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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5274 |  Cherry Hill USA | 7.8 | 7.5 | 11.2 | -- | -- | -- | -- | -- | -- |
| 5275 | Hackensack USA | 7.8 | 7.1 | 10.3 | -- | -- | -- | -- | -- | -- |
| 5276 | Marlboro USA | 7.8 | 7.2 | 9.4 | -- | -- | -- | -- | -- | -- |
| 5277 | Chimayo USA | 7.8 | 8.3 | 7.9 | -- | -- | -- | -- | -- | -- |
| 5278 | Clifton Gardens USA | 7.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 5279 | Hell's Kitchen USA | 7.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 5280 | Moravia USA | 7.8 | 6.7 | -- | -- | -- | -- | -- | -- | -- |
| 5281 | Saratoga Springs USA | 7.8 | 7.9 | -- | -- | -- | -- | -- | -- | -- |
| 5282 | Uniondale USA | 7.8 | 7.2 | 8 | -- | -- | -- | -- | -- | -- |
| 5283 | Charlotte USA | 7.8 | 7.7 | 11.1 | 10.2 | 11.5 | 9.5 | 12.2 | 8.3 | 8.7 |
| 5284 | Garner USA | 7.8 | 7.8 | 10.5 | 9 | 11.9 | 10.8 | -- | -- | -- |
| 5285 | Morrisville USA | 7.8 | 7.9 | 8.7 | 7.1 | 8.2 | 9.2 | 11.9 | 8.1 | 8.9 |
| 5286 | Mayfield USA | 7.8 | 6.7 | 9.7 | 6 | -- | -- | -- | -- | -- |
| 5287 | Rosemount USA | 7.8 | 7.3 | -- | -- | -- | -- | -- | -- | -- |
| 5288 | Warrensville Heights USA | 7.8 | 6.5 | 10.1 | -- | -- | -- | -- | -- | -- |
| 5289 | Glenpool USA | 7.8 | 8.4 | 9.7 | 8.5 | 9.8 | 9 | 8.4 | 10.3 | 10.1 |
| 5290 | Ponca City USA | 7.8 | 8.8 | 9.9 | 8.5 | 11.2 | 9.3 | 8.3 | 8.1 | 8 |
| 5291 | Altamont USA | 7.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 5292 | Bulger USA | 7.8 | 7.3 | -- | -- | -- | -- | -- | -- | -- |
| 5293 | Dallas USA | 7.8 | 6.8 | 5.5 | -- | -- | -- | -- | -- | -- |
| 5294 | Edgeworth USA | 7.8 | 6.9 | 8.7 | -- | -- | -- | -- | -- | -- |
| 5295 | Harrisburg USA | 7.8 | 7.9 | 12.7 | 11.3 | 11.9 | 9.3 | 9 | 7.9 | -- |
| 5296 | Lebanon USA | 7.8 | 7.5 | 11.5 | 9.1 | 9.8 | -- | 9.4 | 9.3 | 12.5 |
| 5297 | Linglestown USA | 7.8 | 5.9 | 11.4 | -- | -- | -- | -- | -- | -- |
| 5298 | Newtown Grant USA | 7.8 | 7.5 | 11.3 | -- | -- | -- | -- | -- | -- |
| 5299 | Pittsburgh USA | 7.8 | 7 | 11 | 9.8 | 12.5 | 10.1 | 12.2 | 10.1 | 10 |
| 5300 | Quakertown USA | 7.8 | 7 | 12.1 | 10.1 | 12.6 | -- | -- | -- | -- |
| 5301 | Spring House USA | 7.8 | 7.2 | 8.8 | -- | -- | -- | -- | -- | -- |
| 5302 | Throop USA | 7.8 | 7.3 | 9.2 | -- | -- | -- | -- | -- | -- |
| 5303 | Knoxville USA | 7.8 | 8.1 | 10.7 | 9.4 | 12.2 | 9.5 | 10.2 | 8.8 | 9.9 |
| 5304 | Nashville USA | 7.8 | 7.6 | 12.3 | 11.9 | 14.3 | -- | 9.6 | 9.5 | 9.6 |
| 5305 | New Market USA | 7.8 | 8.2 | 9.7 | -- | -- | -- | -- | -- | -- |
| 5306 | Alvord USA | 7.8 | 6.9 | -- | -- | -- | -- | -- | -- | -- |
| 5307 | Blue Ridge USA | 7.8 | 8.7 | 10.3 | 9.6 | -- | -- | -- | -- | -- |
| 5308 | Colmesneil USA | 7.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 5309 | Dallas USA | 7.8 | 7.7 | 10.1 | 10.9 | 11.8 | 9.6 | 12.3 | -- | -- |
| 5310 | New Braunfels USA | 7.8 | 7.8 | 8.5 | 8.1 | 9.6 | 8.9 | 9.9 | -- | -- |
| 5311 | Pflugerville USA | 7.8 | 8.5 | 10.6 | 10.3 | 11.3 | -- | -- | -- | -- |
| 5312 | Herndon USA | 7.8 | 7.4 | 9.1 | -- | -- | -- | -- | -- | -- |
| 5313 | McLean USA | 7.8 | 7.4 | 12.3 | 12.1 | 13 | -- | -- | -- | -- |
| 5314 | Reston USA | 7.8 | 7.8 | 10.4 | 8.7 | 12.5 | -- | -- | -- | -- |
| 5315 | Veradale USA | 7.8 | 7.2 | 11.4 | 12.2 | -- | -- | -- | -- | -- |
| 5316 | Charles Town USA | 7.8 | 7.5 | 10.1 | -- | -- | -- | -- | -- | -- |
| 5317 | Charleston USA | 7.8 | 7.6 | 9.1 | 7.6 | 9.6 | 7.3 | -- | -- | -- |
| 5318 | Mannington USA | 7.8 | 4.2 | 6.2 | -- | -- | -- | -- | -- | -- |
| 5319 | Pleasant Prairie USA | 7.8 | 6 | 9.4 | 7.6 | 8.4 | 6.7 | 7.6 | 7.4 | 6.8 |
| 5320 |  Branxton Australia | 7.7 | 9.7 | 6.4 | -- | -- | -- | -- | -- | -- |
| 5321 | Singleton Australia | 7.7 | 9 | 7.9 | 6 | 12.6 | 9.2 | 12.5 | 8.1 | 8.1 |
| 5322 |  Heiterwang Austria | 7.7 | 6.7 | 3.5 | 4.4 | 4.4 | -- | -- | -- | -- |
| 5323 |  Liège Belgium | 7.7 | 6.2 | 6.9 | 7.7 | 8.7 | 6.5 | 9.2 | 10.8 | 10 |
