SmogRank / Episodes / France

Western Europe, March 2023

For 4 days, from 4 to 7 March 2023, 119 cities in France, Germany, Spain and 3 more countries had PM2.5 at least twice their usual for the time of year. The worst reading was Bihać, Federation of B&H, Bosnia and Herzegovina: 72.8 µg/m³ on 4 March, about 2.6× its usual 27.8.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached119in 6 countries
Days44 to 7 March 2023
Worst day4 March112 cities counted
Furthest above usual6.9×La Rochelle

Day by day

4 March 112 cities at twice their usual or more
TroyesFontainebleauCoulommiersÉtampesSainte-Geneviève-des-BoisÉpernayParisSarcellesRambouilletReimsDomontChartresNîmesCreilLunelMontpellierToursDreuxBeauvaisSaint-QuentinÉvreuxAmiensLe MansDenainEsch-sur-AlzetteRouenThionvilleArrasDouaiAostaMonsLensPerpignanCharleroiAlençonLuxembourgTournaiMarche-en-FamenneBéthuneLilleNamurRoubaixDieppeAndenneDillingenLisieuxLa GardeAngersRixensartMenenKortrijkWaregemSaarbrückenBrusselsTurinRoeselareZaventemGrimbergenFlémalle-HauteFréjusGentLiègeLochristiLe HavreEvergemMechelenles EscaldesWillebroekAarschotDunkirkMaldegemKoksijdeNiceBeverenHasseltCalaisZwijndrechtAntwerpCaenEupenMonacoGenkHouthalenKapellenStabroekMolAachenHeerlenKaiserslauternVillingen-SchwenningenBaden-BadenBredaJülichNantesTilburgEindhovenCouëronBergheimJüchenBad KreuznachSavonaMönchengladbachBonnVenloRennesVenrayKölnBendorfLeverkusenKrefeldPforzheimDüsseldorfHerrenbergWormsRatingenSolingenGenoaWieslochMainzDuisburgSaint-NazaireWiesbadenHeidelbergLimburg an der LahnWuppertalOberhausenRüsselsheim am MainSaint-MaloEssenFilderstadtStuttgartHattingenCherbourgHattersheimDarmstadtGelsenkirchenLudwigsburgKönigstein im TaunusEschbornLüdenscheidHagenHeilbronnFrankfurt am MainNetphenDortmundSchwerteHanau am MainVannesGroßostheimUnnaGießenAschaffenburgZarautzZaragozaSaint-BrieucMarburg an der LahnLa SpeziaSoestWarsteinLauda-KönigshofenTudelaAalenCalahorraBastiaBermeoLorientWürzburgMarsbergGasteiz / VitoriaFuldaAnsbachKasselBolzanoInnsbruckWitzenhausenStarnbergMeiningenNurembergBambergEisenachGöttingenIngolstadtSuhlCoburgBrestMühlhausenBurgosKelheimErfurtNordhausenSaalfeldWeimarSchwandorf in BayernJenaTraunreutWeidenMarktredwitzPalenciaSaalfelden am Steinernen MeerGreizWeißenfelsValladolidPesaroHalle (Saale)SokolovSamaAltenburgAvilésLeónPassauBitterfeld-WolfenJesiKoperFalconara MarittimaPilsenAnconaKadaňWelsCivitanova MarcheKlagenfurt am WörtherseeTraunMostLitvínovAnsfeldenLinzRijekaLjubljanaSteyrTepliceBerounKladnoČeské BudějoviceÚstí nad LabemWolfsbergPragueAmstettenDěčínTrbovljeViveiroLugoCeljeGrazMladá BoleslavMariborNarónSankt PöltenBogatyniaOurenseFerrolLiberecPtujLalínJihlavaA CoruñaArteixoSantiago de CompostelaZnojmoPardubiceŽďár nad SázavouBadenSan SeveroPerchtoldsdorfHradec KrálovéMödlingKlosterneuburgPontevedraJelenia GóraViennaKoprivnicaBrnoŽideniceDevínska Nová VesMalackyBratislavaKłodzkoHodonínBanja LukaPezinokSenecSenicaOlomoucKroměřížTrnavaPřerovWrocławSereďNysaZlínHraniceMostarNovo MestoKranjLampertheimLudwigshafen am RheinBensheimVigoBurghausenKehlMannheimNeuwiedSpeyerIzegemNancyUlmAugsburgKoblenzBihaćLunévilleKarlsruheGapMetzMontbéliardStrasbourgBiberach an der RißMunichNeu-UlmOviedoMelunTrierTübingenCannesGardanneMulhouseOrléansReutlingenFos-sur-MerHaguenauSallanchesEggenstein-LeopoldshafenJoué-lès-ToursManosqueMontargisGijónAnnecyArlesAvignonMont-de-MarsanForbachLyonVerdunVitrollesAmorebietaKempten (Allgäu)AuxerreDaxÉpinalFriedrichshafenMüllheimGivorsBloisMarseilleKonstanzLörrachOriaLindauMontceau-les-MinesOlivetSaint-DizierMarignaneLaudio / LlodioMeyzieuRomans-sur-IsèreSalon-de-ProvenceVillefranche-sur-SaôneBilbaoDijonAix-en-ProvenceBourgesChalon-sur-SaôneBesançonMoulinsTarbesFreiburgAngletMâconPérigueuxPoitiersDurangoGrenobleValenceGetxoChâteaurouxMeylanHernaniLa Roche-sur-YonVesoulAnnemasseAurillacLimogesLourdesRodezDonostia / San SebastiánLormontSaint-ÉtiennePauBourg-en-BresseMontaubanToulouseBordeauxMarmandeNiortChambéryAngoulêmeAlbertvilleClermont-FerrandMontluçonSaint-ChamondLons-le-SaunierLa Rochelle
1 Mar2345678910
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

Bourg-en-BresseBourg-en-Bresse, 1 March: 27.6 µg/m³, 3.4× usualBourg-en-Bresse, 2 March: 36.6 µg/m³, 4.5× usualBourg-en-Bresse, 3 March: 51.6 µg/m³, 6.4× usualBourg-en-Bresse, 4 March: 47.2 µg/m³, 5.8× usualBourg-en-Bresse, 5 March: 29.2 µg/m³, 3.6× usualBourg-en-Bresse, 6 March: 27.1 µg/m³, 3.3× usualBourg-en-Bresse, 7 March: 21.8 µg/m³, 2.7× usualBourg-en-Bresse, 8 March: 8.8 µg/m³, 1.1× usualBourg-en-Bresse, 9 March: 5.6 µg/m³, 0.7× usualBourg-en-Bresse, 10 March: 4.7 µg/m³, 0.6× usualMeylanMeylan, 1 March: 26.2 µg/m³, 2.6× usualMeylan, 2 March: 39.3 µg/m³, 3.9× usualMeylan, 3 March: 44.4 µg/m³, 4.4× usualMeylan, 4 March: 50.0 µg/m³, 5.0× usualMeylan, 5 March: 45.7 µg/m³, 4.5× usualMeylan, 6 March: 38.3 µg/m³, 3.8× usualMeylan, 7 March: 20.7 µg/m³, 2.0× usualMeylan, 8 March: 18.7 µg/m³, 1.9× usualMeylan, 9 March: 12.3 µg/m³, 1.2× usualMeylan, 10 March: 4.4 µg/m³, 0.4× usualRomans-sur-IsèreRomans-sur-Isère, 1 March: 29.4 µg/m³, 2.6× usualRomans-sur-Isère, 2 March: 38.8 µg/m³, 3.4× usualRomans-sur-Isère, 3 March: 40.8 µg/m³, 3.6× usualRomans-sur-Isère, 4 March: 48.5 µg/m³, 4.3× usualRomans-sur-Isère, 5 March: 38.2 µg/m³, 3.4× usualRomans-sur-Isère, 6 March: 33.4 µg/m³, 2.9× usualRomans-sur-Isère, 7 March: 29.3 µg/m³, 2.6× usualRomans-sur-Isère, 8 March: 20.6 µg/m³, 1.8× usualRomans-sur-Isère, 9 March: 15.0 µg/m³, 1.3× usualRomans-sur-Isère, 10 March: 6.6 µg/m³, 0.6× usualAlbertvilleAlbertville, 1 March: 30.0 µg/m³, 4.1× usualAlbertville, 2 March: 35.7 µg/m³, 4.8× usualAlbertville, 3 March: 40.2 µg/m³, 5.4× usualAlbertville, 4 March: 48.3 µg/m³, 6.5× usualAlbertville, 5 March: 39.5 µg/m³, 5.3× usualAlbertville, 6 March: 30.2 µg/m³, 4.1× usualAlbertville, 7 March: 14.0 µg/m³, 1.9× usualAlbertville, 8 March: 6.7 µg/m³, 0.9× usualAlbertville, 9 March: 6.3 µg/m³, 0.9× usualAlbertville, 10 March: 5.5 µg/m³, 0.7× usualGrenobleGrenoble, 1 March: 27.4 µg/m³, 2.9× usualGrenoble, 2 March: 35.2 µg/m³, 3.7× usualGrenoble, 3 March: 41.4 µg/m³, 4.3× usualGrenoble, 4 March: 47.1 µg/m³, 4.9× usualGrenoble, 5 March: 41.5 µg/m³, 4.3× usualGrenoble, 6 March: 36.5 µg/m³, 3.8× usualGrenoble, 7 March: 21.2 µg/m³, 2.2× usualGrenoble, 8 March: 16.6 µg/m³, 1.7× usualGrenoble, 9 March: 9.3 µg/m³, 1.0× usualGrenoble, 10 March: 3.0 µg/m³, 0.3× usualMontluçonMontluçon, 1 March: 27.8 µg/m³, 4.0× usualMontluçon, 2 March: 41.2 µg/m³, 6.0× usualMontluçon, 3 March: 42.8 µg/m³, 6.2× usualMontluçon, 4 March: 45.4 µg/m³, 6.6× usualMontluçon, 5 March: 30.4 µg/m³, 4.4× usualMontluçon, 6 March: 25.0 µg/m³, 3.6× usualMontluçon, 7 March: 15.7 µg/m³, 2.3× usualMontluçon, 8 March: 3.3 µg/m³, 0.5× usualMontluçon, 9 March: 5.7 µg/m³, 0.8× usualMontluçon, 10 March: 6.4 µg/m³, 0.9× usualValenceValence, 1 March: 26.8 µg/m³, 2.9× usualValence, 2 March: 34.8 µg/m³, 3.8× usualValence, 3 March: 38.8 µg/m³, 4.3× usualValence, 4 March: 44.8 µg/m³, 4.9× usualValence, 5 March: 34.7 µg/m³, 3.8× usualValence, 6 March: 28.7 µg/m³, 3.2× usualValence, 7 March: 25.7 µg/m³, 2.8× usualValence, 8 March: 18.3 µg/m³, 2.0× usualValence, 9 March: 14.9 µg/m³, 1.6× usualValence, 10 March: 7.5 µg/m³, 0.8× usualAuxerreAuxerre, 1 March: 25.7 µg/m³, 3.1× usualAuxerre, 2 March: 39.3 µg/m³, 4.7× usualAuxerre, 3 March: 44.2 µg/m³, 5.3× usualAuxerre, 4 March: 30.9 µg/m³, 3.7× usualAuxerre, 5 March: 14.3 µg/m³, 1.7× usualAuxerre, 6 March: 16.4 µg/m³, 2.0× usualAuxerre, 7 March: 12.4 µg/m³, 1.5× usualAuxerre, 8 March: 6.4 µg/m³, 0.8× usualAuxerre, 9 March: 6.5 µg/m³, 0.8× usualAuxerre, 10 March: 5.1 µg/m³, 0.6× usualSaint-ÉtienneSaint-Étienne, 1 March: 27.0 µg/m³, 3.4× usualSaint-Étienne, 2 March: 34.0 µg/m³, 4.3× usualSaint-Étienne, 3 March: 38.5 µg/m³, 4.9× usualSaint-Étienne, 4 March: 43.8 µg/m³, 5.5× usualSaint-Étienne, 5 March: 34.3 µg/m³, 4.3× usualSaint-Étienne, 6 March: 30.8 µg/m³, 3.9× usualSaint-Étienne, 7 March: 19.6 µg/m³, 2.5× usualSaint-Étienne, 8 March: 2.9 µg/m³, 0.4× usualSaint-Étienne, 9 March: 3.7 µg/m³, 0.5× usualSaint-Étienne, 10 March: 3.8 µg/m³, 0.5× usualSallanchesSallanches, 1 March: 33.2 µg/m³, 2.6× usualSallanches, 2 March: 42.1 µg/m³, 3.2× usualSallanches, 3 March: 43.2 µg/m³, 3.3× usualSallanches, 4 March: 40.4 µg/m³, 3.1× usualSallanches, 5 March: 40.8 µg/m³, 3.1× usualSallanches, 6 March: 33.0 µg/m³, 2.5× usualSallanches, 7 March: 21.8 µg/m³, 1.7× usualSallanches, 8 March: 12.9 µg/m³, 1.0× usualSallanches, 9 March: 12.0 µg/m³, 0.9× usualSallanches, 10 March: 8.0 µg/m³, 0.6× usualMeyzieuMeyzieu, 1 March: 28.4 µg/m³, 2.9× usualMeyzieu, 2 March: 34.5 µg/m³, 3.5× usualMeyzieu, 3 March: 41.7 µg/m³, 4.2× usualMeyzieu, 4 March: 42.9 µg/m³, 4.3× usualMeyzieu, 5 March: 31.3 µg/m³, 3.2× usualMeyzieu, 6 March: 31.0 µg/m³, 3.1× usualMeyzieu, 7 March: 24.9 µg/m³, 2.5× usualMeyzieu, 8 March: 12.0 µg/m³, 1.2× usualMeyzieu, 9 March: 6.4 µg/m³, 0.6× usualMeyzieu, 10 March: 4.3 µg/m³, 0.4× usualVesoulVesoul, 1 March: 27.0 µg/m³, 3.8× usualVesoul, 2 March: 37.3 µg/m³, 5.2× usualVesoul, 3 March: 42.2 µg/m³, 5.9× usualVesoul, 4 March: 36.6 µg/m³, 5.1× usualVesoul, 5 March: 29.1 µg/m³, 4.0× usualVesoul, 6 March: 15.2 µg/m³, 2.1× usualVesoul, 7 March: 13.9 µg/m³, 1.9× usualVesoul, 8 March: 8.8 µg/m³, 1.2× usualVesoul, 9 March: 4.9 µg/m³, 0.7× usualVesoul, 10 March: 3.9 µg/m³, 0.5× usualSaint-ChamondSaint-Chamond, 1 March: 26.4 µg/m³, 4.3× usualSaint-Chamond, 2 March: 32.5 µg/m³, 5.2× usualSaint-Chamond, 3 March: 35.0 µg/m³, 5.6× usualSaint-Chamond, 4 March: 40.8 µg/m³, 6.6× usualSaint-Chamond, 5 March: 32.0 µg/m³, 5.2× usualSaint-Chamond, 6 March: 25.7 µg/m³, 4.1× usualSaint-Chamond, 7 March: 19.0 µg/m³, 3.1× usualSaint-Chamond, 8 March: 9.5 µg/m³, 1.5× usualSaint-Chamond, 9 March: 4.8 µg/m³, 0.8× usualSaint-Chamond, 10 March: 3.8 µg/m³, 0.6× usualKranjKranj, 1 March: 34.0 µg/m³, 2.1× usualKranj, 2 March: 35.2 µg/m³, 2.1× usualKranj, 3 March: 40.5 µg/m³, 2.5× usualKranj, 4 March: 34.9 µg/m³, 2.1× usualKranj, 5 March: 32.6 µg/m³, 2.0× usualKranj, 6 March: 36.8 µg/m³, 2.2× usualKranj, 7 March: 27.4 µg/m³, 1.7× usualKranj, 8 March: 23.2 µg/m³, 1.4× usualKranj, 9 March: 19.5 µg/m³, 1.2× usualKranj, 10 March: 18.7 µg/m³, 1.1× usualVillefranche-sur-Sa…Villefranche-sur-Saône, 1 March: 26.3 µg/m³, 2.9× usualVillefranche-sur-Saône, 2 March: 36.8 µg/m³, 4.0× usualVillefranche-sur-Saône, 3 March: 40.0 µg/m³, 4.3× usualVillefranche-sur-Saône, 4 March: 40.0 µg/m³, 4.3× usualVillefranche-sur-Saône, 5 March: 29.8 µg/m³, 3.2× usualVillefranche-sur-Saône, 6 March: 23.0 µg/m³, 2.5× usualVillefranche-sur-Saône, 7 March: 22.8 µg/m³, 2.5× usualVillefranche-sur-Saône, 8 March: 15.4 µg/m³, 1.7× usualVillefranche-sur-Saône, 9 March: 6.6 µg/m³, 0.7× usualVillefranche-sur-Saône, 10 March: 4.5 µg/m³, 0.5× usualChâteaurouxChâteauroux, 1 March: 21.1 µg/m³, 2.7× usualChâteauroux, 2 March: 39.1 µg/m³, 4.9× usualChâteauroux, 3 March: 52.8 µg/m³, 6.7× usualChâteauroux, 4 March: 39.2 µg/m³, 5.0× usualChâteauroux, 5 March: 26.5 µg/m³, 3.4× usualChâteauroux, 6 March: 22.7 µg/m³, 2.9× usualChâteauroux, 7 March: 15.2 µg/m³, 1.9× usualChâteauroux, 8 March: 5.7 µg/m³, 0.7× usualChâteauroux, 9 March: 8.4 µg/m³, 1.1× usualChâteauroux, 10 March: 8.8 µg/m³, 1.1× usualNiortNiort, 1 March: 21.2 µg/m³, 2.9× usualNiort, 2 March: 33.1 µg/m³, 4.5× usualNiort, 3 March: 52.7 µg/m³, 7.1× usualNiort, 4 March: 45.5 µg/m³, 6.1× usualNiort, 5 March: 22.6 µg/m³, 3.1× usualNiort, 6 March: 15.6 µg/m³, 2.1× usualNiort, 7 March: 15.4 µg/m³, 2.1× usualNiort, 8 March: 8.6 µg/m³, 1.2× usualNiort, 9 March: 13.8 µg/m³, 1.9× usualNiort, 10 March: 12.8 µg/m³, 1.7× usualLa Roche-sur-YonLa Roche-sur-Yon, 1 March: 20.8 µg/m³, 3.0× usualLa Roche-sur-Yon, 2 March: 34.6 µg/m³, 4.9× usualLa Roche-sur-Yon, 3 March: 52.3 µg/m³, 7.5× usualLa Roche-sur-Yon, 4 March: 35.8 µg/m³, 5.1× usualLa Roche-sur-Yon, 5 March: 16.8 µg/m³, 2.4× usualLa Roche-sur-Yon, 6 March: 15.7 µg/m³, 2.2× usualLa Roche-sur-Yon, 7 March: 14.7 µg/m³, 2.1× usualLa Roche-sur-Yon, 8 March: 9.3 µg/m³, 1.3× usualLa Roche-sur-Yon, 9 March: 15.2 µg/m³, 2.2× usualLa Roche-sur-Yon, 10 March: 13.0 µg/m³, 1.9× usualMoulinsMoulins, 1 March: 23.7 µg/m³, 2.7× usualMoulins, 2 March: 35.8 µg/m³, 4.1× usualMoulins, 3 March: 51.4 µg/m³, 5.9× usualMoulins, 4 March: 40.4 µg/m³, 4.6× usualMoulins, 5 March: 28.3 µg/m³, 3.3× usualMoulins, 6 March: 28.5 µg/m³, 3.3× usualMoulins, 7 March: 21.2 µg/m³, 2.4× usualMoulins, 8 March: 6.9 µg/m³, 0.8× usualMoulins, 9 March: 5.7 µg/m³, 0.7× usualMoulins, 10 March: 6.2 µg/m³, 0.7× usualBordeauxBordeaux, 1 March: 20.5 µg/m³, 2.4× usualBordeaux, 2 March: 34.7 µg/m³, 4.0× usualBordeaux, 3 March: 44.4 µg/m³, 5.1× usualBordeaux, 4 March: 50.9 µg/m³, 5.9× usualBordeaux, 5 March: 36.3 µg/m³, 4.2× usualBordeaux, 6 March: 26.0 µg/m³, 3.0× usualBordeaux, 7 March: 31.0 µg/m³, 3.6× usualBordeaux, 8 March: 8.1 µg/m³, 0.9× usualBordeaux, 9 March: 10.0 µg/m³, 1.1× usualBordeaux, 10 March: 11.0 µg/m³, 1.3× usualAngoulêmeAngoulême, 1 March: 22.2 µg/m³, 3.4× usualAngoulême, 2 March: 38.6 µg/m³, 5.8× usualAngoulême, 3 March: 49.5 µg/m³, 7.5× usualAngoulême, 4 March: 42.5 µg/m³, 6.4× usualAngoulême, 5 March: 27.4 µg/m³, 4.2× usualAngoulême, 6 March: 25.2 µg/m³, 3.8× usualAngoulême, 7 March: 19.0 µg/m³, 2.9× usualAngoulême, 8 March: 8.6 µg/m³, 1.3× usualAngoulême, 9 March: 13.0 µg/m³, 2.0× usualAngoulême, 10 March: 12.6 µg/m³, 1.9× usualChambéryChambéry, 1 March: 24.7 µg/m³, 3.2× usualChambéry, 2 March: 29.7 µg/m³, 3.8× usualChambéry, 3 March: 43.2 µg/m³, 5.5× usualChambéry, 4 March: 49.0 µg/m³, 6.3× usualChambéry, 5 March: 40.4 µg/m³, 5.2× usualChambéry, 6 March: 33.9 µg/m³, 4.3× usualChambéry, 7 March: 16.6 µg/m³, 2.1× usualChambéry, 8 March: 8.5 µg/m³, 1.1× usualChambéry, 9 March: 6.5 µg/m³, 0.8× usualChambéry, 10 March: 4.2 µg/m³, 0.5× usualAnnemasseAnnemasse, 1 March: 24.0 µg/m³, 2.7× usualAnnemasse, 2 March: 32.1 µg/m³, 3.6× usualAnnemasse, 3 March: 48.4 µg/m³, 5.5× usualAnnemasse, 4 March: 46.4 µg/m³, 5.3× usualAnnemasse, 5 March: 37.0 µg/m³, 4.2× usualAnnemasse, 6 March: 30.8 µg/m³, 3.5× usualAnnemasse, 7 March: 17.1 µg/m³, 1.9× usualAnnemasse, 8 March: 6.3 µg/m³, 0.7× usualAnnemasse, 9 March: 3.1 µg/m³, 0.4× usualAnnemasse, 10 March: 2.4 µg/m³, 0.3× usualLa RochelleLa Rochelle, 1 March: 18.6 µg/m³, 3.3× usualLa Rochelle, 2 March: 31.9 µg/m³, 5.7× usualLa Rochelle, 3 March: 48.2 µg/m³, 8.6× usualLa Rochelle, 4 March: 38.5 µg/m³, 6.9× usualLa Rochelle, 5 March: 19.7 µg/m³, 3.5× usualLa Rochelle, 6 March: 13.5 µg/m³, 2.4× usualLa Rochelle, 7 March: 12.6 µg/m³, 2.3× usualLa Rochelle, 8 March: 8.3 µg/m³, 1.5× usualLa Rochelle, 9 March: 10.8 µg/m³, 1.9× usualLa Rochelle, 10 March: 13.4 µg/m³, 2.4× usualBourgesBourges, 1 March: 23.0 µg/m³, 2.8× usualBourges, 2 March: 37.1 µg/m³, 4.5× usualBourges, 3 March: 48.1 µg/m³, 5.8× usualBourges, 4 March: 37.5 µg/m³, 4.5× usualBourges, 5 March: 17.9 µg/m³, 2.2× usualBourges, 6 March: 22.6 µg/m³, 2.7× usualBourges, 7 March: 14.4 µg/m³, 1.7× usualBourges, 8 March: 5.6 µg/m³, 0.7× usualBourges, 9 March: 7.2 µg/m³, 0.9× usualBourges, 10 March: 7.1 µg/m³, 0.9× usualLimogesLimoges, 1 March: 20.7 µg/m³, 2.7× usualLimoges, 2 March: 37.7 µg/m³, 4.8× usualLimoges, 3 March: 47.2 µg/m³, 6.1× usualLimoges, 4 March: 41.5 µg/m³, 5.3× usualLimoges, 5 March: 27.7 µg/m³, 3.6× usualLimoges, 6 March: 27.5 µg/m³, 3.5× usualLimoges, 7 March: 17.6 µg/m³, 2.3× usualLimoges, 8 March: 6.7 µg/m³, 0.9× usualLimoges, 9 March: 9.6 µg/m³, 1.2× usualLimoges, 10 March: 8.8 µg/m³, 1.1× usualNovo MestoNovo Mesto, 1 March: 34.3 µg/m³, 1.9× usualNovo Mesto, 2 March: 41.2 µg/m³, 2.3× usualNovo Mesto, 3 March: 46.5 µg/m³, 2.6× usualNovo Mesto, 4 March: 36.2 µg/m³, 2.0× usualNovo Mesto, 5 March: 45.6 µg/m³, 2.6× usualNovo Mesto, 6 March: 41.1 µg/m³, 2.3× usualNovo Mesto, 7 March: 26.2 µg/m³, 1.5× usualNovo Mesto, 8 March: 11.6 µg/m³, 0.7× usualNovo Mesto, 9 March: 10.1 µg/m³, 0.6× usualNovo Mesto, 10 March: 27.9 µg/m³, 1.6× usualPoitiersPoitiers, 1 March: 19.2 µg/m³, 2.4× usualPoitiers, 2 March: 31.8 µg/m³, 4.0× usualPoitiers, 3 March: 46.0 µg/m³, 5.8× usualPoitiers, 4 March: 37.4 µg/m³, 4.7× usualPoitiers, 5 March: 20.8 µg/m³, 2.6× usualPoitiers, 6 March: 16.9 µg/m³, 2.1× usualPoitiers, 7 March: 15.6 µg/m³, 2.0× usualPoitiers, 8 March: 6.8 µg/m³, 0.9× usualPoitiers, 9 March: 10.5 µg/m³, 1.3× usualPoitiers, 10 March: 10.2 µg/m³, 1.3× usualMulhouseMulhouse, 1 March: 21.7 µg/m³, 2.0× usualMulhouse, 2 March: 32.4 µg/m³, 2.9× usualMulhouse, 3 March: 45.7 µg/m³, 4.2× usualMulhouse, 4 March: 32.5 µg/m³, 3.0× usualMulhouse, 5 March: 25.8 µg/m³, 2.3× usualMulhouse, 6 March: 17.6 µg/m³, 1.6× usualMulhouse, 7 March: 12.7 µg/m³, 1.2× usualMulhouse, 8 March: 10.3 µg/m³, 0.9× usualMulhouse, 9 March: 3.5 µg/m³, 0.3× usualMulhouse, 10 March: 2.6 µg/m³, 0.2× usualLörrachLörrach, 1 March: 24.0 µg/m³, 2.7× usualLörrach, 2 March: 32.3 µg/m³, 3.6× usualLörrach, 3 March: 45.3 µg/m³, 5.0× usualLörrach, 4 March: 34.3 µg/m³, 3.8× usualLörrach, 5 March: 23.6 µg/m³, 2.6× usualLörrach, 6 March: 11.9 µg/m³, 1.3× usualLörrach, 7 March: 13.3 µg/m³, 1.5× usualLörrach, 8 March: 8.1 µg/m³, 0.9× usualLörrach, 9 March: 2.4 µg/m³, 0.3× usualLörrach, 10 March: 2.3 µg/m³, 0.3× usualPérigueuxPérigueux, 1 March: 20.8 µg/m³, 2.6× usualPérigueux, 2 March: 35.3 µg/m³, 4.5× usualPérigueux, 3 March: 45.2 µg/m³, 5.7× usualPérigueux, 4 March: 37.1 µg/m³, 4.7× usualPérigueux, 5 March: 32.1 µg/m³, 4.1× usualPérigueux, 6 March: 23.4 µg/m³, 3.0× usualPérigueux, 7 March: 19.1 µg/m³, 2.4× usualPérigueux, 8 March: 8.2 µg/m³, 1.0× usualPérigueux, 9 March: 9.4 µg/m³, 1.2× usualPérigueux, 10 March: 8.9 µg/m³, 1.1× usualOrléansOrléans, 1 March: 23.3 µg/m³, 2.3× usualOrléans, 2 March: 39.3 µg/m³, 3.9× usualOrléans, 3 March: 45.0 µg/m³, 4.5× usualOrléans, 4 March: 30.4 µg/m³, 3.0× usualOrléans, 5 March: 19.9 µg/m³, 2.0× usualOrléans, 6 March: 27.0 µg/m³, 2.7× usualOrléans, 7 March: 17.7 µg/m³, 1.8× usualOrléans, 8 March: 6.0 µg/m³, 0.6× usualOrléans, 9 March: 7.6 µg/m³, 0.8× usualOrléans, 10 March: 6.9 µg/m³, 0.7× usualJoué-lès-ToursJoué-lès-Tours, 1 March: 19.0 µg/m³, 2.3× usualJoué-lès-Tours, 2 March: 32.6 µg/m³, 3.9× usualJoué-lès-Tours, 3 March: 44.8 µg/m³, 5.3× usualJoué-lès-Tours, 4 March: 26.6 µg/m³, 3.2× usualJoué-lès-Tours, 5 March: 17.1 µg/m³, 2.0× usualJoué-lès-Tours, 6 March: 17.9 µg/m³, 2.1× usualJoué-lès-Tours, 7 March: 14.0 µg/m³, 1.7× usualJoué-lès-Tours, 8 March: 5.8 µg/m³, 0.7× usualJoué-lès-Tours, 9 March: 8.1 µg/m³, 1.0× usualJoué-lès-Tours, 10 March: 7.2 µg/m³, 0.9× usualClermont-FerrandClermont-Ferrand, 1 March: 21.8 µg/m³, 3.4× usualClermont-Ferrand, 2 March: 30.3 µg/m³, 4.7× usualClermont-Ferrand, 3 March: 38.3 µg/m³, 5.9× usualClermont-Ferrand, 4 March: 43.2 µg/m³, 6.6× usualClermont-Ferrand, 5 March: 36.4 µg/m³, 5.6× usualClermont-Ferrand, 6 March: 40.4 µg/m³, 6.2× usualClermont-Ferrand, 7 March: 16.6 µg/m³, 2.6× usualClermont-Ferrand, 8 March: 5.0 µg/m³, 0.8× usualClermont-Ferrand, 9 March: 5.5 µg/m³, 0.8× usualClermont-Ferrand, 10 March: 5.3 µg/m³, 0.8× usualMontbéliardMontbéliard, 1 March: 20.7 µg/m³, 1.7× usualMontbéliard, 2 March: 29.7 µg/m³, 2.4× usualMontbéliard, 3 March: 43.2 µg/m³, 3.5× usualMontbéliard, 4 March: 32.8 µg/m³, 2.7× usualMontbéliard, 5 March: 26.0 µg/m³, 2.1× usualMontbéliard, 6 March: 16.5 µg/m³, 1.3× usualMontbéliard, 7 March: 11.0 µg/m³, 0.9× usualMontbéliard, 8 March: 13.3 µg/m³, 1.1× usualMontbéliard, 9 March: no readingMontbéliard, 10 March: no readingLormontLormont, 1 March: 15.1 µg/m³, 2.0× usualLormont, 2 March: 30.0 µg/m³, 3.9× usualLormont, 3 March: 35.9 µg/m³, 4.7× usualLormont, 4 March: 42.2 µg/m³, 5.5× usualLormont, 5 March: 27.2 µg/m³, 3.5× usualLormont, 6 March: 22.3 µg/m³, 2.9× usualLormont, 7 March: 17.2 µg/m³, 2.2× usualLormont, 8 March: 5.1 µg/m³, 0.7× usualLormont, 9 March: 6.1 µg/m³, 0.8× usualLormont, 10 March: 7.0 µg/m³, 0.9× usualOlivetOlivet, 1 March: 20.5 µg/m³, 3.0× usualOlivet, 2 March: 34.6 µg/m³, 5.0× usualOlivet, 3 March: 41.7 µg/m³, 6.0× usualOlivet, 4 March: 27.6 µg/m³, 4.0× usualOlivet, 5 March: 18.6 µg/m³, 2.7× usualOlivet, 6 March: 23.5 µg/m³, 3.4× usualOlivet, 7 March: 12.2 µg/m³, 1.8× usualOlivet, 8 March: 4.6 µg/m³, 0.7× usualOlivet, 9 March: 6.5 µg/m³, 0.9× usualOlivet, 10 March: 5.0 µg/m³, 0.7× usualMontaubanMontauban, 1 March: 20.5 µg/m³, 2.9× usualMontauban, 2 March: 26.4 µg/m³, 3.7× usualMontauban, 3 March: 35.5 µg/m³, 5.0× usualMontauban, 4 March: 41.3 µg/m³, 5.8× usualMontauban, 5 March: 40.3 µg/m³, 5.7× usualMontauban, 6 March: 37.7 µg/m³, 5.3× usualMontauban, 7 March: 30.5 µg/m³, 4.3× usualMontauban, 8 March: 13.0 µg/m³, 1.8× usualMontauban, 9 March: 6.4 µg/m³, 0.9× usualMontauban, 10 March: 8.0 µg/m³, 1.1× usualBesançonBesançon, 1 March: 21.9 µg/m³, 3.0× usualBesançon, 2 March: 32.8 µg/m³, 4.4× usualBesançon, 3 March: 41.2 µg/m³, 5.6× usualBesançon, 4 March: 34.0 µg/m³, 4.6× usualBesançon, 5 March: 24.7 µg/m³, 3.3× usualBesançon, 6 March: 15.5 µg/m³, 2.1× usualBesançon, 7 March: 14.2 µg/m³, 1.9× usualBesançon, 8 March: 8.1 µg/m³, 1.1× usualBesançon, 9 March: 2.0 µg/m³, 0.3× usualBesançon, 10 March: 3.1 µg/m³, 0.4× usualFriedrichshafenFriedrichshafen, 1 March: 22.0 µg/m³, 2.0× usualFriedrichshafen, 2 March: 30.0 µg/m³, 2.7× usualFriedrichshafen, 3 March: 37.3 µg/m³, 3.4× usualFriedrichshafen, 4 March: 40.3 µg/m³, 3.7× usualFriedrichshafen, 5 March: 24.0 µg/m³, 2.2× usualFriedrichshafen, 6 March: 13.1 µg/m³, 1.2× usualFriedrichshafen, 7 March: 12.1 µg/m³, 1.1× usualFriedrichshafen, 8 March: 12.3 µg/m³, 1.1× usualFriedrichshafen, 9 March: 2.8 µg/m³, 0.3× usualFriedrichshafen, 10 March: 2.7 µg/m³, 0.2× usualStrasbourgStrasbourg, 1 March: 22.3 µg/m³, 1.9× usualStrasbourg, 2 March: 31.9 µg/m³, 2.7× usualStrasbourg, 3 March: 40.1 µg/m³, 3.4× usualStrasbourg, 4 March: 31.4 µg/m³, 2.7× usualStrasbourg, 5 March: 26.0 µg/m³, 2.2× usualStrasbourg, 6 March: 18.9 µg/m³, 1.6× usualStrasbourg, 7 March: 12.2 µg/m³, 1.0× usualStrasbourg, 8 March: 8.7 µg/m³, 0.7× usualStrasbourg, 9 March: 3.5 µg/m³, 0.3× usualStrasbourg, 10 March: 2.1 µg/m³, 0.2× usualBloisBlois, 1 March: 17.3 µg/m³, 2.4× usualBlois, 2 March: 27.9 µg/m³, 3.9× usualBlois, 3 March: 40.1 µg/m³, 5.6× usualBlois, 4 March: 27.0 µg/m³, 3.8× usualBlois, 5 March: 14.6 µg/m³, 2.1× usualBlois, 6 March: 15.7 µg/m³, 2.2× usualBlois, 7 March: 11.6 µg/m³, 1.6× usualBlois, 8 March: 4.2 µg/m³, 0.6× usualBlois, 9 March: 5.9 µg/m³, 0.8× usualBlois, 10 March: 5.2 µg/m³, 0.7× usualFreiburgFreiburg, 1 March: 24.1 µg/m³, 3.1× usualFreiburg, 2 March: 32.3 µg/m³, 4.2× usualFreiburg, 3 March: 39.7 µg/m³, 5.2× usualFreiburg, 4 March: 35.6 µg/m³, 4.6× usualFreiburg, 5 March: 20.4 µg/m³, 2.6× usualFreiburg, 6 March: 16.2 µg/m³, 2.1× usualFreiburg, 7 March: 16.4 µg/m³, 2.1× usualFreiburg, 8 March: 8.0 µg/m³, 1.0× usualFreiburg, 9 March: 2.9 µg/m³, 0.4× usualFreiburg, 10 March: 1.9 µg/m³, 0.2× usualMontargisMontargis, 1 March: 19.0 µg/m³, 2.3× usualMontargis, 2 March: 33.6 µg/m³, 4.1× usualMontargis, 3 March: 39.2 µg/m³, 4.8× usualMontargis, 4 March: 25.7 µg/m³, 3.2× usualMontargis, 5 March: 15.5 µg/m³, 1.9× usualMontargis, 6 March: 17.9 µg/m³, 2.2× usualMontargis, 7 March: 11.6 µg/m³, 1.4× usualMontargis, 8 March: 4.1 µg/m³, 0.5× usualMontargis, 9 March: 5.5 µg/m³, 0.7× usualMontargis, 10 March: 4.3 µg/m³, 0.5× usualLunévilleLunéville, 1 March: 19.4 µg/m³, 1.7× usualLunéville, 2 March: 28.2 µg/m³, 2.4× usualLunéville, 3 March: 39.2 µg/m³, 3.4× usualLunéville, 4 March: 30.1 µg/m³, 2.6× usualLunéville, 5 March: 17.6 µg/m³, 1.5× usualLunéville, 6 March: 16.9 µg/m³, 1.5× usualLunéville, 7 March: 11.3 µg/m³, 1.0× usualLunéville, 8 March: 8.0 µg/m³, 0.7× usualLunéville, 9 March: 3.5 µg/m³, 0.3× usualLunéville, 10 March: 1.6 µg/m³, 0.1× usualKonstanzKonstanz, 1 March: 21.7 µg/m³, 2.1× usualKonstanz, 2 March: 27.3 µg/m³, 2.7× usualKonstanz, 3 March: 34.3 µg/m³, 3.4× usualKonstanz, 4 March: 39.1 µg/m³, 3.8× usualKonstanz, 5 March: 18.8 µg/m³, 1.8× usualKonstanz, 6 March: 10.7 µg/m³, 1.0× usualKonstanz, 7 March: 11.5 µg/m³, 1.1× usualKonstanz, 8 March: 9.0 µg/m³, 0.9× usualKonstanz, 9 March: 2.5 µg/m³, 0.2× usualKonstanz, 10 March: 2.0 µg/m³, 0.2× usualLindauLindau, 1 March: 18.1 µg/m³, 1.8× usualLindau, 2 March: 27.2 µg/m³, 2.7× usualLindau, 3 March: 37.8 µg/m³, 3.8× usualLindau, 4 March: 38.8 µg/m³, 3.9× usualLindau, 5 March: 27.3 µg/m³, 2.8× usualLindau, 6 March: 14.0 µg/m³, 1.4× usualLindau, 7 March: 12.8 µg/m³, 1.3× usualLindau, 8 March: 13.7 µg/m³, 1.4× usualLindau, 9 March: 3.9 µg/m³, 0.4× usualLindau, 10 March: 2.8 µg/m³, 0.3× usualReutlingenReutlingen, 1 March: 22.3 µg/m³, 2.2× usualReutlingen, 2 March: 27.8 µg/m³, 2.8× usualReutlingen, 3 March: 38.5 µg/m³, 3.9× usualReutlingen, 4 March: 29.6 µg/m³, 3.0× usualReutlingen, 5 March: 20.7 µg/m³, 2.1× usualReutlingen, 6 March: 13.0 µg/m³, 1.3× usualReutlingen, 7 March: 9.1 µg/m³, 0.9× usualReutlingen, 8 March: 6.3 µg/m³, 0.6× usualReutlingen, 9 March: 2.9 µg/m³, 0.3× usualReutlingen, 10 March: 1.6 µg/m³, 0.2× usualMüllheimMüllheim, 1 March: 21.8 µg/m³, 2.6× usualMüllheim, 2 March: 30.3 µg/m³, 3.6× usualMüllheim, 3 March: 37.8 µg/m³, 4.4× usualMüllheim, 4 March: 31.5 µg/m³, 3.7× usualMüllheim, 5 March: 18.8 µg/m³, 2.2× usualMüllheim, 6 March: 11.9 µg/m³, 1.4× usualMüllheim, 7 March: 11.6 µg/m³, 1.4× usualMüllheim, 8 March: 6.6 µg/m³, 0.8× usualMüllheim, 9 March: 2.6 µg/m³, 0.3× usualMüllheim, 10 March: 1.8 µg/m³, 0.2× usualLons-le-SaunierLons-le-Saunier, 1 March: 23.9 µg/m³, 4.8× usualLons-le-Saunier, 2 March: 29.2 µg/m³, 5.8× usualLons-le-Saunier, 3 March: 37.8 µg/m³, 7.6× usualLons-le-Saunier, 4 March: 34.0 µg/m³, 6.8× usualLons-le-Saunier, 5 March: 28.6 µg/m³, 5.7× usualLons-le-Saunier, 6 March: 14.8 µg/m³, 3.0× usualLons-le-Saunier, 7 March: 13.6 µg/m³, 2.7× usualLons-le-Saunier, 8 March: 6.7 µg/m³, 1.3× usualLons-le-Saunier, 9 March: 4.1 µg/m³, 0.8× usualLons-le-Saunier, 10 March: 4.4 µg/m³, 0.9× usualMarmandeMarmande, 1 March: 14.0 µg/m³, 2.2× usualMarmande, 2 March: 29.0 µg/m³, 4.5× usualMarmande, 3 March: 33.7 µg/m³, 5.3× usualMarmande, 4 March: 37.8 µg/m³, 5.9× usualMarmande, 5 March: 27.4 µg/m³, 4.3× usualMarmande, 6 March: 22.6 µg/m³, 3.5× usualMarmande, 7 March: 26.8 µg/m³, 4.2× usualMarmande, 8 March: 7.7 µg/m³, 1.2× usualMarmande, 9 March: 5.3 µg/m³, 0.8× usualMarmande, 10 March: 6.0 µg/m³, 0.9× usualMarignaneMarignane, 1 March: 24.5 µg/m³, 2.8× usualMarignane, 2 March: 31.3 µg/m³, 3.5× usualMarignane, 3 March: 34.8 µg/m³, 3.9× usualMarignane, 4 March: 37.3 µg/m³, 4.2× usualMarignane, 5 March: 33.9 µg/m³, 3.8× usualMarignane, 6 March: 30.0 µg/m³, 3.4× usualMarignane, 7 March: 24.6 µg/m³, 2.8× usualMarignane, 8 March: 23.7 µg/m³, 2.7× usualMarignane, 9 March: 15.1 µg/m³, 1.7× usualMarignane, 10 March: 7.2 µg/m³, 0.8× usualHernaniHernani, 1 March: 15.0 µg/m³, 2.1× usualHernani, 2 March: 25.6 µg/m³, 3.5× usualHernani, 3 March: 20.6 µg/m³, 2.8× usualHernani, 4 March: 32.0 µg/m³, 4.4× usualHernani, 5 March: 37.2 µg/m³, 5.1× usualHernani, 6 March: 25.1 µg/m³, 3.4× usualHernani, 7 March: 12.3 µg/m³, 1.7× usualHernani, 8 March: 6.3 µg/m³, 0.9× usualHernani, 9 March: 7.6 µg/m³, 1.0× usualHernani, 10 March: 10.6 µg/m³, 1.5× usualBihaćBihać, 1 March: 18.0 µg/m³, 0.6× usualBihać, 2 March: 42.9 µg/m³, 1.5× usualBihać, 3 March: 66.4 µg/m³, 2.4× usualBihać, 4 March: 72.8 µg/m³, 2.6× usualBihać, 5 March: 68.3 µg/m³, 2.5× usualBihać, 6 March: 40.0 µg/m³, 1.4× usualBihać, 7 March: 15.6 µg/m³, 0.6× usualBihać, 8 March: 6.0 µg/m³, 0.2× usualBihać, 9 March: 4.3 µg/m³, 0.2× usualBihać, 10 March: 8.3 µg/m³, 0.3× usualToulouseToulouse, 1 March: 17.7 µg/m³, 2.4× usualToulouse, 2 March: 22.2 µg/m³, 3.0× usualToulouse, 3 March: 33.6 µg/m³, 4.5× usualToulouse, 4 March: 42.9 µg/m³, 5.8× usualToulouse, 5 March: 38.3 µg/m³, 5.2× usualToulouse, 6 March: 32.2 µg/m³, 4.4× usualToulouse, 7 March: 27.8 µg/m³, 3.8× usualToulouse, 8 March: 9.4 µg/m³, 1.3× usualToulouse, 9 March: 5.8 µg/m³, 0.8× usualToulouse, 10 March: 7.2 µg/m³, 1.0× usualKoblenzKoblenz, 1 March: 16.6 µg/m³, 1.4× usualKoblenz, 2 March: 15.1 µg/m³, 1.3× usualKoblenz, 3 March: 42.8 µg/m³, 3.6× usualKoblenz, 4 March: 30.2 µg/m³, 2.5× usualKoblenz, 5 March: 5.9 µg/m³, 0.5× usualKoblenz, 6 March: 15.3 µg/m³, 1.3× usualKoblenz, 7 March: 10.6 µg/m³, 0.9× usualKoblenz, 8 March: 10.3 µg/m³, 0.9× usualKoblenz, 9 March: 7.7 µg/m³, 0.6× usualKoblenz, 10 March: no readingNeuwiedNeuwied, 1 March: 15.1 µg/m³, 1.2× usualNeuwied, 2 March: 16.6 µg/m³, 1.3× usualNeuwied, 3 March: 40.7 µg/m³, 3.1× usualNeuwied, 4 March: 29.6 µg/m³, 2.3× usualNeuwied, 5 March: 4.6 µg/m³, 0.4× usualNeuwied, 6 March: 13.6 µg/m³, 1.0× usualNeuwied, 7 March: 9.2 µg/m³, 0.7× usualNeuwied, 8 March: 14.0 µg/m³, 1.1× usualNeuwied, 9 March: 11.3 µg/m³, 0.9× usualNeuwied, 10 March: 2.8 µg/m³, 0.2× usualTarbesTarbes, 1 March: 16.8 µg/m³, 1.9× usualTarbes, 2 March: 21.9 µg/m³, 2.5× usualTarbes, 3 March: 32.2 µg/m³, 3.7× usualTarbes, 4 March: 40.6 µg/m³, 4.6× usualTarbes, 5 March: 36.9 µg/m³, 4.2× usualTarbes, 6 March: 30.9 µg/m³, 3.5× usualTarbes, 7 March: 21.8 µg/m³, 2.5× usualTarbes, 8 March: 9.8 µg/m³, 1.1× usualTarbes, 9 March: 5.7 µg/m³, 0.6× usualTarbes, 10 March: 6.6 µg/m³, 0.7× usualAnnecyAnnecy, 1 March: 17.3 µg/m³, 1.4× usualAnnecy, 2 March: 24.0 µg/m³, 2.0× usualAnnecy, 3 March: 32.9 µg/m³, 2.7× usualAnnecy, 4 March: 40.5 µg/m³, 3.3× usualAnnecy, 5 March: 36.2 µg/m³, 3.0× usualAnnecy, 6 March: 31.0 µg/m³, 2.6× usualAnnecy, 7 March: 18.7 µg/m³, 1.5× usualAnnecy, 8 March: 10.4 µg/m³, 0.9× usualAnnecy, 9 March: 12.8 µg/m³, 1.1× usualAnnecy, 10 March: 4.3 µg/m³, 0.4× usualPauPau, 1 March: 15.6 µg/m³, 2.3× usualPau, 2 March: 22.5 µg/m³, 3.3× usualPau, 3 March: 33.1 µg/m³, 4.8× usualPau, 4 March: 39.3 µg/m³, 5.7× usualPau, 5 March: 37.1 µg/m³, 5.4× usualPau, 6 March: 29.5 µg/m³, 4.3× usualPau, 7 March: 19.3 µg/m³, 2.8× usualPau, 8 March: 3.7 µg/m³, 0.5× usualPau, 9 March: 4.0 µg/m³, 0.6× usualPau, 10 March: 6.7 µg/m³, 1.0× usual1 Mar2345678910
The 60 cities with the highest readings of 119, 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, France1 48.23 March5.68.6×
Lons-le-SaunierBourgogne-Franche-Comté, France2 37.83 March5.07.6×
AngoulêmeNew Aquitaine, France3 49.53 March6.67.5×
La Roche-sur-YonPays de la Loire, France1 52.33 March7.07.5×
NiortNew Aquitaine, France1 52.73 March7.47.1×
ChâteaurouxCentre-Val de Loire, France2 52.83 March7.96.7×
Clermont-FerrandAuvergne-Rhône-Alpes, France3 43.24 March6.56.6×
Saint-ChamondAuvergne-Rhône-Alpes, France3 40.84 March6.26.6×
MontluçonAuvergne-Rhône-Alpes, France3 45.44 March6.96.6×
AlbertvilleAuvergne-Rhône-Alpes, France3 48.34 March7.46.5×
Bourg-en-BresseAuvergne-Rhône-Alpes, France3 51.63 March8.16.4×
ChambéryAuvergne-Rhône-Alpes, France3 49.04 March7.86.3×
LimogesNew Aquitaine, France3 47.23 March7.86.1×
OlivetCentre-Val de Loire, France1 41.73 March6.96.0×
MoulinsAuvergne-Rhône-Alpes, France3 51.43 March8.75.9×
MarmandeNew Aquitaine, France3 37.84 March6.45.9×
VesoulBourgogne-Franche-Comté, France2 42.23 March7.25.9×
BordeauxNew Aquitaine, France4 50.94 March8.75.9×
PoitiersNew Aquitaine, France1 46.03 March7.95.8×
MontaubanOccitanie, France4 41.34 March7.15.8×
ToulouseOccitanie, France4 42.94 March7.45.8×
BourgesCentre-Val de Loire, France1 48.13 March8.35.8×
PérigueuxNew Aquitaine, France2 45.23 March7.95.7×
PauNew Aquitaine, France3 39.34 March6.95.7×
BloisCentre-Val de Loire, France1 40.13 March7.15.6×
BesançonBourgogne-Franche-Comté, France1 41.23 March7.45.6×
Saint-ÉtienneAuvergne-Rhône-Alpes, France3 43.84 March7.95.5×
Donostia / San SebastiánBasque Country, Spain3 31.44 March5.75.5×
AnnemasseAuvergne-Rhône-Alpes, France3 48.43 March8.85.5×
LormontNew Aquitaine, France2 42.24 March7.75.5×
LourdesOccitanie, France2 30.54 March5.65.4×
RodezOccitanie, France3 30.64 March5.75.4×
Joué-lès-ToursCentre-Val de Loire, France1 44.83 March8.45.3×
AuxerreBourgogne-Franche-Comté, France1 44.23 March8.35.3×
AurillacAuvergne-Rhône-Alpes, France1 26.54 March4.55.3×
MâconBourgogne-Franche-Comté, France1 32.63 March6.35.2×
FreiburgBaden-Wurttemberg, Germany1 39.73 March7.75.2×
HernaniBasque Country, Spain3 37.25 March7.35.1×
LörrachBaden-Wurttemberg, Germany1 45.33 March9.05.0×
Montceau-les-MinesBourgogne-Franche-Comté, France1 36.03 March7.25.0×
Chalon-sur-SaôneBourgogne-Franche-Comté, France1 36.83 March7.45.0×
GetxoBasque Country, Spain1 29.36 March5.95.0×
MeylanAuvergne-Rhône-Alpes, France3 50.04 March10.15.0×
DijonBourgogne-Franche-Comté, France1 30.13 March6.14.9×
ValenceAuvergne-Rhône-Alpes, France4 44.84 March9.14.9×
GrenobleAuvergne-Rhône-Alpes, France3 47.14 March9.64.9×
DurangoBasque Country, Spain3 36.06 March7.44.9×
MontargisCentre-Val de Loire, France1 39.23 March8.14.8×
AngletNew Aquitaine, France1 26.64 March5.74.7×
TarbesOccitanie, France3 40.64 March8.84.6×
ForbachGrand Est, France1 35.23 March7.84.5×
Aix-en-ProvenceProvence-Alpes-Côte d'Azur, France3 34.54 March7.74.5×
VerdunGrand Est, France1 36.63 March8.24.5×
Saint-DizierGrand Est, France1 37.03 March8.34.5×
OrléansCentre-Val de Loire, France2 45.03 March10.14.5×
MüllheimBaden-Wurttemberg, Germany1 37.83 March8.54.4×
BilbaoBasque Country, Spain3 30.16 March6.84.4×
Villefranche-sur-SaôneAuvergne-Rhône-Alpes, France2 40.03 March9.24.3×
Laudio / LlodioBasque Country, Spain3 30.86 March7.14.3×
MeyzieuAuvergne-Rhône-Alpes, France3 42.94 March9.94.3×
Salon-de-ProvenceProvence-Alpes-Côte d'Azur, France4 32.85 March7.64.3×
Kempten (Allgäu)Bavaria, Germany2 36.43 March8.54.3×
Romans-sur-IsèreAuvergne-Rhône-Alpes, France4 48.54 March11.44.3×
MarignaneProvence-Alpes-Côte d'Azur, France3 37.34 March8.94.2×
MulhouseGrand Est, France2 45.73 March11.04.2×
Mont-de-MarsanNew Aquitaine, France2 31.83 March7.84.1×
LindauBavaria, Germany2 38.84 March9.93.9×
OriaBasque Country, Spain2 31.75 March8.13.9×
MelunÎle-de-France, France1 35.03 March9.03.9×
ÉpinalGrand Est, France2 35.53 March9.23.9×
ReutlingenBaden-Wurttemberg, Germany1 38.53 March10.03.9×
KonstanzBaden-Wurttemberg, Germany1 39.14 March10.23.8×
GivorsAuvergne-Rhône-Alpes, France1 27.57 March7.33.8×
MarseilleProvence-Alpes-Côte d'Azur, France4 31.95 March8.53.8×
DaxNew Aquitaine, France2 36.33 March9.93.7×
FriedrichshafenBaden-Wurttemberg, Germany1 40.34 March11.03.7×
MunichBavaria, Germany1 34.93 March9.73.6×
KoblenzRheinland-Pfalz, Germany1 42.83 March11.93.6×
AmorebietaBasque Country, Spain3 30.06 March8.43.6×
Eggenstein-LeopoldshafenBaden-Wurttemberg, Germany1 30.23 March8.53.6×
TübingenBaden-Wurttemberg, Germany1 36.43 March10.33.5×
MontbéliardBourgogne-Franche-Comté, France2 43.23 March12.33.5×
VitrollesProvence-Alpes-Côte d'Azur, France4 33.95 March9.83.5×
HaguenauGrand Est, France1 32.83 March9.63.4×
LyonAuvergne-Rhône-Alpes, France2 34.44 March10.13.4×
StrasbourgGrand Est, France2 40.13 March11.83.4×
LunévilleGrand Est, France1 39.23 March11.63.4×
AnnecyAuvergne-Rhône-Alpes, France3 40.54 March12.13.3×
ArlesProvence-Alpes-Côte d'Azur, France3 34.14 March10.23.3×
SallanchesAuvergne-Rhône-Alpes, France3 43.23 March13.03.3×
AugsburgBavaria, Germany1 35.03 March10.73.3×
GijónAsturias, Spain2 30.76 March9.43.3×
AvignonProvence-Alpes-Côte d'Azur, France4 33.54 March10.33.3×
Neu-UlmBavaria, Germany1 34.43 March10.63.2×
BurghausenBavaria, Germany1 36.03 March11.13.2×
Biberach an der RißBaden-Wurttemberg, Germany1 33.53 March10.43.2×
ManosqueProvence-Alpes-Côte d'Azur, France3 28.85 March9.03.2×
NeuwiedRheinland-Pfalz, Germany1 40.73 March13.03.1×
TrierRheinland-Pfalz, Germany1 32.13 March10.43.1×
Fos-sur-MerProvence-Alpes-Côte d'Azur, France1 26.53 March8.63.1×
NancyGrand Est, France1 35.03 March11.73.0×
GardanneProvence-Alpes-Côte d'Azur, France4 32.95 March11.03.0×
CannesProvence-Alpes-Côte d'Azur, France1 26.66 March8.93.0×
KarlsruheBaden-Wurttemberg, Germany1 29.53 March10.42.8×
UlmBaden-Wurttemberg, Germany1 34.33 March12.12.8×
OviedoAsturias, Spain1 25.66 March9.22.8×
MetzGrand Est, France1 27.63 March10.02.8×
KehlBaden-Wurttemberg, Germany1 30.73 March11.22.7×
GapProvence-Alpes-Côte d'Azur, France1 27.24 March10.22.7×
Novo MestoUrban Municipality of Novo Mesto, Slovenia1 46.53 March17.72.6×
BihaćFederation of B&H, Bosnia and Herzegovina1 72.84 March27.82.6×
KranjUrban Municipality of Kranj, Slovenia1 40.53 March16.42.5×
IzegemFlanders, Belgium1 27.86 March11.72.4×
SpeyerRheinland-Pfalz, Germany1 31.34 March13.52.3×
VigoGalicia, Spain1 25.15 March11.02.3×
MannheimBaden-Wurttemberg, Germany1 29.34 March13.02.3×
BensheimHesse, Germany1 25.14 March11.62.2×
Ludwigshafen am RheinRheinland-Pfalz, Germany1 32.84 March15.32.1×
LampertheimHesse, Germany1 27.24 March12.72.1×

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 France and Germany

Number 3 of 18 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 18.

Use this page

SmogRank, Western Europe, March 2023: 119 cities with PM2.5 at twice their usual or more, 4 to 7 March 2023, smogrank.com/episodes/2023-03-western-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.