SmogRank / History / City race
Cities in Poland, worst air first, day by day
Each measured city's average over the 30 days to every day since January 2023, worst first. Find your own city to follow it through the race, or keep to one country.
The worst cities in Poland for PM2.5 over the 30 days to 28 Apr 2023: Jastrzębie Zdrój 25.2 µg/m³, Racibórz 21.7 µg/m³ and Lublin 19.1 µg/m³.
- 1Jastrzębie ZdrójSilesia25.2
- 2RacibórzSilesia21.7
- 3LublinLublin19.1
- 4Wodzisław ŚląskiSilesia18.9
- 5Bielsko-BialaSilesia18.9
- 6ŁaskŁódź Voivodeship18.7
- 7KłodzkoLower Silesia18.5
- 8CieszynSilesia17.9
- 9KościanGreater Poland17.1
- 10KatowiceSilesia17.1
- 11WłoszczowaŚwiętokrzyskie16.9
- 12KrakówLesser Poland16.9
- 13RadomMazovia16.3
- 14ŻyrardówMazovia16.0
- 15OpoleOpole Voivodeship16.0
- 16TarnówLesser Poland15.4
- 17WłocławekKujawsko-Pomorskie15.4
- 18Jelenia GóraLower Silesia15.4
- 19ToruńKujawsko-Pomorskie15.0
- 20WrocławLower Silesia14.9
+ 37 more cities, the next at 14.8 µg/m³
Not counted on this day, too few days measured: Zgierz since 28 Apr 2023, Wschowa since 27 Apr 2023, Lwówek Śląski since 27 Apr 2023 and 8 more cities. Days missing from the source archive fall in this window, so fewer countries are counted.
Cities counted each day
A city's number is its average over the 30 days, shown only when 21 of them were measured (5 of 7 on the 7-day race), the same minimum as the 30- and 7-day boards. A city whose monitors go quiet fades out where it stood rather than sliding down, so a gap never reads as cleaner air. Some large countries are thin or missing because their monitors' licences don't allow reuse. How we rank.
Not covered: the government monitoring networks of China and Turkey, which publish only on their own websites. We are building the reader for China's network. Turkey's network doesn't answer requests from outside the country, so we can't read it. Most cities there are missing from this board, not clean. Why.