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
PM2.5 legend
0-5Meets WHO guideline
5.1-10Exceeds by 1 to 2 times
10.1-15Exceeds by 2 to 3 times
15.1-25Exceeds by 3 to 5 times
25.1-35Exceeds by 5 to 7 times
35.1-50Exceeds by 7 to 10 times
>50.1Exceeds by over 10 times
| Rank | City | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4119 |  Radlett United Kingdom | 8.8 | 8.1 | 16.9 | -- | -- | -- | -- | -- | -- |
| 4120 | Wakefield United Kingdom | 8.8 | 7.2 | 8.2 | 8.5 | 8.7 | -- | -- | -- | -- |
| 4121 |  Uniontown USA | 8.8 | 8.6 | 12.9 | 12.1 | 13.1 | -- | -- | -- | -- |
| 4122 | Fullerton USA | 8.8 | 8.8 | 10.2 | 10.5 | 14.3 | 16.1 | 13 | -- | -- |
| 4123 | Ladera Ranch USA | 8.8 | 8.5 | 8.1 | -- | -- | -- | -- | -- | -- |
| 4124 | Taft Heights USA | 8.8 | 8.1 | -- | -- | -- | -- | -- | -- | -- |
| 4125 | Brookside USA | 8.8 | 8.2 | 11.8 | -- | -- | -- | -- | -- | -- |
| 4126 | Panama City USA | 8.8 | 9.8 | 9.6 | 8.9 | 8.7 | 10 | 8.8 | 8.6 | 9 |
| 4127 | Cumming USA | 8.8 | 8.5 | 11.8 | 10.7 | 13.8 | -- | -- | -- | -- |
| 4128 | East Point USA | 8.8 | 8.6 | 13.2 | 11.8 | -- | -- | -- | -- | -- |
| 4129 | Gainesville USA | 8.8 | 10.3 | 11.5 | 10.1 | 9.1 | 8.8 | 9.7 | -- | -- |
| 4130 | North Druid Hills USA | 8.8 | 7.7 | 12.6 | -- | -- | -- | -- | -- | -- |
| 4131 | Powder Springs USA | 8.8 | 8.8 | 12.3 | -- | -- | -- | -- | -- | -- |
| 4132 | Dalton Gardens USA | 8.8 | 7.5 | 10.6 | 12.8 | 9.6 | -- | -- | -- | -- |
| 4133 | Rock Island Arsenal USA | 8.8 | 6.5 | 11.2 | 8.8 | -- | -- | -- | -- | -- |
| 4134 | Rockford USA | 8.8 | 7.5 | 12.2 | 11 | 9.8 | 9.4 | -- | -- | -- |
| 4135 | Warrenville USA | 8.8 | 7.6 | -- | -- | -- | -- | -- | -- | -- |
| 4136 | Willowbrook USA | 8.8 | 7.9 | 14.7 | 12.7 | 13.5 | -- | -- | -- | -- |
| 4137 | Des Moines USA | 8.8 | 5.6 | 9.7 | 5.9 | 10.4 | 7.2 | 7.3 | 7.4 | 8.4 |
| 4138 | Hiawatha USA | 8.8 | 7.7 | 12.2 | -- | -- | -- | -- | -- | -- |
| 4139 | Bel Aire USA | 8.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4140 | Fairway USA | 8.8 | 8.3 | 11.5 | -- | -- | -- | -- | -- | -- |
| 4141 | Ludlow USA | 8.8 | 7.9 | 10.9 | -- | -- | -- | -- | -- | -- |
| 4142 | Owensboro USA | 8.8 | 7.6 | 9.7 | 8.6 | 10.3 | 8 | 8.7 | 9 | 10.7 |
| 4143 | Ann Arbor USA | 8.8 | 7.8 | 11.5 | 8.4 | 11.5 | 10.4 | 11.9 | -- | -- |
| 4144 | Brighton USA | 8.8 | 11.4 | -- | -- | -- | -- | -- | -- | -- |
| 4145 | Dearborn USA | 8.8 | 8.8 | 13.6 | 10.9 | 10 | 9.1 | 9.5 | 9.9 | 10 |
| 4146 | Novi USA | 8.8 | 7.3 | -- | -- | -- | -- | -- | -- | -- |
| 4147 | Oakland USA | 8.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4148 | International Falls USA | 8.8 | 6.5 | 9.4 | 3.9 | 5.2 | -- | -- | -- | -- |
| 4149 | Rochester USA | 8.8 | 7.6 | 12.7 | 8.8 | 11.9 | 8.8 | 8.7 | 8.6 | 7.7 |
| 4150 | Norfolk USA | 8.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4151 | Newark USA | 8.8 | 7.8 | 12.8 | 8.9 | 12.3 | 10.6 | 11.2 | 8.9 | 8.7 |
| 4152 | Fairport USA | 8.8 | 6.9 | 10.1 | -- | -- | -- | -- | -- | -- |
| 4153 | Harrisburg USA | 8.8 | 8.8 | 11.3 | 12.2 | 14.1 | -- | -- | -- | -- |
| 4154 | Grand Forks USA | 8.8 | 7.6 | 10.5 | 6 | 14.4 | -- | -- | -- | -- |
| 4155 | Cincinnati USA | 8.8 | 7.7 | 11.1 | 9.9 | 11.7 | 10.1 | 11.2 | 10.4 | 9.7 |
| 4156 | East Cleveland USA | 8.8 | 8.2 | 10.9 | -- | -- | -- | -- | -- | -- |
| 4157 | Holland USA | 8.8 | 8.3 | 11.3 | -- | -- | -- | -- | -- | -- |
| 4158 | Warren USA | 8.8 | 7.8 | 10.6 | 5 | 8.6 | 6.1 | -- | -- | -- |
| 4159 | Wooster USA | 8.8 | 9 | 11.3 | -- | -- | -- | -- | -- | -- |
| 4160 | Hugo USA | 8.8 | 9.4 | -- | -- | -- | -- | -- | -- | -- |
| 4161 | Baden USA | 8.8 | 7 | 11.9 | 12 | 12.9 | -- | -- | -- | -- |
| 4162 | Chester USA | 8.8 | 7.2 | 12.2 | 11.3 | 12.4 | 10.1 | 10.6 | 11.7 | 9.5 |
| 4163 | Easton USA | 8.8 | 7.2 | -- | -- | -- | -- | -- | -- | -- |
| 4164 | New Freeport USA | 8.8 | 8.1 | -- | -- | -- | -- | -- | -- | -- |
| 4165 | St. Clair USA | 8.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 4166 | Marble Falls USA | 8.8 | 9.8 | -- | -- | -- | -- | -- | -- | -- |
| 4167 | Poteet USA | 8.8 | 11.1 | 8.8 | 9.5 | -- | -- | -- | -- | -- |
| 4168 | Eau Claire USA | 8.8 | 6 | 10.4 | 7.2 | 8.9 | 7.7 | 8.1 | 7.8 | 7 |
