SmogRank / Episodes / France

Europe, 28 February to 4 March 2023

For 5 days, from 28 February to 4 March 2023, 279 cities in France, Germany, Poland and 10 more countries had PM2.5 at least twice their usual for the time of year. The worst reading was Radomsko, Łódź Voivodeship, Poland: 148.0 µg/m³ on 1 March, about 5.8× its usual 25.3.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached279in 13 countries
Days528 February to 4 March 2023
Worst day3 March217 cities counted
Furthest above usual8.6×La Rochelle

Day by day

3 March 217 cities at twice their usual or more
Lauda-KönigshofenWürzburgNurembergHeilbronnBambergAschaffenburgGroßostheimCoburgWieslochHeidelbergMeiningenFuldaBensheimSuhlHanau am MainMannheimDarmstadtLudwigshafen am RheinSchwandorf in BayernInnsbruckLampertheimFrankfurt am MainWormsEschbornHattersheimEisenachRüsselsheim am MainMarktredwitzKönigstein im TaunusMainzErfurtGießenWiesbadenMühlhausenWeimarMarburg an der LahnJenaKaiserslauternWitzenhausenBolzanoBad KreuznachKasselLimburg an der LahnGöttingenNordhausenSokolovWeißenfelsSaalfelden am Steinernen MeerMarsbergNetphenAltenburgGoslarHalle (Saale)HalberstadtPilsenSalzgitterHildesheimKöthenBraunschweigSoestBitterfeld-WolfenLüdenscheidRintelnHannoverMagdeburgBielefeldUnnaSchwerteBurg bei MagdeburgLitvínovWelsLeverkusenTepliceTraunDattelnLinzAnsfeldenMünsterOsnabrückThionvilleHansestadt SalzwedelGelsenkirchenLuxembourgÚstí nad LabemAostaBrandenburg an der HavelOberhausenEsch-sur-AlzetteLuckenwaldeOytenWittenbergeBremenDelmenhorstTurinBorkenPotsdamGenoaWeselNauenKleinmachnowAmstettenTeltowFalkenseeLingenLa SpeziaBlankenfelde-MahlowHamburgEnschedeOldenburgKoperLubnjowFriesoytheSavonaNeuruppinKönigs WusterhausenBerlinMladá BoleslavSchwerinWolfsbergBremerhavenCottbusVenrayNeuenhagenLübeckLjubljanaBernau bei BerlinFlémalle-HauteItzehoeWilhelmshavenGenkWismarStrausbergNijmegenGüstrowHasseltHouthalenEberswaldeAndenneSankt PöltenEindhovenRijekaGrazTrbovljeKielEisenhüttenstadtFrankfurt (Oder)PesaroRostockNeubrandenburgCeljeMolBarneveldGroningenMentonŽďár nad SázavouMonacoAarschotTilburgMariborSchwedt (Oder)NiceCharleroiFlensburgRixensartFalconara MarittimaUtrechtJesiIJsselsteinPtujBredaZaventemBastiaMaarssenMechelenCannesStralsundBrusselsGrimbergenWillebroekSzczecinAntwerpKapellenGorzów WielkopolskiGivorsZwijndrechtStabroekRidderkerkFréjusAmsterdamPurmerendBeverenŚwinoujścieMedemblikBadhoevedorpMonsCivitanova MarcheRotterdamSchiedamHillegomSpijkenisseVelserbroekVelsen-ZuidMaassluisThe HagueLochristi's-GravenzandeValenciennesGentEvergemDenainTournaiLa GardeKoprivnicaWaregemMaldegemKortrijkRoubaixDouaiIzegemMenenLilleRoeselareSereďPoznańArrasNîmesNitraOpoleKoksijdeLunelBanja LukaPúchovPartizánskeDunkirkMontpellierPrievidzaŽilinaHandlováNakło nad NoteciąŽiar nad HronomCalaisMartinUstkaBydgoszczBanská BystricaZvolenRužomberokLiberpolisMostarToruńKościerzynaLiptovský MikulᚌwiecieLučenecPerpignanSopotPopradGdyniaGdańskTrebinjePłockSpišská Nová VesCaenles EscaldesBelgradePruszkówLegionowoWarsawKonstancin-JeziornaOlsztynVranov nad TopľouPułtuskPejëCherbourgMitrovicëKętrzynPrizrenKosovo PoljeSiedlcePristinaPrzemyślGjilanAngletSaint-BrieucEłkGrajewoDonostia / San SebastiánOriaCluj-NapocaZarautzBiałystokLorientSuwałkiCalahorraBermeoAmorebietaGasteiz / VitoriaCraiovaBilbaoGetxoLaudio / LlodioBrestKaunasBurgosVilniusWeidenHagenMostTrenčínPrešovLęborkSteyrSaalfeldSninaZielona GóraPezinokSenecBardejovHradec KrálovéOlomoucŁukówČadcaNiskoJastrzębie ZdrójWłocławekGreizDillingenDortmundKlagenfurt am WörtherseeKadaňKlosterneuburgDevínska Nová VesKomárnoŻaryZnojmoBerounKielceKutnoBihaćBielsko-BialaMödlingSpeyerPragueTrnavaDěčínJelenia GóraŁódźKrakówWarsteinEssenAnsbachAnconaKędzierzyn-KoźleHumennéKošiceTrebišovKatowiceLublinRadomNettetalVenloGapWuppertalViennaČeské BudějoviceJihlavaBrnoKranjPardubiceŻyrardówCzechowice-DziedziceStuttgartPerchtoldsdorfLiberecBratislavaNovo MestoOtwockBéthuneDuisburgPassauAnnecyIngolstadtUlmKladnoSenicaŽideniceZamośćJarosławWrocławDębicaAmiensHattingenKelheimMetzRouenKarlsruheKehlLudwigsburgOpavaHavířovKłodzkoKaliszLe HavreBadenSaarbrückenTraunreutGardanneFilderstadtTrierCoulommiersSainte-Geneviève-des-BoisBogatyniaMalackyKrapkowicePřerovTřinecOstravaMielecŁaskDieppeNancyKrefeldWawerWodzisław ŚląskiBohumínManosquePforzheimAalenCreilAvignonDüsseldorfKölnNeu-UlmNeuwiedHodonínVannesÉvreuxSolingenBiberach an der RißAugsburgBurghausenSallanchesSaint-MaloFos-sur-MerSaint-QuentinRatingenBeauvaisVitrollesLyonKonstanzKreuzlingenDaxFriedrichshafenKarvináTarnówRacibórzAlençonParisArlesStrasbourgNamurHernaniHaguenauBonnLunévilleKoblenzMontbéliardHraniceJasłoCieszynČeský TěšínValašské MeziříčíEggenstein-LeopoldshafenMarseilleTarbesMunichTübingenLindauRomans-sur-IsèreRennesHerrenbergReimsKroměřížAugustówRzeszówBendorfDomontVillingen-SchwenningenAix-en-ProvenceBaden-BadenDreuxChartresZlínStarachowiceSarcellesMarignaneMelunÉpinalReutlingenKrosnoDurangoMulhouseNysaLisieuxRambouilletMont-de-MarsanÉpernaySalon-de-ProvenceKempten (Allgäu)JüchenLensMarche-en-FamenneLe MansValenceVillefranche-sur-SaôneMeyzieuFrýdek-MístekLiègeVerdunMüllheimGrenobleMeylanKościanStarnbergToulouseForbachSaint-DizierOrléansToursJülichLourdesSaint-NazaireLormontMönchengladbachPauRodezDijonMontargisBaselChalon-sur-SaôneAachenLörrachFontainebleauMontaubanMontceau-les-MinesSaint-ÉtienneFreiburgAurillacMarmandeAlbertvilleBordeauxNantesAuxerreJoué-lès-ToursAnnemasseBergheimChambérySaint-ChamondBesançonEupenÉtampesBloisPérigueuxRadomskoMâconClermont-FerrandPoitiersBourgesCouëronOlivetVesoulMoulinsHeerlenLimogesMontluçonBourg-en-BresseAngersChâteaurouxNiortTroyesLa Roche-sur-YonAngoulêmeLons-le-SaunierLa Rochelle
25 Feb2627281 Mar234567
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

RadomskoRadomsko, 25 February: 11.1 µg/m³Radomsko, 26 February: 19.0 µg/m³Radomsko, 27 February: 23.7 µg/m³Radomsko, 28 February: 89.4 µg/m³, 3.4× its usual 26.0Radomsko, 1 March: 148.0 µg/m³, 5.8× its usual 25.3Radomsko, 2 March: 130.3 µg/m³, 5.3× its usual 24.6Radomsko, 3 March: 45.4 µg/m³Radomsko, 4 March: 18.0 µg/m³Radomsko, 5 March: 18.4 µg/m³Radomsko, 6 March: 19.3 µg/m³Radomsko, 7 March: 20.9 µg/m³KościanKościan, 25 February: 8.7 µg/m³Kościan, 26 February: 5.9 µg/m³Kościan, 27 February: 19.9 µg/m³Kościan, 28 February: 61.3 µg/m³, 2.3× its usual 27.1Kościan, 1 March: 121.2 µg/m³, 4.4× its usual 27.3Kościan, 2 March: 60.6 µg/m³, 2.2× its usual 27.1Kościan, 3 March: 27.4 µg/m³Kościan, 4 March: 22.0 µg/m³Kościan, 5 March: 31.2 µg/m³Kościan, 6 March: 42.9 µg/m³Kościan, 7 March: 26.7 µg/m³RzeszówRzeszów, 25 February: 13.6 µg/m³Rzeszów, 26 February: 10.0 µg/m³Rzeszów, 27 February: 13.4 µg/m³Rzeszów, 28 February: 51.8 µg/m³, 2.2× its usual 24.0Rzeszów, 1 March: 91.0 µg/m³, 3.7× its usual 24.7Rzeszów, 2 March: 74.9 µg/m³, 3.1× its usual 24.5Rzeszów, 3 March: 63.2 µg/m³, 2.6× its usual 24.2Rzeszów, 4 March: 25.0 µg/m³Rzeszów, 5 March: 14.4 µg/m³Rzeszów, 6 March: 12.9 µg/m³Rzeszów, 7 March: 17.9 µg/m³StarachowiceStarachowice, 25 February: 6.9 µg/m³Starachowice, 26 February: 13.2 µg/m³Starachowice, 27 February: 11.1 µg/m³Starachowice, 28 February: 47.4 µg/m³, 2.0× its usual 23.6Starachowice, 1 March: 71.6 µg/m³, 3.0× its usual 23.8Starachowice, 2 March: 89.9 µg/m³, 3.8× its usual 23.8Starachowice, 3 March: 33.8 µg/m³Starachowice, 4 March: 15.2 µg/m³Starachowice, 5 March: 11.7 µg/m³Starachowice, 6 March: 21.4 µg/m³Starachowice, 7 March: 26.1 µg/m³AugustówAugustów, 25 February: 18.6 µg/m³Augustów, 26 February: 10.6 µg/m³Augustów, 27 February: 40.8 µg/m³Augustów, 28 February: 79.1 µg/m³, 3.7× its usual 21.6Augustów, 1 March: 23.1 µg/m³Augustów, 2 March: 27.3 µg/m³Augustów, 3 March: 20.2 µg/m³Augustów, 4 March: 9.6 µg/m³Augustów, 5 March: 16.7 µg/m³Augustów, 6 March: 32.3 µg/m³Augustów, 7 March: 40.9 µg/m³RacibórzRacibórz, 25 February: 12.2 µg/m³Racibórz, 26 February: 12.9 µg/m³Racibórz, 27 February: 17.3 µg/m³Racibórz, 28 February: 48.1 µg/m³, 2.0× its usual 23.6Racibórz, 1 March: 74.0 µg/m³, 3.1× its usual 23.6Racibórz, 2 March: 75.7 µg/m³, 3.3× its usual 23.0Racibórz, 3 March: 46.1 µg/m³, 2.0× its usual 22.7Racibórz, 4 March: 31.5 µg/m³Racibórz, 5 March: 15.7 µg/m³Racibórz, 6 March: 19.1 µg/m³Racibórz, 7 March: 22.5 µg/m³WłocławekWłocławek, 25 February: 12.1 µg/m³Włocławek, 26 February: 7.5 µg/m³Włocławek, 27 February: 15.0 µg/m³Włocławek, 28 February: 75.0 µg/m³, 2.1× its usual 34.9Włocławek, 1 March: 73.1 µg/m³, 2.1× its usual 35.0Włocławek, 2 March: 45.5 µg/m³Włocławek, 3 March: 24.4 µg/m³Włocławek, 4 March: 14.7 µg/m³Włocławek, 5 March: 17.4 µg/m³Włocławek, 6 March: 38.1 µg/m³Włocławek, 7 March: 31.1 µg/m³ZamośćZamość, 25 February: 13.7 µg/m³Zamość, 26 February: 9.4 µg/m³Zamość, 27 February: 11.1 µg/m³Zamość, 28 February: 62.3 µg/m³, 2.7× its usual 23.2Zamość, 1 March: 47.4 µg/m³, 2.0× its usual 23.3Zamość, 2 March: 54.0 µg/m³, 2.3× its usual 23.3Zamość, 3 March: 31.5 µg/m³Zamość, 4 March: 19.0 µg/m³Zamość, 5 March: 10.7 µg/m³Zamość, 6 March: 20.8 µg/m³Zamość, 7 March: 19.6 µg/m³ŻyrardówŻyrardów, 25 February: 9.2 µg/m³Żyrardów, 26 February: 5.1 µg/m³Żyrardów, 27 February: 16.4 µg/m³Żyrardów, 28 February: 52.4 µg/m³, 2.1× its usual 25.4Żyrardów, 1 March: 35.5 µg/m³Żyrardów, 2 March: 60.8 µg/m³, 2.5× its usual 24.5Żyrardów, 3 March: 32.4 µg/m³Żyrardów, 4 March: 12.8 µg/m³Żyrardów, 5 March: 18.5 µg/m³Żyrardów, 6 March: 24.7 µg/m³Żyrardów, 7 March: 21.1 µg/m³RadomRadom, 25 February: 12.3 µg/m³Radom, 26 February: 17.9 µg/m³Radom, 27 February: 14.6 µg/m³Radom, 28 February: 58.0 µg/m³, 2.4× its usual 24.0Radom, 1 March: 53.8 µg/m³, 2.2× its usual 24.0Radom, 2 March: 48.0 µg/m³, 2.0× its usual 24.0Radom, 3 March: 39.4 µg/m³Radom, 4 March: 19.3 µg/m³Radom, 5 March: 19.5 µg/m³Radom, 6 March: 23.1 µg/m³Radom, 7 March: 22.0 µg/m³WawerWawer, 25 February: 14.9 µg/m³Wawer, 26 February: 17.2 µg/m³Wawer, 27 February: 13.2 µg/m³Wawer, 28 February: 42.0 µg/m³, 2.3× its usual 18.5Wawer, 1 March: 54.7 µg/m³, 3.0× its usual 18.5Wawer, 2 March: 50.3 µg/m³, 2.7× its usual 18.6Wawer, 3 March: 43.8 µg/m³, 2.4× its usual 18.0Wawer, 4 March: 18.2 µg/m³Wawer, 5 March: 18.3 µg/m³Wawer, 6 March: 30.0 µg/m³Wawer, 7 March: 28.0 µg/m³ŁaskŁask, 25 February: 10.9 µg/m³Łask, 26 February: 9.2 µg/m³Łask, 27 February: 25.5 µg/m³Łask, 28 February: 45.9 µg/m³Łask, 1 March: 95.0 µg/m³, 2.9× its usual 32.5Łask, 2 March: 85.4 µg/m³, 2.6× its usual 32.5Łask, 3 March: 36.6 µg/m³Łask, 4 March: 21.7 µg/m³Łask, 5 March: 23.2 µg/m³Łask, 6 March: 25.6 µg/m³Łask, 7 March: 18.0 µg/m³KaliszKalisz, 25 February: 9.1 µg/m³Kalisz, 26 February: 9.1 µg/m³Kalisz, 27 February: 19.3 µg/m³Kalisz, 28 February: 46.0 µg/m³Kalisz, 1 March: 90.1 µg/m³, 2.8× its usual 32.6Kalisz, 2 March: 85.0 µg/m³, 2.7× its usual 32.0Kalisz, 3 March: 25.4 µg/m³Kalisz, 4 March: 17.6 µg/m³Kalisz, 5 March: 17.4 µg/m³Kalisz, 6 March: 19.3 µg/m³Kalisz, 7 March: no readingKłodzkoKłodzko, 25 February: 6.1 µg/m³Kłodzko, 26 February: 7.8 µg/m³Kłodzko, 27 February: 13.1 µg/m³Kłodzko, 28 February: 43.5 µg/m³Kłodzko, 1 March: 75.6 µg/m³, 2.5× its usual 30.2Kłodzko, 2 March: 85.9 µg/m³, 2.8× its usual 30.2Kłodzko, 3 March: 78.7 µg/m³, 2.6× its usual 29.9Kłodzko, 4 March: 34.4 µg/m³Kłodzko, 5 March: 11.9 µg/m³Kłodzko, 6 March: 17.1 µg/m³Kłodzko, 7 March: 14.9 µg/m³Frýdek-MístekFrýdek-Místek, 25 February: 5.7 µg/m³Frýdek-Místek, 26 February: 10.5 µg/m³Frýdek-Místek, 27 February: 14.8 µg/m³Frýdek-Místek, 28 February: 24.3 µg/m³Frýdek-Místek, 1 March: 58.7 µg/m³, 3.2× its usual 18.6Frýdek-Místek, 2 March: 77.6 µg/m³, 4.3× its usual 17.9Frýdek-Místek, 3 March: 65.7 µg/m³, 3.7× its usual 17.7Frýdek-Místek, 4 March: 29.1 µg/m³Frýdek-Místek, 5 March: 7.7 µg/m³Frýdek-Místek, 6 March: 7.3 µg/m³Frýdek-Místek, 7 March: 16.5 µg/m³BohumínBohumín, 25 February: 5.4 µg/m³Bohumín, 26 February: 12.0 µg/m³Bohumín, 27 February: 13.6 µg/m³Bohumín, 28 February: 25.0 µg/m³Bohumín, 1 March: 68.9 µg/m³, 2.7× its usual 25.8Bohumín, 2 March: 76.3 µg/m³, 3.0× its usual 25.7Bohumín, 3 March: 52.0 µg/m³, 2.2× its usual 23.4Bohumín, 4 March: 27.1 µg/m³Bohumín, 5 March: 10.0 µg/m³Bohumín, 6 March: 9.2 µg/m³Bohumín, 7 March: 13.5 µg/m³Wodzisław ŚląskiWodzisław Śląski, 25 February: 5.4 µg/m³Wodzisław Śląski, 26 February: 12.0 µg/m³Wodzisław Śląski, 27 February: 13.6 µg/m³Wodzisław Śląski, 28 February: 25.0 µg/m³Wodzisław Śląski, 1 March: 68.9 µg/m³, 2.7× its usual 25.8Wodzisław Śląski, 2 March: 76.3 µg/m³, 3.0× its usual 25.7Wodzisław Śląski, 3 March: 52.0 µg/m³, 2.2× its usual 23.4Wodzisław Śląski, 4 March: 27.1 µg/m³Wodzisław Śląski, 5 March: 10.0 µg/m³Wodzisław Śląski, 6 March: 9.2 µg/m³Wodzisław Śląski, 7 March: 13.5 µg/m³DębicaDębica, 25 February: 14.7 µg/m³Dębica, 26 February: 9.5 µg/m³Dębica, 27 February: 12.3 µg/m³Dębica, 28 February: 49.3 µg/m³Dębica, 1 March: 73.2 µg/m³, 2.7× its usual 26.8Dębica, 2 March: 70.7 µg/m³, 2.6× its usual 26.7Dębica, 3 March: 64.2 µg/m³, 2.4× its usual 26.7Dębica, 4 March: 28.9 µg/m³Dębica, 5 March: 14.3 µg/m³Dębica, 6 March: 16.4 µg/m³Dębica, 7 March: 20.9 µg/m³TarnówTarnów, 25 February: 9.3 µg/m³Tarnów, 26 February: 8.5 µg/m³Tarnów, 27 February: 12.7 µg/m³Tarnów, 28 February: 41.0 µg/m³Tarnów, 1 March: 72.0 µg/m³, 3.3× its usual 21.6Tarnów, 2 March: 65.9 µg/m³, 3.1× its usual 21.5Tarnów, 3 March: 52.4 µg/m³, 2.4× its usual 21.5Tarnów, 4 March: 21.7 µg/m³Tarnów, 5 March: 12.8 µg/m³Tarnów, 6 March: 13.5 µg/m³Tarnów, 7 March: 16.9 µg/m³MielecMielec, 25 February: 9.0 µg/m³Mielec, 26 February: 13.7 µg/m³Mielec, 27 February: 15.3 µg/m³Mielec, 28 February: 41.1 µg/m³Mielec, 1 March: 67.7 µg/m³, 2.9× its usual 23.0Mielec, 2 March: 62.8 µg/m³, 2.8× its usual 22.8Mielec, 3 March: 51.7 µg/m³, 2.3× its usual 22.5Mielec, 4 March: 22.7 µg/m³Mielec, 5 March: 10.7 µg/m³Mielec, 6 March: 13.4 µg/m³Mielec, 7 March: 18.8 µg/m³Valašské MeziříčíValašské Meziříčí, 25 February: 6.3 µg/m³Valašské Meziříčí, 26 February: 7.8 µg/m³Valašské Meziříčí, 27 February: 11.4 µg/m³Valašské Meziříčí, 28 February: 26.2 µg/m³Valašské Meziříčí, 1 March: 50.4 µg/m³, 2.5× its usual 20.0Valašské Meziříčí, 2 March: 67.6 µg/m³, 3.5× its usual 19.4Valašské Meziříčí, 3 March: 61.6 µg/m³, 3.2× its usual 19.3Valašské Meziříčí, 4 March: 31.6 µg/m³Valašské Meziříčí, 5 March: 13.9 µg/m³Valašské Meziříčí, 6 March: 8.5 µg/m³Valašské Meziříčí, 7 March: 19.9 µg/m³KarvináKarviná, 25 February: 5.9 µg/m³Karviná, 26 February: 9.8 µg/m³Karviná, 27 February: 11.5 µg/m³Karviná, 28 February: 25.5 µg/m³Karviná, 1 March: 50.6 µg/m³, 2.5× its usual 20.2Karviná, 2 March: 66.6 µg/m³, 3.3× its usual 20.0Karviná, 3 March: 36.7 µg/m³Karviná, 4 March: 27.8 µg/m³Karviná, 5 March: 10.3 µg/m³Karviná, 6 March: 10.9 µg/m³Karviná, 7 March: 16.6 µg/m³Český TěšínČeský Těšín, 25 February: 5.3 µg/m³Český Těšín, 26 February: 10.2 µg/m³Český Těšín, 27 February: 15.7 µg/m³Český Těšín, 28 February: 24.1 µg/m³Český Těšín, 1 March: 55.0 µg/m³, 2.8× its usual 19.5Český Těšín, 2 March: 65.8 µg/m³, 3.5× its usual 18.6Český Těšín, 3 March: 53.3 µg/m³, 2.9× its usual 18.4Český Těšín, 4 March: 23.2 µg/m³Český Těšín, 5 March: 8.3 µg/m³Český Těšín, 6 March: 7.9 µg/m³Český Těšín, 7 March: 14.6 µg/m³CieszynCieszyn, 25 February: 5.3 µg/m³Cieszyn, 26 February: 10.2 µg/m³Cieszyn, 27 February: 15.7 µg/m³Cieszyn, 28 February: 24.1 µg/m³Cieszyn, 1 March: 55.0 µg/m³, 2.8× its usual 19.5Cieszyn, 2 March: 65.8 µg/m³, 3.5× its usual 18.6Cieszyn, 3 March: 53.3 µg/m³, 2.9× its usual 18.4Cieszyn, 4 March: 23.2 µg/m³Cieszyn, 5 March: 8.3 µg/m³Cieszyn, 6 March: 7.9 µg/m³Cieszyn, 7 March: 14.6 µg/m³HavířovHavířov, 25 February: 7.4 µg/m³Havířov, 26 February: 10.3 µg/m³Havířov, 27 February: 13.4 µg/m³Havířov, 28 February: 24.4 µg/m³Havířov, 1 March: 52.0 µg/m³, 2.2× its usual 23.3Havířov, 2 March: 64.0 µg/m³, 2.8× its usual 23.2Havířov, 3 March: 47.0 µg/m³, 2.0× its usual 23.1Havířov, 4 March: 27.5 µg/m³Havířov, 5 March: 8.4 µg/m³Havířov, 6 March: 10.7 µg/m³Havířov, 7 March: 16.6 µg/m³OstravaOstrava, 25 February: 5.6 µg/m³Ostrava, 26 February: 11.0 µg/m³Ostrava, 27 February: 14.9 µg/m³Ostrava, 28 February: 32.0 µg/m³Ostrava, 1 March: 59.7 µg/m³, 2.8× its usual 21.6Ostrava, 2 March: 63.1 µg/m³, 2.9× its usual 21.4Ostrava, 3 March: 48.3 µg/m³, 2.3× its usual 21.3Ostrava, 4 March: 26.0 µg/m³Ostrava, 5 March: 8.3 µg/m³Ostrava, 6 March: 10.0 µg/m³Ostrava, 7 March: 17.8 µg/m³NysaNysa, 25 February: 6.0 µg/m³Nysa, 26 February: 7.5 µg/m³Nysa, 27 February: 13.8 µg/m³Nysa, 28 February: 32.2 µg/m³Nysa, 1 March: 52.9 µg/m³, 2.7× its usual 19.3Nysa, 2 March: 62.7 µg/m³, 4.0× its usual 15.6Nysa, 3 March: 50.1 µg/m³, 3.2× its usual 15.5Nysa, 4 March: 23.1 µg/m³Nysa, 5 March: 11.6 µg/m³Nysa, 6 March: 10.5 µg/m³Nysa, 7 March: 11.5 µg/m³JarosławJarosław, 25 February: 12.0 µg/m³Jarosław, 26 February: 8.2 µg/m³Jarosław, 27 February: 8.4 µg/m³Jarosław, 28 February: 43.2 µg/m³Jarosław, 1 March: 62.6 µg/m³, 2.7× its usual 23.2Jarosław, 2 March: 60.2 µg/m³, 2.6× its usual 23.2Jarosław, 3 March: 44.6 µg/m³Jarosław, 4 March: 21.1 µg/m³Jarosław, 5 March: 10.1 µg/m³Jarosław, 6 March: 15.3 µg/m³Jarosław, 7 March: 17.6 µg/m³Jastrzębie ZdrójJastrzębie Zdrój, 25 February: 10.6 µg/m³Jastrzębie Zdrój, 26 February: 19.1 µg/m³Jastrzębie Zdrój, 27 February: 17.9 µg/m³Jastrzębie Zdrój, 28 February: 33.1 µg/m³Jastrzębie Zdrój, 1 March: 59.1 µg/m³, 2.1× its usual 28.4Jastrzębie Zdrój, 2 March: 55.5 µg/m³Jastrzębie Zdrój, 3 March: 58.4 µg/m³, 2.1× its usual 27.9Jastrzębie Zdrój, 4 March: 31.3 µg/m³Jastrzębie Zdrój, 5 March: 16.8 µg/m³Jastrzębie Zdrój, 6 March: 17.2 µg/m³Jastrzębie Zdrój, 7 March: 21.9 µg/m³JasłoJasło, 25 February: 9.7 µg/m³Jasło, 26 February: 5.8 µg/m³Jasło, 27 February: 8.1 µg/m³Jasło, 28 February: 21.5 µg/m³Jasło, 1 March: 45.6 µg/m³, 2.6× its usual 17.3Jasło, 2 March: 59.0 µg/m³, 3.5× its usual 16.8Jasło, 3 March: 50.2 µg/m³, 3.0× its usual 16.6Jasło, 4 March: 23.0 µg/m³Jasło, 5 March: 9.9 µg/m³Jasło, 6 March: 9.6 µg/m³Jasło, 7 March: 16.9 µg/m³LublinLublin, 25 February: 12.6 µg/m³Lublin, 26 February: 9.7 µg/m³Lublin, 27 February: 15.3 µg/m³Lublin, 28 February: 42.2 µg/m³Lublin, 1 March: 58.0 µg/m³, 2.4× its usual 24.0Lublin, 2 March: 57.9 µg/m³, 2.4× its usual 23.8Lublin, 3 March: 36.9 µg/m³Lublin, 4 March: 22.9 µg/m³Lublin, 5 March: 14.7 µg/m³Lublin, 6 March: 30.0 µg/m³Lublin, 7 March: 32.9 µg/m³KatowiceKatowice, 25 February: 14.3 µg/m³Katowice, 26 February: 14.4 µg/m³Katowice, 27 February: 13.8 µg/m³Katowice, 28 February: 30.3 µg/m³Katowice, 1 March: 54.7 µg/m³, 2.3× its usual 24.1Katowice, 2 March: 57.9 µg/m³, 2.4× its usual 24.0Katowice, 3 March: 46.3 µg/m³Katowice, 4 March: 27.2 µg/m³Katowice, 5 March: 16.1 µg/m³Katowice, 6 March: 21.0 µg/m³Katowice, 7 March: 23.2 µg/m³TřinecTřinec, 25 February: 6.1 µg/m³Třinec, 26 February: 11.9 µg/m³Třinec, 27 February: 16.9 µg/m³Třinec, 28 February: 24.2 µg/m³Třinec, 1 March: 47.6 µg/m³, 2.5× its usual 19.4Třinec, 2 March: 56.4 µg/m³, 2.9× its usual 19.3Třinec, 3 March: 56.4 µg/m³, 3.0× its usual 18.7Třinec, 4 March: 21.5 µg/m³Třinec, 5 March: 8.4 µg/m³Třinec, 6 March: 9.8 µg/m³Třinec, 7 March: 18.1 µg/m³ZlínZlín, 25 February: 6.7 µg/m³Zlín, 26 February: 8.5 µg/m³Zlín, 27 February: 9.0 µg/m³Zlín, 28 February: 20.9 µg/m³Zlín, 1 March: 38.3 µg/m³, 2.5× its usual 15.5Zlín, 2 March: 53.7 µg/m³, 3.6× its usual 15.1Zlín, 3 March: 56.4 µg/m³, 3.8× its usual 14.9Zlín, 4 March: 25.3 µg/m³Zlín, 5 March: 8.9 µg/m³Zlín, 6 March: 7.8 µg/m³Zlín, 7 March: 18.2 µg/m³Jelenia GóraJelenia Góra, 25 February: 3.6 µg/m³Jelenia Góra, 26 February: 4.8 µg/m³Jelenia Góra, 27 February: 11.0 µg/m³Jelenia Góra, 28 February: 30.3 µg/m³Jelenia Góra, 1 March: 49.6 µg/m³, 2.1× its usual 23.7Jelenia Góra, 2 March: 55.2 µg/m³, 2.3× its usual 23.5Jelenia Góra, 3 March: 30.7 µg/m³Jelenia Góra, 4 March: 12.7 µg/m³Jelenia Góra, 5 March: 7.0 µg/m³Jelenia Góra, 6 March: 17.3 µg/m³Jelenia Góra, 7 March: 15.6 µg/m³KrosnoKrosno, 25 February: 11.5 µg/m³Krosno, 26 February: 6.5 µg/m³Krosno, 27 February: 9.3 µg/m³Krosno, 28 February: 25.3 µg/m³Krosno, 1 March: 51.2 µg/m³, 3.4× its usual 15.2Krosno, 2 March: 55.1 µg/m³, 3.9× its usual 14.1Krosno, 3 March: 47.9 µg/m³, 3.4× its usual 14.0Krosno, 4 March: 15.2 µg/m³Krosno, 5 March: 9.9 µg/m³Krosno, 6 March: 8.8 µg/m³Krosno, 7 March: 13.3 µg/m³KrapkowiceKrapkowice, 25 February: 4.1 µg/m³Krapkowice, 26 February: 8.0 µg/m³Krapkowice, 27 February: 10.4 µg/m³Krapkowice, 28 February: 23.4 µg/m³Krapkowice, 1 March: 46.1 µg/m³, 2.3× its usual 19.9Krapkowice, 2 March: 52.7 µg/m³, 2.9× its usual 17.9Krapkowice, 3 March: 21.3 µg/m³Krapkowice, 4 March: 10.6 µg/m³Krapkowice, 5 March: 8.4 µg/m³Krapkowice, 6 March: 21.0 µg/m³Krapkowice, 7 March: 17.5 µg/m³HraniceHranice, 25 February: 3.9 µg/m³Hranice, 26 February: 7.3 µg/m³Hranice, 27 February: 10.9 µg/m³Hranice, 28 February: 21.0 µg/m³Hranice, 1 March: 39.6 µg/m³, 2.6× its usual 15.4Hranice, 2 March: 51.9 µg/m³, 3.5× its usual 15.0Hranice, 3 March: 43.1 µg/m³, 2.8× its usual 15.3Hranice, 4 March: 21.9 µg/m³Hranice, 5 March: 8.2 µg/m³Hranice, 6 March: 9.7 µg/m³Hranice, 7 March: 17.9 µg/m³OpavaOpava, 25 February: 6.5 µg/m³Opava, 26 February: 9.0 µg/m³Opava, 27 February: 11.2 µg/m³Opava, 28 February: 24.2 µg/m³Opava, 1 March: 43.0 µg/m³, 2.3× its usual 18.7Opava, 2 March: 51.6 µg/m³, 2.8× its usual 18.7Opava, 3 March: 49.1 µg/m³, 2.6× its usual 18.7Opava, 4 March: 24.7 µg/m³Opava, 5 March: 7.6 µg/m³Opava, 6 March: 8.9 µg/m³Opava, 7 March: 15.2 µg/m³Bourg-en-BresseBourg-en-Bresse, 25 February: 7.1 µg/m³Bourg-en-Bresse, 26 February: 4.3 µg/m³Bourg-en-Bresse, 27 February: 5.7 µg/m³Bourg-en-Bresse, 28 February: 15.3 µg/m³Bourg-en-Bresse, 1 March: 27.6 µg/m³, 3.4× its usual 8.1Bourg-en-Bresse, 2 March: 36.6 µg/m³, 4.5× its usual 8.1Bourg-en-Bresse, 3 March: 51.6 µg/m³, 6.4× its usual 8.1Bourg-en-Bresse, 4 March: 47.2 µg/m³Bourg-en-Bresse, 5 March: 29.2 µg/m³Bourg-en-Bresse, 6 March: 27.1 µg/m³Bourg-en-Bresse, 7 March: 21.8 µg/m³OtwockOtwock, 25 February: 13.7 µg/m³Otwock, 26 February: 29.5 µg/m³Otwock, 27 February: 15.2 µg/m³Otwock, 28 February: 46.9 µg/m³Otwock, 1 March: 39.3 µg/m³Otwock, 2 March: 80.8 µg/m³, 2.6× its usual 31.2Otwock, 3 March: 48.9 µg/m³Otwock, 4 March: 17.7 µg/m³Otwock, 5 March: 16.9 µg/m³Otwock, 6 March: 27.5 µg/m³Otwock, 7 March: 29.0 µg/m³Bielsko-BialaBielsko-Biala, 25 February: 9.0 µg/m³Bielsko-Biala, 26 February: 15.4 µg/m³Bielsko-Biala, 27 February: 16.9 µg/m³Bielsko-Biala, 28 February: 30.3 µg/m³Bielsko-Biala, 1 March: 58.2 µg/m³Bielsko-Biala, 2 March: 70.2 µg/m³, 2.2× its usual 31.3Bielsko-Biala, 3 March: no readingBielsko-Biala, 4 March: no readingBielsko-Biala, 5 March: 14.4 µg/m³Bielsko-Biala, 6 March: 13.2 µg/m³Bielsko-Biala, 7 March: 17.3 µg/m³WrocławWrocław, 25 February: 7.2 µg/m³Wrocław, 26 February: 10.3 µg/m³Wrocław, 27 February: 14.6 µg/m³Wrocław, 28 February: 26.8 µg/m³Wrocław, 1 March: 47.5 µg/m³Wrocław, 2 March: 65.6 µg/m³, 2.7× its usual 24.4Wrocław, 3 March: 24.9 µg/m³Wrocław, 4 March: 15.4 µg/m³Wrocław, 5 March: 10.4 µg/m³Wrocław, 6 March: 18.0 µg/m³Wrocław, 7 March: 20.5 µg/m³KutnoKutno, 25 February: 8.8 µg/m³Kutno, 26 February: 6.4 µg/m³Kutno, 27 February: 12.4 µg/m³Kutno, 28 February: 55.4 µg/m³Kutno, 1 March: 51.5 µg/m³Kutno, 2 March: 64.9 µg/m³, 2.2× its usual 28.9Kutno, 3 March: 34.8 µg/m³Kutno, 4 March: 16.0 µg/m³Kutno, 5 March: 19.9 µg/m³Kutno, 6 March: 30.9 µg/m³Kutno, 7 March: 20.2 µg/m³KrakówKraków, 25 February: 7.1 µg/m³Kraków, 26 February: 7.1 µg/m³Kraków, 27 February: 10.4 µg/m³Kraków, 28 February: 24.5 µg/m³Kraków, 1 March: 52.0 µg/m³Kraków, 2 March: 61.3 µg/m³, 2.2× its usual 27.9Kraków, 3 March: 62.8 µg/m³, 2.3× its usual 27.3Kraków, 4 March: 30.4 µg/m³Kraków, 5 March: 12.9 µg/m³Kraków, 6 March: 20.0 µg/m³Kraków, 7 March: 26.9 µg/m³ŁódźŁódź, 25 February: 8.6 µg/m³Łódź, 26 February: 5.3 µg/m³Łódź, 27 February: 9.8 µg/m³Łódź, 28 February: 26.8 µg/m³Łódź, 1 March: 37.9 µg/m³Łódź, 2 March: 55.8 µg/m³, 2.3× its usual 24.5Łódź, 3 March: 27.6 µg/m³Łódź, 4 March: 16.7 µg/m³Łódź, 5 March: 19.3 µg/m³Łódź, 6 March: 23.5 µg/m³Łódź, 7 March: 18.8 µg/m³KielceKielce, 25 February: 11.6 µg/m³Kielce, 26 February: 13.8 µg/m³Kielce, 27 February: 11.7 µg/m³Kielce, 28 February: 34.1 µg/m³Kielce, 1 March: 40.2 µg/m³Kielce, 2 March: 53.2 µg/m³, 2.2× its usual 23.9Kielce, 3 March: 45.6 µg/m³Kielce, 4 March: 17.6 µg/m³Kielce, 5 March: 18.2 µg/m³Kielce, 6 March: 19.8 µg/m³Kielce, 7 March: 25.3 µg/m³PřerovPřerov, 25 February: 6.3 µg/m³Přerov, 26 February: 6.8 µg/m³Přerov, 27 February: 11.1 µg/m³Přerov, 28 February: 20.5 µg/m³Přerov, 1 March: 35.5 µg/m³Přerov, 2 March: 43.9 µg/m³, 2.4× its usual 18.4Přerov, 3 March: 53.2 µg/m³, 2.9× its usual 18.5Přerov, 4 March: 26.8 µg/m³Přerov, 5 March: 8.9 µg/m³Přerov, 6 March: 10.2 µg/m³Přerov, 7 March: 19.0 µg/m³ChâteaurouxChâteauroux, 25 February: 9.8 µg/m³Châteauroux, 26 February: 6.0 µg/m³Châteauroux, 27 February: 5.1 µg/m³Châteauroux, 28 February: 9.3 µg/m³Châteauroux, 1 March: 21.1 µg/m³Châteauroux, 2 March: 39.1 µg/m³, 4.9× its usual 7.9Châteauroux, 3 March: 52.8 µg/m³, 6.8× its usual 7.8Châteauroux, 4 March: 39.2 µg/m³Châteauroux, 5 March: 26.5 µg/m³Châteauroux, 6 March: 22.7 µg/m³Châteauroux, 7 March: 15.2 µg/m³NiortNiort, 25 February: 9.9 µg/m³Niort, 26 February: 6.3 µg/m³Niort, 27 February: 6.0 µg/m³Niort, 28 February: 12.6 µg/m³Niort, 1 March: 21.2 µg/m³Niort, 2 March: 33.1 µg/m³, 4.4× its usual 7.5Niort, 3 March: 52.7 µg/m³, 7.2× its usual 7.3Niort, 4 March: 45.5 µg/m³Niort, 5 March: 22.6 µg/m³Niort, 6 March: 15.6 µg/m³Niort, 7 March: 15.4 µg/m³La Roche-sur-YonLa Roche-sur-Yon, 25 February: 8.4 µg/m³La Roche-sur-Yon, 26 February: 6.0 µg/m³La Roche-sur-Yon, 27 February: 6.5 µg/m³La Roche-sur-Yon, 28 February: 12.9 µg/m³La Roche-sur-Yon, 1 March: 20.8 µg/m³La Roche-sur-Yon, 2 March: 34.6 µg/m³, 4.6× its usual 7.5La Roche-sur-Yon, 3 March: 52.3 µg/m³, 7.4× its usual 7.1La Roche-sur-Yon, 4 March: 35.8 µg/m³La Roche-sur-Yon, 5 March: 16.8 µg/m³La Roche-sur-Yon, 6 March: 15.7 µg/m³La Roche-sur-Yon, 7 March: 14.7 µg/m³NiskoNisko, 25 February: 11.6 µg/m³Nisko, 26 February: 9.2 µg/m³Nisko, 27 February: 9.4 µg/m³Nisko, 28 February: 29.3 µg/m³Nisko, 1 March: 39.5 µg/m³Nisko, 2 March: 52.1 µg/m³, 2.1× its usual 24.4Nisko, 3 March: 44.6 µg/m³Nisko, 4 March: 21.1 µg/m³Nisko, 5 March: 10.9 µg/m³Nisko, 6 March: 15.7 µg/m³Nisko, 7 March: 19.4 µg/m³MoulinsMoulins, 25 February: 11.4 µg/m³Moulins, 26 February: 5.5 µg/m³Moulins, 27 February: 5.2 µg/m³Moulins, 28 February: 9.6 µg/m³Moulins, 1 March: 23.7 µg/m³Moulins, 2 March: 35.8 µg/m³, 4.2× its usual 8.6Moulins, 3 March: 51.4 µg/m³, 6.0× its usual 8.6Moulins, 4 March: 40.4 µg/m³Moulins, 5 March: 28.3 µg/m³Moulins, 6 March: 28.5 µg/m³Moulins, 7 March: 21.2 µg/m³DěčínDěčín, 25 February: 3.0 µg/m³Děčín, 26 February: 5.9 µg/m³Děčín, 27 February: 11.3 µg/m³Děčín, 28 February: 22.1 µg/m³Děčín, 1 March: 39.7 µg/m³Děčín, 2 March: 50.8 µg/m³, 2.3× its usual 22.1Děčín, 3 March: 30.8 µg/m³Děčín, 4 March: 9.7 µg/m³Děčín, 5 March: 4.1 µg/m³Děčín, 6 March: 13.6 µg/m³Děčín, 7 March: 12.2 µg/m³AngoulêmeAngoulême, 25 February: 8.1 µg/m³Angoulême, 26 February: 6.4 µg/m³Angoulême, 27 February: 8.3 µg/m³Angoulême, 28 February: 10.9 µg/m³Angoulême, 1 March: 22.2 µg/m³Angoulême, 2 March: 38.6 µg/m³, 5.8× its usual 6.6Angoulême, 3 March: 49.5 µg/m³, 7.5× its usual 6.6Angoulême, 4 March: 42.5 µg/m³Angoulême, 5 March: 27.4 µg/m³Angoulême, 6 March: 25.2 µg/m³Angoulême, 7 March: 19.0 µg/m³Czechowice-DziedziceCzechowice-Dziedzice, 25 February: no readingCzechowice-Dziedzice, 26 February: no readingCzechowice-Dziedzice, 27 February: no readingCzechowice-Dziedzice, 28 February: no readingCzechowice-Dziedzice, 1 March: no readingCzechowice-Dziedzice, 2 March: no readingCzechowice-Dziedzice, 3 March: 70.7 µg/m³, 2.5× its usual 28.3Czechowice-Dziedzice, 4 March: 26.0 µg/m³Czechowice-Dziedzice, 5 March: 17.1 µg/m³Czechowice-Dziedzice, 6 March: 13.2 µg/m³Czechowice-Dziedzice, 7 March: 16.9 µg/m³BihaćBihać, 25 February: 10.5 µg/m³Bihać, 26 February: no readingBihać, 27 February: 16.0 µg/m³Bihać, 28 February: 19.2 µg/m³Bihać, 1 March: 18.0 µg/m³Bihać, 2 March: 42.9 µg/m³Bihać, 3 March: 66.4 µg/m³, 2.2× its usual 29.8Bihać, 4 March: 72.8 µg/m³Bihać, 5 March: 68.3 µg/m³Bihać, 6 March: 40.0 µg/m³Bihać, 7 March: 15.6 µg/m³TrebišovTrebišov, 25 February: 16.3 µg/m³Trebišov, 26 February: 8.5 µg/m³Trebišov, 27 February: 7.5 µg/m³Trebišov, 28 February: 11.5 µg/m³Trebišov, 1 March: 17.5 µg/m³Trebišov, 2 March: 18.6 µg/m³Trebišov, 3 March: 35.7 µg/m³Trebišov, 4 March: 51.6 µg/m³, 2.4× its usual 21.1Trebišov, 5 March: 14.9 µg/m³Trebišov, 6 March: 14.3 µg/m³Trebišov, 7 March: 17.7 µg/m³KošiceKošice, 25 February: 20.9 µg/m³Košice, 26 February: 7.8 µg/m³Košice, 27 February: 8.0 µg/m³Košice, 28 February: 11.6 µg/m³Košice, 1 March: 16.2 µg/m³Košice, 2 March: 17.9 µg/m³Košice, 3 March: 35.7 µg/m³Košice, 4 March: 50.8 µg/m³, 2.4× its usual 21.4Košice, 5 March: 17.4 µg/m³Košice, 6 March: 14.8 µg/m³Košice, 7 March: 22.7 µg/m³HumennéHumenné, 25 February: 15.5 µg/m³Humenné, 26 February: 8.8 µg/m³Humenné, 27 February: 7.2 µg/m³Humenné, 28 February: 14.0 µg/m³Humenné, 1 March: 25.3 µg/m³Humenné, 2 March: 35.8 µg/m³Humenné, 3 March: 42.8 µg/m³Humenné, 4 March: 50.7 µg/m³, 2.4× its usual 21.4Humenné, 5 March: 20.6 µg/m³Humenné, 6 March: 26.2 µg/m³Humenné, 7 March: 22.1 µg/m³25 Feb271 Mar357
The 60 cities with the highest readings of 279, 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
La RochelleNew Aquitaine, France2 48.23 March5.68.6×
Lons-le-SaunierBourgogne-Franche-Comté, France2 37.83 March4.87.6×
AngoulêmeNew Aquitaine, France2 49.53 March6.67.5×
La Roche-sur-YonPays de la Loire, France2 52.33 March7.17.4×
TroyesGrand Est, France2 39.13 March5.37.4×
NiortNew Aquitaine, France2 52.73 March7.37.2×
ChâteaurouxCentre-Val de Loire, France2 52.83 March7.86.8×
AngersPays de la Loire, France2 43.73 March6.66.6×
Bourg-en-BresseAuvergne-Rhône-Alpes, France3 51.63 March8.16.4×
MontluçonAuvergne-Rhône-Alpes, France3 42.83 March6.76.4×
LimogesNew Aquitaine, France2 47.23 March7.76.1×
HeerlenLimburg, The Netherlands1 41.13 March6.76.1×
MoulinsAuvergne-Rhône-Alpes, France2 51.43 March8.66.0×
VesoulBourgogne-Franche-Comté, France3 42.23 March7.06.0×
OlivetCentre-Val de Loire, France2 41.73 March6.96.0×
CouëronPays de la Loire, France2 36.03 March6.06.0×
BourgesCentre-Val de Loire, France2 48.13 March8.25.9×
PoitiersNew Aquitaine, France2 46.03 March7.85.9×
Clermont-FerrandAuvergne-Rhône-Alpes, France2 38.33 March6.55.9×
MâconBourgogne-Franche-Comté, France2 32.63 March5.55.9×
RadomskoŁódź Voivodeship, Poland3 148.01 March25.35.8×
PérigueuxNew Aquitaine, France2 45.23 March7.95.7×
BloisCentre-Val de Loire, France2 40.13 March7.05.7×
ÉtampesÎle-de-France, France2 37.93 March6.65.7×
EupenWallonia, Belgium1 35.13 March6.25.7×
BesançonBourgogne-Franche-Comté, France2 41.23 March7.35.6×
Saint-ChamondAuvergne-Rhône-Alpes, France3 35.03 March6.35.6×
ChambéryAuvergne-Rhône-Alpes, France2 43.23 March7.85.5×
BergheimNorth Rhine-Westphalia, Germany1 42.93 March7.85.5×
AnnemasseAuvergne-Rhône-Alpes, France2 48.43 March9.05.4×
Joué-lès-ToursCentre-Val de Loire, France2 44.83 March8.35.4×
AuxerreBourgogne-Franche-Comté, France3 44.23 March8.25.4×
NantesPays de la Loire, France2 40.33 March7.45.4×
BordeauxNew Aquitaine, France2 44.43 March8.35.3×
AlbertvilleAuvergne-Rhône-Alpes, France3 40.23 March7.65.3×
MarmandeNew Aquitaine, France2 33.73 March6.45.3×
AurillacAuvergne-Rhône-Alpes, France2 26.32 March4.45.3×
FreiburgBaden-Wurttemberg, Germany2 39.73 March7.65.2×
Saint-ÉtienneAuvergne-Rhône-Alpes, France3 38.53 March7.45.2×
Montceau-les-MinesBourgogne-Franche-Comté, France2 36.03 March7.05.1×
MontaubanOccitanie, France2 35.53 March6.95.1×
FontainebleauÎle-de-France, France2 32.13 March6.35.1×
LörrachBaden-Wurttemberg, Germany2 45.33 March9.05.0×
AachenNorth Rhine-Westphalia, Germany1 43.33 March8.65.0×
Chalon-sur-SaôneBourgogne-Franche-Comté, France2 36.83 March7.45.0×
BaselBasel-City, Switzerland2 45.33 March9.34.9×
MontargisCentre-Val de Loire, France2 39.23 March8.04.9×
DijonBourgogne-Franche-Comté, France2 30.13 March6.14.9×
RodezOccitanie, France2 27.53 March5.64.9×
PauNew Aquitaine, France1 33.13 March6.94.8×
MönchengladbachNorth Rhine-Westphalia, Germany1 43.73 March9.34.7×
LormontNew Aquitaine, France2 35.93 March7.74.7×
Saint-NazairePays de la Loire, France2 30.73 March6.64.7×
LourdesOccitanie, France1 26.13 March5.64.7×
JülichNorth Rhine-Westphalia, Germany1 43.33 March9.54.6×
ToursCentre-Val de Loire, France2 39.13 March8.54.6×
OrléansCentre-Val de Loire, France2 45.03 March10.04.5×
Saint-DizierGrand Est, France2 37.03 March8.24.5×
ForbachGrand Est, France1 35.23 March7.84.5×
ToulouseOccitanie, France1 33.63 March7.44.5×
StarnbergBavaria, Germany2 27.32 March6.14.5×
KościanGreater Poland, Poland3 121.21 March27.34.4×
MeylanAuvergne-Rhône-Alpes, France3 44.43 March10.14.4×
GrenobleAuvergne-Rhône-Alpes, France3 41.43 March9.44.4×
MüllheimBaden-Wurttemberg, Germany2 37.83 March8.54.4×
VerdunGrand Est, France1 36.63 March8.34.4×
LiègeWallonia, Belgium1 33.33 March7.64.4×
Frýdek-MístekMoravian-Silesian Region, Czechia3 77.62 March17.94.3×
MeyzieuAuvergne-Rhône-Alpes, France3 41.73 March9.84.3×
Villefranche-sur-SaôneAuvergne-Rhône-Alpes, France3 40.03 March9.24.3×
ValenceAuvergne-Rhône-Alpes, France3 38.83 March9.14.3×
Le MansPays de la Loire, France2 34.33 March7.94.3×
Marche-en-FamenneWallonia, Belgium1 27.83 March6.44.3×
LensHauts-de-France, France1 26.32 March6.14.3×
JüchenNorth Rhine-Westphalia, Germany1 39.93 March9.64.2×
Kempten (Allgäu)Bavaria, Germany2 36.43 March8.64.2×
Salon-de-ProvenceProvence-Alpes-Côte d'Azur, France2 31.53 March7.54.2×
ÉpernayGrand Est, France2 29.33 March7.04.2×
Mont-de-MarsanNew Aquitaine, France1 31.83 March7.84.1×
RambouilletÎle-de-France, France2 31.72 March7.84.1×
LisieuxNormandy, France1 28.42 March6.94.1×
NysaOpole Voivodeship, Poland3 62.72 March15.64.0×
MulhouseGrand Est, France2 45.73 March11.34.0×
DurangoBasque Country, Spain1 29.43 March7.34.0×
KrosnoSubcarpathia, Poland3 55.12 March14.13.9×
ReutlingenBaden-Wurttemberg, Germany2 38.53 March9.93.9×
ÉpinalGrand Est, France2 35.53 March9.13.9×
MelunÎle-de-France, France2 35.03 March8.93.9×
MarignaneProvence-Alpes-Côte d'Azur, France2 34.83 March8.93.9×
SarcellesÎle-de-France, France2 33.92 March8.73.9×
StarachowiceŚwiętokrzyskie, Poland3 89.92 March23.83.8×
ZlínZlín, Czechia3 56.43 March14.93.8×
ChartresCentre-Val de Loire, France2 32.33 March8.53.8×
DreuxCentre-Val de Loire, France2 30.32 March7.93.8×
Baden-BadenBaden-Wurttemberg, Germany2 29.13 March7.73.8×
Aix-en-ProvenceProvence-Alpes-Côte d'Azur, France3 27.92 March7.43.8×
Villingen-SchwenningenBaden-Wurttemberg, Germany1 27.03 March7.23.8×
DomontÎle-de-France, France2 26.72 March7.03.8×
BendorfRheinland-Pfalz, Germany1 25.73 March6.73.8×
RzeszówSubcarpathia, Poland4 91.01 March24.73.7×
AugustówPodlasie, Poland1 79.128 February21.63.7×
KroměřížZlín, Czechia3 47.53 March12.73.7×
ReimsGrand Est, France2 31.63 March8.53.7×
HerrenbergBaden-Wurttemberg, Germany2 31.03 March8.33.7×
RennesBrittany, France2 29.22 March8.03.7×
Romans-sur-IsèreAuvergne-Rhône-Alpes, France3 40.83 March11.43.6×
LindauBavaria, Germany2 37.83 March10.63.6×
TübingenBaden-Wurttemberg, Germany2 36.43 March10.23.6×
MunichBavaria, Germany2 34.93 March9.83.6×
TarbesOccitanie, France1 32.23 March8.93.6×
MarseilleProvence-Alpes-Côte d'Azur, France3 30.53 March8.43.6×
Eggenstein-LeopoldshafenBaden-Wurttemberg, Germany2 30.23 March8.43.6×
Valašské MeziříčíZlín, Czechia3 67.62 March19.43.5×
Český TěšínMoravian-Silesian Region, Czechia3 65.82 March18.63.5×
CieszynSilesia, Poland3 65.82 March18.63.5×
JasłoSubcarpathia, Poland3 59.02 March16.83.5×
HraniceOlomouc Region, Czechia3 51.92 March15.03.5×
MontbéliardBourgogne-Franche-Comté, France2 43.23 March12.43.5×
KoblenzRheinland-Pfalz, Germany1 42.83 March12.13.5×
LunévilleGrand Est, France2 39.23 March11.13.5×
BonnNorth Rhine-Westphalia, Germany1 33.83 March9.63.5×
HaguenauGrand Est, France1 32.83 March9.53.5×
HernaniBasque Country, Spain1 25.62 March7.43.5×
NamurWallonia, Belgium1 25.23 March7.33.5×
StrasbourgGrand Est, France2 40.13 March11.83.4×
ArlesProvence-Alpes-Côte d'Azur, France2 33.83 March10.03.4×
ParisÎle-de-France, France2 31.42 March9.33.4×
AlençonNormandy, France2 26.83 March7.93.4×
RacibórzSilesia, Poland4 75.72 March23.03.3×
TarnówLesser Poland, Poland3 72.01 March21.63.3×
KarvináMoravian-Silesian Region, Czechia2 66.62 March20.03.3×
FriedrichshafenBaden-Wurttemberg, Germany2 37.33 March11.23.3×
DaxNew Aquitaine, France2 36.33 March10.93.3×
KreuzlingenThurgau, Switzerland2 34.33 March10.43.3×
KonstanzBaden-Wurttemberg, Germany2 34.33 March10.43.3×
LyonAuvergne-Rhône-Alpes, France2 33.53 March10.13.3×
VitrollesProvence-Alpes-Côte d'Azur, France2 32.73 March9.83.3×
BeauvaisHauts-de-France, France2 29.42 March9.03.3×
RatingenNorth Rhine-Westphalia, Germany1 29.03 March8.83.3×
Saint-QuentinHauts-de-France, France2 28.03 March8.63.3×
Fos-sur-MerProvence-Alpes-Côte d'Azur, France1 26.53 March8.13.3×
Saint-MaloBrittany, France1 25.72 March7.83.3×
SallanchesAuvergne-Rhône-Alpes, France3 43.23 March13.63.2×
BurghausenBavaria, Germany1 36.03 March11.13.2×
AugsburgBavaria, Germany1 35.03 March10.83.2×
Biberach an der RißBaden-Wurttemberg, Germany2 33.53 March10.43.2×
SolingenNorth Rhine-Westphalia, Germany1 29.43 March9.23.2×
ÉvreuxNormandy, France1 27.92 March8.73.2×
VannesBrittany, France1 26.92 March8.53.2×
HodonínSouth Moravian, Czechia3 48.73 March15.73.1×
NeuwiedRheinland-Pfalz, Germany1 40.73 March13.03.1×
Neu-UlmBavaria, Germany1 34.43 March11.23.1×
KölnNorth Rhine-Westphalia, Germany1 33.03 March10.83.1×
DüsseldorfNorth Rhine-Westphalia, Germany1 31.73 March10.23.1×
AvignonProvence-Alpes-Côte d'Azur, France2 31.33 March10.23.1×
CreilHauts-de-France, France2 30.52 March9.73.1×
AalenBaden-Wurttemberg, Germany1 30.33 March9.73.1×
PforzheimBaden-Wurttemberg, Germany2 28.03 March9.13.1×
ManosqueProvence-Alpes-Côte d'Azur, France1 27.81 March9.03.1×
BohumínMoravian-Silesian Region, Czechia3 76.32 March25.73.0×
Wodzisław ŚląskiSilesia, Poland3 76.32 March25.73.0×
WawerMazovia, Poland4 54.71 March18.53.0×
KrefeldNorth Rhine-Westphalia, Germany2 35.33 March11.63.0×
NancyGrand Est, France2 35.03 March11.53.0×
DieppeNormandy, France1 25.72 March8.63.0×
ŁaskŁódź Voivodeship, Poland2 95.01 March32.52.9×
MielecSubcarpathia, Poland3 67.71 March23.02.9×
OstravaMoravian-Silesian Region, Czechia3 63.12 March21.42.9×
TřinecMoravian-Silesian Region, Czechia3 56.42 March19.32.9×
PřerovOlomouc Region, Czechia2 53.23 March18.52.9×
KrapkowiceOpole Voivodeship, Poland2 52.72 March17.92.9×
MalackyBratislava Region, Slovakia2 46.03 March16.12.9×
BogatyniaLower Silesia, Poland2 39.32 March13.42.9×
Sainte-Geneviève-des-BoisÎle-de-France, France1 37.62 March12.92.9×
CoulommiersÎle-de-France, France1 34.42 March11.72.9×
TrierRheinland-Pfalz, Germany1 32.13 March11.12.9×
FilderstadtBaden-Wurttemberg, Germany1 31.73 March10.82.9×
GardanneProvence-Alpes-Côte d'Azur, France3 31.23 March10.82.9×
TraunreutBavaria, Germany1 30.83 March10.82.9×
SaarbrückenSaarland, Germany1 28.03 March9.82.9×
BadenLower Austria, Austria1 26.32 March9.12.9×
Le HavreNormandy, France1 25.02 March8.62.9×
KaliszGreater Poland, Poland2 90.11 March32.62.8×
KłodzkoLower Silesia, Poland3 85.92 March30.22.8×
HavířovMoravian-Silesian Region, Czechia3 64.02 March23.22.8×
OpavaMoravian-Silesian Region, Czechia3 51.62 March18.72.8×
LudwigsburgBaden-Wurttemberg, Germany1 31.63 March11.12.8×
KehlBaden-Wurttemberg, Germany2 30.73 March11.12.8×
KarlsruheBaden-Wurttemberg, Germany2 29.53 March10.52.8×
RouenNormandy, France1 27.82 March9.82.8×
MetzGrand Est, France1 27.63 March9.72.8×
KelheimBavaria, Germany1 27.53 March10.02.8×
HattingenNorth Rhine-Westphalia, Germany1 27.53 March9.92.8×
AmiensHauts-de-France, France1 26.52 March9.32.8×
DębicaSubcarpathia, Poland3 73.21 March26.82.7×
WrocławLower Silesia, Poland1 65.62 March24.42.7×
JarosławSubcarpathia, Poland2 62.61 March23.22.7×
ZamośćLublin, Poland3 62.328 February23.22.7×
ŽideniceSouth Moravian, Czechia1 45.83 March17.02.7×
SenicaTrnava Region, Slovakia2 43.73 March16.32.7×
KladnoCentral Bohemia, Czechia2 36.22 March13.42.7×
UlmBaden-Wurttemberg, Germany1 34.33 March12.62.7×
IngolstadtBavaria, Germany1 34.13 March12.82.7×
AnnecyAuvergne-Rhône-Alpes, France1 32.93 March12.12.7×
PassauBavaria, Germany1 30.63 March11.42.7×
DuisburgNorth Rhine-Westphalia, Germany1 28.63 March10.72.7×
BéthuneHauts-de-France, France2 27.92 March10.22.7×
OtwockMazovia, Poland1 80.82 March31.22.6×
Novo MestoUrban Municipality of Novo Mesto, Slovenia2 46.53 March18.22.6×
BratislavaBratislava Region, Slovakia1 37.93 March14.52.6×
LiberecLiberec Region, Czechia2 36.12 March14.02.6×
PerchtoldsdorfLower Austria, Austria3 33.72 March13.12.6×
StuttgartBaden-Wurttemberg, Germany2 32.23 March12.32.6×
Czechowice-DziedziceSilesia, Poland1 70.73 March28.32.5×
ŻyrardówMazovia, Poland2 60.82 March24.52.5×
PardubicePardubice Region, Czechia2 43.43 March17.52.5×
KranjUrban Municipality of Kranj, Slovenia3 40.53 March16.52.5×
BrnoSouth Moravian, Czechia2 39.43 March15.62.5×
JihlavaVysocina, Czechia3 39.33 March15.62.5×
České BudějoviceSouth Bohemian Region, Czechia2 35.13 March14.32.5×
ViennaVienna, Austria3 31.72 March12.92.5×
WuppertalNorth Rhine-Westphalia, Germany1 26.03 March10.32.5×
GapProvence-Alpes-Côte d'Azur, France1 25.43 March10.12.5×
VenloLimburg, The Netherlands1 25.23 March10.02.5×
NettetalNorth Rhine-Westphalia, Germany1 25.23 March10.02.5×
RadomMazovia, Poland3 58.028 February24.02.4×
LublinLublin, Poland2 58.01 March24.02.4×
KatowiceSilesia, Poland2 57.92 March24.02.4×
TrebišovKošice Region, Slovakia1 51.64 March21.12.4×
KošiceKošice Region, Slovakia1 50.84 March21.42.4×
HumennéPrešov Region, Slovakia1 50.74 March21.42.4×
Kędzierzyn-KoźleOpole Voivodeship, Poland2 48.31 March20.52.4×
AnconaThe Marches, Italy1 33.73 March14.32.4×
AnsbachBavaria, Germany1 27.53 March11.62.4×
EssenNorth Rhine-Westphalia, Germany1 25.23 March10.42.4×
WarsteinNorth Rhine-Westphalia, Germany1 25.11 March10.42.4×
KrakówLesser Poland, Poland2 62.83 March27.32.3×
ŁódźŁódź Voivodeship, Poland1 55.82 March24.52.3×
Jelenia GóraLower Silesia, Poland2 55.22 March23.52.3×
DěčínÚstí nad Labem Region, Czechia1 50.82 March22.12.3×
TrnavaTrnava Region, Slovakia1 36.43 March15.92.3×
PraguePrague, Czechia1 34.62 March15.12.3×
SpeyerRheinland-Pfalz, Germany1 31.03 March13.52.3×
MödlingLower Austria, Austria1 28.22 March12.42.3×
Bielsko-BialaSilesia, Poland1 70.22 March31.32.2×
BihaćFederation of B&H, Bosnia and Herzegovina1 66.43 March29.82.2×
KutnoŁódź Voivodeship, Poland1 64.92 March28.92.2×
KielceŚwiętokrzyskie, Poland1 53.22 March23.92.2×
BerounCentral Bohemia, Czechia1 43.92 March19.62.2×
ZnojmoSouth Moravian, Czechia2 38.13 March17.12.2×
ŻaryLubusz, Poland2 35.42 March15.92.2×
KomárnoNitra Region, Slovakia1 33.73 March15.32.2×
Devínska Nová VesBratislava Region, Slovakia1 32.73 March14.62.2×
KlosterneuburgLower Austria, Austria2 32.62 March14.52.2×
KadaňÚstí nad Labem Region, Czechia2 31.32 March14.32.2×
Klagenfurt am WörtherseeCarinthia, Austria1 27.82 March12.62.2×
DortmundNorth Rhine-Westphalia, Germany1 27.73 March12.52.2×
DillingenSaarland, Germany1 26.53 March11.82.2×
GreizThuringia, Germany2 25.92 March12.02.2×
WłocławekKujawsko-Pomorskie, Poland2 75.028 February34.92.1×
Jastrzębie ZdrójSilesia, Poland2 59.11 March28.42.1×
NiskoSubcarpathia, Poland1 52.12 March24.42.1×
ČadcaŽilina Region, Slovakia1 42.83 March20.52.1×
ŁukówLublin, Poland1 42.51 March20.52.1×
OlomoucOlomouc Region, Czechia1 42.33 March19.82.1×
Hradec KrálovéHradec Králové Region, Czechia1 40.53 March19.42.1×
BardejovPrešov Region, Slovakia2 37.24 March18.02.1×
SenecBratislava Region, Slovakia1 32.93 March15.72.1×
PezinokBratislava Region, Slovakia1 32.63 March15.52.1×
Zielona GóraLubusz, Poland1 32.22 March15.22.1×
SninaPrešov Region, Slovakia1 27.74 March13.12.1×
SaalfeldThuringia, Germany2 26.22 March12.32.1×
SteyrUpper Austria, Austria1 25.72 March12.12.1×
LęborkPomerania, Poland1 46.028 February22.52.0×
PrešovPrešov Region, Slovakia1 45.44 March22.42.0×
TrenčínTrenčín Region, Slovakia1 39.43 March19.42.0×
MostÚstí nad Labem Region, Czechia1 34.22 March17.12.0×
HagenNorth Rhine-Westphalia, Germany1 25.43 March12.62.0×
WeidenBavaria, Germany1 25.23 March12.62.0×

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 France and Germany

Number 11 of 54 episodes in France and Germany since our records began, by cities reached.

Bars: cities reached; colour: the level of the episode's highest daily reading. All 54.

Use this page

SmogRank, Europe, 28 February to 4 March 2023: 279 cities with PM2.5 at twice their usual or more, 28 February to 4 March 2023, smogrank.com/episodes/2023-02-28-europe (accessed 4 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.