Most polluted cities in Europe
28 of 486 measured cities in 32 countries were above the WHO 24-hour guideline over the last 24 hours. The worst was Aosta, Italy, at 30.5 µg/m³.
← Aosta 30.5 µg/m³
30 µg/m³15 WHO 24-hour guideline0
Countries
| Country | Cities | Median | Cities by band |
|---|---|---|---|
| Denmark | 1 | 23.2 | |
| Croatia | 1 | 19.2 | |
| Serbia | 6 | 15.0 | |
| Italy | 3 | 14.3 | |
| Bosnia and Herzegovina | 4 | 13.7 | |
| Hungary | 5 | 11.8 | |
| Slovakia | 22 | 11.5 | |
| Czechia | 2 | 11.4 | |
| Monaco | 1 | 10.5 | |
| Sweden | 4 | 10.2 | |
| Romania | 19 | 10.1 | |
| Germany | 139 | 9.4 | |
| Slovenia | 6 | 9.4 | |
| Austria | 16 | 9.3 | |
| North Macedonia | 8 | 9.1 | |
| Switzerland | 3 | 8.9 | |
| Montenegro | 4 | 8.8 | |
| Latvia | 4 | 8.0 | |
| Malta | 4 | 7.8 | |
| Andorra | 1 | 7.4 | |
| Greece | 2 | 6.8 | |
| Finland | 10 | 6.2 | |
| Spain | 50 | 6.0 | |
| Bulgaria | 9 | 5.9 | |
| Estonia | 4 | 5.6 | |
| Ireland | 24 | 5.4 | |
| The Netherlands | 16 | 5.0 | |
| France | 81 | 4.7 | |
| Belgium | 29 | 4.6 | |
| Portugal | 3 | 1.9 | |
| United Kingdom | 4 | 1.4 | |
| Jersey | 1 | 1.4 |
Worst cities
- 1AostaAosta Valley, Italy 912.0×
- 2PrijedorSrpska, Bosnia and Herzegovina 892.0×
- 3LandshutBavaria, Germany 801.7×
- 4BellinzonaTicino, Switzerland 781.6×
- 5Copenhagenlow-cost sensorsCapital Region, Denmark 771.5×
- 6KelheimBavaria, Germany 741.4×
- 7NurembergBavaria, Germany 721.4×
- 8Zagreblow-cost sensorsZagreb, Croatia 701.3×
- 9BurghausenBavaria, Germany 701.3×
- 10Banja LukaSrpska, Bosnia and Herzegovina 691.2×
- 11KikindaVojvodina, Serbia 681.2×
- 12TeltowBrandenburg, Germany 671.2×
- 13Novi PazarCentral Serbia, Serbia 671.2×
- 14Târgu Mureşlow-cost sensorsMureș County, Romania 671.2×
- 15NauenBrandenburg, Germany 661.2×
- 16Novi SadVojvodina, Serbia 661.1×
- 17TraunreutBavaria, Germany 651.1×
- 18IngolstadtBavaria, Germany 651.1×
- 19PassauBavaria, Germany 641.1×
- 20Königs WusterhausenBrandenburg, Germany 641.1×
- 21NeubrandenburgMecklenburg-Vorpommern, Germany 641.1×
- 22GeraThuringia, Germany 641.1×
- 23ArlesProvence-Alpes-Côte d'Azur, France 631.1×
- 24PotsdamBrandenburg, Germany 631.0×
- 25MurciaMurcia, Spain 631.0×
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Updated 2026-10-02 07:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.