SmogRank / Countries / Poland / September 2026
Most polluted cities in Poland, September 2026
56 cities in Poland ranked by their average PM2.5 over the 30 days. Worst: Otwock at 14.7 µg/m³, #236 of 2,332 cities in the world. Cleanest: Olsztyn at 5.0. A city needs measurements on 70% of the days to be ranked.
- 1OtwockMazovia 14.7
- 2KaliszGreater Poland 12.2
- 3RadomskoŁódź Voivodeship 11.7
- 4WłocławekKujawsko-Pomorskie 11.2
- 5RadomMazovia 10.6
- 6WrocławLower Silesia 10.4
- 7StarachowiceŚwiętokrzyskie 10.2
- 7Bielsko-BialaSilesia 10.2
- 9PruszkówMazovia 10.1
- 10KatowiceSilesia 9.9
- 11ToruńKujawsko-Pomorskie 9.8
- 11ŁódźŁódź Voivodeship 9.8
- 11Jastrzębie ZdrójSilesia 9.8
- 14GdańskPomerania 9.7
- 15ZamośćLublin 9.6
- 16NiskoSubcarpathia 9.5
- 17LublinLublin 9.4
- 17BydgoszczKujawsko-Pomorskie 9.4
- 19RzeszówSubcarpathia 9.2
- 20ŻywiecSilesia 9.0
- 20ZgierzŁódź Voivodeship 9.0
- 22PłockMazovia 8.9
- 23KielceŚwiętokrzyskie 8.7
- 24JarosławSubcarpathia 8.6
- 25KrakówLesser Poland 8.5
- 26LegionowoMazovia 8.4
- 26PoznańGreater Poland 8.4
- 28Konstancin-JeziornaMazovia 8.1
- 29KłodzkoLower Silesia 8.0
- 30WawerMazovia 7.9
- 30KrosnoSubcarpathia 7.9
- 30BiałystokPodlasie 7.9
- 30OpoleOpole Voivodeship 7.9
- 30Czechowice-DziedziceSilesia 7.9
- 35WarsawMazovia 7.8
- 35JasłoSubcarpathia 7.8
- 35SzczecinWest Pomerania 7.8
- 35BrzegOpole Voivodeship 7.8
- 39MielecSubcarpathia 7.6
- 40CiechanówMazovia 7.5
- 40KościerzynaPomerania 7.5
- 42EłkWarmia-Masuria 7.4
- 43Gorzów WielkopolskiLubusz 7.3
- 44ElblągWarmia-Masuria 7.0
- 45DębicaSubcarpathia 6.9
- 46RacibórzSilesia 6.8
- 47Jelenia GóraLower Silesia 6.6
- 48ŻaryLubusz 6.5
- 49AugustówPodlasie 6.4
- 50ŻyrardówMazovia 6.3
- 50PrzemyślSubcarpathia 6.3
- 52Kędzierzyn-KoźleOpole Voivodeship 6.1
- 53TarnówLesser Poland 5.8
- 53Zielona GóraLubusz 5.8
- 55SuwałkiPodlasie 5.7
- 56OlsztynWarmia-Masuria 5.0
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+