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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2105 |  Uniao das Freguesias de Poceirao e Marateca Portugal | 5.9 | 5.7 | 5.1 | -- | -- | -- | -- | -- | -- |
| 2106 |  Cerceda Spain | 5.9 | 5.9 | -- | -- | -- | -- | -- | -- | -- |
| 2107 |  Gislaved Sweden | 5.9 | 5.6 | -- | -- | -- | -- | -- | -- | -- |
| 2108 |  Arnside United Kingdom | 5.9 | -- | -- | -- | -- | -- | -- | -- | -- |
| 2109 | High Legh United Kingdom | 5.9 | 5 | 6.7 | -- | -- | -- | -- | -- | -- |
| 2110 | Greenock United Kingdom | 5.9 | 5.4 | 4.9 | 5.8 | 5.6 | 5 | 6.7 | 6.2 | 5.3 |
| 2111 |  Pederstrup Denmark | 5.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 2112 |  Turku Finland | 5.8 | 5.3 | 6.1 | 5.6 | 5.7 | -- | -- | -- | -- |
| 2113 |  Glashutten Germany | 5.8 | 5.2 | 4.9 | 5.9 | 6.2 | -- | -- | -- | -- |
| 2114 | Merzalben Germany | 5.8 | 5.8 | 5.9 | 6.2 | 5.1 | 4.7 | 5.4 | 7.4 | 6.3 |
| 2115 |  Vouliagmeni Greece | 5.8 | 5.4 | 11.6 | 13.2 | 12.8 | 12.5 | -- | -- | -- |
| 2116 | Agios Nikolaos Greece | 5.8 | 6 | 10 | -- | -- | -- | -- | -- | -- |
| 2117 |  Banagher Ireland | 5.8 | 5.4 | 6.5 | 46.2 | 17.4 | -- | -- | -- | -- |
| 2118 | Thomastown Ireland | 5.8 | 5.2 | 5.4 | 6.5 | 5 | -- | -- | -- | -- |
| 2119 | Ponta Delgada Portugal | 5.8 | 6.6 | -- | -- | -- | -- | -- | -- | -- |
| 2120 | Portimão Portugal | 5.8 | 6.1 | 9.1 | 10.9 | 6.7 | -- | -- | -- | -- |
| 2121 | Los Barrios Spain | 5.8 | 5.7 | -- | -- | -- | -- | -- | -- | -- |
| 2122 | Ferrol Spain | 5.8 | 6.2 | 6.2 | 6.8 | 7.5 | 7.4 | 7.8 | 8.1 | 8.7 |
| 2123 | Xove Spain | 5.8 | 5.9 | 5.7 | -- | -- | -- | -- | -- | -- |
| 2124 | Pradejon Spain | 5.8 | 6.9 | 7.8 | 9.3 | 6.8 | 9.5 | 10.8 | -- | -- |
| 2125 | Moelndal Sweden | 5.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 2126 | Newton Abbot United Kingdom | 5.8 | 4.7 | 5 | -- | -- | -- | -- | -- | -- |
| 2127 | Vantaa Finland | 5.7 | 5.9 | 5.2 | 5.5 | 6.3 | 5.8 | 6.5 | 7.3 | 6 |
| 2128 | Lübeck Germany | 5.7 | 6.2 | 7.1 | 10.9 | 13.3 | 10.3 | 9.7 | 11.4 | 10.6 |
| 2129 | An Muileann gCearr Ireland | 5.7 | 4.1 | 5.7 | 6.5 | 5 | -- | -- | -- | -- |
| 2130 |  Lillestrøm Norway | 5.7 | 7.3 | 7.2 | -- | -- | -- | -- | -- | -- |
| 2131 | Tønsberg Norway | 5.7 | 6 | 5.8 | -- | -- | -- | -- | -- | -- |
| 2132 | Salamanca Spain | 5.7 | 4.4 | 5.2 | 8.9 | 6.8 | 5.4 | -- | -- | -- |
| 2133 | Villa del Prado Spain | 5.7 | 7.7 | 7.4 | 8.9 | 10.3 | 10.8 | 11.1 | 10.8 | 9.4 |
| 2134 |  Sierre Switzerland | 5.7 | 6.2 | -- | -- | -- | -- | -- | -- | -- |
| 2135 | Harmondsworth United Kingdom | 5.7 | 5.2 | 6.8 | 7.8 | 6.4 | 4.8 | 4.3 | -- | -- |
| 2136 |  Bibewier Austria | 5.6 | 5.7 | -- | -- | -- | -- | -- | -- | -- |
| 2137 |  Vilsandi Estonia | 5.6 | 4.9 | 4.4 | 4 | 4.1 | 5.1 | 5.7 | 6 | 3.4 |
| 2138 | Lappeenranta Finland | 5.6 | 5.2 | 4.8 | 4.9 | 5.4 | 4.9 | 5.2 | 6.8 | 6 |
| 2139 | Kiel Germany | 5.6 | 6.5 | 7.3 | 9.4 | 9.8 | 9.9 | 12.2 | 13.3 | 12.5 |
| 2140 | Neuhaus am Rennweg Germany | 5.6 | 5.9 | 4.8 | 5.4 | 5.5 | -- | -- | -- | -- |
| 2141 | Chamusca Portugal | 5.6 | 5.3 | 4.9 | 4.6 | 5.8 | 5.6 | 7 | 7.2 | 8.4 |
| 2142 | Santiago do Cacém Portugal | 5.6 | 8.3 | 6.4 | 6.4 | 5 | 5.5 | 5.4 | 10.2 | -- |
| 2143 | Laza Spain | 5.6 | 4.2 | 4 | 6.8 | 5.6 | 5.8 | 5.9 | 6.2 | 7.5 |
| 2144 | Arrubal Spain | 5.6 | 5.6 | 6.8 | 7.8 | 8.8 | 8.3 | 7.6 | -- | -- |
| 2145 | Patones Spain | 5.6 | 6 | 5.7 | 6.6 | 6.8 | 6.9 | 7.2 | 7 | 8.4 |
| 2146 | Whaley Bridge United Kingdom | 5.6 | 5.2 | 5.8 | -- | -- | -- | -- | -- | -- |
| 2147 | Karhula Finland | 5.5 | 6 | -- | -- | -- | -- | -- | -- | -- |
| 2148 | Helsinki Finland | 5.5 | 5.5 | 4.9 | 5.5 | 5.9 | 5.2 | 6 | 7.2 | 5.4 |
| 2149 |  Blois France | 5.5 | 6.8 | 8.3 | 8 | 8.9 | -- | -- | -- | -- |
| 2150 | Saint-Gervais-la-Foret France | 5.5 | 6.8 | 8.1 | 8.1 | 8.6 | -- | -- | -- | -- |
| 2151 | Lagos Portugal | 5.5 | 5.9 | 7.7 | 9.2 | -- | -- | -- | -- | -- |
| 2152 | Setubal Portugal | 5.5 | 5.2 | 8.2 | -- | -- | -- | -- | -- | -- |
| 2153 | Salinas Spain | 5.5 | 6 | 6.8 | 7.1 | 8.4 | 7.5 | 7.5 | 7.9 | 8.6 |
| 2154 | Mundaka Spain | 5.5 | 4.9 | 6.2 | 6.5 | 6.5 | 7.5 | -- | -- | -- |
