2017-2025
World's most polluted cities
The most polluted cities according to data aggregated from over 80,000 data points.
2025
World Air Quality Report
2025
World Air Quality Report
| Rank | City | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1206 |  Pakkret Thailand | 18 | 18.7 | 28.4 | 17.6 | -- | -- | -- | -- | -- |
| 1207 | Rua Yai Thailand | 18 | 22.2 | 24.3 | 18.8 | -- | -- | -- | -- | -- |
| 1208 |  Korfez Turkey | 18 | 20.3 | 18.6 | 16.1 | -- | -- | -- | -- | -- |
| 1209 |  Havířov Czech Republic | 17.9 | 16.8 | 15.9 | 18.3 | 19.6 | 18 | 20.3 | 28.8 | 26.7 |
| 1210 |  Tel Aviv-Yafo Israel | 17.9 | 19.5 | 19 | 19.5 | 20.7 | 17.2 | 21.8 | 19.5 | 18.3 |
| 1211 |  Ulaanbaatar Mongolia | 17.9 | 25.7 | 22.5 | 30.6 | 33.8 | 46.6 | 62 | 58.5 | 66.5 |
| 1212 |  Chiajna Romania | 17.9 | 14.4 | 16.2 | 28.1 | -- | -- | -- | -- | -- |
| 1213 |  Seoul South Korea | 17.9 | 17.5 | 19.7 | 18.3 | 19.7 | 20.9 | 24.8 | 23.3 | 25.2 |
| 1214 | Mueang Nonthaburi Thailand | 17.9 | 19.4 | 22.2 | -- | -- | -- | -- | -- | -- |
| 1215 | Erzincan Turkey | 17.9 | 21.1 | 24.5 | 25.9 | 31 | 26.7 | -- | -- | -- |
| 1216 | Istanbul Turkey | 17.9 | 15.3 | 18.7 | 17.9 | 17.6 | 16.7 | 19.9 | 21.7 | -- |
| 1217 |  Tam Ky Vietnam | 17.9 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1218 | Cat Tien Vietnam | 17.9 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1219 |  Curanilahue Chile | 17.8 | 17.4 | 15.2 | 15.3 | 16.1 | 15.4 | 21.6 | -- | -- |
| 1220 | Laja Chile | 17.8 | 15.8 | 18 | 17.4 | -- | -- | -- | -- | -- |
| 1221 |  Waqqas Jordan | 17.8 | 17.5 | -- | -- | -- | -- | -- | -- | -- |
| 1222 | Paju South Korea | 17.8 | 18 | 18.3 | 19.7 | 22.1 | -- | 27.9 | 25.1 | 29 |
| 1223 | Mae Rim Thailand | 17.8 | 25.2 | 36.9 | -- | -- | -- | -- | -- | -- |
| 1224 | Kamphaeng Phet Thailand | 17.8 | 20.1 | 28.4 | 19.6 | 22 | 31.7 | 23.6 | -- | -- |
| 1225 | Kanchanaburi Thailand | 17.8 | 17.9 | 20.5 | -- | -- | -- | -- | -- | -- |
| 1226 | Sikhio Thailand | 17.8 | 12.7 | -- | -- | -- | -- | -- | -- | -- |
| 1227 | Nikhom Phattana Thailand | 17.8 | 17.1 | -- | -- | -- | -- | -- | -- | -- |
| 1228 | Trat Thailand | 17.8 | 21.3 | 15.6 | 10.8 | 11.4 | -- | -- | -- | -- |
| 1229 |  Putian China | 17.7 | 18.5 | 19.4 | 17.8 | 20.4 | 20.7 | 23.9 | 25.6 | 26.2 |
| 1230 | Chuxiong China | 17.7 | 19.2 | 20.2 | 18.3 | 20.8 | 17.8 | 20.9 | 24.3 | 22.5 |
| 1231 |  Vittuone Italy | 17.7 | 18.5 | 17 | -- | -- | -- | -- | -- | -- |
| 1232 | Feltre Italy | 17.7 | 15.3 | -- | -- | -- | -- | -- | -- | -- |
| 1233 |  Mixquiahuala de Juarez Mexico | 17.7 | 16.5 | -- | -- | -- | -- | -- | -- | -- |
| 1234 | Jeungpyeong South Korea | 17.7 | 14.5 | 13.4 | 26.5 | 20.4 | -- | 33.9 | -- | -- |
| 1235 | Gwangju South Korea | 17.7 | 17.5 | 20.1 | 20 | 19.8 | -- | 28.7 | 27.8 | 29.6 |
| 1236 | Gwangmyeong South Korea | 17.7 | 18.1 | 20.5 | 20.2 | 21.3 | -- | 26.9 | 25.2 | 27.1 |
| 1237 | Pocheon South Korea | 17.7 | 16.7 | 19.7 | 18.2 | 18.8 | -- | 24.9 | 23.6 | 26.8 |
| 1238 | Puan South Korea | 17.7 | 14.3 | 16.1 | 22.1 | 19.2 | -- | -- | -- | -- |
| 1239 | Burdur Turkey | 17.7 | 16.5 | 18.7 | 22.8 | 22.2 | 25.4 | 24.8 | -- | -- |
| 1240 | Ardesen Turkey | 17.7 | 13.4 | 7.4 | 16.1 | 16 | 20 | 14.9 | -- | -- |
| 1241 | Montorio Italy | 17.6 | 15.3 | -- | -- | -- | -- | -- | -- | -- |
| 1242 |  Cainta Philippines | 17.6 | 25.7 | -- | -- | -- | -- | -- | -- | -- |
| 1243 |  Goczalkowice Zdroj Poland | 17.6 | 17.6 | 15.1 | 22.2 | 31.9 | 31.6 | 29.6 | -- | -- |
| 1244 | Geumsan South Korea | 17.6 | 15.5 | 19.5 | 17.7 | 18.5 | 21.1 | 24.5 | -- | -- |
| 1245 | Cheorwon South Korea | 17.6 | 15.8 | 16.8 | -- | -- | -- | -- | -- | -- |
| 1246 | Buan South Korea | 17.6 | 16.2 | 15.6 | -- | -- | -- | -- | -- | -- |
| 1247 |  Colombo Sri Lanka | 17.6 | 16.9 | 18.3 | 20.9 | 17.6 | 22.4 | 25.2 | 32 | -- |
| 1248 | Bangkok Thailand | 17.6 | 18.9 | 21.7 | 18 | 20 | 20.6 | 22.8 | 25.2 | 27.6 |
| 1249 | Nakhon Ratchasima Thailand | 17.6 | 21.5 | 22.7 | 13.9 | 20.3 | 21.6 | 42.2 | 37.6 | -- |
| 1250 |  Douala Cameroon | 17.5 | 23.5 | 24 | 40.3 | -- | -- | -- | -- | -- |
| 1251 |  Thessaloniki Greece | 17.5 | 14.1 | 18.5 | 19.7 | 20.8 | 20.9 | 23.3 | -- | -- |
| 1252 | Tur'an Israel | 17.5 | 17 | 17.9 | -- | -- | -- | -- | -- | -- |
| 1253 | Calasiao Philippines | 17.5 | 19.3 | -- | -- | -- | -- | -- | -- | -- |
| 1254 | Suceava Romania | 17.5 | 19.3 | 18.1 | -- | -- | -- | -- | -- | -- |
| 1255 |  Zanzibar Tanzania | 17.5 | 18.4 | 21.5 | -- | -- | -- | -- | -- | -- |
