Air quality by city — Atmy

Cities with readings from at least three sensors passing validation at snapshot preparation. These are dated observations, not continuously updated values.

Data snapshot: . The summary is refreshed every 15 minutes.

City ranking

Metric: PM2.5, µg/m³ · Color scale: EPA AQI · October 21, 2026 · 00:00–24:00 UTC

LowModerateElevatedHighVery highExtremely high

Germany

1Würzburg →27 µg/m³2Siegen →23 µg/m³3Ulm →22 µg/m³4Bremerhaven →21 µg/m³5Leipzig →21 µg/m³6Hanover →21 µg/m³7Bielefeld →20 µg/m³8Bremen →20 µg/m³9Hamburg →20 µg/m³10Flensburg →19 µg/m³11Wolfsburg →19 µg/m³12Magdeburg →18 µg/m³13Wiesbaden →17 µg/m³14Brunswick →16 µg/m³15Halle (Saale) →16 µg/m³16Rostock →15 µg/m³17Oldenburg →15 µg/m³18Potsdam →15 µg/m³19Heilbronn →14 µg/m³20Salzgitter →14 µg/m³21Lübeck →14 µg/m³22Berlin →14 µg/m³23Hildesheim →13 µg/m³24Kiel →13 µg/m³25Krefeld →13 µg/m³26Chemnitz →12 µg/m³27Paderborn →12 µg/m³28Göttingen →12 µg/m³29Frankfurt →11 µg/m³30Osnabrück →11 µg/m³31Ludwigshafen am Rhein →11 µg/m³32Kassel →11 µg/m³33Cottbus - Chosebuz →11 µg/m³34Dortmund →11 µg/m³35Trier →11 µg/m³36Freiburg im Breisgau →11 µg/m³37Munich →10 µg/m³38Recklinghausen →10 µg/m³39Hanau →10 µg/m³40Gütersloh →10 µg/m³41Darmstadt →10 µg/m³42Karlsruhe →10 µg/m³43Fulda →10 µg/m³44Leverkusen →10 µg/m³45Erfurt →9 µg/m³46Dresden →9 µg/m³47Offenbach am Main →9 µg/m³48Cologne →9 µg/m³49Münster →8 µg/m³50Mannheim →8 µg/m³51Mainz →8 µg/m³52Gelsenkirchen →8 µg/m³53Dusseldorf →8 µg/m³54Heidelberg →8 µg/m³55Stuttgart →7 µg/m³56Jena →7 µg/m³57Reutlingen →7 µg/m³58Hamm →7 µg/m³59Bergisch Gladbach →6 µg/m³60Moers →6 µg/m³61Bochum →6 µg/m³62Neuss →6 µg/m³63Kaiserslautern →6 µg/m³64Bonn →6 µg/m³65Wuppertal →6 µg/m³66Oberhausen →6 µg/m³67Essen →6 µg/m³68Hagen →6 µg/m³69Bottrop →6 µg/m³70Koblenz →5 µg/m³71Mülheim an der Ruhr →5 µg/m³72Pforzheim →5 µg/m³73Solingen →5 µg/m³74Saarbrücken →5 µg/m³75Mönchengladbach →4 µg/m³76Herne →4 µg/m³77Remscheid →3 µg/m³78Aachen →2 µg/m³

Austria

1Graz →33 µg/m³2Linz →10 µg/m³3Salzburg →10 µg/m³4Vienna →7 µg/m³5Innsbruck →5 µg/m³6Klagenfurt →4 µg/m³

Russia

1Chita →19 µg/m³2Nizhny Novgorod →17 µg/m³3Krasnoyarsk →13 µg/m³4Ivanovo →8 µg/m³5Moscow →8 µg/m³6Saint Petersburg →7 µg/m³7Krasnodar →7 µg/m³8Krasnogorsk →6 µg/m³9Odintsovo →6 µg/m³10Novorossiysk →6 µg/m³11Cherepovets →6 µg/m³12Vidnoye →6 µg/m³13Podolsk →5 µg/m³14Kazan →4 µg/m³15Volgograd →4 µg/m³16Tolyatti →3 µg/m³17Omsk →2 µg/m³18Yekaterinburg →2 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Ireland

1Dublin →2 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Romania

1Bucharest →21 µg/m³2Cluj-Napoca →13 µg/m³3Iași →6 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Serbia

1Zaječar →27 µg/m³2Čačak →17 µg/m³3Kruševac →17 µg/m³4Novi Sad →14 µg/m³5Kikinda →14 µg/m³6Pančevo →13 µg/m³7Niš →12 µg/m³8Belgrade →11 µg/m³9Subotica →10 µg/m³10Jagodina →10 µg/m³11Kragujevac →8 µg/m³12Smederevo →7 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Bulgaria

1Burgas →42 µg/m³2Vidin →20 µg/m³3Pazardzhik →13 µg/m³4Haskovo →12 µg/m³5Shumen →12 µg/m³6Varna →11 µg/m³7Plovdiv →11 µg/m³8Pleven →11 µg/m³9Stara Zagora →11 µg/m³10Sliven →10 µg/m³11Ruse →10 µg/m³12Veliko Tarnovo →9 µg/m³13Lovech →8 µg/m³14Montana →8 µg/m³15Gabrovo →8 µg/m³16Blagoevgrad →8 µg/m³17Vratsa →7 µg/m³18Sofia →7 µg/m³19Kyustendil →6 µg/m³20Pernik →5 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Poland

1Wałbrzych →15 µg/m³2Tychy →14 µg/m³3Szczecin →14 µg/m³4Piekary Sląskie →14 µg/m³5Katowice →13 µg/m³6Zielona Gora →13 µg/m³7Rybnik →13 µg/m³8Krakow →13 µg/m³9Opole →12 µg/m³10Legnica →12 µg/m³11Lublin →12 µg/m³12Częstochowa →12 µg/m³13Dąbrowa Gornicza →11 µg/m³14Radom →10 µg/m³15Sopot →10 µg/m³16Kielce →10 µg/m³17Wrocław →10 µg/m³18Rzeszow →10 µg/m³19Bydgoszcz →10 µg/m³20Łodz →9 µg/m³21Poznan →9 µg/m³22Warsaw →9 µg/m³23Gdansk →9 µg/m³24Jaworzno →9 µg/m³25Ruda Sląska →9 µg/m³26Torun →9 µg/m³27Gliwice →8 µg/m³28Gdynia →8 µg/m³29Jelenia Gora →7 µg/m³30Bielsko-Biała →7 µg/m³31Olsztyn →6 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Belgium

1Leuven →5 µg/m³2Bruges →4 µg/m³3Antwerp →4 µg/m³4Ghent →3 µg/m³5Kortrijk →3 µg/m³6Liège →3 µg/m³7Brussels →3 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Netherlands

1Breda →42 µg/m³2Groningen →19 µg/m³3Nijmegen →16 µg/m³4Emmen →13 µg/m³5Enschede →12 µg/m³6Tilburg →12 µg/m³7Assen →10 µg/m³8Zwolle →9 µg/m³9Lelystad →8 µg/m³10Deventer →7 µg/m³11Almere →6 µg/m³12Roermond →6 µg/m³13Helmond →5 µg/m³14Maastricht →5 µg/m³15Amersfoort →5 µg/m³16Eindhoven →5 µg/m³17Venlo →4 µg/m³18Heerlen →3 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Czechia

1Česke Budějovice →23 µg/m³2Pilsen →19 µg/m³3Ostrava →14 µg/m³4Karlovy Vary →12 µg/m³5Prague →10 µg/m³6Liberec →9 µg/m³7Jihlava →9 µg/m³8Hradec Kralove →8 µg/m³9Brno →6 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

North Macedonia

1Skopje →11 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

United Arab Emirates

1Dubai →35 µg/m³

United States

1Chicago →25 µg/m³2Madison →18 µg/m³3Houston →13 µg/m³4Seattle →10 µg/m³5Portland →9 µg/m³6Austin →9 µg/m³7Bellevue →9 µg/m³8Cary →3 µg/m³9Phoenix →3 µg/m³10Pasadena →3 µg/m³11Los Angeles →3 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Great Britain

1Aberdeen →50 µg/m³2Bristol →9 µg/m³3City of London →6 µg/m³4Dundee →2 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Kazakhstan

1Almaty →19 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Canada

1Calgary →3 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Thailand

1Rangsit →16 µg/m³2Bangkok →16 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

South Africa

1uMhlathuze Local Municipality →10 µg/m³2KwaDukuza Local Municipality →8 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Singapore

1Singapore →49 µg/m³

Italy

1Padua →26 µg/m³2Reggio nell'Emilia →12 µg/m³3Parma →11 µg/m³4Bolzano →11 µg/m³5Vicenza →8 µg/m³6Treviso →7 µg/m³7Milan →7 µg/m³8Piacenza →7 µg/m³9Catania →6 µg/m³10Bologna →6 µg/m³11Trento →5 µg/m³12Lecce →5 µg/m³13Trieste →5 µg/m³14Verona →5 µg/m³15Aosta →4 µg/m³16Pordenone / Pordenon →4 µg/m³17Florence →4 µg/m³18Cremona →4 µg/m³19Rome →4 µg/m³20Naples →3 µg/m³21Monza →3 µg/m³22Arezzo →2 µg/m³23Turin →1 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Australia

1Sydney →3 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Switzerland

1Winterthur →5 µg/m³2Bern →2 µg/m³3Lausanne →2 µg/m³4Zurich →2 µg/m³5Geneva →2 µg/m³6Basel →1 µg/m³

Spain

1Palma de Mallorca →3 µg/m³2Barcelona →3 µg/m³3Gijon →2 µg/m³4Mataro →1 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

France

1Strasbourg →10 µg/m³2Villeurbanne →5 µg/m³3Lyon →3 µg/m³4Mulhouse →3 µg/m³5Brest →3 µg/m³6Paris →3 µg/m³7Bordeaux →2 µg/m³8Boulogne-Billancourt →2 µg/m³9Saint-Denis →2 µg/m³10Toulouse →2 µg/m³11Rennes →2 µg/m³12Annecy →2 µg/m³13Pau →2 µg/m³14Orleans →2 µg/m³15Montreuil →1 µg/m³16Montpellier →1 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Pakistan

1Sialkot →92 µg/m³2Islamabad Capital Territory →56 µg/m³3Karachi →43 µg/m³4Quetta City Tehsil →36 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Moldova

1Chișinău →11 µg/m³

Hungary

1Nyiregyhaza →23 µg/m³2Pecs →11 µg/m³3Debrecen →11 µg/m³4Gyor →10 µg/m³5Zalaegerszeg →10 µg/m³6Budapest →8 µg/m³7Miskolc →8 µg/m³8Veszprem →8 µg/m³9Szombathely →7 µg/m³10Eger →6 µg/m³11Tatabanya →6 µg/m³12Szekesfehervar →4 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Belarus

1Minsk →8 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Kyrgyzstan

1Bishkek City →39 µg/m³

Armenia

1Yerevan →15 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Nepal

1Kathmandu →30 µg/m³

Ukraine

1Kyiv →9 µg/m³2Brovary →9 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Sweden

1Uppsala →8 µg/m³2Stockholm →7 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Slovakia

1Banska Bystrica →8 µg/m³2Bratislava →8 µg/m³3Žilina →4 µg/m³4Trenčin →3 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Luxembourg

1Luxembourg →4 µg/m³

Slovenia

1Maribor →11 µg/m³2Ljubljana →9 µg/m³

Latvia

1Riga →4 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Bosnia and Herzegovina

1Tuzla →26 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Bonaire, Sint Eustatius and Saba

1Kralendijk →3 µg/m³

Brazil

1São Leopoldo →5 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Croatia

1Zagreb →16 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Greece

1Thessaloniki →9 µg/m³

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Albania

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Argentina

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Azerbaijan

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Cambodia

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

China

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Congo - Kinshasa

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Cyprus

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Denmark

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Dominican Republic

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Estonia

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Finland

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Georgia

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Ghana

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Guadeloupe

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Honduras

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

India

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Indonesia

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Israel

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Japan

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Laos

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Lebanon

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Liberia

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Lithuania

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Malaysia

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Malta

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Mexico

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Mongolia

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Montenegro

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Morocco

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

New Zealand

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Nigeria

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Norway

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Philippines

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Portugal

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Saudi Arabia

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Senegal

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Taiwan

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Türkiye

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Uzbekistan

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Vietnam

More large cities with sensors on the map: they have sensors at fewer than four places 500 m apart, so there is no city value as in the Data Hub yet.

Methodology and data sources · City ranking · API · Data terms