All 2,645 cities by PM2.5, last 24 hours

Every city with enough measurements in this window, worst first.

CPCB in India: no readings since 12 Oct (488 monitors). EEA and Catalonia Medi Ambient I Sostenibilitat in Spain: no readings since 13 Oct (336 monitors). Their cities are missing from this board, not clean.

Hide the 1,153 cities with only 1–2 sensors

These cities have only one or two low-cost sensors, and one cheap unit can read well off, so they take no rank. They sit at their place by value, marked –, and every ranked city keeps its number.

=2205CreweEngland, United Kingdom 20 US AQI0.2 times the WHO guideline▲185
=2205BarnsleyEngland, United Kingdom 20 US AQI0.2 times the WHO guideline▼490
=2205ZeewoldeFlevoland, The Netherlands 20 US AQI0.2 times the WHO guideline
=2205SoestUtrecht, The Netherlands 20 US AQI0.2 times the WHO guideline
=2205EindhovenNorth Brabant, The Netherlands 20 US AQI0.2 times the WHO guideline
=2205Almere StadFlevoland, The Netherlands 20 US AQI0.2 times the WHO guideline▼893
=2205BruggeFlanders, Belgium 20 US AQI0.2 times the WHO guideline▼566
=2205Mont-de-MarsanNew Aquitaine, France 20 US AQI0.2 times the WHO guideline▼124
=2205La Ferté-MacéNormandy, France 20 US AQI0.2 times the WHO guideline▲226
=2205CoulommiersÎle-de-France, France 20 US AQI0.2 times the WHO guideline▼590
=2205AltoonaWisconsin, United States 20 US AQI0.2 times the WHO guideline▼1460
=2205LamarColorado, United States 20 US AQI0.2 times the WHO guideline▲175
=2205Rapid CitySouth Dakota, United States 20 US AQI0.2 times the WHO guideline▼63
=2205PullmanWashington, United States 20 US AQI0.2 times the WHO guideline▲375
=2205GilletteWyoming, United States 20 US AQI0.2 times the WHO guideline▲86
=2205AnchorageAlaska, United States 20 US AQI0.2 times the WHO guideline▲345
=2205SaskatoonSaskatchewan, Canada 20 US AQI0.2 times the WHO guideline▲438
not rankedNovosibirskNovosibirsk Oblast, Russia 20 US AQI0.2 times the WHO guideline
not rankedHaywards HeathEngland, United Kingdom 20 US AQI0.2 times the WHO guideline
not rankedVlissingenZeeland, The Netherlands 20 US AQI0.2 times the WHO guideline
not rankedPutteFlanders, Belgium 20 US AQI0.2 times the WHO guideline
not rankedLokerenFlanders, Belgium 20 US AQI0.2 times the WHO guideline
not rankedLilleFlanders, Belgium 20 US AQI0.2 times the WHO guideline
not rankedTelgteNorth Rhine-Westphalia, Germany 20 US AQI0.2 times the WHO guideline
not rankedSchönebeckSaxony-Anhalt, Germany 20 US AQI0.2 times the WHO guideline
not rankedHessisch OldendorfLower Saxony, Germany 20 US AQI0.2 times the WHO guideline
not rankedHarsewinkelNorth Rhine-Westphalia, Germany 20 US AQI0.2 times the WHO guideline
not rankedGummersbachNorth Rhine-Westphalia, Germany 20 US AQI0.2 times the WHO guideline
not rankedBruchsalBaden-Wurttemberg, Germany 20 US AQI0.2 times the WHO guideline
not rankedBergheimNorth Rhine-Westphalia, Germany 20 US AQI0.2 times the WHO guideline
not rankedJenksOklahoma, United States 20 US AQI0.2 times the WHO guideline
not rankedYorba LindaCalifornia, United States 20 US AQI0.2 times the WHO guideline
=2225KazanTatarstan Republic, Russia 19 US AQI0.2 times the WHO guideline▼626
=2225RostusaMavrovo and Rostuša, North Macedonia 19 US AQI0.2 times the WHO guideline▼390
=2225SalisburySouth Australia, Australia 19 US AQI0.2 times the WHO guideline▼571
=2225CacémLisbon, Portugal 19 US AQI0.2 times the WHO guideline▲71
=2225SunderlandEngland, United Kingdom 19 US AQI0.2 times the WHO guideline▼801
=2225Habay-la-VieilleWallonia, Belgium 19 US AQI0.2 times the WHO guideline▼246
=2225WittenbergeBrandenburg, Germany 19 US AQI0.2 times the WHO guideline▼72
=2225WinnendenBaden-Wurttemberg, Germany 19 US AQI0.2 times the WHO guideline
=2225NürtingenBaden-Wurttemberg, Germany 19 US AQI0.2 times the WHO guideline▼216
=2225Landau in der PfalzRheinland-Pfalz, Germany 19 US AQI0.2 times the WHO guideline▲201
=2225ReimsGrand Est, France 19 US AQI0.2 times the WHO guideline▼497
=2225NiortNew Aquitaine, France 19 US AQI0.2 times the WHO guideline▲51
=2225Cesson-SévignéBrittany, France 19 US AQI0.2 times the WHO guideline▲96
=2225BastiaCorsica, France 19 US AQI0.2 times the WHO guideline▼303
=2225AngoulêmeNew Aquitaine, France 19 US AQI0.2 times the WHO guideline▼344
=2225AlençonNormandy, France 19 US AQI0.2 times the WHO guideline▼301
=2225SolofraCampania, Italy 19 US AQI0.2 times the WHO guideline▼731
=2225RockvilleMaryland, United States 19 US AQI0.2 times the WHO guideline
=2225PhoenixArizona, United States 19 US AQI0.2 times the WHO guideline▼229
=2225ColusaCalifornia, United States 19 US AQI0.2 times the WHO guideline▼654
=2225AlbuquerqueNew Mexico, United States 19 US AQI0.2 times the WHO guideline▼488
=2225MoscowIdaho, United States 19 US AQI0.2 times the WHO guideline▲300
=2225GreenOregon, United States 19 US AQI0.2 times the WHO guideline▲3
=2225RedmondOregon, United States 19 US AQI0.2 times the WHO guideline▲157
=2225SilvertonOregon, United States 19 US AQI0.2 times the WHO guideline▲63
=2225HiloHawaii, United States 19 US AQI0.2 times the WHO guideline
not rankedKrasnoarmeyskMoscow Oblast, Russia 19 US AQI0.2 times the WHO guideline
not rankedSteinhagenNorth Rhine-Westphalia, Germany 19 US AQI0.2 times the WHO guideline
not rankedMindenNorth Rhine-Westphalia, Germany 19 US AQI0.2 times the WHO guideline
not rankedFürstenfeldbruckBavaria, Germany 19 US AQI0.2 times the WHO guideline
not rankedEitorfNorth Rhine-Westphalia, Germany 19 US AQI0.2 times the WHO guideline
not rankedCarquefouPays de la Loire, France 19 US AQI0.2 times the WHO guideline
not rankedSabadellCatalonia, Spain 19 US AQI0.2 times the WHO guideline
not rankedSão João da Boa VistaSão Paulo, Brazil 19 US AQI0.2 times the WHO guideline
not rankedSycamoreIllinois, United States 19 US AQI0.2 times the WHO guideline
not rankedWisconsin RapidsWisconsin, United States 19 US AQI0.2 times the WHO guideline
=2251Saint PetersburgSt.-Petersburg, Russia 19 US AQI0.2 times the WHO guideline▲394
=2251ReutovMoscow Oblast, Russia 19 US AQI0.2 times the WHO guideline
=2251VantaaUusimaa, Finland 19 US AQI0.2 times the WHO guideline▲340
=2251Coffs HarbourNew South Wales, Australia 19 US AQI0.2 times the WHO guideline▼1858
=2251WrexhamWales, United Kingdom 19 US AQI0.2 times the WHO guideline▲304
=2251PenicuikScotland, United Kingdom 19 US AQI0.2 times the WHO guideline▲388
=2251HoensbroekLimburg, The Netherlands 19 US AQI0.2 times the WHO guideline▲118
=2251Sint-TruidenFlanders, Belgium 19 US AQI0.2 times the WHO guideline▼99
=2251SeevetalLower Saxony, Germany 19 US AQI0.2 times the WHO guideline
=2251NiederkasselNorth Rhine-Westphalia, Germany 19 US AQI0.2 times the WHO guideline▼241
=2251HerfordNorth Rhine-Westphalia, Germany 19 US AQI0.2 times the WHO guideline
=2251GüterslohNorth Rhine-Westphalia, Germany 19 US AQI0.2 times the WHO guideline
=2251GothaThuringia, Germany 19 US AQI0.2 times the WHO guideline
=2251Bad BelzigBrandenburg, Germany 19 US AQI0.2 times the WHO guideline▲251
=2251VichyAuvergne-Rhône-Alpes, France 19 US AQI0.2 times the WHO guideline▼525
=2251Le MansPays de la Loire, France 19 US AQI0.2 times the WHO guideline▼116
=2251ConcarneauBrittany, France 19 US AQI0.2 times the WHO guideline
=2251SalernoCampania, Italy 19 US AQI0.2 times the WHO guideline▼878
=2251ParmaEmilia-Romagna, Italy 19 US AQI0.2 times the WHO guideline▼235
=2251BarBar, Montenegro 19 US AQI0.2 times the WHO guideline▲353
=2251FolsomCalifornia, United States 19 US AQI0.2 times the WHO guideline▼927
=2251Palo AltoCalifornia, United States 19 US AQI0.2 times the WHO guideline▼199
=2251Gardnerville RanchosNevada, United States 19 US AQI0.2 times the WHO guideline▼315
=2251Coeur d'AleneIdaho, United States 19 US AQI0.2 times the WHO guideline▲162
=2251AberdeenWashington, United States 19 US AQI0.2 times the WHO guideline▼51
=2251WenatcheeWashington, United States 19 US AQI0.2 times the WHO guideline▲193
not rankedOrëlOryol oblast, Russia 19 US AQI0.2 times the WHO guideline
not rankedMārupeMārupe, Latvia 19 US AQI0.2 times the WHO guideline
not rankedWaddinxveenSouth Holland, The Netherlands 19 US AQI0.2 times the WHO guideline
not rankedGemertNorth Brabant, The Netherlands 19 US AQI0.2 times the WHO guideline
not rankedHerzeleFlanders, Belgium 19 US AQI0.2 times the WHO guideline
not rankedHerentFlanders, Belgium 19 US AQI0.2 times the WHO guideline

What stands behind each figure: Checked at 2+ sites One reference monitor Low-cost sensors 1–2 sensors, not ranked About these marks

Low-cost sensors: consumer units, counted only in cities with no government-grade monitor; they read close to reference monitors on the whole, but 15 to 25% high in humid air. How we use them.

Good0–50

Moderate51–100

Unhealthy for sensitive groups101–150

Unhealthy151–200

Very unhealthy201–300

Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Not covered: the government monitoring networks of China, Turkey and Iran, which publish only on their own websites. We are building the reader for China's network. The networks of Turkey and Iran don't answer requests from outside their countries, so we can't read them. Most cities there are missing from this board, not clean. Why.

Use this board

SmogRank, all cities ranked by mean PM2.5 (µg/m³), last 24 hours to 14 Oct 2026, 05:00 UTC: each city's mean of its hourly values, cities measured in 18 or more of the 24 hours. Monitor data from national networks via OpenAQ and the publishers listed at smogrank.com/sources. smogrank.com/rankings. Ranked on low-cost sensors, with no reference monitor in the city: #1 Gaur, Madhesh, #2 Kuala Lumpur, #4 Multan, #5 Faisalabad, #6 Gujranwala, #7 Lilongwe, #8 Lahore, #9 Dhaka and #10 Bahawalpur. Some values from Sensor.Community, ODbL. Some readings from Vietnam's government monitors; Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Aurassure; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Umhverfisstofnun (Environment Agency of Iceland), no reuse terms published.

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

Updated 2026-10-14 05:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Vietnam's government monitors; Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Aurassure; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Umhverfisstofnun (Environment Agency of Iceland), no reuse terms published (why we use them).