.4 | 14.8 | 20 | 19.7 | 22 | 24 | 18.1 | 18.8 | 19.7 | -- | -- | -- | -- | -- | -- | -- | -- |
| 44 | Denizli, Turkey | 20.1 | 35.8 | 24.6 | 17.5 | 13.4 | 17.6 | 16.9 | 13.7 | 21.3 | 33.7 | 33.4 | -- | -- | 35.8 | 33.2 | -- | -- | -- | -- |
| 45 | Yakapinar, Turkey | 19.8 | 35.4 | 25.2 | 20 | 14.6 | 16.3 | 14.7 | 14.5 | 18.5 | 18.6 | 16.5 | 17.1 | 26.9 | -- | -- | -- | -- | -- | -- |
| 46 | Cankaya, Turkey | 19.8 | 36.6 | 20.1 | 16.4 | 12.2 | 15.1 | 15.5 | 14.8 | 19.2 | 15.1 | 19.7 | 21.2 | 31.4 | 20.7 | 10.4 | -- | -- | -- | -- |
| 47 | Tekirdag, Turkey | 19.8 | 18.5 | 22 | 20.8 | 17.3 | 18.2 | 13.8 | 16.1 | 17.3 | 19.3 | 25.3 | 20 | 29.1 | 13.4 | 16 | 16.6 | 18.5 | -- | -- |
| 48 | Bartin, Turkey | 19.4 | 33.8 | 19.8 | 20 | 17.4 | 17.3 | 16.4 | 16.2 | 18.9 | 14.9 | 15.8 | 16.7 | 25.7 | 23 | -- | -- | -- | -- | -- |
| 49 | Kilimli, Turkey | 19.2 | 37.4 | 26.8 | 28.4 | 20 | 16.4 | 5 | 7.4 | 6.5 | 13.1 | 22.4 | 16.5 | 31.1 | 30.2 | -- | -- | -- | -- | -- |
| 50 | Aksaray, Turkey | 18.8 | 40.9 | 28.9 | 15.6 | 13.1 | 12.4 | 9.7 | 11.1 | 14.7 | 12.2 | 14.4 | 17.3 | 39.1 | 21.5 | 19.5 | 21.5 | 22.6 | -- | -- |
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