Most polluted cities in Europe
550 of 565 measured cities in 33 countries were above the WHO annual guideline so far this year. The worst was Târgu Mureş, Romania, at 29.6 µg/m³.
← Târgu Mureş 29.6 µg/m³
20 µg/m³5 WHO annual guideline
Countries
| Country | Cities | Median | Cities by band |
|---|---|---|---|
| Bosnia and Herzegovina | 2 | 25.3 | |
| Croatia | 1 | 20.8 | |
| North Macedonia | 10 | 18.6 | |
| Poland | 51 | 17.1 | |
| Montenegro | 5 | 16.1 | |
| Czechia | 2 | 16.0 | |
| Hungary | 13 | 14.9 | |
| Romania | 20 | 14.4 | |
| Serbia | 4 | 13.4 | |
| Malta | 2 | 12.7 | |
| Latvia | 3 | 11.7 | |
| Greece | 4 | 10.5 | |
| Slovenia | 8 | 10.2 | |
| Monaco | 1 | 10.1 | |
| Germany | 195 | 9.9 | |
| Italy | 1 | 9.9 | |
| Austria | 18 | 9.8 | |
| Switzerland | 6 | 9.8 | |
| Bulgaria | 7 | 9.7 | |
| The Netherlands | 29 | 9.6 | |
| Slovakia | 3 | 9.2 | |
| Luxembourg | 2 | 8.5 | |
| Belgium | 39 | 8.4 | |
| France | 100 | 8.0 | |
| Andorra | 1 | 7.8 | |
| United Kingdom | 4 | 7.6 | |
| Denmark | 1 | 6.9 | |
| Ireland | 10 | 6.5 | |
| Sweden | 2 | 6.1 | |
| Finland | 12 | 5.6 | |
| Estonia | 4 | 5.1 | |
| Portugal | 3 | 4.4 | |
| Iceland | 2 | 2.9 |
Worst cities
- 1Târgu Mureşlow-cost sensorsMureș County, Romania 895.9×
- 2PljevljaPljevlja, Montenegro 875.7×
- 3ŻywiecSilesia, Poland 865.5×
- 4OtwockMazovia, Poland 845.3×
- 5Bijelo PoljeBijelo Polje, Montenegro 825.2×
- 6Banja LukaSrpska, Bosnia and Herzegovina 825.1×
- 7SarajevoFederation of B&H, Bosnia and Herzegovina 815.0×
- 8KaliszGreater Poland, Poland 804.9×
- 9RadomskoŁódź Voivodeship, Poland 774.7×
- 10Gorzów WielkopolskiLubusz, Poland 774.7×
- 11DejCluj County, Romania 774.6×
- 12KłodzkoLower Silesia, Poland 774.6×
- 13Sighetu MarmaţieiMaramureş, Romania 764.5×
- 14WłocławekKujawsko-Pomorskie, Poland 754.4×
- 15BitolaBitola, North Macedonia 744.3×
- 16GostivarGostivar, North Macedonia 744.3×
- 17Târgu JiuGorj County, Romania 734.2×
- 18Jastrzębie ZdrójSilesia, Poland 734.2×
- 19Zagreblow-cost sensorsZagreb, Croatia 734.2×
- 20Czechowice-DziedziceSilesia, Poland 724.1×
- 21ZgierzŁódź Voivodeship, Poland 724.1×
- 22KrakówLesser Poland, Poland 724.0×
- 23KumanovoKumanovo, North Macedonia 714.0×
- 24KavadarciKavadarci, North Macedonia 714.0×
- 25Debrecenlow-cost sensorsHajdú-Bihar, Hungary 713.9×
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 09:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.