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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1205 |  Jasper USA | 7.8 | 7.2 | 10.4 | 8.4 | 10.2 | -- | -- | -- | -- |
| 1206 | La Porte USA | 7.8 | 6.9 | 12.5 | 10.9 | 12.2 | -- | -- | -- | -- |
| 1207 | Council Bluffs USA | 7.8 | 7.8 | 13.4 | 9.5 | 13.7 | -- | -- | -- | -- |
| 1208 | Fairfield USA | 7.8 | 7 | 10.5 | 2.5 | 9 | -- | -- | -- | -- |
| 1209 | Catonsville USA | 7.8 | 7.4 | 11.5 | 9.9 | 11.9 | -- | -- | -- | -- |
| 1210 | North Bethesda USA | 7.8 | 5.1 | 9.8 | -- | -- | -- | -- | -- | -- |
| 1211 | Hillman USA | 7.8 | 4.9 | 10.1 | 9 | -- | -- | -- | -- | -- |
| 1212 | Detroit Lakes USA | 7.8 | 6.5 | 9.9 | 5.1 | 11.6 | 5 | 5.3 | 5.7 | 5.7 |
| 1213 | Hinckley USA | 7.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1214 | Southaven USA | 7.8 | 8 | -- | -- | -- | -- | -- | -- | -- |
| 1215 | Waveland USA | 7.8 | 7.8 | 9.3 | 8.3 | 8.8 | 8.2 | 7.5 | 7.4 | -- |
| 1216 | Wayne USA | 7.8 | 10.6 | -- | -- | -- | -- | -- | -- | -- |
| 1217 | Cherry Hill USA | 7.8 | 7.5 | 11.2 | -- | -- | -- | -- | -- | -- |
| 1218 | Hackensack USA | 7.8 | 7.1 | 10.3 | -- | -- | -- | -- | -- | -- |
| 1219 | Marlboro USA | 7.8 | 7.2 | 9.4 | -- | -- | -- | -- | -- | -- |
| 1220 | Chimayo USA | 7.8 | 8.3 | 7.9 | -- | -- | -- | -- | -- | -- |
| 1221 | Clifton Gardens USA | 7.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1222 | Hell's Kitchen USA | 7.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1223 | Moravia USA | 7.8 | 6.7 | -- | -- | -- | -- | -- | -- | -- |
| 1224 | Saratoga Springs USA | 7.8 | 7.9 | -- | -- | -- | -- | -- | -- | -- |
| 1225 | Uniondale USA | 7.8 | 7.2 | 8 | -- | -- | -- | -- | -- | -- |
| 1226 | Charlotte USA | 7.8 | 7.7 | 11.1 | 10.2 | 11.5 | 9.5 | 12.2 | 8.3 | 8.7 |
| 1227 | Garner USA | 7.8 | 7.8 | 10.5 | 9 | 11.9 | 10.8 | -- | -- | -- |
| 1228 | Morrisville USA | 7.8 | 7.9 | 8.7 | 7.1 | 8.2 | 9.2 | 11.9 | 8.1 | 8.9 |
| 1229 | Mayfield USA | 7.8 | 6.7 | 9.7 | 6 | -- | -- | -- | -- | -- |
| 1230 | Rosemount USA | 7.8 | 7.3 | -- | -- | -- | -- | -- | -- | -- |
| 1231 | Warrensville Heights USA | 7.8 | 6.5 | 10.1 | -- | -- | -- | -- | -- | -- |
| 1232 | Glenpool USA | 7.8 | 8.4 | 9.7 | 8.5 | 9.8 | 9 | 8.4 | 10.3 | 10.1 |
| 1233 | Ponca City USA | 7.8 | 8.8 | 9.9 | 8.5 | 11.2 | 9.3 | 8.3 | 8.1 | 8 |
| 1234 | Altamont USA | 7.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1235 | Bulger USA | 7.8 | 7.3 | -- | -- | -- | -- | -- | -- | -- |
| 1236 | Dallas USA | 7.8 | 6.8 | 5.5 | -- | -- | -- | -- | -- | -- |
| 1237 | Edgeworth USA | 7.8 | 6.9 | 8.7 | -- | -- | -- | -- | -- | -- |
| 1238 | Harrisburg USA | 7.8 | 7.9 | 12.7 | 11.3 | 11.9 | 9.3 | 9 | 7.9 | -- |
| 1239 | Lebanon USA | 7.8 | 7.5 | 11.5 | 9.1 | 9.8 | -- | 9.4 | 9.3 | 12.5 |
| 1240 | Linglestown USA | 7.8 | 5.9 | 11.4 | -- | -- | -- | -- | -- | -- |
| 1241 | Newtown Grant USA | 7.8 | 7.5 | 11.3 | -- | -- | -- | -- | -- | -- |
| 1242 | Pittsburgh USA | 7.8 | 7 | 11 | 9.8 | 12.5 | 10.1 | 12.2 | 10.1 | 10 |
| 1243 | Quakertown USA | 7.8 | 7 | 12.1 | 10.1 | 12.6 | -- | -- | -- | -- |
| 1244 | Spring House USA | 7.8 | 7.2 | 8.8 | -- | -- | -- | -- | -- | -- |
| 1245 | Throop USA | 7.8 | 7.3 | 9.2 | -- | -- | -- | -- | -- | -- |
| 1246 | Knoxville USA | 7.8 | 8.1 | 10.7 | 9.4 | 12.2 | 9.5 | 10.2 | 8.8 | 9.9 |
| 1247 | Nashville USA | 7.8 | 7.6 | 12.3 | 11.9 | 14.3 | -- | 9.6 | 9.5 | 9.6 |
| 1248 | New Market USA | 7.8 | 8.2 | 9.7 | -- | -- | -- | -- | -- | -- |
| 1249 | Alvord USA | 7.8 | 6.9 | -- | -- | -- | -- | -- | -- | -- |
| 1250 | Blue Ridge USA | 7.8 | 8.7 | 10.3 | 9.6 | -- | -- | -- | -- | -- |
| 1251 | Colmesneil USA | 7.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 1252 | Dallas USA | 7.8 | 7.7 | 10.1 | 10.9 | 11.8 | 9.6 | 12.3 | -- | -- |
| 1253 | New Braunfels USA | 7.8 | 7.8 | 8.5 | 8.1 | 9.6 | 8.9 | 9.9 | -- | -- |
| 1254 | Pflugerville USA | 7.8 | 8.5 | 10.6 | 10.3 | 11.3 | -- | -- | -- | -- |
