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 29 Mar 2023: Radomsko 36.2 µg/m³, Kościan 33.2 µg/m³ and Włocławek 29.2 µg/m³.
- 1RadomskoŁódź Voivodeship36.2
- 2KościanGreater Poland33.2
- 3WłocławekKujawsko-Pomorskie29.2
- 4OtwockMazovia27.4
- 5LublinLublin27.3
- 6ŁaskŁódź Voivodeship27.1
- 7Nakło nad NoteciąKujawsko-Pomorskie26.8
- 8StarachowiceŚwiętokrzyskie25.9
- 9DębicaSubcarpathia25.7
- 10LegionowoMazovia25.5
- 11RacibórzSilesia25.2
- 12KielceŚwiętokrzyskie24.9
- 13Jastrzębie ZdrójSilesia24.9
- 14SiedlceMazovia24.0
- 15KutnoŁódź Voivodeship24.0
- 16KrakówLesser Poland24.0
- 17KłodzkoLower Silesia23.9
- 18RzeszówSubcarpathia23.6
- 19WawerMazovia23.4
- 20Wodzisław ŚląskiSilesia22.8
+ 50 more cities, the next at 22.7 µg/m³
Not counted on this day, too few days measured: Kalisz since 14 Mar 2023, Wschowa since 5 Feb 2023, Włoszczowa since 5 Feb 2023 and 3 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.