SmogRank / Episodes / Poland

North-eastern Europe, December 2025

For 6 days, from 2 to 7 December 2025, 55 cities in Poland, Germany, Slovakia and 2 more countries had PM2.5 at least twice their usual for the time of year. The worst reading was Żywiec, Silesia, Poland: 158.0 µg/m³ on 5 December, about 5.9× its usual 26.9.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached55in 5 countries
Days62 to 7 December 2025
Worst day5 December33 cities counted
Furthest above usual5.9ׯywiec

Day by day

5 December 33 cities at twice their usual or more
Hradec KrálovéPardubiceOlomoucOpavaLiberecŽďár nad SázavouBogatyniaPřerovHraniceŽideniceBrnoMladá BoleslavOstravaBohumínFrýdek-MístekKarvináHodonínŘíčanyZnojmoČeský TěšínTřinecKatowiceCottbusŁaskPragueSenicaDěčínMalackyRadomskoŽilinaKladnoZgierzKlosterneuburgWłocławekŁódźLubnjowPezinokBerounKutnoDevínska Nová VesViennaSenecBratislavaSereďPerchtoldsdorfPrievidzaMödlingČeské BudějoviceSankt PöltenNitraBadenHandlováBytówKościerzynaPłockKrakówBanská BystricaAmstettenZvolenLiptovský MikulášPilsenLuckenwaldeLinzKleinmachnowAnsfeldenTraunSteyrEisenzickenŻyrardówPotsdamEsztergomFalkenseeKielceWelsNauenWittenbergPopradPassauSkarżysko-KamiennaSokolovPruszkówAltenburgBudapestCiechanówBrandenburg an der HavelStarachowiceBitterfeld-WolfenLegionowoWarsawRadomGyálDessauKonstancin-JeziornaGreizZeitzWawerGyöngyösGeraOlsztynOtwockMerseburgWeißenfelsHalle (Saale)MarktredwitzWeidenKöthenMielecKazincbarcikaBurghausenBardejovSchwandorf in BayernSalzburgBurg bei MagdeburgBernburgStendalJenaKošiceTraunreutMagdeburgKrosnoKelheimWittenbergeSaalfelden am Steinernen MeerWeimarNiskoErfurtHalberstadtIngolstadtHansestadt SalzwedelSninaSondershausenNurembergLublinNordhausenMunichBambergWernigerodeSuhlJarosławWolfsburgDebrecenStarnbergPrzemyślMühlhausenEłkBraunschweigMeiningenGoslarAnsbachSalzgitterEisenachAugsburgDuderstadtInnsbruckLübeckLüneburgBiałystokAugustówSuwałkiKempten (Allgäu)TrebišovMiskolcNyíregyházaElblągJasłoOranienburgSzczecinŚwiecieTeltowGyőrRzeszówKaliszToruńČadcaDębicaWrocławBerlinKędzierzyn-KoźleKołobrzegBrzegBydgoszczSulechówKłodzkoJastrzębie ZdrójPoznańVranov nad TopľouBernau bei BerlinOpoleTarnówBlankenfelde-MahlowNeuenhagenBielsko-BialaGdyniaGorzów WielkopolskiCzechowice-DziedziceGdańskFrankfurt (Oder)Schwedt (Oder)RacibórzStodůlkyKönigs WusterhausenZielona GóraStrausbergWismarEisenhüttenstadtNeuruppinSchwerinRostockHavířovŻaryNeubrandenburgJelenia GóraGüstrowStralsundŻywiec
29 Nov301 Dec2345678910
Every measured city in the area, coloured by its PM2.5 that day; a dark ring marks a city at twice its usual or more. Bars: cities counted each day, coloured by their median level. Choose a day or press play; without JavaScript, the days link to that day's world ranking.

How it spread

StodůlkyStodůlky, 29 November: 151.8 µg/m³, 3.4× usualStodůlky, 30 November: 140.0 µg/m³, 3.2× usualStodůlky, 1 December: 146.0 µg/m³, 3.3× usualStodůlky, 2 December: 149.2 µg/m³, 3.4× usualStodůlky, 3 December: 151.8 µg/m³, 3.4× usualStodůlky, 4 December: 34.4 µg/m³, 0.8× usualStodůlky, 5 December: 32.3 µg/m³, 0.7× usualStodůlky, 6 December: 30.3 µg/m³, 0.7× usualStodůlky, 7 December: 25.2 µg/m³, 0.6× usualStodůlky, 8 December: 7.1 µg/m³, 0.2× usualStodůlky, 9 December: 13.9 µg/m³, 0.3× usualStodůlky, 10 December: 23.5 µg/m³, 0.5× usualŻywiecŻywiec, 29 November: no readingŻywiec, 30 November: no readingŻywiec, 1 December: no readingŻywiec, 2 December: 80.2 µg/m³, 3.0× usualŻywiec, 3 December: 125.0 µg/m³, 4.6× usualŻywiec, 4 December: 131.0 µg/m³, 4.9× usualŻywiec, 5 December: 158.0 µg/m³, 5.9× usualŻywiec, 6 December: 92.4 µg/m³, 3.4× usualŻywiec, 7 December: 29.9 µg/m³, 1.1× usualŻywiec, 8 December: 19.4 µg/m³, 0.7× usualŻywiec, 9 December: 15.5 µg/m³, 0.6× usualŻywiec, 10 December: 33.6 µg/m³, 1.2× usualJelenia GóraJelenia Góra, 29 November: no readingJelenia Góra, 30 November: no readingJelenia Góra, 1 December: no readingJelenia Góra, 2 December: 40.3 µg/m³, 3.2× usualJelenia Góra, 3 December: 57.4 µg/m³, 4.5× usualJelenia Góra, 4 December: 58.2 µg/m³, 4.6× usualJelenia Góra, 5 December: 18.4 µg/m³, 1.4× usualJelenia Góra, 6 December: 30.7 µg/m³, 2.4× usualJelenia Góra, 7 December: 21.5 µg/m³, 1.7× usualJelenia Góra, 8 December: 24.5 µg/m³, 1.9× usualJelenia Góra, 9 December: 15.5 µg/m³, 1.2× usualJelenia Góra, 10 December: 14.9 µg/m³, 1.2× usualGorzów WielkopolskiGorzów Wielkopolski, 29 November: no readingGorzów Wielkopolski, 30 November: no readingGorzów Wielkopolski, 1 December: no readingGorzów Wielkopolski, 2 December: 32.7 µg/m³, 2.0× usualGorzów Wielkopolski, 3 December: 32.9 µg/m³, 2.1× usualGorzów Wielkopolski, 4 December: 48.9 µg/m³, 3.1× usualGorzów Wielkopolski, 5 December: 46.3 µg/m³, 2.9× usualGorzów Wielkopolski, 6 December: 35.0 µg/m³, 2.2× usualGorzów Wielkopolski, 7 December: 32.9 µg/m³, 2.1× usualGorzów Wielkopolski, 8 December: 23.7 µg/m³, 1.5× usualGorzów Wielkopolski, 9 December: 18.0 µg/m³, 1.1× usualGorzów Wielkopolski, 10 December: 19.5 µg/m³, 1.2× usualJastrzębie ZdrójJastrzębie Zdrój, 29 November: no readingJastrzębie Zdrój, 30 November: no readingJastrzębie Zdrój, 1 December: no readingJastrzębie Zdrój, 2 December: 32.8 µg/m³, 1.5× usualJastrzębie Zdrój, 3 December: 44.6 µg/m³, 2.0× usualJastrzębie Zdrój, 4 December: 55.2 µg/m³, 2.5× usualJastrzębie Zdrój, 5 December: 41.7 µg/m³, 1.9× usualJastrzębie Zdrój, 6 December: 59.4 µg/m³, 2.7× usualJastrzębie Zdrój, 7 December: 21.4 µg/m³, 1.0× usualJastrzębie Zdrój, 8 December: 15.0 µg/m³, 0.7× usualJastrzębie Zdrój, 9 December: 14.8 µg/m³, 0.7× usualJastrzębie Zdrój, 10 December: 20.4 µg/m³, 0.9× usualPoznańPoznań, 29 November: no readingPoznań, 30 November: no readingPoznań, 1 December: no readingPoznań, 2 December: 33.6 µg/m³, 1.8× usualPoznań, 3 December: 41.9 µg/m³, 2.2× usualPoznań, 4 December: 51.1 µg/m³, 2.7× usualPoznań, 5 December: 38.1 µg/m³, 2.0× usualPoznań, 6 December: 37.8 µg/m³, 2.0× usualPoznań, 7 December: 29.5 µg/m³, 1.6× usualPoznań, 8 December: 20.8 µg/m³, 1.1× usualPoznań, 9 December: 16.0 µg/m³, 0.9× usualPoznań, 10 December: 18.7 µg/m³, 1.0× usualRacibórzRacibórz, 29 November: no readingRacibórz, 30 November: no readingRacibórz, 1 December: no readingRacibórz, 2 December: 21.2 µg/m³, 1.2× usualRacibórz, 3 December: 41.1 µg/m³, 2.4× usualRacibórz, 4 December: 59.9 µg/m³, 3.4× usualRacibórz, 5 December: 40.7 µg/m³, 2.3× usualRacibórz, 6 December: 41.2 µg/m³, 2.4× usualRacibórz, 7 December: 11.7 µg/m³, 0.7× usualRacibórz, 8 December: 12.2 µg/m³, 0.7× usualRacibórz, 9 December: 10.3 µg/m³, 0.6× usualRacibórz, 10 December: 13.2 µg/m³, 0.8× usualBrzegBrzeg, 29 November: no readingBrzeg, 30 November: no readingBrzeg, 1 December: no readingBrzeg, 2 December: 21.3 µg/m³, 1.2× usualBrzeg, 3 December: 37.7 µg/m³, 2.2× usualBrzeg, 4 December: 44.1 µg/m³, 2.6× usualBrzeg, 5 December: 37.3 µg/m³, 2.2× usualBrzeg, 6 December: 33.8 µg/m³, 2.0× usualBrzeg, 7 December: 22.2 µg/m³, 1.3× usualBrzeg, 8 December: 13.5 µg/m³, 0.8× usualBrzeg, 9 December: 11.7 µg/m³, 0.7× usualBrzeg, 10 December: 16.0 µg/m³, 0.9× usualČadcaČadca, 29 November: no readingČadca, 30 November: no readingČadca, 1 December: no readingČadca, 2 December: no readingČadca, 3 December: 37.6 µg/m³, 2.4× usualČadca, 4 December: no readingČadca, 5 December: no readingČadca, 6 December: no readingČadca, 7 December: no readingČadca, 8 December: 10.7 µg/m³, 0.7× usualČadca, 9 December: 8.8 µg/m³, 0.6× usualČadca, 10 December: 14.5 µg/m³, 0.9× usualOpoleOpole, 29 November: no readingOpole, 30 November: no readingOpole, 1 December: no readingOpole, 2 December: 29.4 µg/m³, 1.7× usualOpole, 3 December: 35.6 µg/m³, 2.1× usualOpole, 4 December: 50.2 µg/m³, 2.9× usualOpole, 5 December: 42.0 µg/m³, 2.4× usualOpole, 6 December: 47.4 µg/m³, 2.7× usualOpole, 7 December: 24.2 µg/m³, 1.4× usualOpole, 8 December: 17.8 µg/m³, 1.0× usualOpole, 9 December: 11.7 µg/m³, 0.7× usualOpole, 10 December: no readingWrocławWrocław, 29 November: no readingWrocław, 30 November: no readingWrocław, 1 December: no readingWrocław, 2 December: 28.7 µg/m³, 1.7× usualWrocław, 3 December: 34.8 µg/m³, 2.1× usualWrocław, 4 December: 42.8 µg/m³, 2.5× usualWrocław, 5 December: 40.1 µg/m³, 2.4× usualWrocław, 6 December: 31.4 µg/m³, 1.9× usualWrocław, 7 December: 20.9 µg/m³, 1.2× usualWrocław, 8 December: 16.1 µg/m³, 1.0× usualWrocław, 9 December: 14.8 µg/m³, 0.9× usualWrocław, 10 December: 17.3 µg/m³, 1.0× usualSulechówSulechów, 29 November: no readingSulechów, 30 November: no readingSulechów, 1 December: no readingSulechów, 2 December: 16.4 µg/m³, 0.8× usualSulechów, 3 December: 34.7 µg/m³, 1.8× usualSulechów, 4 December: 51.0 µg/m³, 2.6× usualSulechów, 5 December: 39.3 µg/m³, 2.0× usualSulechów, 6 December: 21.7 µg/m³, 1.1× usualSulechów, 7 December: 14.1 µg/m³, 0.7× usualSulechów, 8 December: 13.1 µg/m³, 0.7× usualSulechów, 9 December: 10.9 µg/m³, 0.6× usualSulechów, 10 December: 9.7 µg/m³, 0.5× usualŻaryŻary, 29 November: no readingŻary, 30 November: no readingŻary, 1 December: no readingŻary, 2 December: 23.7 µg/m³, 2.3× usualŻary, 3 December: 31.5 µg/m³, 3.1× usualŻary, 4 December: 46.1 µg/m³, 4.5× usualŻary, 5 December: 44.4 µg/m³, 4.3× usualŻary, 6 December: 29.4 µg/m³, 2.9× usualŻary, 7 December: 18.1 µg/m³, 1.8× usualŻary, 8 December: 11.6 µg/m³, 1.1× usualŻary, 9 December: 13.2 µg/m³, 1.3× usualŻary, 10 December: 12.6 µg/m³, 1.2× usualBydgoszczBydgoszcz, 29 November: no readingBydgoszcz, 30 November: no readingBydgoszcz, 1 December: no readingBydgoszcz, 2 December: 28.3 µg/m³, 1.9× usualBydgoszcz, 3 December: 29.8 µg/m³, 2.0× usualBydgoszcz, 4 December: 36.2 µg/m³, 2.5× usualBydgoszcz, 5 December: 31.2 µg/m³, 2.1× usualBydgoszcz, 6 December: 38.3 µg/m³, 2.6× usualBydgoszcz, 7 December: 30.4 µg/m³, 2.1× usualBydgoszcz, 8 December: 23.8 µg/m³, 1.6× usualBydgoszcz, 9 December: 12.1 µg/m³, 0.8× usualBydgoszcz, 10 December: 14.2 µg/m³, 1.0× usualBielsko-BialaBielsko-Biala, 29 November: no readingBielsko-Biala, 30 November: no readingBielsko-Biala, 1 December: no readingBielsko-Biala, 2 December: no readingBielsko-Biala, 3 December: no readingBielsko-Biala, 4 December: 58.4 µg/m³, 3.1× usualBielsko-Biala, 5 December: no readingBielsko-Biala, 6 December: no readingBielsko-Biala, 7 December: 33.8 µg/m³, 1.8× usualBielsko-Biala, 8 December: 11.9 µg/m³, 0.6× usualBielsko-Biala, 9 December: 10.6 µg/m³, 0.6× usualBielsko-Biala, 10 December: 40.9 µg/m³, 2.1× usualHavířovHavířov, 29 November: no readingHavířov, 30 November: no readingHavířov, 1 December: no readingHavířov, 2 December: no readingHavířov, 3 December: no readingHavířov, 4 December: 56.6 µg/m³, 4.3× usualHavířov, 5 December: no readingHavířov, 6 December: no readingHavířov, 7 December: 16.6 µg/m³, 1.3× usualHavířov, 8 December: no readingHavířov, 9 December: 12.4 µg/m³, 0.9× usualHavířov, 10 December: 18.7 µg/m³, 1.4× usualCzechowice-DziedziceCzechowice-Dziedzice, 29 November: no readingCzechowice-Dziedzice, 30 November: no readingCzechowice-Dziedzice, 1 December: no readingCzechowice-Dziedzice, 2 December: 23.7 µg/m³, 1.2× usualCzechowice-Dziedzice, 3 December: 31.8 µg/m³, 1.6× usualCzechowice-Dziedzice, 4 December: 46.0 µg/m³, 2.3× usualCzechowice-Dziedzice, 5 December: 34.1 µg/m³, 1.7× usualCzechowice-Dziedzice, 6 December: 64.2 µg/m³, 3.2× usualCzechowice-Dziedzice, 7 December: 36.4 µg/m³, 1.8× usualCzechowice-Dziedzice, 8 December: 33.7 µg/m³, 1.7× usualCzechowice-Dziedzice, 9 December: 17.5 µg/m³, 0.9× usualCzechowice-Dziedzice, 10 December: 19.6 µg/m³, 1.0× usualTarnówTarnów, 29 November: no readingTarnów, 30 November: no readingTarnów, 1 December: no readingTarnów, 2 December: 20.0 µg/m³, 1.4× usualTarnów, 3 December: 23.2 µg/m³, 1.6× usualTarnów, 4 December: 44.7 µg/m³, 3.0× usualTarnów, 5 December: 28.4 µg/m³, 1.9× usualTarnów, 6 December: 27.2 µg/m³, 1.8× usualTarnów, 7 December: 39.0 µg/m³, 2.6× usualTarnów, 8 December: 19.3 µg/m³, 1.3× usualTarnów, 9 December: 10.4 µg/m³, 0.7× usualTarnów, 10 December: no readingKędzierzyn-KoźleKędzierzyn-Koźle, 29 November: no readingKędzierzyn-Koźle, 30 November: no readingKędzierzyn-Koźle, 1 December: no readingKędzierzyn-Koźle, 2 December: 21.2 µg/m³, 1.3× usualKędzierzyn-Koźle, 3 December: 29.9 µg/m³, 1.8× usualKędzierzyn-Koźle, 4 December: 42.7 µg/m³, 2.6× usualKędzierzyn-Koźle, 5 December: 29.8 µg/m³, 1.8× usualKędzierzyn-Koźle, 6 December: 39.3 µg/m³, 2.4× usualKędzierzyn-Koźle, 7 December: 9.2 µg/m³, 0.6× usualKędzierzyn-Koźle, 8 December: 9.4 µg/m³, 0.6× usualKędzierzyn-Koźle, 9 December: 6.9 µg/m³, 0.4× usualKędzierzyn-Koźle, 10 December: 11.8 µg/m³, 0.7× usualZielona GóraZielona Góra, 29 November: no readingZielona Góra, 30 November: no readingZielona Góra, 1 December: no readingZielona Góra, 2 December: 19.3 µg/m³, 1.8× usualZielona Góra, 3 December: 23.5 µg/m³, 2.2× usualZielona Góra, 4 December: 36.8 µg/m³, 3.5× usualZielona Góra, 5 December: 33.2 µg/m³, 3.2× usualZielona Góra, 6 December: 18.2 µg/m³, 1.7× usualZielona Góra, 7 December: 13.5 µg/m³, 1.3× usualZielona Góra, 8 December: 8.4 µg/m³, 0.8× usualZielona Góra, 9 December: 5.9 µg/m³, 0.6× usualZielona Góra, 10 December: 7.4 µg/m³, 0.7× usualGyőrGyőr, 29 November: no readingGyőr, 30 November: no readingGyőr, 1 December: no readingGyőr, 2 December: 13.6 µg/m³, 0.9× usualGyőr, 3 December: 22.4 µg/m³, 1.5× usualGyőr, 4 December: 33.8 µg/m³, 2.3× usualGyőr, 5 December: 19.8 µg/m³, 1.4× usualGyőr, 6 December: 20.1 µg/m³, 1.4× usualGyőr, 7 December: 16.8 µg/m³, 1.2× usualGyőr, 8 December: 17.8 µg/m³, 1.2× usualGyőr, 9 December: 24.5 µg/m³, 1.7× usualGyőr, 10 December: 17.5 µg/m³, 1.2× usualGdyniaGdynia, 29 November: no readingGdynia, 30 November: no readingGdynia, 1 December: no readingGdynia, 2 December: 24.2 µg/m³, 2.1× usualGdynia, 3 December: 26.3 µg/m³, 2.2× usualGdynia, 4 December: 33.5 µg/m³, 2.9× usualGdynia, 5 December: 29.5 µg/m³, 2.5× usualGdynia, 6 December: 36.2 µg/m³, 3.1× usualGdynia, 7 December: 30.6 µg/m³, 2.6× usualGdynia, 8 December: 25.5 µg/m³, 2.2× usualGdynia, 9 December: 16.7 µg/m³, 1.4× usualGdynia, 10 December: 14.5 µg/m³, 1.2× usualGdańskGdańsk, 29 November: no readingGdańsk, 30 November: no readingGdańsk, 1 December: no readingGdańsk, 2 December: 21.9 µg/m³, 2.0× usualGdańsk, 3 December: 23.7 µg/m³, 2.2× usualGdańsk, 4 December: 32.3 µg/m³, 3.0× usualGdańsk, 5 December: 26.8 µg/m³, 2.5× usualGdańsk, 6 December: 35.8 µg/m³, 3.3× usualGdańsk, 7 December: 29.4 µg/m³, 2.7× usualGdańsk, 8 December: 25.6 µg/m³, 2.3× usualGdańsk, 9 December: 15.0 µg/m³, 1.4× usualGdańsk, 10 December: 15.0 µg/m³, 1.4× usualKołobrzegKołobrzeg, 29 November: no readingKołobrzeg, 30 November: no readingKołobrzeg, 1 December: no readingKołobrzeg, 2 December: 17.3 µg/m³, 1.6× usualKołobrzeg, 3 December: 21.1 µg/m³, 1.9× usualKołobrzeg, 4 December: 28.1 µg/m³, 2.6× usualKołobrzeg, 5 December: 26.5 µg/m³, 2.4× usualKołobrzeg, 6 December: 17.5 µg/m³, 1.6× usualKołobrzeg, 7 December: 19.4 µg/m³, 1.8× usualKołobrzeg, 8 December: 12.3 µg/m³, 1.1× usualKołobrzeg, 9 December: 12.5 µg/m³, 1.1× usualKołobrzeg, 10 December: 12.5 µg/m³, 1.1× usualSzczecinSzczecin, 29 November: no readingSzczecin, 30 November: no readingSzczecin, 1 December: no readingSzczecin, 2 December: 17.9 µg/m³, 1.4× usualSzczecin, 3 December: 21.7 µg/m³, 1.7× usualSzczecin, 4 December: 27.4 µg/m³, 2.2× usualSzczecin, 5 December: 27.7 µg/m³, 2.2× usualSzczecin, 6 December: 18.8 µg/m³, 1.5× usualSzczecin, 7 December: 13.4 µg/m³, 1.1× usualSzczecin, 8 December: 9.8 µg/m³, 0.8× usualSzczecin, 9 December: 9.6 µg/m³, 0.8× usualSzczecin, 10 December: 11.1 µg/m³, 0.9× usualEisenhüttenstadtEisenhüttenstadt, 29 November: no readingEisenhüttenstadt, 30 November: no readingEisenhüttenstadt, 1 December: no readingEisenhüttenstadt, 2 December: 13.7 µg/m³, 1.6× usualEisenhüttenstadt, 3 December: 17.0 µg/m³, 2.0× usualEisenhüttenstadt, 4 December: 25.8 µg/m³, 3.0× usualEisenhüttenstadt, 5 December: 32.8 µg/m³, 3.9× usualEisenhüttenstadt, 6 December: 15.5 µg/m³, 1.8× usualEisenhüttenstadt, 7 December: 8.3 µg/m³, 1.0× usualEisenhüttenstadt, 8 December: 5.9 µg/m³, 0.7× usualEisenhüttenstadt, 9 December: 3.7 µg/m³, 0.4× usualEisenhüttenstadt, 10 December: 6.6 µg/m³, 0.8× usualKłodzkoKłodzko, 29 November: no readingKłodzko, 30 November: no readingKłodzko, 1 December: no readingKłodzko, 2 December: 15.4 µg/m³, 0.9× usualKłodzko, 3 December: 16.4 µg/m³, 1.0× usualKłodzko, 4 December: 28.7 µg/m³, 1.7× usualKłodzko, 5 December: 45.4 µg/m³, 2.7× usualKłodzko, 6 December: 16.2 µg/m³, 1.0× usualKłodzko, 7 December: 21.5 µg/m³, 1.3× usualKłodzko, 8 December: 11.5 µg/m³, 0.7× usualKłodzko, 9 December: 8.5 µg/m³, 0.5× usualKłodzko, 10 December: 13.2 µg/m³, 0.8× usualNeubrandenburgNeubrandenburg, 29 November: no readingNeubrandenburg, 30 November: no readingNeubrandenburg, 1 December: no readingNeubrandenburg, 2 December: 14.9 µg/m³, 1.9× usualNeubrandenburg, 3 December: 21.5 µg/m³, 2.8× usualNeubrandenburg, 4 December: 21.5 µg/m³, 2.8× usualNeubrandenburg, 5 December: 35.5 µg/m³, 4.6× usualNeubrandenburg, 6 December: 17.0 µg/m³, 2.2× usualNeubrandenburg, 7 December: 10.7 µg/m³, 1.4× usualNeubrandenburg, 8 December: 8.0 µg/m³, 1.0× usualNeubrandenburg, 9 December: 9.5 µg/m³, 1.2× usualNeubrandenburg, 10 December: 11.3 µg/m³, 1.5× usualRostockRostock, 29 November: no readingRostock, 30 November: no readingRostock, 1 December: no readingRostock, 2 December: 11.9 µg/m³, 1.6× usualRostock, 3 December: 17.0 µg/m³, 2.3× usualRostock, 4 December: 19.3 µg/m³, 2.6× usualRostock, 5 December: 31.9 µg/m³, 4.3× usualRostock, 6 December: 16.1 µg/m³, 2.1× usualRostock, 7 December: 9.7 µg/m³, 1.3× usualRostock, 8 December: 6.5 µg/m³, 0.9× usualRostock, 9 December: 10.9 µg/m³, 1.5× usualRostock, 10 December: 10.1 µg/m³, 1.3× usualStralsundStralsund, 29 November: no readingStralsund, 30 November: no readingStralsund, 1 December: no readingStralsund, 2 December: 11.9 µg/m³, 1.9× usualStralsund, 3 December: 20.0 µg/m³, 3.2× usualStralsund, 4 December: 22.5 µg/m³, 3.6× usualStralsund, 5 December: 31.5 µg/m³, 5.0× usualStralsund, 6 December: 18.7 µg/m³, 3.0× usualStralsund, 7 December: 10.3 µg/m³, 1.6× usualStralsund, 8 December: 5.7 µg/m³, 0.9× usualStralsund, 9 December: 9.3 µg/m³, 1.5× usualStralsund, 10 December: 7.9 µg/m³, 1.3× usualGüstrowGüstrow, 29 November: no readingGüstrow, 30 November: no readingGüstrow, 1 December: 7.8 µg/m³, 1.2× usualGüstrow, 2 December: 11.6 µg/m³, 1.8× usualGüstrow, 3 December: 15.1 µg/m³, 2.3× usualGüstrow, 4 December: 17.0 µg/m³, 2.6× usualGüstrow, 5 December: 30.6 µg/m³, 4.7× usualGüstrow, 6 December: 14.0 µg/m³, 2.2× usualGüstrow, 7 December: 8.4 µg/m³, 1.3× usualGüstrow, 8 December: 5.4 µg/m³, 0.8× usualGüstrow, 9 December: 9.9 µg/m³, 1.5× usualGüstrow, 10 December: 8.6 µg/m³, 1.3× usualFrankfurt (Oder)Frankfurt (Oder), 29 November: no readingFrankfurt (Oder), 30 November: no readingFrankfurt (Oder), 1 December: 6.3 µg/m³, 0.7× usualFrankfurt (Oder), 2 December: 14.1 µg/m³, 1.6× usualFrankfurt (Oder), 3 December: 16.6 µg/m³, 1.9× usualFrankfurt (Oder), 4 December: 23.3 µg/m³, 2.7× usualFrankfurt (Oder), 5 December: 29.6 µg/m³, 3.4× usualFrankfurt (Oder), 6 December: 15.5 µg/m³, 1.8× usualFrankfurt (Oder), 7 December: 7.9 µg/m³, 0.9× usualFrankfurt (Oder), 8 December: 6.4 µg/m³, 0.7× usualFrankfurt (Oder), 9 December: 5.1 µg/m³, 0.6× usualFrankfurt (Oder), 10 December: 6.8 µg/m³, 0.8× usualBerlinBerlin, 29 November: no readingBerlin, 30 November: no readingBerlin, 1 December: 12.3 µg/m³, 1.1× usualBerlin, 2 December: 17.6 µg/m³, 1.5× usualBerlin, 3 December: 20.4 µg/m³, 1.8× usualBerlin, 4 December: 18.7 µg/m³, 1.6× usualBerlin, 5 December: 29.5 µg/m³, 2.6× usualBerlin, 6 December: 16.0 µg/m³, 1.4× usualBerlin, 7 December: 11.5 µg/m³, 1.0× usualBerlin, 8 December: 8.9 µg/m³, 0.8× usualBerlin, 9 December: 8.9 µg/m³, 0.8× usualBerlin, 10 December: 10.3 µg/m³, 0.9× usualOranienburgOranienburg, 29 November: no readingOranienburg, 30 November: no readingOranienburg, 1 December: no readingOranienburg, 2 December: 14.2 µg/m³, 1.1× usualOranienburg, 3 December: 16.8 µg/m³, 1.3× usualOranienburg, 4 December: 15.5 µg/m³, 1.2× usualOranienburg, 5 December: 29.0 µg/m³, 2.2× usualOranienburg, 6 December: 14.8 µg/m³, 1.1× usualOranienburg, 7 December: 8.8 µg/m³, 0.7× usualOranienburg, 8 December: 6.5 µg/m³, 0.5× usualOranienburg, 9 December: 6.0 µg/m³, 0.5× usualOranienburg, 10 December: 7.6 µg/m³, 0.6× usualTeltowTeltow, 29 November: no readingTeltow, 30 November: no readingTeltow, 1 December: no readingTeltow, 2 December: 16.8 µg/m³, 1.3× usualTeltow, 3 December: 18.5 µg/m³, 1.5× usualTeltow, 4 December: 18.4 µg/m³, 1.5× usualTeltow, 5 December: 28.6 µg/m³, 2.3× usualTeltow, 6 December: 14.8 µg/m³, 1.2× usualTeltow, 7 December: 10.2 µg/m³, 0.8× usualTeltow, 8 December: 8.0 µg/m³, 0.6× usualTeltow, 9 December: 9.4 µg/m³, 0.8× usualTeltow, 10 December: 11.3 µg/m³, 0.9× usualWismarWismar, 29 November: no readingWismar, 30 November: no readingWismar, 1 December: no readingWismar, 2 December: 8.8 µg/m³, 1.2× usualWismar, 3 December: 14.8 µg/m³, 1.9× usualWismar, 4 December: 16.9 µg/m³, 2.2× usualWismar, 5 December: 28.3 µg/m³, 3.7× usualWismar, 6 December: 14.5 µg/m³, 1.9× usualWismar, 7 December: 7.9 µg/m³, 1.0× usualWismar, 8 December: 5.3 µg/m³, 0.7× usualWismar, 9 December: 8.6 µg/m³, 1.1× usualWismar, 10 December: 7.4 µg/m³, 1.0× usualSchwerinSchwerin, 29 November: no readingSchwerin, 30 November: no readingSchwerin, 1 December: no readingSchwerin, 2 December: 10.3 µg/m³, 1.5× usualSchwerin, 3 December: 15.6 µg/m³, 2.2× usualSchwerin, 4 December: 17.4 µg/m³, 2.5× usualSchwerin, 5 December: 27.9 µg/m³, 4.0× usualSchwerin, 6 December: 15.1 µg/m³, 2.2× usualSchwerin, 7 December: 8.2 µg/m³, 1.2× usualSchwerin, 8 December: 5.6 µg/m³, 0.8× usualSchwerin, 9 December: 8.8 µg/m³, 1.3× usualSchwerin, 10 December: 8.2 µg/m³, 1.2× usualNeuruppinNeuruppin, 29 November: no readingNeuruppin, 30 November: no readingNeuruppin, 1 December: no readingNeuruppin, 2 December: 10.9 µg/m³, 1.6× usualNeuruppin, 3 December: 15.9 µg/m³, 2.3× usualNeuruppin, 4 December: 13.6 µg/m³, 2.0× usualNeuruppin, 5 December: 27.6 µg/m³, 4.0× usualNeuruppin, 6 December: 12.7 µg/m³, 1.8× usualNeuruppin, 7 December: 6.3 µg/m³, 0.9× usualNeuruppin, 8 December: 5.0 µg/m³, 0.7× usualNeuruppin, 9 December: 4.6 µg/m³, 0.7× usualNeuruppin, 10 December: 6.8 µg/m³, 1.0× usualStrausbergStrausberg, 29 November: no readingStrausberg, 30 November: no readingStrausberg, 1 December: no readingStrausberg, 2 December: 11.2 µg/m³, 1.5× usualStrausberg, 3 December: 15.4 µg/m³, 2.0× usualStrausberg, 4 December: 17.2 µg/m³, 2.3× usualStrausberg, 5 December: 27.6 µg/m³, 3.6× usualStrausberg, 6 December: 11.9 µg/m³, 1.6× usualStrausberg, 7 December: 6.2 µg/m³, 0.8× usualStrausberg, 8 December: 5.0 µg/m³, 0.7× usualStrausberg, 9 December: 4.3 µg/m³, 0.6× usualStrausberg, 10 December: 6.3 µg/m³, 0.8× usualSchwedt (Oder)Schwedt (Oder), 29 November: no readingSchwedt (Oder), 30 November: no readingSchwedt (Oder), 1 December: 7.1 µg/m³, 0.9× usualSchwedt (Oder), 2 December: 14.8 µg/m³, 1.8× usualSchwedt (Oder), 3 December: 18.5 µg/m³, 2.3× usualSchwedt (Oder), 4 December: 24.8 µg/m³, 3.1× usualSchwedt (Oder), 5 December: 27.6 µg/m³, 3.4× usualSchwedt (Oder), 6 December: 15.7 µg/m³, 1.9× usualSchwedt (Oder), 7 December: 8.5 µg/m³, 1.0× usualSchwedt (Oder), 8 December: 6.6 µg/m³, 0.8× usualSchwedt (Oder), 9 December: 5.2 µg/m³, 0.6× usualSchwedt (Oder), 10 December: 6.8 µg/m³, 0.8× usualKönigs WusterhausenKönigs Wusterhausen, 29 November: no readingKönigs Wusterhausen, 30 November: no readingKönigs Wusterhausen, 1 December: no readingKönigs Wusterhausen, 2 December: 12.3 µg/m³, 1.6× usualKönigs Wusterhausen, 3 December: 13.8 µg/m³, 1.7× usualKönigs Wusterhausen, 4 December: 15.5 µg/m³, 2.0× usualKönigs Wusterhausen, 5 December: 27.3 µg/m³, 3.5× usualKönigs Wusterhausen, 6 December: 11.8 µg/m³, 1.5× usualKönigs Wusterhausen, 7 December: 6.9 µg/m³, 0.9× usualKönigs Wusterhausen, 8 December: 4.9 µg/m³, 0.6× usualKönigs Wusterhausen, 9 December: 4.3 µg/m³, 0.5× usualKönigs Wusterhausen, 10 December: 6.4 µg/m³, 0.8× usualBlankenfelde-MahlowBlankenfelde-Mahlow, 29 November: no readingBlankenfelde-Mahlow, 30 November: no readingBlankenfelde-Mahlow, 1 December: no readingBlankenfelde-Mahlow, 2 December: 11.8 µg/m³, 1.4× usualBlankenfelde-Mahlow, 3 December: 13.9 µg/m³, 1.6× usualBlankenfelde-Mahlow, 4 December: 14.2 µg/m³, 1.6× usualBlankenfelde-Mahlow, 5 December: 26.6 µg/m³, 3.1× usualBlankenfelde-Mahlow, 6 December: 12.2 µg/m³, 1.4× usualBlankenfelde-Mahlow, 7 December: 6.8 µg/m³, 0.8× usualBlankenfelde-Mahlow, 8 December: 4.8 µg/m³, 0.6× usualBlankenfelde-Mahlow, 9 December: 4.8 µg/m³, 0.6× usualBlankenfelde-Mahlow, 10 December: 6.4 µg/m³, 0.7× usualBernau bei BerlinBernau bei Berlin, 29 November: no readingBernau bei Berlin, 30 November: no readingBernau bei Berlin, 1 December: no readingBernau bei Berlin, 2 December: 12.5 µg/m³, 1.3× usualBernau bei Berlin, 3 December: 15.9 µg/m³, 1.7× usualBernau bei Berlin, 4 December: 15.3 µg/m³, 1.6× usualBernau bei Berlin, 5 December: 26.5 µg/m³, 2.8× usualBernau bei Berlin, 6 December: 13.1 µg/m³, 1.4× usualBernau bei Berlin, 7 December: 8.3 µg/m³, 0.9× usualBernau bei Berlin, 8 December: 5.9 µg/m³, 0.6× usualBernau bei Berlin, 9 December: 5.6 µg/m³, 0.6× usualBernau bei Berlin, 10 December: 7.2 µg/m³, 0.8× usualNeuenhagenNeuenhagen, 29 November: no readingNeuenhagen, 30 November: no readingNeuenhagen, 1 December: no readingNeuenhagen, 2 December: 12.1 µg/m³, 1.5× usualNeuenhagen, 3 December: 15.6 µg/m³, 1.9× usualNeuenhagen, 4 December: 15.1 µg/m³, 1.9× usualNeuenhagen, 5 December: 25.0 µg/m³, 3.1× usualNeuenhagen, 6 December: 11.8 µg/m³, 1.5× usualNeuenhagen, 7 December: 7.4 µg/m³, 0.9× usualNeuenhagen, 8 December: 5.5 µg/m³, 0.7× usualNeuenhagen, 9 December: 5.9 µg/m³, 0.7× usualNeuenhagen, 10 December: 7.4 µg/m³, 0.9× usualKaliszKalisz, 29 November: no readingKalisz, 30 November: no readingKalisz, 1 December: no readingKalisz, 2 December: 31.4 µg/m³, 1.5× usualKalisz, 3 December: 37.9 µg/m³, 1.8× usualKalisz, 4 December: 41.4 µg/m³, 1.9× usualKalisz, 5 December: 38.8 µg/m³, 1.8× usualKalisz, 6 December: 52.4 µg/m³, 2.4× usualKalisz, 7 December: 36.4 µg/m³, 1.7× usualKalisz, 8 December: 25.6 µg/m³, 1.2× usualKalisz, 9 December: 19.7 µg/m³, 0.9× usualKalisz, 10 December: 22.2 µg/m³, 1.0× usualToruńToruń, 29 November: no readingToruń, 30 November: no readingToruń, 1 December: no readingToruń, 2 December: 27.3 µg/m³, 1.6× usualToruń, 3 December: 29.4 µg/m³, 1.8× usualToruń, 4 December: 30.5 µg/m³, 1.8× usualToruń, 5 December: 31.8 µg/m³, 1.9× usualToruń, 6 December: 40.5 µg/m³, 2.4× usualToruń, 7 December: 34.6 µg/m³, 2.1× usualToruń, 8 December: 28.6 µg/m³, 1.7× usualToruń, 9 December: 15.6 µg/m³, 0.9× usualToruń, 10 December: 19.9 µg/m³, 1.2× usualŚwiecieŚwiecie, 29 November: no readingŚwiecie, 30 November: no readingŚwiecie, 1 December: no readingŚwiecie, 2 December: 22.7 µg/m³, 1.4× usualŚwiecie, 3 December: 24.8 µg/m³, 1.5× usualŚwiecie, 4 December: 28.3 µg/m³, 1.7× usualŚwiecie, 5 December: 29.5 µg/m³, 1.8× usualŚwiecie, 6 December: 37.7 µg/m³, 2.3× usualŚwiecie, 7 December: 28.2 µg/m³, 1.7× usualŚwiecie, 8 December: 25.9 µg/m³, 1.6× usualŚwiecie, 9 December: 14.8 µg/m³, 0.9× usualŚwiecie, 10 December: 16.5 µg/m³, 1.0× usualElblągElbląg, 29 November: no readingElbląg, 30 November: no readingElbląg, 1 December: no readingElbląg, 2 December: 21.5 µg/m³, 1.3× usualElbląg, 3 December: 24.7 µg/m³, 1.5× usualElbląg, 4 December: 29.2 µg/m³, 1.8× usualElbląg, 5 December: 23.3 µg/m³, 1.4× usualElbląg, 6 December: 33.9 µg/m³, 2.1× usualElbląg, 7 December: 31.0 µg/m³, 1.9× usualElbląg, 8 December: 28.6 µg/m³, 1.7× usualElbląg, 9 December: 20.4 µg/m³, 1.2× usualElbląg, 10 December: 22.8 µg/m³, 1.4× usualMiskolcMiskolc, 29 November: 29.9 µg/m³, 1.2× usualMiskolc, 30 November: 33.5 µg/m³, 1.4× usualMiskolc, 1 December: 42.3 µg/m³, 1.7× usualMiskolc, 2 December: 29.6 µg/m³, 1.2× usualMiskolc, 3 December: 20.6 µg/m³, 0.8× usualMiskolc, 4 December: 24.8 µg/m³, 1.0× usualMiskolc, 5 December: 25.4 µg/m³, 1.0× usualMiskolc, 6 December: 25.3 µg/m³, 1.0× usualMiskolc, 7 December: 51.8 µg/m³, 2.1× usualMiskolc, 8 December: 35.8 µg/m³, 1.4× usualMiskolc, 9 December: 25.5 µg/m³, 1.0× usualMiskolc, 10 December: 33.6 µg/m³, 1.4× usualDębicaDębica, 29 November: no readingDębica, 30 November: no readingDębica, 1 December: no readingDębica, 2 December: 19.7 µg/m³, 1.1× usualDębica, 3 December: 22.4 µg/m³, 1.2× usualDębica, 4 December: 29.0 µg/m³, 1.6× usualDębica, 5 December: 24.1 µg/m³, 1.3× usualDębica, 6 December: 19.8 µg/m³, 1.1× usualDębica, 7 December: 46.3 µg/m³, 2.5× usualDębica, 8 December: 23.7 µg/m³, 1.3× usualDębica, 9 December: 9.6 µg/m³, 0.5× usualDębica, 10 December: 17.0 µg/m³, 0.9× usualVranov nad TopľouVranov nad Topľou, 29 November: no readingVranov nad Topľou, 30 November: no readingVranov nad Topľou, 1 December: no readingVranov nad Topľou, 2 December: 19.1 µg/m³, 1.2× usualVranov nad Topľou, 3 December: 18.1 µg/m³, 1.2× usualVranov nad Topľou, 4 December: 29.2 µg/m³, 1.9× usualVranov nad Topľou, 5 December: 24.6 µg/m³, 1.6× usualVranov nad Topľou, 6 December: 21.6 µg/m³, 1.4× usualVranov nad Topľou, 7 December: 42.6 µg/m³, 2.8× usualVranov nad Topľou, 8 December: 32.6 µg/m³, 2.1× usualVranov nad Topľou, 9 December: 16.2 µg/m³, 1.1× usualVranov nad Topľou, 10 December: 27.7 µg/m³, 1.8× usualRzeszówRzeszów, 29 November: no readingRzeszów, 30 November: no readingRzeszów, 1 December: no readingRzeszów, 2 December: 12.6 µg/m³, 0.8× usualRzeszów, 3 December: 14.5 µg/m³, 0.9× usualRzeszów, 4 December: 23.3 µg/m³, 1.5× usualRzeszów, 5 December: 22.5 µg/m³, 1.5× usualRzeszów, 6 December: 16.7 µg/m³, 1.1× usualRzeszów, 7 December: 37.0 µg/m³, 2.4× usualRzeszów, 8 December: 22.5 µg/m³, 1.5× usualRzeszów, 9 December: 10.2 µg/m³, 0.7× usualRzeszów, 10 December: 17.3 µg/m³, 1.1× usualNyíregyházaNyíregyháza, 29 November: 14.5 µg/m³, 0.9× usualNyíregyháza, 30 November: 26.6 µg/m³, 1.6× usualNyíregyháza, 1 December: 29.5 µg/m³, 1.8× usualNyíregyháza, 2 December: 28.0 µg/m³, 1.7× usualNyíregyháza, 3 December: 13.3 µg/m³, 0.8× usualNyíregyháza, 4 December: 20.9 µg/m³, 1.3× usualNyíregyháza, 5 December: no readingNyíregyháza, 6 December: 16.3 µg/m³, 1.0× usualNyíregyháza, 7 December: 34.4 µg/m³, 2.1× usualNyíregyháza, 8 December: 41.9 µg/m³, 2.6× usualNyíregyháza, 9 December: 17.3 µg/m³, 1.1× usualNyíregyháza, 10 December: 24.3 µg/m³, 1.5× usualTrebišovTrebišov, 29 November: no readingTrebišov, 30 November: no readingTrebišov, 1 December: no readingTrebišov, 2 December: no readingTrebišov, 3 December: 16.6 µg/m³, 1.1× usualTrebišov, 4 December: no readingTrebišov, 5 December: 24.8 µg/m³, 1.6× usualTrebišov, 6 December: 19.0 µg/m³, 1.2× usualTrebišov, 7 December: 33.9 µg/m³, 2.1× usualTrebišov, 8 December: 34.7 µg/m³, 2.2× usualTrebišov, 9 December: no readingTrebišov, 10 December: no readingJasłoJasło, 29 November: no readingJasło, 30 November: no readingJasło, 1 December: no readingJasło, 2 December: 12.2 µg/m³, 0.9× usualJasło, 3 December: 10.6 µg/m³, 0.8× usualJasło, 4 December: 14.9 µg/m³, 1.1× usualJasło, 5 December: no readingJasło, 6 December: no readingJasło, 7 December: 28.9 µg/m³, 2.2× usualJasło, 8 December: 23.0 µg/m³, 1.7× usualJasło, 9 December: 6.9 µg/m³, 0.5× usualJasło, 10 December: 16.6 µg/m³, 1.3× usual29 Nov1 Dec3579
Every counted city, in the order the episode reached them, 3 days before to 3 after. Each square is a day, coloured by that day's PM2.5; outlined: at twice the city's usual or more.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

Every city it reached

CityDaysHighestUsualAbove usual
ŻywiecSilesia, Poland5 158.05 December26.95.9×
StralsundMecklenburg-Vorpommern, Germany1 31.55 December6.35.0×
GüstrowMecklenburg-Vorpommern, Germany1 30.65 December6.54.7×
NeubrandenburgMecklenburg-Vorpommern, Germany1 35.55 December7.74.6×
Jelenia GóraLower Silesia, Poland4 58.24 December12.74.6×
ŻaryLubusz, Poland4 46.14 December10.34.5×
HavířovMoravian-Silesian Region, Czechia1 56.64 December13.24.3×
RostockMecklenburg-Vorpommern, Germany1 31.95 December7.54.3×
NeuruppinBrandenburg, Germany1 27.65 December6.94.0×
SchwerinMecklenburg-Vorpommern, Germany1 27.95 December7.04.0×
EisenhüttenstadtBrandenburg, Germany2 32.85 December8.53.9×
WismarMecklenburg-Vorpommern, Germany1 28.35 December7.63.7×
StrausbergBrandenburg, Germany1 27.65 December7.63.6×
Zielona GóraLubusz, Poland2 36.84 December10.53.5×
Königs WusterhausenBrandenburg, Germany1 27.35 December7.93.5×
RacibórzSilesia, Poland4 59.94 December17.43.4×
StodůlkyPrague, Czechia2 151.829 November44.13.4×
Schwedt (Oder)Brandenburg, Germany1 27.65 December8.13.4×
Frankfurt (Oder)Brandenburg, Germany1 29.65 December8.73.4×
GdańskPomerania, Poland3 35.86 December10.93.3×
Czechowice-DziedziceSilesia, Poland2 64.26 December19.83.2×
GdyniaPomerania, Poland3 36.26 December11.73.1×
NeuenhagenBrandenburg, Germany1 25.05 December8.13.1×
Bielsko-BialaSilesia, Poland1 58.44 December19.13.1×
Blankenfelde-MahlowBrandenburg, Germany1 26.65 December8.73.1×
Gorzów WielkopolskiLubusz, Poland5 48.94 December16.03.1×
TarnówLesser Poland, Poland2 44.74 December14.83.0×
OpoleOpole Voivodeship, Poland4 50.24 December17.32.9×
Bernau bei BerlinBrandenburg, Germany1 26.55 December9.32.8×
Vranov nad TopľouPrešov Region, Slovakia1 42.67 December15.32.8×
PoznańGreater Poland, Poland4 51.14 December18.72.7×
KłodzkoLower Silesia, Poland1 45.45 December16.82.7×
Jastrzębie ZdrójSilesia, Poland3 59.46 December22.12.7×
BydgoszczKujawsko-Pomorskie, Poland4 38.36 December14.62.6×
Kędzierzyn-KoźleOpole Voivodeship, Poland2 42.74 December16.32.6×
SulechówLubusz, Poland2 51.04 December19.72.6×
BerlinState of Berlin, Germany1 29.55 December11.42.6×
KołobrzegWest Pomerania, Poland2 28.14 December10.92.6×
BrzegOpole Voivodeship, Poland4 44.14 December17.22.6×
NyíregyházaSzabolcs-Szatmár-Bereg, Hungary1 41.98 December16.42.6×
WrocławLower Silesia, Poland3 42.84 December16.82.5×
DębicaSubcarpathia, Poland1 46.37 December18.22.5×
KaliszGreater Poland, Poland1 52.46 December21.42.4×
ToruńKujawsko-Pomorskie, Poland1 40.56 December16.72.4×
RzeszówSubcarpathia, Poland1 37.07 December15.42.4×
ČadcaŽilina Region, Slovakia1 37.63 December15.82.4×
ŚwiecieKujawsko-Pomorskie, Poland1 37.76 December16.22.3×
GyőrGyőr-Moson-Sopron, Hungary1 33.84 December14.62.3×
TeltowBrandenburg, Germany1 28.65 December12.52.3×
SzczecinWest Pomerania, Poland2 27.75 December12.62.2×
OranienburgBrandenburg, Germany1 29.05 December13.22.2×
TrebišovKošice Region, Slovakia1 34.78 December15.82.2×
JasłoSubcarpathia, Poland1 28.97 December13.22.2×
MiskolcBorsod-Abaúj-Zemplén, Hungary1 51.87 December24.72.1×
ElblągWarmia-Masuria, Poland1 33.96 December16.42.1×

Daily means in µg/m³. Usual: the city's median for this time of year (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that.

Against other episodes in Poland and Germany

Number 20 of 42 episodes in Poland and Germany since our records began, by cities reached.

Bars: cities reached; colour: the level of the episode's highest daily reading. All 42.

Use this page

SmogRank, North-eastern Europe, December 2025: 55 cities with PM2.5 at twice their usual or more, 2 to 7 December 2025, smogrank.com/episodes/2025-12-north-eastern-europe (accessed 2 October 2026).

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.

An episode is a run of days when many cities close to each other (four or more within 350 km on a day, 8 or more in all) each had a daily PM2.5 mean of at least 25 µg/m³ and at least 2 times their usual for that time of year. Found in our own measurements, not picked by hand. How we find episodes. Values are each city's daily mean of its own monitors; causes are the usual kinds for a pattern like this, not a confirmed source.