SmogRank / Episodes / Germany

Europe, 18 to 25 March 2026

For 8 days, from 18 to 25 March 2026, 362 cities in Germany, France, Poland and 14 more countries had PM2.5 at least twice their usual for the time of year. The worst reading was Łask, Łódź Voivodeship, Poland: 136.0 µg/m³ on 19 March, about 5.2× its usual 26.3.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached362in 17 countries
Days818 to 25 March 2026
Worst day24 March188 cities counted
Furthest above usual9.1×Beersel

Day by day

24 March 188 cities at twice their usual or more
DelmenhorstBremerhavenBielefeldRintelnLüdenscheidRatingenNetphenNettetalVenloUslarBad WildungenMarburg an der LahnWetzlarBendorfGießenGöttingenSalzgitterEupenBraunschweigGoslarWolfsburgWernigerodeAschaffenburgGroßostheimTrierSondershausenLuxembourgDillingenSaarbrückenVölklingenWadgassenSuhlEsch-sur-AlzetteThionvilleEggenstein-LeopoldshafenSaint-AvoldWittenbergeMetzPforzheimBaden-BadenKöthenHerrenbergAnsbachAalenBrandenburg an der HavelNurembergÉpinalVillingen-SchwenningenFreiburgNeuruppinSaint-DizierNeu-UlmMüllheimNauenMulhousePotsdamFalkenseeBaselMontbéliardOranienburgKleinmachnowWeidenIngolstadtZürichSokolovSchwandorf in BayernLindauKelheimKempten (Allgäu)Bernau bei BerlinKönigs WusterhausenNeuenhagenBernStarnbergStrausbergDoleLandshutGothenburgLubnjowPorsgrunnPilsenSchwedt (Oder)CottbusInnsbruckFrankfurt (Oder)BellinzonaAnnemasseFredrikstadEisenhüttenstadtKladnoTraunreutMossBerounLuganoSarpsborgDrammenCanvey IslandStodůlkyNewmarketFreilassingAlbertvilleSalzburgOsloBogatyniaŘíčanySaalfelden am Steinernen MeerVillefranche-sur-SaôneNesttunChambéryLiberecBergenOlivetMoulinsÅsaneVillefontaineSeafordWelsKingston upon HullMeylanGrenobleVichyBrightonLinzTraunLutonAnsfeldenSaint-ÉtienneGjøvikScunthorpeMontluçonRomans-sur-IsèreSteyrValenceLillehammerClermont-FerrandHradec KrálovéPardubiceAmstettenJihlavaYorkLeicesterDoncasterNottinghamOxfordPortsmouthMiddlesbroughChesterfieldDerbyKlagenfurt am WörtherseeRoyal Leamington SpaSunderlandGoriziaSankt PöltenZnojmoKalmarWolfsbergNewcastle upon TyneHigh PeakKranjLinköpingKoperAurillacLimogesBrnoŽideniceLjubljanaGrazÖrebroKlosterneuburgPerchtoldsdorfMödlingViennaTrbovljeNorrköpingCeljeMariborEisenzickenHodonínBristolNovo MestoPřerovPérigueuxAngoulêmeKöpingBratislavaHranicePezinokToruńTrnavaZagrebSereďTrenčínPenicuikEdinburghPúchovNitraTřinecLormontBriton FerryPartizánskeBordeauxKatowiceČadcaKomárnoŽilinaSödertäljePrievidzaGrangemouthElblągVeszprémŁódźBarnstapleHandlováMartinŻywiecŽiar nad HronomUppsalaSollentunaUpplands VäsbyStockholmEsztergomBanská BystricaGlasgowRužomberokZvolenBearsdenLiptovský MikulášBanja LukaPécsBudapestDunaújvárosŻyrardówOlsztynGyálLučenecNorrtäljePopradGyöngyösWawerKazincbarcikaMiskolcBardejovPrešovSzegedKošiceNovi SadVranov nad TopľouKikindaTrebišovHumennéNyíregyházaDebrecenSninaDerryBelgradeTimişoaraPrzemyślZalăuBaia MareRigaSighetu MarmaţieiCluj-NapocaDejTârgu JiuTârgu MureşTallinnKlaukkalaPiteştiCodleaSuceavaBraşovPiatra NeamţLahtiTartuRēzekneKohtla-JärveIaşiMalackyDevínska Nová VesWrocławRacibórzBerlinSenecSenicaKonstancin-JeziornaSzczecinPruszkówZielona GóraPtujPragueGyőrWinterthurLegionowoKielceKrakówWłocławekKłodzkoJastrzębie ZdrójGdyniaPłockWarsawBrzegLublinRadomCzechowice-DziedziceZgierzStendalNeubrandenburgTeltowEłkDessauKościerzynaKołobrzegJelenia GóraBurghausenLunévilleMagdeburgNancyMarktredwitzUnnaBernburgLiepājaGdańskNiskoOpoleAugustówBambergKasselWittenbergCiechanówRzeszówDębicaNordhausenCardiffNorthamptonSchwäbisch HallStrasbourgHagenGeraMerseburgBydgoszczKędzierzyn-KoźleStarachowiceKaliszTübingenGelsenkirchenLimburg an der LahnKrefeldHalle (Saale)GreizMühlhausenJasłoBiałystokMielecHildesheimKonstanzKreuzlingenPulheimWürzburgFilderstadtBiberach an der RißBurg bei MagdeburgAugsburgStuttgartHanau am MainBitterfeld-WolfenWormsLudwigshafen am RheinZamośćPoznańOtwockMichelstadtReutlingenKoblenzDuderstadtBlankenfelde-MahlowLuckenwaldeNeuwiedMainzBad KreuznachBottropEmdenŻaryHansestadt SalzwedelWuppertalFriedrichshafenJülichDuisburgOberhausenVentspilsLampertheimMunichDattelnLundEschbornFrankfurt am MainMannheimBuxtehudeMenenGorzów WielkopolskiLyonHannoverBensheimWeselJenaBremenOsnabrückEssenRüsselsheim am MainCheadle HulmeKehlLüneburgWalsrodeRixensartUlmCannockEvergemSchiedamHeilbronnSaint HelierWeißenfelsBonnDarmstadtSoestSouthamptonEisenachKaiserslauternReimsFuldaErfurtGüstrowCuxhavenSuwałkiLeverkusenLörrachKölnGillinghamRiedstadtWieslochBeverenTilburgHattersheimHalberstadtAntwerpMaldegemMünsterGrimbergenRoeselareSpeyerVenrayHattingenMönchengladbachDüsseldorfNijmegenLauda-KönigshofenSchwerteWiesbadenGentMechelenIJsselsteinEindhovenWeimarLochristiDortmundWarsteinAltenburgHamburgCreilCoulommiersWilhelmshavenMeyzieuWitzenhausenBredaKielWillebroekKapellenStabroekHasseltMaarssenZwijndrechtZaventemBarnsleyLudwigsburgKortrijkHouthalenRostockSchwerinHalstenbekNewportMeiningenLingenChâteaurouxLübeckAthloneJüchenKarlsruheVelsen-ZuidIzegemKrosnoTarnówMalmöFlensburgSheffieldAarschotAuxerreBorkenOldenburgNiortOytenUtrechtBourg-en-BresseReadingStoke-on-TrentMolBrusselsBadhoevedorpVisbyStralsundParisDouaiRadomskoNeversMyyrmäkiBarneveldAachenGenkValenciennesJarosławNamurFontainebleauHillegomItzehoeÉvreuxLeedsNorwichBourgesHeidelbergDreuxFriesoytheKoksijdeOrléansLorientWismarLouviersDunkirkIrlamBelfastFüssenEnschedeAmsterdamDomontThe HagueKnokke-HeistCherbourgRoubaixDenainHeerlenKönigstein im TaunusWarringtonPrestonLondonPlymouthCopenhagenBéthuneBoulogne-sur-MerLiègeSpijkenisseCarlowRotterdamMedemblikToursBrestBeauvaisClacton-on-SeaHayesGroningenJoué-lès-ToursMontargisBexleyManchesterSaint-QuentinHelsinkiPoitiersRidderkerkZaanstadAlençon's-GravenzandeZeitzRouenAndoverQuimperVantaaLohjaWiganVannesNewton AbbotAnsNaasPurmerendDartfordMaassluisCharleroiBloisLilleLe HavreVelserbroekDublinRambouilletAmiensMarche-en-FamenneTournaiTraleeMonsWexfordŁaskWestburyCluain MealaÉtampesSpekeCaenBirminghamRennesAndenneLeixlipDroghedaMontivilliersDieppeChartresSaltashCalaisJumetGreystonesHaarlemLiverpoolFlémalle-HauteOlpeOverijseCambridgeBeersel
15 Mar16171819202122232425262728
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

ŁaskŁask, 15 March: 49.1 µg/m³Łask, 16 March: 47.3 µg/m³Łask, 17 March: 62.4 µg/m³Łask, 18 March: 81.3 µg/m³, 3.1× its usual 26.3Łask, 19 March: 136.0 µg/m³, 5.2× its usual 26.3Łask, 20 March: 93.4 µg/m³, 3.6× its usual 25.6Łask, 21 March: 62.3 µg/m³, 2.5× its usual 24.5Łask, 22 March: 47.1 µg/m³Łask, 23 March: 62.3 µg/m³, 2.7× its usual 23.5Łask, 24 March: 105.0 µg/m³, 4.5× its usual 23.2Łask, 25 March: 58.4 µg/m³Łask, 26 March: 32.1 µg/m³Łask, 27 March: 28.0 µg/m³Łask, 28 March: 36.1 µg/m³RadomskoRadomsko, 15 March: 20.2 µg/m³Radomsko, 16 March: 29.0 µg/m³Radomsko, 17 March: 20.3 µg/m³Radomsko, 18 March: 46.8 µg/m³, 2.2× its usual 21.3Radomsko, 19 March: 84.6 µg/m³, 3.9× its usual 21.6Radomsko, 20 March: 66.6 µg/m³, 3.1× its usual 21.6Radomsko, 21 March: 37.9 µg/m³Radomsko, 22 March: 19.8 µg/m³Radomsko, 23 March: 25.9 µg/m³Radomsko, 24 March: 43.7 µg/m³, 2.2× its usual 20.2Radomsko, 25 March: 27.6 µg/m³Radomsko, 26 March: 14.0 µg/m³Radomsko, 27 March: 11.5 µg/m³Radomsko, 28 March: 20.9 µg/m³TarnówTarnów, 15 March: 19.2 µg/m³Tarnów, 16 March: 39.4 µg/m³Tarnów, 17 March: 23.7 µg/m³Tarnów, 18 March: 38.1 µg/m³, 2.3× its usual 16.8Tarnów, 19 March: 54.6 µg/m³, 3.3× its usual 16.7Tarnów, 20 March: 39.2 µg/m³, 2.3× its usual 16.7Tarnów, 21 March: 19.5 µg/m³Tarnów, 22 March: 29.0 µg/m³Tarnów, 23 March: 39.4 µg/m³, 2.5× its usual 15.5Tarnów, 24 March: 55.6 µg/m³, 3.7× its usual 15.2Tarnów, 25 March: 33.0 µg/m³Tarnów, 26 March: 20.3 µg/m³Tarnów, 27 March: 11.8 µg/m³Tarnów, 28 March: 19.6 µg/m³Gorzów WielkopolskiGorzów Wielkopolski, 15 March: 22.8 µg/m³Gorzów Wielkopolski, 16 March: 18.5 µg/m³Gorzów Wielkopolski, 17 March: 16.2 µg/m³Gorzów Wielkopolski, 18 March: 44.7 µg/m³, 2.4× its usual 18.3Gorzów Wielkopolski, 19 March: 42.3 µg/m³, 2.3× its usual 18.3Gorzów Wielkopolski, 20 March: 50.7 µg/m³, 2.9× its usual 17.5Gorzów Wielkopolski, 21 March: 22.1 µg/m³Gorzów Wielkopolski, 22 March: 30.9 µg/m³Gorzów Wielkopolski, 23 March: 36.8 µg/m³, 2.2× its usual 17.0Gorzów Wielkopolski, 24 March: 51.2 µg/m³, 3.1× its usual 16.6Gorzów Wielkopolski, 25 March: 18.6 µg/m³Gorzów Wielkopolski, 26 March: 8.8 µg/m³Gorzów Wielkopolski, 27 March: 20.3 µg/m³Gorzów Wielkopolski, 28 March: 37.4 µg/m³DębicaDębica, 15 March: 19.1 µg/m³Dębica, 16 March: 31.1 µg/m³Dębica, 17 March: 30.2 µg/m³Dębica, 18 March: 42.3 µg/m³, 2.2× its usual 19.1Dębica, 19 March: 47.5 µg/m³, 2.5× its usual 19.0Dębica, 20 March: 37.6 µg/m³Dębica, 21 March: 24.1 µg/m³Dębica, 22 March: 32.3 µg/m³Dębica, 23 March: 36.2 µg/m³Dębica, 24 March: 47.7 µg/m³, 2.6× its usual 18.3Dębica, 25 March: 34.0 µg/m³Dębica, 26 March: 17.9 µg/m³Dębica, 27 March: 10.6 µg/m³Dębica, 28 March: 22.1 µg/m³Jelenia GóraJelenia Góra, 15 March: 11.5 µg/m³Jelenia Góra, 16 March: 11.6 µg/m³Jelenia Góra, 17 March: 12.9 µg/m³Jelenia Góra, 18 March: 36.2 µg/m³, 2.0× its usual 17.9Jelenia Góra, 19 March: 43.2 µg/m³, 2.4× its usual 17.9Jelenia Góra, 20 March: 31.6 µg/m³Jelenia Góra, 21 March: 24.2 µg/m³Jelenia Góra, 22 March: 30.8 µg/m³Jelenia Góra, 23 March: 30.0 µg/m³Jelenia Góra, 24 March: 34.0 µg/m³, 2.0× its usual 16.7Jelenia Góra, 25 March: 17.6 µg/m³Jelenia Góra, 26 March: 8.3 µg/m³Jelenia Góra, 27 March: 8.3 µg/m³Jelenia Góra, 28 March: 18.0 µg/m³OtwockOtwock, 15 March: 26.9 µg/m³Otwock, 16 March: 35.6 µg/m³Otwock, 17 March: 38.0 µg/m³Otwock, 18 March: 37.4 µg/m³Otwock, 19 March: 51.0 µg/m³, 2.1× its usual 24.3Otwock, 20 March: 68.9 µg/m³, 2.9× its usual 24.1Otwock, 21 March: 36.3 µg/m³Otwock, 22 March: 39.0 µg/m³Otwock, 23 March: 50.2 µg/m³, 2.3× its usual 21.9Otwock, 24 March: 62.9 µg/m³, 2.9× its usual 21.6Otwock, 25 March: 41.2 µg/m³Otwock, 26 March: 17.4 µg/m³Otwock, 27 March: 12.6 µg/m³Otwock, 28 March: 17.8 µg/m³JarosławJarosław, 15 March: no readingJarosław, 16 March: no readingJarosław, 17 March: no readingJarosław, 18 March: no readingJarosław, 19 March: 44.4 µg/m³, 2.8× its usual 15.8Jarosław, 20 March: 37.2 µg/m³, 2.3× its usual 15.9Jarosław, 21 March: 16.6 µg/m³Jarosław, 22 March: 20.0 µg/m³Jarosław, 23 March: 43.1 µg/m³, 2.8× its usual 15.3Jarosław, 24 March: 59.1 µg/m³, 4.0× its usual 14.8Jarosław, 25 March: 30.8 µg/m³Jarosław, 26 March: 18.3 µg/m³Jarosław, 27 March: 11.0 µg/m³Jarosław, 28 March: 23.3 µg/m³ZgierzZgierz, 15 March: 23.6 µg/m³Zgierz, 16 March: 28.2 µg/m³Zgierz, 17 March: 20.1 µg/m³Zgierz, 18 March: 30.9 µg/m³Zgierz, 19 March: 53.8 µg/m³, 2.3× its usual 22.9Zgierz, 20 March: 45.4 µg/m³, 2.0× its usual 22.6Zgierz, 21 March: 24.5 µg/m³Zgierz, 22 March: 18.2 µg/m³Zgierz, 23 March: 31.7 µg/m³Zgierz, 24 March: 41.6 µg/m³, 2.0× its usual 20.5Zgierz, 25 March: 26.8 µg/m³Zgierz, 26 March: 17.3 µg/m³Zgierz, 27 March: 12.2 µg/m³Zgierz, 28 March: 16.4 µg/m³KłodzkoKłodzko, 15 March: 17.5 µg/m³Kłodzko, 16 March: 14.3 µg/m³Kłodzko, 17 March: 11.5 µg/m³Kłodzko, 18 March: 30.1 µg/m³Kłodzko, 19 March: 52.3 µg/m³, 2.2× its usual 23.4Kłodzko, 20 March: 48.8 µg/m³, 2.1× its usual 23.5Kłodzko, 21 March: 20.3 µg/m³Kłodzko, 22 March: 37.9 µg/m³Kłodzko, 23 March: 43.5 µg/m³, 2.0× its usual 21.6Kłodzko, 24 March: 47.6 µg/m³, 2.3× its usual 21.0Kłodzko, 25 March: 25.0 µg/m³Kłodzko, 26 March: 9.7 µg/m³Kłodzko, 27 March: 10.3 µg/m³Kłodzko, 28 March: 12.2 µg/m³HaarlemHaarlem, 15 March: 1.4 µg/m³Haarlem, 16 March: 1.5 µg/m³Haarlem, 17 March: 8.1 µg/m³Haarlem, 18 March: 13.9 µg/m³Haarlem, 19 March: 32.3 µg/m³, 3.0× its usual 10.6Haarlem, 20 March: 15.7 µg/m³Haarlem, 21 March: 22.1 µg/m³Haarlem, 22 March: 40.4 µg/m³, 5.5× its usual 7.4Haarlem, 23 March: 50.3 µg/m³, 6.0× its usual 8.4Haarlem, 24 March: 43.9 µg/m³, 4.8× its usual 9.2Haarlem, 25 March: 3.2 µg/m³Haarlem, 26 March: 0.3 µg/m³Haarlem, 27 March: 8.0 µg/m³Haarlem, 28 March: 4.1 µg/m³StarachowiceStarachowice, 15 March: 23.4 µg/m³Starachowice, 16 March: 25.4 µg/m³Starachowice, 17 March: 23.0 µg/m³Starachowice, 18 March: 24.2 µg/m³Starachowice, 19 March: 49.0 µg/m³, 2.7× its usual 18.2Starachowice, 20 March: 27.9 µg/m³Starachowice, 21 March: 28.3 µg/m³Starachowice, 22 March: 26.0 µg/m³Starachowice, 23 March: 38.5 µg/m³, 2.2× its usual 17.7Starachowice, 24 March: 41.7 µg/m³, 2.4× its usual 17.6Starachowice, 25 March: 28.4 µg/m³Starachowice, 26 March: 12.3 µg/m³Starachowice, 27 March: 10.1 µg/m³Starachowice, 28 March: 16.3 µg/m³MielecMielec, 15 March: 17.9 µg/m³Mielec, 16 March: 29.1 µg/m³Mielec, 17 March: 27.9 µg/m³Mielec, 18 March: 26.6 µg/m³Mielec, 19 March: 48.2 µg/m³, 2.8× its usual 17.0Mielec, 20 March: 39.2 µg/m³, 2.3× its usual 17.2Mielec, 21 March: 19.7 µg/m³Mielec, 22 March: 20.7 µg/m³Mielec, 23 March: 25.8 µg/m³Mielec, 24 March: 40.7 µg/m³, 2.6× its usual 15.8Mielec, 25 March: 29.3 µg/m³Mielec, 26 March: 13.5 µg/m³Mielec, 27 March: 9.1 µg/m³Mielec, 28 March: 18.0 µg/m³BeerselBeersel, 15 March: 7.7 µg/m³Beersel, 16 March: 0.8 µg/m³Beersel, 17 March: 2.9 µg/m³Beersel, 18 March: 4.0 µg/m³Beersel, 19 March: 28.0 µg/m³, 4.6× its usual 6.1Beersel, 20 March: 41.4 µg/m³, 8.0× its usual 5.2Beersel, 21 March: 21.0 µg/m³Beersel, 22 March: 37.7 µg/m³, 7.5× its usual 4.4Beersel, 23 March: 48.2 µg/m³, 9.1× its usual 5.3Beersel, 24 March: 40.6 µg/m³, 6.5× its usual 6.2Beersel, 25 March: 3.7 µg/m³Beersel, 26 March: 1.8 µg/m³Beersel, 27 March: 3.7 µg/m³Beersel, 28 March: 5.5 µg/m³ZamośćZamość, 15 March: 19.3 µg/m³Zamość, 16 March: 28.8 µg/m³Zamość, 17 March: 27.4 µg/m³Zamość, 18 March: 19.2 µg/m³Zamość, 19 March: 46.9 µg/m³, 2.5× its usual 18.9Zamość, 20 March: 26.4 µg/m³Zamość, 21 March: 28.8 µg/m³Zamość, 22 March: 23.1 µg/m³Zamość, 23 March: 44.9 µg/m³, 2.6× its usual 17.4Zamość, 24 March: 47.9 µg/m³, 2.9× its usual 16.8Zamość, 25 March: 28.2 µg/m³Zamość, 26 March: 23.1 µg/m³Zamość, 27 March: 11.2 µg/m³Zamość, 28 March: 17.2 µg/m³RadomRadom, 15 March: 20.0 µg/m³Radom, 16 March: 23.3 µg/m³Radom, 17 March: 21.2 µg/m³Radom, 18 March: 24.0 µg/m³Radom, 19 March: 45.8 µg/m³, 2.3× its usual 19.7Radom, 20 March: 30.5 µg/m³Radom, 21 March: 22.4 µg/m³Radom, 22 March: 22.7 µg/m³Radom, 23 March: 27.9 µg/m³Radom, 24 March: 39.1 µg/m³, 2.1× its usual 19.0Radom, 25 March: 24.3 µg/m³Radom, 26 March: 13.0 µg/m³Radom, 27 March: 10.7 µg/m³Radom, 28 March: 16.3 µg/m³OverijseOverijse, 15 March: 8.5 µg/m³Overijse, 16 March: 0.4 µg/m³Overijse, 17 March: 1.3 µg/m³Overijse, 18 March: 2.9 µg/m³Overijse, 19 March: 29.5 µg/m³, 5.0× its usual 5.9Overijse, 20 March: 41.3 µg/m³, 7.0× its usual 5.9Overijse, 21 March: 19.6 µg/m³Overijse, 22 March: 36.6 µg/m³, 7.3× its usual 4.4Overijse, 23 March: 45.0 µg/m³, 7.6× its usual 5.9Overijse, 24 March: 40.8 µg/m³, 5.7× its usual 7.2Overijse, 25 March: 3.5 µg/m³Overijse, 26 March: 0.3 µg/m³Overijse, 27 March: 2.7 µg/m³Overijse, 28 March: 3.1 µg/m³CambridgeCambridge, 15 March: 4.0 µg/m³Cambridge, 16 March: 0.6 µg/m³Cambridge, 17 March: 2.6 µg/m³Cambridge, 18 March: 11.1 µg/m³Cambridge, 19 March: 33.8 µg/m³, 6.8× its usual 3.0Cambridge, 20 March: 29.4 µg/m³, 5.9× its usual 3.0Cambridge, 21 March: 8.2 µg/m³Cambridge, 22 March: 28.0 µg/m³, 5.6× its usual 3.6Cambridge, 23 March: 44.5 µg/m³, 8.9× its usual 4.1Cambridge, 24 March: 16.5 µg/m³Cambridge, 25 March: 0.0 µg/m³Cambridge, 26 March: 0.7 µg/m³Cambridge, 27 March: 2.9 µg/m³Cambridge, 28 March: 0.2 µg/m³RzeszówRzeszów, 15 March: 26.2 µg/m³Rzeszów, 16 March: 27.5 µg/m³Rzeszów, 17 March: 20.0 µg/m³Rzeszów, 18 March: 32.0 µg/m³Rzeszów, 19 March: 37.0 µg/m³, 2.1× its usual 17.5Rzeszów, 20 March: 42.2 µg/m³, 2.4× its usual 17.8Rzeszów, 21 March: 21.4 µg/m³Rzeszów, 22 March: 30.6 µg/m³Rzeszów, 23 March: 36.1 µg/m³, 2.1× its usual 17.3Rzeszów, 24 March: 43.8 µg/m³, 2.6× its usual 16.9Rzeszów, 25 March: 27.4 µg/m³Rzeszów, 26 March: 15.3 µg/m³Rzeszów, 27 March: 10.8 µg/m³Rzeszów, 28 March: 22.9 µg/m³BrzegBrzeg, 15 March: 15.0 µg/m³Brzeg, 16 March: 13.3 µg/m³Brzeg, 17 March: 12.8 µg/m³Brzeg, 18 March: 26.5 µg/m³Brzeg, 19 March: 38.9 µg/m³, 2.1× its usual 18.4Brzeg, 20 March: 29.7 µg/m³Brzeg, 21 March: 23.1 µg/m³Brzeg, 22 March: 28.5 µg/m³Brzeg, 23 March: 39.2 µg/m³, 2.2× its usual 17.8Brzeg, 24 March: 41.6 µg/m³, 2.3× its usual 17.8Brzeg, 25 March: 21.5 µg/m³Brzeg, 26 March: 6.9 µg/m³Brzeg, 27 March: 10.9 µg/m³Brzeg, 28 March: 13.2 µg/m³Kędzierzyn-KoźleKędzierzyn-Koźle, 15 March: 11.9 µg/m³Kędzierzyn-Koźle, 16 March: 13.0 µg/m³Kędzierzyn-Koźle, 17 March: 11.5 µg/m³Kędzierzyn-Koźle, 18 March: 17.8 µg/m³Kędzierzyn-Koźle, 19 March: 36.3 µg/m³, 2.4× its usual 15.4Kędzierzyn-Koźle, 20 March: 41.0 µg/m³, 2.7× its usual 15.4Kędzierzyn-Koźle, 21 March: 18.5 µg/m³Kędzierzyn-Koźle, 22 March: 20.3 µg/m³Kędzierzyn-Koźle, 23 March: 33.2 µg/m³, 2.3× its usual 14.5Kędzierzyn-Koźle, 24 March: 30.3 µg/m³, 2.1× its usual 14.1Kędzierzyn-Koźle, 25 March: 25.5 µg/m³Kędzierzyn-Koźle, 26 March: 7.5 µg/m³Kędzierzyn-Koźle, 27 March: 9.2 µg/m³Kędzierzyn-Koźle, 28 March: 12.7 µg/m³OpoleOpole, 15 March: 13.0 µg/m³Opole, 16 March: 12.7 µg/m³Opole, 17 March: 10.9 µg/m³Opole, 18 March: 20.0 µg/m³Opole, 19 March: 40.6 µg/m³, 2.5× its usual 16.4Opole, 20 March: 31.5 µg/m³Opole, 21 March: 17.2 µg/m³Opole, 22 March: 22.0 µg/m³Opole, 23 March: 37.0 µg/m³, 2.4× its usual 15.6Opole, 24 March: 30.2 µg/m³Opole, 25 March: 25.1 µg/m³Opole, 26 March: 6.5 µg/m³Opole, 27 March: 10.2 µg/m³Opole, 28 March: 11.1 µg/m³WinterthurWinterthur, 15 March: 11.4 µg/m³Winterthur, 16 March: 7.5 µg/m³Winterthur, 17 March: 2.1 µg/m³Winterthur, 18 March: 15.0 µg/m³Winterthur, 19 March: 36.8 µg/m³, 2.2× its usual 17.0Winterthur, 20 March: 28.8 µg/m³Winterthur, 21 March: 34.0 µg/m³Winterthur, 22 March: 39.4 µg/m³, 2.2× its usual 18.1Winterthur, 23 March: 31.5 µg/m³Winterthur, 24 March: 31.5 µg/m³Winterthur, 25 March: 13.2 µg/m³Winterthur, 26 March: 1.1 µg/m³Winterthur, 27 March: 4.5 µg/m³Winterthur, 28 March: 11.7 µg/m³NiskoNisko, 15 March: 23.7 µg/m³Nisko, 16 March: 28.7 µg/m³Nisko, 17 March: 21.4 µg/m³Nisko, 18 March: 25.0 µg/m³Nisko, 19 March: 33.7 µg/m³, 2.0× its usual 16.6Nisko, 20 March: 31.5 µg/m³Nisko, 21 March: 22.6 µg/m³Nisko, 22 March: 18.7 µg/m³Nisko, 23 March: 25.3 µg/m³Nisko, 24 March: 39.2 µg/m³, 2.5× its usual 15.8Nisko, 25 March: 37.4 µg/m³Nisko, 26 March: 19.7 µg/m³Nisko, 27 March: 9.7 µg/m³Nisko, 28 March: 21.3 µg/m³Jastrzębie ZdrójJastrzębie Zdrój, 15 March: 18.5 µg/m³Jastrzębie Zdrój, 16 March: 24.0 µg/m³Jastrzębie Zdrój, 17 March: 25.1 µg/m³Jastrzębie Zdrój, 18 March: 28.5 µg/m³Jastrzębie Zdrój, 19 March: 40.5 µg/m³Jastrzębie Zdrój, 20 March: 52.5 µg/m³, 2.2× its usual 23.5Jastrzębie Zdrój, 21 March: 23.2 µg/m³Jastrzębie Zdrój, 22 March: 30.4 µg/m³Jastrzębie Zdrój, 23 March: 37.0 µg/m³Jastrzębie Zdrój, 24 March: 37.2 µg/m³Jastrzębie Zdrój, 25 March: 25.9 µg/m³Jastrzębie Zdrój, 26 March: 12.5 µg/m³Jastrzębie Zdrój, 27 March: 14.2 µg/m³Jastrzębie Zdrój, 28 March: 21.0 µg/m³CalaisCalais, 15 March: 6.5 µg/m³Calais, 16 March: 10.1 µg/m³Calais, 17 March: 10.0 µg/m³Calais, 18 March: 8.5 µg/m³Calais, 19 March: 23.5 µg/m³Calais, 20 March: 31.3 µg/m³, 3.4× its usual 9.1Calais, 21 March: 16.2 µg/m³Calais, 22 March: 37.3 µg/m³, 4.2× its usual 8.9Calais, 23 March: 51.2 µg/m³, 5.8× its usual 8.9Calais, 24 March: 28.1 µg/m³, 3.3× its usual 8.6Calais, 25 March: no readingCalais, 26 March: no readingCalais, 27 March: no readingCalais, 28 March: 7.3 µg/m³DieppeDieppe, 15 March: 4.8 µg/m³Dieppe, 16 March: 10.4 µg/m³Dieppe, 17 March: 8.0 µg/m³Dieppe, 18 March: 6.8 µg/m³Dieppe, 19 March: 20.0 µg/m³Dieppe, 20 March: 45.2 µg/m³, 4.9× its usual 9.2Dieppe, 21 March: 19.9 µg/m³Dieppe, 22 March: 31.5 µg/m³, 3.4× its usual 9.2Dieppe, 23 March: 50.9 µg/m³, 5.5× its usual 9.2Dieppe, 24 March: 29.8 µg/m³, 3.2× its usual 9.2Dieppe, 25 March: 8.7 µg/m³Dieppe, 26 March: 6.0 µg/m³Dieppe, 27 March: 7.9 µg/m³Dieppe, 28 March: 6.8 µg/m³Boulogne-sur-MerBoulogne-sur-Mer, 15 March: 11.6 µg/m³Boulogne-sur-Mer, 16 March: 13.0 µg/m³Boulogne-sur-Mer, 17 March: 11.5 µg/m³Boulogne-sur-Mer, 18 March: 6.9 µg/m³Boulogne-sur-Mer, 19 March: 19.9 µg/m³Boulogne-sur-Mer, 20 March: 37.4 µg/m³, 3.3× its usual 11.2Boulogne-sur-Mer, 21 March: 16.0 µg/m³Boulogne-sur-Mer, 22 March: 36.1 µg/m³, 3.2× its usual 11.3Boulogne-sur-Mer, 23 March: 50.7 µg/m³, 4.4× its usual 11.6Boulogne-sur-Mer, 24 March: 30.7 µg/m³, 2.6× its usual 11.9Boulogne-sur-Mer, 25 March: 8.4 µg/m³Boulogne-sur-Mer, 26 March: 6.2 µg/m³Boulogne-sur-Mer, 27 March: no readingBoulogne-sur-Mer, 28 March: 7.2 µg/m³Czechowice-DziedziceCzechowice-Dziedzice, 15 March: 16.0 µg/m³Czechowice-Dziedzice, 16 March: 23.0 µg/m³Czechowice-Dziedzice, 17 March: 21.0 µg/m³Czechowice-Dziedzice, 18 March: 23.1 µg/m³Czechowice-Dziedzice, 19 March: 39.5 µg/m³Czechowice-Dziedzice, 20 March: 47.3 µg/m³, 2.3× its usual 20.7Czechowice-Dziedzice, 21 March: 17.9 µg/m³Czechowice-Dziedzice, 22 March: 29.2 µg/m³Czechowice-Dziedzice, 23 March: 44.3 µg/m³, 2.2× its usual 20.4Czechowice-Dziedzice, 24 March: 35.7 µg/m³Czechowice-Dziedzice, 25 March: 29.8 µg/m³Czechowice-Dziedzice, 26 March: 11.5 µg/m³Czechowice-Dziedzice, 27 March: 13.4 µg/m³Czechowice-Dziedzice, 28 March: 19.8 µg/m³DunkirkDunkirk, 15 March: 6.9 µg/m³Dunkirk, 16 March: 10.5 µg/m³Dunkirk, 17 March: 9.2 µg/m³Dunkirk, 18 March: 9.5 µg/m³Dunkirk, 19 March: 23.8 µg/m³Dunkirk, 20 March: 30.4 µg/m³, 2.8× its usual 10.8Dunkirk, 21 March: 16.2 µg/m³Dunkirk, 22 March: 37.5 µg/m³, 3.4× its usual 11.1Dunkirk, 23 March: 46.8 µg/m³, 4.2× its usual 11.2Dunkirk, 24 March: 29.0 µg/m³, 2.7× its usual 10.8Dunkirk, 25 March: 9.0 µg/m³Dunkirk, 26 March: 7.9 µg/m³Dunkirk, 27 March: no readingDunkirk, 28 March: 9.8 µg/m³DenainDenain, 15 March: 6.3 µg/m³Denain, 16 March: 8.3 µg/m³Denain, 17 March: 8.8 µg/m³Denain, 18 March: 7.6 µg/m³Denain, 19 March: 22.1 µg/m³Denain, 20 March: 38.6 µg/m³, 3.7× its usual 10.5Denain, 21 March: 19.8 µg/m³Denain, 22 March: 33.1 µg/m³, 3.1× its usual 10.7Denain, 23 March: 46.1 µg/m³, 4.3× its usual 10.7Denain, 24 March: 34.0 µg/m³, 3.3× its usual 10.3Denain, 25 March: 7.2 µg/m³Denain, 26 March: 4.1 µg/m³Denain, 27 March: no readingDenain, 28 March: 8.1 µg/m³BéthuneBéthune, 15 March: 6.7 µg/m³Béthune, 16 March: 9.2 µg/m³Béthune, 17 March: 8.1 µg/m³Béthune, 18 March: 7.4 µg/m³Béthune, 19 March: 21.5 µg/m³Béthune, 20 March: 38.2 µg/m³, 3.7× its usual 10.4Béthune, 21 March: 16.1 µg/m³Béthune, 22 March: 31.9 µg/m³, 3.1× its usual 10.4Béthune, 23 March: 45.9 µg/m³, 4.4× its usual 10.5Béthune, 24 March: 30.4 µg/m³, 2.9× its usual 10.4Béthune, 25 March: 6.7 µg/m³Béthune, 26 March: 6.8 µg/m³Béthune, 27 March: no readingBéthune, 28 March: 6.8 µg/m³RennesRennes, 15 March: 8.4 µg/m³Rennes, 16 March: 11.4 µg/m³Rennes, 17 March: 10.0 µg/m³Rennes, 18 March: 6.6 µg/m³Rennes, 19 March: 18.8 µg/m³Rennes, 20 March: 27.0 µg/m³, 3.2× its usual 8.5Rennes, 21 March: 45.5 µg/m³, 5.4× its usual 8.5Rennes, 22 March: 26.3 µg/m³, 3.1× its usual 8.5Rennes, 23 March: 27.3 µg/m³, 3.2× its usual 8.5Rennes, 24 March: 24.2 µg/m³Rennes, 25 March: 8.3 µg/m³Rennes, 26 March: 6.3 µg/m³Rennes, 27 March: 9.0 µg/m³Rennes, 28 March: 6.5 µg/m³AmiensAmiens, 15 March: 5.9 µg/m³Amiens, 16 March: 8.8 µg/m³Amiens, 17 March: 10.1 µg/m³Amiens, 18 March: 9.0 µg/m³Amiens, 19 March: 19.5 µg/m³Amiens, 20 March: 41.8 µg/m³, 4.7× its usual 8.9Amiens, 21 March: 22.8 µg/m³Amiens, 22 March: 29.4 µg/m³, 3.3× its usual 8.8Amiens, 23 March: 45.0 µg/m³, 5.1× its usual 8.8Amiens, 24 March: 31.0 µg/m³, 3.5× its usual 8.8Amiens, 25 March: 6.9 µg/m³Amiens, 26 March: 5.7 µg/m³Amiens, 27 March: no readingAmiens, 28 March: 6.2 µg/m³LiverpoolLiverpool, 15 March: 6.1 µg/m³Liverpool, 16 March: 5.3 µg/m³Liverpool, 17 March: 4.0 µg/m³Liverpool, 18 March: 11.0 µg/m³Liverpool, 19 March: 16.5 µg/m³Liverpool, 20 March: 28.0 µg/m³, 3.9× its usual 7.2Liverpool, 21 March: 44.4 µg/m³, 6.3× its usual 7.0Liverpool, 22 March: no readingLiverpool, 23 March: no readingLiverpool, 24 March: 4.1 µg/m³Liverpool, 25 March: 4.1 µg/m³Liverpool, 26 March: 5.3 µg/m³Liverpool, 27 March: 4.8 µg/m³Liverpool, 28 March: 7.6 µg/m³RoubaixRoubaix, 15 March: 9.8 µg/m³Roubaix, 16 March: 7.4 µg/m³Roubaix, 17 March: 8.1 µg/m³Roubaix, 18 March: 8.6 µg/m³Roubaix, 19 March: 21.3 µg/m³Roubaix, 20 March: 39.2 µg/m³, 3.8× its usual 10.3Roubaix, 21 March: 18.8 µg/m³Roubaix, 22 March: 29.9 µg/m³, 2.9× its usual 10.3Roubaix, 23 March: 44.3 µg/m³, 4.3× its usual 10.3Roubaix, 24 March: 35.3 µg/m³, 3.5× its usual 10.2Roubaix, 25 March: 10.3 µg/m³Roubaix, 26 March: 10.9 µg/m³Roubaix, 27 March: no readingRoubaix, 28 March: 7.6 µg/m³Le HavreLe Havre, 15 March: 5.6 µg/m³Le Havre, 16 March: 10.5 µg/m³Le Havre, 17 March: 9.1 µg/m³Le Havre, 18 March: 7.8 µg/m³Le Havre, 19 March: 21.0 µg/m³Le Havre, 20 March: 43.9 µg/m³, 5.0× its usual 8.7Le Havre, 21 March: 25.4 µg/m³, 2.9× its usual 8.7Le Havre, 22 March: 32.0 µg/m³, 3.7× its usual 8.7Le Havre, 23 March: 39.0 µg/m³, 4.6× its usual 8.5Le Havre, 24 March: 27.8 µg/m³, 3.3× its usual 8.5Le Havre, 25 March: 9.4 µg/m³Le Havre, 26 March: 4.9 µg/m³Le Havre, 27 March: 6.5 µg/m³Le Havre, 28 March: 6.6 µg/m³ValenciennesValenciennes, 15 March: 7.0 µg/m³Valenciennes, 16 March: 8.8 µg/m³Valenciennes, 17 March: 8.7 µg/m³Valenciennes, 18 March: 7.3 µg/m³Valenciennes, 19 March: 22.6 µg/m³Valenciennes, 20 March: 37.2 µg/m³, 3.4× its usual 10.9Valenciennes, 21 March: 19.0 µg/m³Valenciennes, 22 March: 29.6 µg/m³, 2.7× its usual 10.9Valenciennes, 23 March: 43.7 µg/m³, 4.0× its usual 11.0Valenciennes, 24 March: 32.4 µg/m³, 3.0× its usual 10.9Valenciennes, 25 March: 7.3 µg/m³Valenciennes, 26 March: 3.9 µg/m³Valenciennes, 27 March: no readingValenciennes, 28 March: 7.3 µg/m³WexfordWexford, 15 March: 7.4 µg/m³Wexford, 16 March: 12.7 µg/m³Wexford, 17 March: 15.3 µg/m³Wexford, 18 March: 12.0 µg/m³Wexford, 19 March: 12.7 µg/m³Wexford, 20 March: 42.7 µg/m³, 5.2× its usual 8.2Wexford, 21 March: 34.8 µg/m³, 4.2× its usual 8.2Wexford, 22 March: 21.0 µg/m³Wexford, 23 March: 10.4 µg/m³Wexford, 24 March: 5.7 µg/m³Wexford, 25 March: 6.9 µg/m³Wexford, 26 March: 9.7 µg/m³Wexford, 27 March: 9.9 µg/m³Wexford, 28 March: 7.7 µg/m³LouviersLouviers, 15 March: 5.2 µg/m³Louviers, 16 March: 8.7 µg/m³Louviers, 17 March: 8.7 µg/m³Louviers, 18 March: 7.7 µg/m³Louviers, 19 March: 19.4 µg/m³Louviers, 20 March: 33.4 µg/m³, 3.4× its usual 9.9Louviers, 21 March: 33.6 µg/m³, 3.4× its usual 10.0Louviers, 22 March: 26.3 µg/m³, 2.6× its usual 10.0Louviers, 23 March: 42.1 µg/m³, 4.2× its usual 10.0Louviers, 24 March: 26.7 µg/m³, 2.7× its usual 9.8Louviers, 25 March: 7.0 µg/m³Louviers, 26 March: 4.8 µg/m³Louviers, 27 March: 8.5 µg/m³Louviers, 28 March: 6.0 µg/m³ChartresChartres, 15 March: 5.9 µg/m³Chartres, 16 March: 7.5 µg/m³Chartres, 17 March: 9.7 µg/m³Chartres, 18 March: 7.9 µg/m³Chartres, 19 March: 23.5 µg/m³Chartres, 20 March: 26.7 µg/m³, 3.6× its usual 7.5Chartres, 21 March: 41.8 µg/m³, 5.6× its usual 7.5Chartres, 22 March: 27.9 µg/m³, 3.7× its usual 7.5Chartres, 23 March: 35.3 µg/m³, 4.7× its usual 7.5Chartres, 24 March: 26.2 µg/m³, 3.5× its usual 7.5Chartres, 25 March: 9.2 µg/m³Chartres, 26 March: 4.1 µg/m³Chartres, 27 March: 6.8 µg/m³Chartres, 28 March: 6.1 µg/m³RouenRouen, 15 March: 6.7 µg/m³Rouen, 16 March: 9.5 µg/m³Rouen, 17 March: 9.6 µg/m³Rouen, 18 March: 7.7 µg/m³Rouen, 19 March: 20.2 µg/m³Rouen, 20 March: 37.5 µg/m³, 4.2× its usual 9.0Rouen, 21 March: 30.6 µg/m³, 3.4× its usual 8.9Rouen, 22 March: 27.9 µg/m³, 3.1× its usual 8.9Rouen, 23 March: 41.7 µg/m³, 4.7× its usual 8.9Rouen, 24 March: 25.9 µg/m³, 2.9× its usual 8.8Rouen, 25 March: 7.4 µg/m³Rouen, 26 March: 5.4 µg/m³Rouen, 27 March: 9.2 µg/m³Rouen, 28 March: 6.4 µg/m³MontivilliersMontivilliers, 15 March: 6.1 µg/m³Montivilliers, 16 March: 10.3 µg/m³Montivilliers, 17 March: 8.5 µg/m³Montivilliers, 18 March: 7.1 µg/m³Montivilliers, 19 March: 19.8 µg/m³Montivilliers, 20 March: 41.1 µg/m³, 5.5× its usual 7.5Montivilliers, 21 March: 23.7 µg/m³Montivilliers, 22 March: 27.0 µg/m³, 3.6× its usual 7.5Montivilliers, 23 March: 38.7 µg/m³, 5.4× its usual 7.2Montivilliers, 24 March: 27.4 µg/m³, 3.8× its usual 7.2Montivilliers, 25 March: 8.9 µg/m³Montivilliers, 26 March: 5.1 µg/m³Montivilliers, 27 March: 6.1 µg/m³Montivilliers, 28 March: 6.3 µg/m³IzegemIzegem, 15 March: 10.7 µg/m³Izegem, 16 March: 10.3 µg/m³Izegem, 17 March: 9.9 µg/m³Izegem, 18 March: 8.2 µg/m³Izegem, 19 March: 21.8 µg/m³Izegem, 20 March: 34.0 µg/m³, 3.0× its usual 11.3Izegem, 21 March: 14.3 µg/m³Izegem, 22 March: 29.1 µg/m³, 2.6× its usual 11.3Izegem, 23 March: 34.8 µg/m³, 3.1× its usual 11.3Izegem, 24 March: 41.1 µg/m³, 3.7× its usual 11.1Izegem, 25 March: no readingIzegem, 26 March: 4.5 µg/m³Izegem, 27 March: 12.1 µg/m³Izegem, 28 March: 6.2 µg/m³BirminghamBirmingham, 15 March: 8.0 µg/m³Birmingham, 16 March: 5.1 µg/m³Birmingham, 17 March: 5.7 µg/m³Birmingham, 18 March: 10.7 µg/m³Birmingham, 19 March: 13.4 µg/m³Birmingham, 20 March: 25.1 µg/m³, 3.3× its usual 7.6Birmingham, 21 March: 28.9 µg/m³, 3.8× its usual 7.6Birmingham, 22 March: 40.5 µg/m³, 5.3× its usual 7.6Birmingham, 23 March: 17.6 µg/m³Birmingham, 24 March: 10.8 µg/m³Birmingham, 25 March: 3.3 µg/m³Birmingham, 26 March: 4.1 µg/m³Birmingham, 27 March: 4.8 µg/m³Birmingham, 28 March: 6.3 µg/m³Saint-QuentinSaint-Quentin, 15 March: 5.0 µg/m³Saint-Quentin, 16 March: 8.2 µg/m³Saint-Quentin, 17 March: 8.7 µg/m³Saint-Quentin, 18 March: 7.3 µg/m³Saint-Quentin, 19 March: 19.7 µg/m³Saint-Quentin, 20 March: 33.3 µg/m³, 3.8× its usual 8.8Saint-Quentin, 21 March: 24.3 µg/m³Saint-Quentin, 22 March: 25.8 µg/m³, 3.0× its usual 8.7Saint-Quentin, 23 March: 40.3 µg/m³, 4.6× its usual 8.7Saint-Quentin, 24 March: 29.6 µg/m³, 3.4× its usual 8.7Saint-Quentin, 25 March: 6.4 µg/m³Saint-Quentin, 26 March: 4.8 µg/m³Saint-Quentin, 27 March: no readingSaint-Quentin, 28 March: 6.8 µg/m³CaenCaen, 15 March: 5.7 µg/m³Caen, 16 March: 9.3 µg/m³Caen, 17 March: 8.2 µg/m³Caen, 18 March: 5.7 µg/m³Caen, 19 March: 19.1 µg/m³Caen, 20 March: 39.5 µg/m³, 5.3× its usual 7.5Caen, 21 March: 28.1 µg/m³, 3.7× its usual 7.5Caen, 22 March: 30.6 µg/m³, 4.1× its usual 7.5Caen, 23 March: 31.6 µg/m³, 4.2× its usual 7.5Caen, 24 March: 21.8 µg/m³Caen, 25 March: 7.5 µg/m³Caen, 26 March: 4.4 µg/m³Caen, 27 March: 5.6 µg/m³Caen, 28 March: 6.1 µg/m³LilleLille, 15 March: 6.3 µg/m³Lille, 16 March: 7.7 µg/m³Lille, 17 March: 8.1 µg/m³Lille, 18 March: 7.7 µg/m³Lille, 19 March: 20.2 µg/m³Lille, 20 March: 37.7 µg/m³, 4.5× its usual 8.3Lille, 21 March: 16.7 µg/m³Lille, 22 March: 31.3 µg/m³, 4.0× its usual 7.9Lille, 23 March: 39.5 µg/m³, 5.0× its usual 7.9Lille, 24 March: 32.8 µg/m³, 4.2× its usual 7.9Lille, 25 March: 6.6 µg/m³Lille, 26 March: 5.0 µg/m³Lille, 27 March: no readingLille, 28 March: 6.9 µg/m³VannesVannes, 15 March: 6.0 µg/m³Vannes, 16 March: 11.1 µg/m³Vannes, 17 March: 9.4 µg/m³Vannes, 18 March: 4.2 µg/m³Vannes, 19 March: 12.9 µg/m³Vannes, 20 March: 23.1 µg/m³Vannes, 21 March: 40.3 µg/m³, 4.9× its usual 8.2Vannes, 22 March: 16.9 µg/m³Vannes, 23 March: 19.5 µg/m³Vannes, 24 March: 19.1 µg/m³Vannes, 25 March: 7.6 µg/m³Vannes, 26 March: 6.8 µg/m³Vannes, 27 March: 6.2 µg/m³Vannes, 28 March: 5.0 µg/m³CopenhagenCopenhagen, 15 March: 11.5 µg/m³Copenhagen, 16 March: 8.9 µg/m³Copenhagen, 17 March: 1.2 µg/m³Copenhagen, 18 March: 6.3 µg/m³Copenhagen, 19 March: 24.0 µg/m³Copenhagen, 20 March: 14.3 µg/m³Copenhagen, 21 March: 11.6 µg/m³Copenhagen, 22 March: 17.0 µg/m³Copenhagen, 23 March: 32.6 µg/m³, 3.4× its usual 9.6Copenhagen, 24 March: 41.1 µg/m³, 4.4× its usual 9.3Copenhagen, 25 March: 13.7 µg/m³Copenhagen, 26 March: 0.1 µg/m³Copenhagen, 27 March: 0.2 µg/m³Copenhagen, 28 March: 11.8 µg/m³CiechanówCiechanów, 15 March: 17.0 µg/m³Ciechanów, 16 March: 22.4 µg/m³Ciechanów, 17 March: 12.6 µg/m³Ciechanów, 18 March: 17.3 µg/m³Ciechanów, 19 March: 19.3 µg/m³Ciechanów, 20 March: 16.1 µg/m³Ciechanów, 21 March: 11.2 µg/m³Ciechanów, 22 March: 19.8 µg/m³Ciechanów, 23 March: 32.5 µg/m³, 2.2× its usual 14.9Ciechanów, 24 March: 39.6 µg/m³, 2.6× its usual 15.4Ciechanów, 25 March: 19.9 µg/m³Ciechanów, 26 March: 8.1 µg/m³Ciechanów, 27 March: 8.0 µg/m³Ciechanów, 28 March: 9.5 µg/m³KaliszKalisz, 15 March: 23.7 µg/m³Kalisz, 16 March: 24.9 µg/m³Kalisz, 17 March: 24.7 µg/m³Kalisz, 18 March: 42.9 µg/m³Kalisz, 19 March: 50.1 µg/m³Kalisz, 20 March: 49.4 µg/m³Kalisz, 21 March: 35.6 µg/m³Kalisz, 22 March: 40.2 µg/m³Kalisz, 23 March: 37.5 µg/m³Kalisz, 24 March: 66.8 µg/m³, 2.7× its usual 25.1Kalisz, 25 March: 32.4 µg/m³Kalisz, 26 March: 14.8 µg/m³Kalisz, 27 March: 18.4 µg/m³Kalisz, 28 March: 20.7 µg/m³WłocławekWłocławek, 15 March: 20.5 µg/m³Włocławek, 16 March: 20.5 µg/m³Włocławek, 17 March: 27.9 µg/m³Włocławek, 18 March: 27.5 µg/m³Włocławek, 19 March: 35.0 µg/m³Włocławek, 20 March: 29.3 µg/m³Włocławek, 21 March: 23.2 µg/m³Włocławek, 22 March: 23.9 µg/m³Włocławek, 23 March: 29.5 µg/m³Włocławek, 24 March: 50.1 µg/m³, 2.2× its usual 22.7Włocławek, 25 March: 28.1 µg/m³Włocławek, 26 March: 12.0 µg/m³Włocławek, 27 March: 12.5 µg/m³Włocławek, 28 March: 14.4 µg/m³PoznańPoznań, 15 March: 13.9 µg/m³Poznań, 16 March: 17.5 µg/m³Poznań, 17 March: 11.2 µg/m³Poznań, 18 March: 25.8 µg/m³Poznań, 19 March: 28.5 µg/m³Poznań, 20 March: 33.7 µg/m³Poznań, 21 March: 21.5 µg/m³Poznań, 22 March: 27.7 µg/m³Poznań, 23 March: 32.1 µg/m³Poznań, 24 March: 50.0 µg/m³, 2.9× its usual 17.4Poznań, 25 March: 21.5 µg/m³Poznań, 26 March: 10.3 µg/m³Poznań, 27 March: 12.2 µg/m³Poznań, 28 March: 19.8 µg/m³LublinLublin, 15 March: 15.6 µg/m³Lublin, 16 March: 24.5 µg/m³Lublin, 17 March: 15.3 µg/m³Lublin, 18 March: 21.8 µg/m³Lublin, 19 March: 28.8 µg/m³Lublin, 20 March: 38.3 µg/m³Lublin, 21 March: 25.6 µg/m³Lublin, 22 March: 18.9 µg/m³Lublin, 23 March: 26.2 µg/m³Lublin, 24 March: 43.9 µg/m³, 2.3× its usual 19.5Lublin, 25 March: 27.2 µg/m³Lublin, 26 March: 12.5 µg/m³Lublin, 27 March: 9.0 µg/m³Lublin, 28 March: 13.7 µg/m³KrosnoKrosno, 15 March: 18.0 µg/m³Krosno, 16 March: no readingKrosno, 17 March: 19.0 µg/m³Krosno, 18 March: no readingKrosno, 19 March: no readingKrosno, 20 March: no readingKrosno, 21 March: no readingKrosno, 22 March: no readingKrosno, 23 March: no readingKrosno, 24 March: 41.8 µg/m³, 3.7× its usual 11.3Krosno, 25 March: no readingKrosno, 26 March: no readingKrosno, 27 March: no readingKrosno, 28 March: no readingAugustówAugustów, 15 March: 21.0 µg/m³Augustów, 16 March: 24.4 µg/m³Augustów, 17 March: 29.9 µg/m³Augustów, 18 March: 16.2 µg/m³Augustów, 19 March: 13.5 µg/m³Augustów, 20 March: 13.5 µg/m³Augustów, 21 March: 8.6 µg/m³Augustów, 22 March: 15.4 µg/m³Augustów, 23 March: 20.7 µg/m³Augustów, 24 March: 41.5 µg/m³, 2.5× its usual 16.7Augustów, 25 March: 29.5 µg/m³Augustów, 26 March: 9.8 µg/m³Augustów, 27 March: 8.7 µg/m³Augustów, 28 March: 11.9 µg/m³KrakówKraków, 15 March: 19.8 µg/m³Kraków, 16 March: 25.7 µg/m³Kraków, 17 March: 21.8 µg/m³Kraków, 18 March: 21.7 µg/m³Kraków, 19 March: 25.2 µg/m³Kraków, 20 March: 35.4 µg/m³Kraków, 21 March: 15.0 µg/m³Kraków, 22 March: 22.4 µg/m³Kraków, 23 March: 21.9 µg/m³Kraków, 24 March: 40.5 µg/m³, 2.2× its usual 18.8Kraków, 25 March: 30.1 µg/m³Kraków, 26 March: 11.1 µg/m³Kraków, 27 March: 11.2 µg/m³Kraków, 28 March: 26.8 µg/m³KielceKielce, 15 March: 21.9 µg/m³Kielce, 16 March: 28.2 µg/m³Kielce, 17 March: 26.7 µg/m³Kielce, 18 March: 22.4 µg/m³Kielce, 19 March: 36.0 µg/m³Kielce, 20 March: 32.4 µg/m³Kielce, 21 March: 18.3 µg/m³Kielce, 22 March: 17.4 µg/m³Kielce, 23 March: 25.1 µg/m³Kielce, 24 March: 40.3 µg/m³, 2.2× its usual 18.4Kielce, 25 March: 36.8 µg/m³Kielce, 26 March: 8.2 µg/m³Kielce, 27 March: 9.1 µg/m³Kielce, 28 March: 14.2 µg/m³LegionowoLegionowo, 15 March: 20.9 µg/m³Legionowo, 16 March: 25.9 µg/m³Legionowo, 17 March: 15.5 µg/m³Legionowo, 18 March: 26.8 µg/m³Legionowo, 19 March: 25.0 µg/m³Legionowo, 20 March: 28.8 µg/m³Legionowo, 21 March: 18.3 µg/m³Legionowo, 22 March: 23.7 µg/m³Legionowo, 23 March: 31.8 µg/m³Legionowo, 24 March: 39.7 µg/m³, 2.2× its usual 18.0Legionowo, 25 March: 24.0 µg/m³Legionowo, 26 March: 9.7 µg/m³Legionowo, 27 March: 9.2 µg/m³Legionowo, 28 March: 16.9 µg/m³15 Mar171921232527
The 60 cities with the highest readings of 362, 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
BeerselFlanders, Belgium5 48.223 March5.39.1×
CambridgeEngland, United Kingdom4 44.523 March4.18.9×
OverijseFlanders, Belgium5 45.023 March5.97.6×
OlpeNorth Rhine-Westphalia, Germany5 38.420 March5.96.5×
Flémalle-HauteWallonia, Belgium3 34.920 March5.46.5×
LiverpoolEngland, United Kingdom2 44.421 March7.06.3×
HaarlemNorth Holland, The Netherlands4 50.323 March8.46.0×
GreystonesLeinster, Ireland1 30.821 March5.25.9×
JumetWallonia, Belgium3 29.420 March4.35.9×
CalaisHauts-de-France, France4 51.223 March8.95.8×
SaltashEngland, United Kingdom1 28.821 March4.25.8×
ChartresCentre-Val de Loire, France5 41.821 March7.55.6×
DieppeNormandy, France4 50.923 March9.25.5×
MontivilliersNormandy, France4 41.120 March7.55.5×
DroghedaLeinster, Ireland1 33.521 March6.15.5×
LeixlipLeinster, Ireland1 29.921 March5.45.5×
AndenneWallonia, Belgium1 29.320 March5.35.5×
RennesBrittany, France4 45.521 March8.55.4×
BirminghamEngland, United Kingdom3 40.522 March7.65.3×
CaenNormandy, France4 39.520 March7.55.3×
SpekeEngland, United Kingdom1 36.921 March6.95.3×
ÉtampesÎle-de-France, France3 35.821 March6.85.3×
Cluain MealaMunster, Ireland1 28.721 March5.45.3×
WestburyEngland, United Kingdom1 26.520 March4.95.3×
ŁaskŁódź Voivodeship, Poland6 136.019 March26.35.2×
WexfordLeinster, Ireland2 42.720 March8.25.2×
MonsWallonia, Belgium3 37.123 March7.15.2×
TraleeMunster, Ireland2 35.221 March6.85.2×
TournaiWallonia, Belgium2 30.423 March5.95.2×
Marche-en-FamenneWallonia, Belgium1 27.620 March5.35.2×
AmiensHauts-de-France, France4 45.023 March8.85.1×
RambouilletÎle-de-France, France5 38.921 March7.75.1×
DublinLeinster, Ireland2 33.921 March6.75.1×
VelserbroekNorth Holland, The Netherlands2 33.824 March6.65.1×
Le HavreNormandy, France5 43.920 March8.75.0×
LilleHauts-de-France, France4 39.523 March7.95.0×
BloisCentre-Val de Loire, France3 34.321 March6.85.0×
CharleroiWallonia, Belgium3 33.320 March6.65.0×
MaassluisSouth Holland, The Netherlands2 33.123 March6.65.0×
DartfordEngland, United Kingdom1 32.923 March6.65.0×
PurmerendNorth Holland, The Netherlands2 32.424 March6.55.0×
NaasLeinster, Ireland2 29.121 March5.85.0×
AnsWallonia, Belgium1 26.523 March5.35.0×
Newton AbbotEngland, United Kingdom1 25.021 March4.95.0×
VannesBrittany, France1 40.321 March8.24.9×
WiganEngland, United Kingdom1 36.621 March7.44.9×
LohjaUusimaa, Finland1 25.825 March5.34.9×
VantaaUusimaa, Finland1 25.725 March5.24.9×
QuimperBrittany, France3 39.221 March8.14.8×
AndoverEngland, United Kingdom1 27.424 March5.74.8×
RouenNormandy, France5 41.723 March8.94.7×
ZeitzSaxony-Anhalt, Germany3 37.520 March7.94.7×
's-GravenzandeSouth Holland, The Netherlands3 35.423 March7.54.7×
AlençonNormandy, France3 35.221 March7.54.7×
ZaanstadNorth Holland, The Netherlands2 33.424 March7.14.7×
RidderkerkSouth Holland, The Netherlands2 33.024 March7.04.7×
PoitiersNew Aquitaine, France3 31.722 March6.84.7×
HelsinkiUusimaa, Finland1 27.525 March5.94.7×
Saint-QuentinHauts-de-France, France4 40.323 March8.74.6×
ManchesterEngland, United Kingdom2 38.921 March8.44.6×
BexleyEngland, United Kingdom2 35.823 March7.74.6×
MontargisCentre-Val de Loire, France3 34.223 March7.44.6×
Joué-lès-ToursCentre-Val de Loire, France2 33.021 March7.24.6×
GroningenGroningen, The Netherlands2 32.524 March7.04.6×
HayesEngland, United Kingdom1 31.524 March6.84.6×
Clacton-on-SeaEngland, United Kingdom1 29.024 March6.34.6×
BeauvaisHauts-de-France, France5 38.623 March8.64.5×
BrestBrittany, France3 35.721 March8.04.5×
ToursCentre-Val de Loire, France3 34.321 March7.74.5×
MedemblikNorth Holland, The Netherlands2 32.923 March7.34.5×
RotterdamSouth Holland, The Netherlands2 32.724 March7.34.5×
CarlowLeinster, Ireland1 32.521 March7.24.5×
SpijkenisseSouth Holland, The Netherlands2 31.724 March7.04.5×
LiègeWallonia, Belgium1 29.820 March6.64.5×
Boulogne-sur-MerHauts-de-France, France4 50.723 March11.64.4×
BéthuneHauts-de-France, France4 45.923 March10.54.4×
CopenhagenCapital Region, Denmark2 41.124 March9.34.4×
PlymouthEngland, United Kingdom2 38.121 March8.64.4×
LondonEngland, United Kingdom1 34.623 March7.94.4×
PrestonEngland, United Kingdom1 29.621 March6.84.4×
WarringtonEngland, United Kingdom1 29.421 March6.74.4×
Königstein im TaunusHesse, Germany1 25.520 March5.84.4×
HeerlenLimburg, The Netherlands1 25.220 March5.74.4×
DenainHauts-de-France, France4 46.123 March10.74.3×
RoubaixHauts-de-France, France4 44.323 March10.34.3×
CherbourgNormandy, France1 36.520 March8.54.3×
Knokke-HeistFlanders, Belgium3 36.123 March8.34.3×
The HagueSouth Holland, The Netherlands2 33.323 March7.74.3×
DomontÎle-de-France, France4 31.923 March7.44.3×
AmsterdamNorth Holland, The Netherlands2 31.724 March7.44.3×
EnschedeOverijssel, The Netherlands1 30.624 March7.14.3×
FüssenBavaria, Germany4 30.121 March7.04.3×
BelfastNorthern Ireland, United Kingdom1 29.621 March6.94.3×
IrlamEngland, United Kingdom1 26.621 March6.24.3×
DunkirkHauts-de-France, France4 46.823 March11.24.2×
LouviersNormandy, France5 42.123 March10.04.2×
WismarMecklenburg-Vorpommern, Germany1 38.024 March9.14.2×
LorientBrittany, France1 37.421 March8.84.2×
OrléansCentre-Val de Loire, France4 35.921 March8.64.2×
KoksijdeFlanders, Belgium3 34.823 March8.34.2×
FriesoytheLower Saxony, Germany3 33.824 March8.14.2×
DreuxCentre-Val de Loire, France4 33.623 March8.04.2×
HeidelbergBaden-Wurttemberg, Germany2 30.921 March7.44.2×
BourgesCentre-Val de Loire, France2 29.223 March7.04.2×
NorwichEngland, United Kingdom1 25.824 March6.14.2×
LeedsEngland, United Kingdom1 34.721 March8.54.1×
ÉvreuxNormandy, France3 33.421 March8.14.1×
ItzehoeSchleswig-Holstein, Germany1 30.524 March7.54.1×
HillegomSouth Holland, The Netherlands2 29.723 March7.34.1×
FontainebleauÎle-de-France, France1 27.221 March6.74.1×
NamurWallonia, Belgium1 25.820 March6.34.1×
JarosławSubcarpathia, Poland4 59.124 March14.84.0×
ValenciennesHauts-de-France, France4 43.723 March11.04.0×
GenkFlanders, Belgium2 30.624 March7.64.0×
AachenNorth Rhine-Westphalia, Germany2 29.820 March7.54.0×
BarneveldGelderland, The Netherlands1 28.724 March7.24.0×
MyyrmäkiUusimaa, Finland1 27.225 March6.84.0×
NeversBourgogne-Franche-Comté, France1 25.722 March6.54.0×
RadomskoŁódź Voivodeship, Poland4 84.619 March21.63.9×
DouaiHauts-de-France, France2 38.620 March9.93.9×
ParisÎle-de-France, France5 36.623 March9.43.9×
StralsundMecklenburg-Vorpommern, Germany1 36.324 March9.33.9×
VisbyGotland, Sweden1 34.223 March8.83.9×
BadhoevedorpNorth Holland, The Netherlands1 31.624 March8.13.9×
BrusselsBrussels Capital, Belgium3 30.623 March7.93.9×
MolFlanders, Belgium2 29.224 March7.43.9×
Stoke-on-TrentEngland, United Kingdom1 27.921 March7.13.9×
ReadingEngland, United Kingdom1 27.524 March7.03.9×
Bourg-en-BresseAuvergne-Rhône-Alpes, France1 27.120 March7.03.9×
UtrechtUtrecht, The Netherlands2 27.023 March7.03.9×
OytenLower Saxony, Germany1 26.324 March6.73.9×
NiortNew Aquitaine, France1 25.022 March6.43.9×
OldenburgLower Saxony, Germany2 33.924 March9.03.8×
BorkenNorth Rhine-Westphalia, Germany2 32.024 March8.43.8×
AuxerreBourgogne-Franche-Comté, France2 29.322 March7.83.8×
AarschotFlanders, Belgium3 29.224 March7.63.8×
SheffieldEngland, United Kingdom2 28.521 March7.53.8×
FlensburgSchleswig-Holstein, Germany1 28.324 March7.53.8×
MalmöSkåne, Sweden1 27.924 March7.33.8×
TarnówLesser Poland, Poland5 55.624 March15.23.7×
KrosnoSubcarpathia, Poland1 41.824 March11.33.7×
IzegemFlanders, Belgium4 41.124 March11.13.7×
Velsen-ZuidNorth Holland, The Netherlands2 34.923 March9.43.7×
KarlsruheBaden-Wurttemberg, Germany3 30.721 March8.43.7×
JüchenNorth Rhine-Westphalia, Germany3 28.920 March7.83.7×
AthloneLeinster, Ireland2 28.921 March7.93.7×
LübeckSchleswig-Holstein, Germany1 27.824 March7.53.7×
ChâteaurouxCentre-Val de Loire, France1 26.422 March7.13.7×
LingenLower Saxony, Germany1 25.824 March7.03.7×
MeiningenThuringia, Germany1 25.420 March6.93.7×
NewportWales, United Kingdom1 25.121 March6.83.7×
HalstenbekSchleswig-Holstein, Germany1 37.824 March10.53.6×
SchwerinMecklenburg-Vorpommern, Germany1 35.524 March9.83.6×
RostockMecklenburg-Vorpommern, Germany1 35.224 March9.83.6×
HouthalenFlanders, Belgium3 33.924 March9.33.6×
KortrijkFlanders, Belgium3 32.523 March9.03.6×
LudwigsburgBaden-Wurttemberg, Germany2 31.221 March8.63.6×
BarnsleyEngland, United Kingdom1 31.221 March8.63.6×
ZaventemFlanders, Belgium3 30.723 March8.53.6×
ZwijndrechtFlanders, Belgium2 30.624 March8.63.6×
MaarssenUtrecht, The Netherlands2 30.324 March8.43.6×
HasseltFlanders, Belgium3 29.824 March8.33.6×
StabroekFlanders, Belgium2 29.124 March8.13.6×
KapellenFlanders, Belgium2 28.724 March7.93.6×
WillebroekFlanders, Belgium2 28.623 March7.93.6×
KielSchleswig-Holstein, Germany1 28.124 March7.73.6×
BredaNorth Brabant, The Netherlands1 26.624 March7.43.6×
WitzenhausenHesse, Germany1 25.519 March7.13.6×
MeyzieuAuvergne-Rhône-Alpes, France1 25.321 March7.13.6×
WilhelmshavenLower Saxony, Germany1 25.123 March7.03.6×
CoulommiersÎle-de-France, France5 37.423 March10.63.5×
CreilHauts-de-France, France5 36.623 March10.43.5×
HamburgHamburg, Germany1 36.324 March10.33.5×
AltenburgThuringia, Germany3 34.120 March9.83.5×
WarsteinNorth Rhine-Westphalia, Germany2 32.820 March9.43.5×
DortmundNorth Rhine-Westphalia, Germany4 32.224 March9.13.5×
LochristiFlanders, Belgium2 31.523 March9.03.5×
WeimarThuringia, Germany3 31.020 March8.93.5×
EindhovenNorth Brabant, The Netherlands2 30.624 March8.73.5×
IJsselsteinUtrecht, The Netherlands2 30.324 March8.63.5×
MechelenFlanders, Belgium3 30.123 March8.63.5×
GentFlanders, Belgium3 29.223 March8.43.5×
WiesbadenHesse, Germany1 29.020 March8.23.5×
SchwerteNorth Rhine-Westphalia, Germany2 28.420 March8.13.5×
Lauda-KönigshofenBaden-Wurttemberg, Germany2 28.020 March8.03.5×
NijmegenGelderland, The Netherlands2 27.924 March7.93.5×
DüsseldorfNorth Rhine-Westphalia, Germany2 27.124 March7.83.5×
MönchengladbachNorth Rhine-Westphalia, Germany1 25.820 March7.33.5×
HattingenNorth Rhine-Westphalia, Germany1 25.524 March7.23.5×
VenrayLimburg, The Netherlands1 25.324 March7.33.5×
SpeyerRheinland-Pfalz, Germany2 34.421 March10.13.4×
RoeselareFlanders, Belgium4 34.220 March10.13.4×
GrimbergenFlanders, Belgium3 34.123 March9.93.4×
MünsterNorth Rhine-Westphalia, Germany1 30.824 March9.03.4×
MaldegemFlanders, Belgium3 29.424 March8.73.4×
AntwerpFlanders, Belgium2 29.424 March8.73.4×
HalberstadtSaxony-Anhalt, Germany2 29.319 March8.73.4×
HattersheimHesse, Germany1 29.120 March8.53.4×
TilburgNorth Brabant, The Netherlands2 28.924 March8.63.4×
BeverenFlanders, Belgium2 28.624 March8.43.4×
WieslochBaden-Wurttemberg, Germany2 27.321 March8.03.4×
RiedstadtHesse, Germany1 27.220 March7.93.4×
GillinghamEngland, United Kingdom2 26.824 March7.83.4×
KölnNorth Rhine-Westphalia, Germany1 26.120 March7.63.4×
LörrachBaden-Wurttemberg, Germany1 25.522 March7.53.4×
LeverkusenNorth Rhine-Westphalia, Germany1 25.420 March7.53.4×
SuwałkiPodlasie, Poland2 37.723 March11.33.3×
CuxhavenLower Saxony, Germany2 31.224 March9.43.3×
GüstrowMecklenburg-Vorpommern, Germany1 30.924 March9.33.3×
ErfurtThuringia, Germany3 30.720 March9.23.3×
FuldaHesse, Germany1 28.820 March8.83.3×
ReimsGrand Est, France1 28.821 March8.63.3×
KaiserslauternRheinland-Pfalz, Germany1 27.821 March8.43.3×
EisenachThuringia, Germany1 26.720 March8.23.3×
SouthamptonEngland, United Kingdom1 26.024 March8.03.3×
SoestNorth Rhine-Westphalia, Germany1 25.920 March7.93.3×
DarmstadtHesse, Germany2 25.920 March7.83.3×
BonnNorth Rhine-Westphalia, Germany1 25.020 March7.63.3×
WeißenfelsSaxony-Anhalt, Germany3 35.720 March11.03.2×
Saint HelierSt Helier, Jersey2 32.420 March10.13.2×
HeilbronnBaden-Wurttemberg, Germany3 31.121 March9.83.2×
SchiedamSouth Holland, The Netherlands2 30.724 March9.53.2×
EvergemFlanders, Belgium3 29.824 March9.33.2×
CannockEngland, United Kingdom1 29.821 March9.33.2×
UlmBaden-Wurttemberg, Germany2 29.521 March9.33.2×
RixensartWallonia, Belgium2 29.120 March9.03.2×
WalsrodeLower Saxony, Germany1 29.024 March9.13.2×
LüneburgLower Saxony, Germany1 28.824 March8.93.2×
KehlBaden-Wurttemberg, Germany1 28.521 March8.83.2×
Cheadle HulmeEngland, United Kingdom1 28.321 March8.93.2×
Rüsselsheim am MainHesse, Germany1 28.120 March8.83.2×
EssenNorth Rhine-Westphalia, Germany2 28.024 March8.73.2×
OsnabrückLower Saxony, Germany1 27.824 March8.83.2×
BremenBremen, Germany1 27.124 March8.43.2×
JenaThuringia, Germany2 26.820 March8.53.2×
WeselNorth Rhine-Westphalia, Germany1 26.224 March8.23.2×
BensheimHesse, Germany1 25.721 March8.13.2×
HannoverLower Saxony, Germany1 25.724 March8.03.2×
LyonAuvergne-Rhône-Alpes, France1 25.521 March7.93.2×
Gorzów WielkopolskiLubusz, Poland5 51.224 March16.63.1×
MenenFlanders, Belgium4 31.520 March10.23.1×
BuxtehudeLower Saxony, Germany1 31.424 March10.13.1×
MannheimBaden-Wurttemberg, Germany2 31.320 March10.23.1×
Frankfurt am MainHesse, Germany1 30.920 March9.93.1×
EschbornHesse, Germany1 30.120 March9.63.1×
LundSkåne, Sweden1 29.924 March9.83.1×
DattelnNorth Rhine-Westphalia, Germany3 29.224 March9.53.1×
MunichBavaria, Germany1 28.821 March9.33.1×
LampertheimHesse, Germany2 28.620 March9.13.1×
VentspilsVentspils, Latvia3 28.225 March9.23.1×
OberhausenNorth Rhine-Westphalia, Germany3 27.624 March8.83.1×
DuisburgNorth Rhine-Westphalia, Germany2 27.424 March8.83.1×
JülichNorth Rhine-Westphalia, Germany1 27.320 March8.73.1×
FriedrichshafenBaden-Wurttemberg, Germany2 27.219 March8.83.1×
WuppertalNorth Rhine-Westphalia, Germany1 26.720 March8.53.1×
Hansestadt SalzwedelSaxony-Anhalt, Germany1 25.224 March8.13.1×
ŻaryLubusz, Poland7 36.621 March12.33.0×
EmdenLower Saxony, Germany2 31.324 March10.43.0×
BottropNorth Rhine-Westphalia, Germany1 30.824 March10.43.0×
Bad KreuznachRheinland-Pfalz, Germany2 30.621 March10.13.0×
MainzRheinland-Pfalz, Germany1 30.220 March10.13.0×
NeuwiedRheinland-Pfalz, Germany2 29.720 March9.93.0×
LuckenwaldeBrandenburg, Germany1 29.521 March9.83.0×
Blankenfelde-MahlowBrandenburg, Germany1 29.421 March9.93.0×
DuderstadtLower Saxony, Germany1 28.020 March9.23.0×
KoblenzRheinland-Pfalz, Germany1 27.220 March9.03.0×
ReutlingenBaden-Wurttemberg, Germany2 25.321 March8.43.0×
MichelstadtHesse, Germany1 25.321 March8.43.0×
OtwockMazovia, Poland4 68.920 March24.12.9×
PoznańGreater Poland, Poland1 50.024 March17.42.9×
ZamośćLublin, Poland3 47.924 March16.82.9×
Ludwigshafen am RheinRheinland-Pfalz, Germany2 33.521 March11.52.9×
WormsRheinland-Pfalz, Germany2 32.020 March11.12.9×
Bitterfeld-WolfenSaxony-Anhalt, Germany3 31.021 March10.62.9×
Hanau am MainHesse, Germany1 27.920 March9.72.9×
StuttgartBaden-Wurttemberg, Germany1 27.721 March9.62.9×
AugsburgBavaria, Germany1 27.421 March9.62.9×
Burg bei MagdeburgSaxony-Anhalt, Germany3 27.219 March9.32.9×
Biberach an der RißBaden-Wurttemberg, Germany2 26.819 March9.12.9×
FilderstadtBaden-Wurttemberg, Germany1 26.121 March9.02.9×
WürzburgBavaria, Germany1 26.020 March8.92.9×
PulheimNorth Rhine-Westphalia, Germany1 25.220 March8.72.9×
KreuzlingenThurgau, Switzerland1 25.019 March8.72.9×
KonstanzBaden-Wurttemberg, Germany1 25.019 March8.72.9×
HildesheimLower Saxony, Germany1 25.022 March8.62.9×
MielecSubcarpathia, Poland3 48.219 March17.02.8×
BiałystokPodlasie, Poland2 37.824 March13.72.8×
JasłoSubcarpathia, Poland1 31.524 March11.22.8×
MühlhausenThuringia, Germany2 30.020 March10.92.8×
GreizThuringia, Germany3 29.920 March10.52.8×
Halle (Saale)Saxony-Anhalt, Germany3 28.519 March10.32.8×
KrefeldNorth Rhine-Westphalia, Germany3 28.024 March10.02.8×
Limburg an der LahnHesse, Germany1 27.020 March9.72.8×
GelsenkirchenNorth Rhine-Westphalia, Germany1 25.724 March9.22.8×
TübingenBaden-Wurttemberg, Germany1 25.019 March9.02.8×
KaliszGreater Poland, Poland1 66.824 March25.12.7×
StarachowiceŚwiętokrzyskie, Poland3 49.019 March18.22.7×
Kędzierzyn-KoźleOpole Voivodeship, Poland4 41.020 March15.42.7×
BydgoszczKujawsko-Pomorskie, Poland1 39.124 March14.52.7×
MerseburgSaxony-Anhalt, Germany3 33.320 March12.42.7×
GeraThuringia, Germany3 31.920 March12.02.7×
HagenNorth Rhine-Westphalia, Germany2 30.120 March11.22.7×
StrasbourgGrand Est, France2 29.721 March11.02.7×
Schwäbisch HallBaden-Wurttemberg, Germany2 29.221 March10.92.7×
NorthamptonEngland, United Kingdom1 27.420 March10.32.7×
CardiffWales, United Kingdom1 26.021 March9.62.7×
NordhausenThuringia, Germany1 25.519 March9.52.7×
DębicaSubcarpathia, Poland3 47.724 March18.32.6×
RzeszówSubcarpathia, Poland4 43.824 March16.92.6×
CiechanówMazovia, Poland2 39.624 March15.42.6×
WittenbergSaxony-Anhalt, Germany1 30.021 March11.42.6×
KasselHesse, Germany2 26.820 March10.32.6×
BambergBavaria, Germany1 25.320 March9.62.6×
AugustówPodlasie, Poland1 41.524 March16.72.5×
OpoleOpole Voivodeship, Poland2 40.619 March16.42.5×
NiskoSubcarpathia, Poland2 39.224 March15.82.5×
GdańskPomerania, Poland2 34.623 March13.72.5×
LiepājaLiepaja, Latvia3 32.324 March13.12.5×
BernburgSaxony-Anhalt, Germany3 32.119 March12.62.5×
UnnaNorth Rhine-Westphalia, Germany2 27.220 March10.92.5×
MarktredwitzBavaria, Germany2 27.219 March10.72.5×
NancyGrand Est, France1 26.521 March10.62.5×
MagdeburgSaxony-Anhalt, Germany3 26.419 March10.42.5×
LunévilleGrand Est, France3 26.021 March10.62.5×
BurghausenBavaria, Germany1 25.321 March10.02.5×
Jelenia GóraLower Silesia, Poland3 43.219 March17.92.4×
KołobrzegWest Pomerania, Poland3 34.724 March14.32.4×
KościerzynaPomerania, Poland3 33.723 March14.22.4×
DessauSaxony-Anhalt, Germany2 30.621 March12.52.4×
EłkWarmia-Masuria, Poland2 30.623 March13.02.4×
TeltowBrandenburg, Germany2 29.024 March12.22.4×
NeubrandenburgMecklenburg-Vorpommern, Germany1 27.324 March11.32.4×
StendalSaxony-Anhalt, Germany1 26.124 March11.12.4×
ZgierzŁódź Voivodeship, Poland3 53.819 March22.92.3×
Czechowice-DziedziceSilesia, Poland2 47.320 March20.72.3×
RadomMazovia, Poland2 45.819 March19.72.3×
LublinLublin, Poland1 43.924 March19.52.3×
BrzegOpole Voivodeship, Poland3 41.624 March17.82.3×
WarsawMazovia, Poland1 34.524 March15.32.3×
PłockMazovia, Poland1 33.024 March14.62.3×
GdyniaPomerania, Poland2 31.818 March13.62.3×
Jastrzębie ZdrójSilesia, Poland1 52.520 March23.52.2×
KłodzkoLower Silesia, Poland4 52.319 March23.42.2×
WłocławekKujawsko-Pomorskie, Poland1 50.124 March22.72.2×
KrakówLesser Poland, Poland1 40.524 March18.82.2×
KielceŚwiętokrzyskie, Poland1 40.324 March18.42.2×
LegionowoMazovia, Poland1 39.724 March18.02.2×
WinterthurZurich, Switzerland2 39.422 March18.12.2×
GyőrGyőr-Moson-Sopron, Hungary1 29.321 March13.12.2×
PraguePrague, Czechia1 28.524 March12.72.2×
PtujUrban Municipality of Ptuj, Slovenia1 26.621 March12.22.2×
Zielona GóraLubusz, Poland1 25.320 March11.42.2×
PruszkówMazovia, Poland1 36.824 March17.92.1×
SzczecinWest Pomerania, Poland1 32.819 March15.92.1×
Konstancin-JeziornaMazovia, Poland1 31.024 March14.82.1×
SenicaTrnava Region, Slovakia1 26.720 March12.92.1×
SenecBratislava Region, Slovakia1 26.421 March12.32.1×
BerlinState of Berlin, Germany1 25.724 March12.02.1×
RacibórzSilesia, Poland1 35.319 March17.52.0×
WrocławLower Silesia, Poland1 35.224 March17.22.0×
Devínska Nová VesBratislava Region, Slovakia1 26.220 March12.92.0×
MalackyBratislava Region, Slovakia1 26.020 March13.02.0×

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 France

Number 9 of 54 episodes in Germany and France 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, 18 to 25 March 2026: 362 cities with PM2.5 at twice their usual or more, 18 to 25 March 2026, smogrank.com/episodes/2026-03-18-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.