SmogRank / Episodes / Germany

Europe, April 2023

For 2 days, from 9 to 10 April 2023, 67 cities in Germany, Poland, Belgium and 5 more countries had PM2.5 at least twice their usual for the time of year. The worst reading was Jastrzębie Zdrój, Silesia, Poland: 58.1 µg/m³ on 10 April, about 3.2× its usual 18.0.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached67in 8 countries
Days29 to 10 April 2023
Worst day9 April53 cities counted
Furthest above usual6.6×Bremerhaven

Day by day

9 April 53 cities at twice their usual or more
NordhausenHalberstadtErfurtWeimarMühlhausenGoslarMagdeburgJenaSalzgitterKöthenEisenachSaalfeldWeißenfelsBurg bei MagdeburgMeiningenCoburgGreizAltenburgHannoverWittenbergeBambergFuldaBrandenburg an der HavelMarktredwitzRintelnWürzburgNauenSokolovNurembergWeidenMarsbergNeuruppinFalkenseeAnsbachLübeckKleinmachnowWismarMarburg an der LahnLauda-KönigshofenAschaffenburgSchwandorf in BayernGüstrowKadaňGießenGroßostheimWarsteinRostockLitvínovBernau bei BerlinFrankfurt am MainKelheimMostNeuenhagenDelmenhorstEschbornAalenLubnjowDarmstadtSoestPilsenStrausbergNetphenEberswaldeHeilbronnRüsselsheim am MainBensheimÚstí nad LabemWiesbadenMainzHeidelbergLimburg an der LahnLampertheimLudwigsburgWieslochWormsMannheimLudwigshafen am RheinKladnoStralsundBerounLüdenscheidSpeyerSchwerteSchwedt (Oder)PforzheimDortmundEggenstein-LeopoldshafenBendorfKoblenzPragueKarlsruheDattelnHattingenWuppertalGelsenkirchenŚwinoujścieSzczecinSolingenMladá BoleslavEssenBonnŻaryLeverkusenKölnOberhausenBorkenRatingenDüsseldorfDuisburgČeské BudějoviceGorzów WielkopolskiBergheimZielona GóraKrefeldJüchenMiędzyrzeczMönchengladbachSaarbrückenJelenia GóraJülichTrierGroningenForbachHradec KrálovéAachenVenrayEupenHeerlenNijmegenLuxembourgThionvilleMetzEsch-sur-AlzetteBarneveldLiègeEindhovenZnojmoFlémalle-HautePoznańMolUtrechtTilburgIJsselsteinMaarssenBrnoAndenneMedemblikŽideniceVerdunPurmerendAmsterdamAarschotBredaZaanstadBadhoevedorpRidderkerkHillegomOlomoucRotterdamKapellenAntwerpStabroekCharleroiWillebroekZwijndrechtBrusselsZlínBydgoszczKędzierzyn-KoźleKościerzynaReimsTrenčínÉpernayŚwiecieValenciennesToruńTournaiSaint-QuentinKatowiceWłocławekMartinKutnoZgierzŁódźKoksijdeBéthuneRužomberokPłockAmiensParisBeauvaisŻyrardówPopradOlsztynPruszkówNorwichSpišská Nová VesClacton-on-SeaCanterburyWarsawStarachowiceKonstancin-JeziornaPułtuskRadomDieppeWawerRouenÉvreuxOtwockMielecCanvey IslandPrešovKętrzynNewmarketGraysKrosnoDagenhamBexleyVranov nad TopľouLisieuxLe HavreNiskoLondonHumennéBrightonSiedlceŁukówSninaHayesLublinEłkKingston upon HullGrajewoCaenJarosławPrzemyślReadingAugustówSuwałkiPortsmouthBiałystokZamośćNottinghamOxfordYorkSouthamptonAndoverChesterfieldRoyal Leamington SpaSheffieldLeedsKościanŽilinaWrocławKłodzkoŁaskRzeszówOpoleDěčínBielsko-BialaBerlinJasłoTeltowRoubaixBohumínWodzisław ŚląskiKrapkowiceValašské MeziříčíKrakówVelsen-ZuidLochristiOstravaRacibórzHalle (Saale)IzegemTarnówLilleLiberecBeverenWittenbergGentMenenHavířovCzechowice-DziedziceJastrzębie ZdrójFrankfurt (Oder)MaldegemPotsdamKasselCalaisCieszynČeský TěšínThe HagueEisenhüttenstadtFrýdek-MístekEvergemBielefeldFriesoytheOldenburgKortrijkRoeselareSeafordGöttingenMaassluisMünsterHamburgOsnabrückBraunschweigBremen's-GravenzandeOytenBlankenfelde-MahlowEnschedeMonsCottbusItzehoeWilhelmshavenBremerhaven
6 Apr78910111213
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

Český TěšínČeský Těšín, 6 April: 32.8 µg/m³Český Těšín, 7 April: 20.6 µg/m³Český Těšín, 8 April: 24.0 µg/m³Český Těšín, 9 April: 34.8 µg/m³, 2.6× its usual 13.5Český Těšín, 10 April: 44.0 µg/m³, 3.4× its usual 13.1Český Těšín, 11 April: 22.5 µg/m³Český Těšín, 12 April: 7.3 µg/m³Český Těšín, 13 April: 16.2 µg/m³CieszynCieszyn, 6 April: 32.8 µg/m³Cieszyn, 7 April: 20.6 µg/m³Cieszyn, 8 April: 24.0 µg/m³Cieszyn, 9 April: 34.8 µg/m³, 2.6× its usual 13.3Cieszyn, 10 April: 44.0 µg/m³, 3.4× its usual 13.0Cieszyn, 11 April: 22.5 µg/m³Cieszyn, 12 April: 7.3 µg/m³Cieszyn, 13 April: 16.2 µg/m³HavířovHavířov, 6 April: 36.6 µg/m³Havířov, 7 April: 24.8 µg/m³Havířov, 8 April: 22.2 µg/m³Havířov, 9 April: 33.8 µg/m³, 2.5× its usual 13.5Havířov, 10 April: 43.5 µg/m³, 3.2× its usual 13.5Havířov, 11 April: 22.8 µg/m³Havířov, 12 April: 9.3 µg/m³Havířov, 13 April: 17.4 µg/m³Frýdek-MístekFrýdek-Místek, 6 April: 39.9 µg/m³Frýdek-Místek, 7 April: 25.8 µg/m³Frýdek-Místek, 8 April: 23.4 µg/m³Frýdek-Místek, 9 April: 30.8 µg/m³, 2.6× its usual 11.8Frýdek-Místek, 10 April: 43.0 µg/m³, 3.6× its usual 11.8Frýdek-Místek, 11 April: 19.5 µg/m³Frýdek-Místek, 12 April: 10.3 µg/m³Frýdek-Místek, 13 April: 12.3 µg/m³BremerhavenBremerhaven, 6 April: 14.9 µg/m³Bremerhaven, 7 April: 13.0 µg/m³Bremerhaven, 8 April: 23.2 µg/m³Bremerhaven, 9 April: 41.6 µg/m³, 6.6× its usual 6.3Bremerhaven, 10 April: 18.0 µg/m³Bremerhaven, 11 April: 4.0 µg/m³Bremerhaven, 12 April: 4.5 µg/m³Bremerhaven, 13 April: 6.2 µg/m³CottbusCottbus, 6 April: 11.4 µg/m³Cottbus, 7 April: 20.6 µg/m³Cottbus, 8 April: 21.1 µg/m³Cottbus, 9 April: 41.2 µg/m³, 5.2× its usual 8.0Cottbus, 10 April: 18.5 µg/m³Cottbus, 11 April: 7.5 µg/m³Cottbus, 12 April: 5.1 µg/m³Cottbus, 13 April: 4.2 µg/m³WilhelmshavenWilhelmshaven, 6 April: 16.1 µg/m³Wilhelmshaven, 7 April: 13.1 µg/m³Wilhelmshaven, 8 April: 17.4 µg/m³Wilhelmshaven, 9 April: 39.8 µg/m³, 6.2× its usual 6.4Wilhelmshaven, 10 April: 18.1 µg/m³Wilhelmshaven, 11 April: 4.1 µg/m³Wilhelmshaven, 12 April: 4.3 µg/m³Wilhelmshaven, 13 April: 4.3 µg/m³ŁaskŁask, 6 April: no readingŁask, 7 April: 13.8 µg/m³Łask, 8 April: 21.5 µg/m³Łask, 9 April: 36.5 µg/m³, 2.1× its usual 17.7Łask, 10 April: 31.9 µg/m³Łask, 11 April: 18.0 µg/m³Łask, 12 April: 18.2 µg/m³Łask, 13 April: no readingHamburgHamburg, 6 April: 13.8 µg/m³Hamburg, 7 April: 12.0 µg/m³Hamburg, 8 April: 23.6 µg/m³Hamburg, 9 April: 36.1 µg/m³, 4.0× its usual 9.1Hamburg, 10 April: 16.8 µg/m³Hamburg, 11 April: 4.3 µg/m³Hamburg, 12 April: 5.8 µg/m³Hamburg, 13 April: 5.9 µg/m³RoeselareRoeselare, 6 April: 15.7 µg/m³Roeselare, 7 April: 7.8 µg/m³Roeselare, 8 April: 14.9 µg/m³Roeselare, 9 April: 34.8 µg/m³, 3.8× its usual 9.2Roeselare, 10 April: 11.6 µg/m³Roeselare, 11 April: 6.9 µg/m³Roeselare, 12 April: 3.8 µg/m³Roeselare, 13 April: 4.8 µg/m³Wodzisław ŚląskiWodzisław Śląski, 6 April: 40.5 µg/m³Wodzisław Śląski, 7 April: 24.1 µg/m³Wodzisław Śląski, 8 April: 18.6 µg/m³Wodzisław Śląski, 9 April: 34.7 µg/m³, 2.7× its usual 12.7Wodzisław Śląski, 10 April: 34.8 µg/m³, 2.7× its usual 13.1Wodzisław Śląski, 11 April: 19.5 µg/m³Wodzisław Śląski, 12 April: 6.4 µg/m³Wodzisław Śląski, 13 April: 23.3 µg/m³BohumínBohumín, 6 April: 40.5 µg/m³Bohumín, 7 April: 24.1 µg/m³Bohumín, 8 April: 18.6 µg/m³Bohumín, 9 April: 34.7 µg/m³, 2.6× its usual 13.6Bohumín, 10 April: 34.8 µg/m³, 2.6× its usual 13.6Bohumín, 11 April: 19.5 µg/m³Bohumín, 12 April: 6.4 µg/m³Bohumín, 13 April: 23.3 µg/m³ItzehoeItzehoe, 6 April: 14.1 µg/m³Itzehoe, 7 April: 12.6 µg/m³Itzehoe, 8 April: 21.9 µg/m³Itzehoe, 9 April: 33.9 µg/m³, 5.4× its usual 6.3Itzehoe, 10 April: 16.8 µg/m³Itzehoe, 11 April: 4.0 µg/m³Itzehoe, 12 April: 5.7 µg/m³Itzehoe, 13 April: 5.2 µg/m³MonsMons, 6 April: 16.8 µg/m³Mons, 7 April: 7.5 µg/m³Mons, 8 April: 13.6 µg/m³Mons, 9 April: 33.7 µg/m³, 4.8× its usual 7.0Mons, 10 April: 6.2 µg/m³Mons, 11 April: 5.7 µg/m³Mons, 12 April: 0.8 µg/m³Mons, 13 April: 3.1 µg/m³OstravaOstrava, 6 April: 35.4 µg/m³Ostrava, 7 April: 20.2 µg/m³Ostrava, 8 April: 21.5 µg/m³Ostrava, 9 April: 30.6 µg/m³, 2.6× its usual 11.6Ostrava, 10 April: 33.4 µg/m³, 2.9× its usual 11.6Ostrava, 11 April: 25.5 µg/m³Ostrava, 12 April: 9.4 µg/m³Ostrava, 13 April: 14.5 µg/m³CalaisCalais, 6 April: 7.9 µg/m³Calais, 7 April: 5.1 µg/m³Calais, 8 April: 9.2 µg/m³Calais, 9 April: 33.1 µg/m³, 3.4× its usual 9.8Calais, 10 April: 8.8 µg/m³Calais, 11 April: 6.6 µg/m³Calais, 12 April: 5.4 µg/m³Calais, 13 April: 4.6 µg/m³EvergemEvergem, 6 April: 18.4 µg/m³Evergem, 7 April: 6.6 µg/m³Evergem, 8 April: 17.9 µg/m³Evergem, 9 April: 33.0 µg/m³, 3.7× its usual 9.0Evergem, 10 April: 11.8 µg/m³Evergem, 11 April: 7.6 µg/m³Evergem, 12 April: 4.3 µg/m³Evergem, 13 April: 5.0 µg/m³KortrijkKortrijk, 6 April: 15.9 µg/m³Kortrijk, 7 April: 9.0 µg/m³Kortrijk, 8 April: 15.0 µg/m³Kortrijk, 9 April: 32.6 µg/m³, 3.8× its usual 8.5Kortrijk, 10 April: 10.2 µg/m³Kortrijk, 11 April: 7.5 µg/m³Kortrijk, 12 April: 3.5 µg/m³Kortrijk, 13 April: 5.0 µg/m³'s-Gravenzande's-Gravenzande, 6 April: no reading's-Gravenzande, 7 April: 4.9 µg/m³'s-Gravenzande, 8 April: 18.5 µg/m³'s-Gravenzande, 9 April: 32.2 µg/m³, 4.2× its usual 7.7's-Gravenzande, 10 April: 10.4 µg/m³'s-Gravenzande, 11 April: 5.5 µg/m³'s-Gravenzande, 12 April: 4.4 µg/m³'s-Gravenzande, 13 April: no readingMünsterMünster, 6 April: 17.1 µg/m³Münster, 7 April: 6.3 µg/m³Münster, 8 April: 14.3 µg/m³Münster, 9 April: 32.0 µg/m³, 4.0× its usual 8.0Münster, 10 April: 38.3 µg/m³Münster, 11 April: 4.8 µg/m³Münster, 12 April: 3.9 µg/m³Münster, 13 April: 5.3 µg/m³OldenburgOldenburg, 6 April: 19.5 µg/m³Oldenburg, 7 April: 17.7 µg/m³Oldenburg, 8 April: 21.1 µg/m³Oldenburg, 9 April: 32.0 µg/m³, 3.8× its usual 8.4Oldenburg, 10 April: 19.6 µg/m³Oldenburg, 11 April: 4.4 µg/m³Oldenburg, 12 April: 5.1 µg/m³Oldenburg, 13 April: 5.6 µg/m³Blankenfelde-MahlowBlankenfelde-Mahlow, 6 April: 12.5 µg/m³Blankenfelde-Mahlow, 7 April: 15.0 µg/m³Blankenfelde-Mahlow, 8 April: 20.7 µg/m³Blankenfelde-Mahlow, 9 April: 31.5 µg/m³, 4.3× its usual 7.4Blankenfelde-Mahlow, 10 April: 24.6 µg/m³Blankenfelde-Mahlow, 11 April: 6.4 µg/m³Blankenfelde-Mahlow, 12 April: 4.3 µg/m³Blankenfelde-Mahlow, 13 April: 7.5 µg/m³Valašské MeziříčíValašské Meziříčí, 6 April: 32.9 µg/m³Valašské Meziříčí, 7 April: 19.2 µg/m³Valašské Meziříčí, 8 April: 23.9 µg/m³Valašské Meziříčí, 9 April: 31.4 µg/m³, 2.8× its usual 11.1Valašské Meziříčí, 10 April: 30.9 µg/m³, 2.8× its usual 11.1Valašské Meziříčí, 11 April: 17.6 µg/m³Valašské Meziříčí, 12 April: 8.0 µg/m³Valašské Meziříčí, 13 April: 12.7 µg/m³BraunschweigBraunschweig, 6 April: 13.6 µg/m³Braunschweig, 7 April: 14.8 µg/m³Braunschweig, 8 April: 16.5 µg/m³Braunschweig, 9 April: 30.4 µg/m³, 4.1× its usual 7.4Braunschweig, 10 April: 16.8 µg/m³Braunschweig, 11 April: 3.8 µg/m³Braunschweig, 12 April: 3.5 µg/m³Braunschweig, 13 April: 3.6 µg/m³BremenBremen, 6 April: 19.8 µg/m³Bremen, 7 April: 19.1 µg/m³Bremen, 8 April: 17.5 µg/m³Bremen, 9 April: 30.3 µg/m³, 4.2× its usual 7.2Bremen, 10 April: 21.8 µg/m³Bremen, 11 April: 5.2 µg/m³Bremen, 12 April: 9.3 µg/m³Bremen, 13 April: 8.9 µg/m³OsnabrückOsnabrück, 6 April: 15.3 µg/m³Osnabrück, 7 April: 12.1 µg/m³Osnabrück, 8 April: 15.2 µg/m³Osnabrück, 9 April: 30.3 µg/m³, 4.1× its usual 7.4Osnabrück, 10 April: 22.6 µg/m³Osnabrück, 11 April: 4.0 µg/m³Osnabrück, 12 April: 4.1 µg/m³Osnabrück, 13 April: 4.3 µg/m³FriesoytheFriesoythe, 6 April: 16.6 µg/m³Friesoythe, 7 April: 15.5 µg/m³Friesoythe, 8 April: 20.0 µg/m³Friesoythe, 9 April: 30.3 µg/m³, 3.8× its usual 8.0Friesoythe, 10 April: 18.7 µg/m³Friesoythe, 11 April: 4.0 µg/m³Friesoythe, 12 April: 4.1 µg/m³Friesoythe, 13 April: 4.2 µg/m³DěčínDěčín, 6 April: 24.9 µg/m³Děčín, 7 April: 30.7 µg/m³Děčín, 8 April: 16.5 µg/m³Děčín, 9 April: 29.8 µg/m³, 2.4× its usual 12.6Děčín, 10 April: 20.7 µg/m³Děčín, 11 April: 14.1 µg/m³Děčín, 12 April: 7.6 µg/m³Děčín, 13 April: 11.7 µg/m³RoubaixRoubaix, 6 April: 16.2 µg/m³Roubaix, 7 April: 8.0 µg/m³Roubaix, 8 April: 15.0 µg/m³Roubaix, 9 April: 29.6 µg/m³, 2.6× its usual 11.3Roubaix, 10 April: 10.3 µg/m³Roubaix, 11 April: 7.9 µg/m³Roubaix, 12 April: 5.0 µg/m³Roubaix, 13 April: 7.5 µg/m³IzegemIzegem, 6 April: 20.4 µg/m³Izegem, 7 April: 8.2 µg/m³Izegem, 8 April: 15.6 µg/m³Izegem, 9 April: 29.4 µg/m³, 3.0× its usual 9.9Izegem, 10 April: 14.4 µg/m³Izegem, 11 April: 10.2 µg/m³Izegem, 12 April: 6.5 µg/m³Izegem, 13 April: 6.9 µg/m³BielefeldBielefeld, 6 April: 15.0 µg/m³Bielefeld, 7 April: 11.3 µg/m³Bielefeld, 8 April: 15.0 µg/m³Bielefeld, 9 April: 29.2 µg/m³, 3.8× its usual 7.6Bielefeld, 10 April: 19.6 µg/m³Bielefeld, 11 April: 4.1 µg/m³Bielefeld, 12 April: 4.0 µg/m³Bielefeld, 13 April: 5.1 µg/m³MenenMenen, 6 April: 16.5 µg/m³Menen, 7 April: 7.3 µg/m³Menen, 8 April: 14.6 µg/m³Menen, 9 April: 28.5 µg/m³, 3.2× its usual 8.9Menen, 10 April: 9.7 µg/m³Menen, 11 April: 8.0 µg/m³Menen, 12 April: 4.3 µg/m³Menen, 13 April: 5.3 µg/m³KasselKassel, 6 April: 18.1 µg/m³Kassel, 7 April: 12.1 µg/m³Kassel, 8 April: 18.5 µg/m³Kassel, 9 April: 28.4 µg/m³, 3.4× its usual 8.3Kassel, 10 April: 12.6 µg/m³Kassel, 11 April: 5.1 µg/m³Kassel, 12 April: 4.9 µg/m³Kassel, 13 April: 3.8 µg/m³MaassluisMaassluis, 6 April: no readingMaassluis, 7 April: 5.2 µg/m³Maassluis, 8 April: 19.1 µg/m³Maassluis, 9 April: 27.4 µg/m³, 4.0× its usual 6.9Maassluis, 10 April: 8.9 µg/m³Maassluis, 11 April: 4.7 µg/m³Maassluis, 12 April: 3.5 µg/m³Maassluis, 13 April: no readingMaldegemMaldegem, 6 April: 17.2 µg/m³Maldegem, 7 April: 5.2 µg/m³Maldegem, 8 April: 13.8 µg/m³Maldegem, 9 April: 27.4 µg/m³, 3.3× its usual 8.4Maldegem, 10 April: 12.1 µg/m³Maldegem, 11 April: 6.4 µg/m³Maldegem, 12 April: 4.3 µg/m³Maldegem, 13 April: 4.9 µg/m³EnschedeEnschede, 6 April: no readingEnschede, 7 April: 5.0 µg/m³Enschede, 8 April: 10.9 µg/m³Enschede, 9 April: 27.3 µg/m³, 4.6× its usual 5.9Enschede, 10 April: 27.0 µg/m³Enschede, 11 April: 2.2 µg/m³Enschede, 12 April: 2.8 µg/m³Enschede, 13 April: no readingLilleLille, 6 April: 14.0 µg/m³Lille, 7 April: 6.7 µg/m³Lille, 8 April: 11.8 µg/m³Lille, 9 April: 27.3 µg/m³, 3.1× its usual 8.7Lille, 10 April: 8.6 µg/m³Lille, 11 April: 4.4 µg/m³Lille, 12 April: 2.1 µg/m³Lille, 13 April: 4.3 µg/m³EisenhüttenstadtEisenhüttenstadt, 6 April: 12.0 µg/m³Eisenhüttenstadt, 7 April: 16.8 µg/m³Eisenhüttenstadt, 8 April: 19.6 µg/m³Eisenhüttenstadt, 9 April: 26.9 µg/m³, 3.6× its usual 7.5Eisenhüttenstadt, 10 April: 21.0 µg/m³Eisenhüttenstadt, 11 April: 8.5 µg/m³Eisenhüttenstadt, 12 April: 3.9 µg/m³Eisenhüttenstadt, 13 April: 4.6 µg/m³GöttingenGöttingen, 6 April: 13.6 µg/m³Göttingen, 7 April: 16.8 µg/m³Göttingen, 8 April: 14.5 µg/m³Göttingen, 9 April: 26.7 µg/m³, 4.0× its usual 6.6Göttingen, 10 April: 14.8 µg/m³Göttingen, 11 April: 3.9 µg/m³Göttingen, 12 April: 3.5 µg/m³Göttingen, 13 April: 2.5 µg/m³GentGent, 6 April: 14.3 µg/m³Gent, 7 April: 6.1 µg/m³Gent, 8 April: 15.6 µg/m³Gent, 9 April: 26.7 µg/m³, 3.2× its usual 8.3Gent, 10 April: 9.6 µg/m³Gent, 11 April: 6.5 µg/m³Gent, 12 April: 3.6 µg/m³Gent, 13 April: 4.6 µg/m³WittenbergWittenberg, 6 April: 15.0 µg/m³Wittenberg, 7 April: 13.7 µg/m³Wittenberg, 8 April: 16.1 µg/m³Wittenberg, 9 April: 26.7 µg/m³, 3.2× its usual 8.3Wittenberg, 10 April: 20.2 µg/m³Wittenberg, 11 April: 6.1 µg/m³Wittenberg, 12 April: 6.0 µg/m³Wittenberg, 13 April: 5.3 µg/m³The HagueThe Hague, 6 April: no readingThe Hague, 7 April: 4.3 µg/m³The Hague, 8 April: 17.9 µg/m³The Hague, 9 April: 26.5 µg/m³, 3.6× its usual 7.4The Hague, 10 April: 7.7 µg/m³The Hague, 11 April: 3.0 µg/m³The Hague, 12 April: 2.6 µg/m³The Hague, 13 April: no readingSeafordSeaford, 6 April: no readingSeaford, 7 April: 3.7 µg/m³Seaford, 8 April: 4.8 µg/m³Seaford, 9 April: 26.4 µg/m³, 3.9× its usual 6.8Seaford, 10 April: 12.3 µg/m³Seaford, 11 April: 8.7 µg/m³Seaford, 12 April: 7.2 µg/m³Seaford, 13 April: no readingFrankfurt (Oder)Frankfurt (Oder), 6 April: 17.9 µg/m³Frankfurt (Oder), 7 April: 19.3 µg/m³Frankfurt (Oder), 8 April: 21.2 µg/m³Frankfurt (Oder), 9 April: 26.4 µg/m³, 3.3× its usual 8.0Frankfurt (Oder), 10 April: 22.6 µg/m³Frankfurt (Oder), 11 April: 10.4 µg/m³Frankfurt (Oder), 12 April: 5.4 µg/m³Frankfurt (Oder), 13 April: 6.0 µg/m³BeverenBeveren, 6 April: 17.4 µg/m³Beveren, 7 April: 7.3 µg/m³Beveren, 8 April: 19.2 µg/m³Beveren, 9 April: 26.3 µg/m³, 3.2× its usual 8.2Beveren, 10 April: 10.4 µg/m³Beveren, 11 April: 10.0 µg/m³Beveren, 12 April: 5.7 µg/m³Beveren, 13 April: 5.8 µg/m³TeltowTeltow, 6 April: 12.8 µg/m³Teltow, 7 April: 13.3 µg/m³Teltow, 8 April: 20.6 µg/m³Teltow, 9 April: 26.1 µg/m³, 2.6× its usual 10.2Teltow, 10 April: 24.1 µg/m³Teltow, 11 April: 9.0 µg/m³Teltow, 12 April: 7.6 µg/m³Teltow, 13 April: 8.8 µg/m³LochristiLochristi, 6 April: 19.9 µg/m³Lochristi, 7 April: 6.4 µg/m³Lochristi, 8 April: 16.7 µg/m³Lochristi, 9 April: 26.0 µg/m³, 2.9× its usual 8.9Lochristi, 10 April: 10.1 µg/m³Lochristi, 11 April: 7.0 µg/m³Lochristi, 12 April: 6.4 µg/m³Lochristi, 13 April: 4.7 µg/m³Jastrzębie ZdrójJastrzębie Zdrój, 6 April: no readingJastrzębie Zdrój, 7 April: 39.5 µg/m³Jastrzębie Zdrój, 8 April: no readingJastrzębie Zdrój, 9 April: no readingJastrzębie Zdrój, 10 April: 58.1 µg/m³, 3.2× its usual 18.0Jastrzębie Zdrój, 11 April: 31.3 µg/m³Jastrzębie Zdrój, 12 April: 16.9 µg/m³Jastrzębie Zdrój, 13 April: no readingCzechowice-DziedziceCzechowice-Dziedzice, 6 April: no readingCzechowice-Dziedzice, 7 April: 26.0 µg/m³Czechowice-Dziedzice, 8 April: no readingCzechowice-Dziedzice, 9 April: no readingCzechowice-Dziedzice, 10 April: 46.8 µg/m³, 3.2× its usual 14.5Czechowice-Dziedzice, 11 April: 23.8 µg/m³Czechowice-Dziedzice, 12 April: 10.0 µg/m³Czechowice-Dziedzice, 13 April: no readingKrakówKraków, 6 April: no readingKraków, 7 April: 27.0 µg/m³Kraków, 8 April: no readingKraków, 9 April: no readingKraków, 10 April: 40.8 µg/m³, 2.8× its usual 14.6Kraków, 11 April: 13.0 µg/m³Kraków, 12 April: 15.0 µg/m³Kraków, 13 April: no readingRacibórzRacibórz, 6 April: no readingRacibórz, 7 April: 27.0 µg/m³Racibórz, 8 April: no readingRacibórz, 9 April: no readingRacibórz, 10 April: 40.6 µg/m³, 2.9× its usual 14.0Racibórz, 11 April: 33.4 µg/m³Racibórz, 12 April: 16.5 µg/m³Racibórz, 13 April: no readingBielsko-BialaBielsko-Biala, 6 April: no readingBielsko-Biala, 7 April: 31.8 µg/m³Bielsko-Biala, 8 April: no readingBielsko-Biala, 9 April: no readingBielsko-Biala, 10 April: 39.6 µg/m³, 2.4× its usual 16.6Bielsko-Biala, 11 April: 13.9 µg/m³Bielsko-Biala, 12 April: 13.3 µg/m³Bielsko-Biala, 13 April: no readingTarnówTarnów, 6 April: no readingTarnów, 7 April: 27.5 µg/m³Tarnów, 8 April: no readingTarnów, 9 April: no readingTarnów, 10 April: 34.9 µg/m³, 3.0× its usual 11.8Tarnów, 11 April: 16.4 µg/m³Tarnów, 12 April: 18.9 µg/m³Tarnów, 13 April: no readingKłodzkoKłodzko, 6 April: no readingKłodzko, 7 April: 30.8 µg/m³Kłodzko, 8 April: no readingKłodzko, 9 April: no readingKłodzko, 10 April: 28.8 µg/m³, 2.1× its usual 13.6Kłodzko, 11 April: 21.6 µg/m³Kłodzko, 12 April: 13.3 µg/m³Kłodzko, 13 April: no readingWrocławWrocław, 6 April: no readingWrocław, 7 April: 15.7 µg/m³Wrocław, 8 April: no readingWrocław, 9 April: no readingWrocław, 10 April: 28.7 µg/m³, 2.1× its usual 13.4Wrocław, 11 April: 21.0 µg/m³Wrocław, 12 April: 10.3 µg/m³Wrocław, 13 April: no readingKościanKościan, 6 April: no readingKościan, 7 April: 14.4 µg/m³Kościan, 8 April: no readingKościan, 9 April: no readingKościan, 10 April: 28.0 µg/m³, 2.0× its usual 13.7Kościan, 11 April: 24.8 µg/m³Kościan, 12 April: 12.9 µg/m³Kościan, 13 April: no readingRzeszówRzeszów, 6 April: no readingRzeszów, 7 April: 16.9 µg/m³Rzeszów, 8 April: no readingRzeszów, 9 April: no readingRzeszów, 10 April: 27.7 µg/m³, 2.2× its usual 12.8Rzeszów, 11 April: 19.3 µg/m³Rzeszów, 12 April: 18.5 µg/m³Rzeszów, 13 April: no readingKrapkowiceKrapkowice, 6 April: no readingKrapkowice, 7 April: 12.1 µg/m³Krapkowice, 8 April: no readingKrapkowice, 9 April: no readingKrapkowice, 10 April: 26.9 µg/m³, 2.8× its usual 9.7Krapkowice, 11 April: 18.7 µg/m³Krapkowice, 12 April: 9.1 µg/m³Krapkowice, 13 April: no readingOpoleOpole, 6 April: no readingOpole, 7 April: 16.1 µg/m³Opole, 8 April: no readingOpole, 9 April: no readingOpole, 10 April: 26.9 µg/m³, 2.3× its usual 11.7Opole, 11 April: 22.9 µg/m³Opole, 12 April: 11.4 µg/m³Opole, 13 April: no readingŽilinaŽilina, 6 April: 26.2 µg/m³Žilina, 7 April: 15.4 µg/m³Žilina, 8 April: 15.7 µg/m³Žilina, 9 April: 18.0 µg/m³Žilina, 10 April: 26.7 µg/m³, 2.1× its usual 12.7Žilina, 11 April: 12.8 µg/m³Žilina, 12 April: 8.2 µg/m³Žilina, 13 April: 16.6 µg/m³6 Apr78910111213
The 60 cities with the highest readings of 67, 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
BremerhavenBremen, Germany1 41.69 April6.36.6×
WilhelmshavenLower Saxony, Germany1 39.89 April6.46.2×
ItzehoeSchleswig-Holstein, Germany1 33.99 April6.35.4×
CottbusBrandenburg, Germany1 41.29 April8.05.2×
MonsWallonia, Belgium1 33.79 April7.04.8×
EnschedeOverijssel, The Netherlands1 27.39 April5.94.6×
Blankenfelde-MahlowBrandenburg, Germany1 31.59 April7.44.3×
OytenLower Saxony, Germany1 25.39 April5.94.3×
's-GravenzandeSouth Holland, The Netherlands1 32.29 April7.74.2×
BremenBremen, Germany1 30.39 April7.24.2×
BraunschweigLower Saxony, Germany1 30.49 April7.44.1×
OsnabrückLower Saxony, Germany1 30.39 April7.44.1×
HamburgHamburg, Germany1 36.19 April9.14.0×
MünsterNorth Rhine-Westphalia, Germany1 32.09 April8.04.0×
MaassluisSouth Holland, The Netherlands1 27.49 April6.94.0×
GöttingenLower Saxony, Germany1 26.79 April6.64.0×
SeafordEngland, United Kingdom1 26.49 April6.83.9×
RoeselareFlanders, Belgium1 34.89 April9.23.8×
KortrijkFlanders, Belgium1 32.69 April8.53.8×
OldenburgLower Saxony, Germany1 32.09 April8.43.8×
FriesoytheLower Saxony, Germany1 30.39 April8.03.8×
BielefeldNorth Rhine-Westphalia, Germany1 29.29 April7.63.8×
EvergemFlanders, Belgium1 33.09 April9.03.7×
Frýdek-MístekMoravian-Silesian Region, Czechia2 43.010 April11.83.6×
EisenhüttenstadtBrandenburg, Germany1 26.99 April7.53.6×
The HagueSouth Holland, The Netherlands1 26.59 April7.43.6×
Český TěšínMoravian-Silesian Region, Czechia2 44.010 April13.13.4×
CieszynSilesia, Poland2 44.010 April13.03.4×
CalaisHauts-de-France, France1 33.19 April9.83.4×
KasselHesse, Germany1 28.49 April8.33.4×
PotsdamBrandenburg, Germany1 25.89 April7.73.4×
MaldegemFlanders, Belgium1 27.49 April8.43.3×
Frankfurt (Oder)Brandenburg, Germany1 26.49 April8.03.3×
Jastrzębie ZdrójSilesia, Poland1 58.110 April18.03.2×
Czechowice-DziedziceSilesia, Poland1 46.810 April14.53.2×
HavířovMoravian-Silesian Region, Czechia2 43.510 April13.53.2×
MenenFlanders, Belgium1 28.59 April8.93.2×
GentFlanders, Belgium1 26.79 April8.33.2×
WittenbergSaxony-Anhalt, Germany1 26.79 April8.33.2×
BeverenFlanders, Belgium1 26.39 April8.23.2×
LiberecLiberec Region, Czechia1 25.79 April8.13.2×
LilleHauts-de-France, France1 27.39 April8.73.1×
TarnówLesser Poland, Poland1 34.910 April11.83.0×
IzegemFlanders, Belgium1 29.49 April9.93.0×
Halle (Saale)Saxony-Anhalt, Germany1 25.49 April8.53.0×
RacibórzSilesia, Poland1 40.610 April14.02.9×
OstravaMoravian-Silesian Region, Czechia2 33.410 April11.62.9×
LochristiFlanders, Belgium1 26.09 April8.92.9×
Velsen-ZuidNorth Holland, The Netherlands1 25.89 April8.92.9×
KrakówLesser Poland, Poland1 40.810 April14.62.8×
Valašské MeziříčíZlín, Czechia2 31.49 April11.12.8×
KrapkowiceOpole Voivodeship, Poland1 26.910 April9.72.8×
Wodzisław ŚląskiSilesia, Poland2 34.810 April13.12.7×
BohumínMoravian-Silesian Region, Czechia2 34.810 April13.62.6×
RoubaixHauts-de-France, France1 29.69 April11.32.6×
TeltowBrandenburg, Germany1 26.19 April10.22.6×
JasłoSubcarpathia, Poland1 25.410 April9.62.6×
BerlinState of Berlin, Germany1 25.59 April10.42.5×
Bielsko-BialaSilesia, Poland1 39.610 April16.62.4×
DěčínÚstí nad Labem Region, Czechia1 29.89 April12.62.4×
OpoleOpole Voivodeship, Poland1 26.910 April11.72.3×
RzeszówSubcarpathia, Poland1 27.710 April12.82.2×
ŁaskŁódź Voivodeship, Poland1 36.59 April17.72.1×
KłodzkoLower Silesia, Poland1 28.810 April13.62.1×
WrocławLower Silesia, Poland1 28.710 April13.42.1×
ŽilinaŽilina Region, Slovakia1 26.710 April12.72.1×
KościanGreater Poland, Poland1 28.010 April13.72.0×

Daily means in µg/m³, over the days each city counted in this episode. Highest: its highest of those days. Usual: the city's median for the time of year of that day (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that, with a usual under 5 µg/m³ taken as 5.

Against other episodes in Germany and Poland

Number 22 of 62 episodes in Germany and Poland since our records began, by cities reached.

Bars: cities reached; colour: the level of the episode's highest daily reading. All 62.

Use this page

SmogRank, Europe, April 2023: 67 cities with PM2.5 at twice their usual or more, 9 to 10 April 2023, smogrank.com/episodes/2023-04-europe (accessed 4 October 2026).

Download top 10 (PNG)

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.