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.

not rankedKalmthoutFlanders, Belgium 38 US AQI0.5 times the WHO guideline
not rankedWilnsdorfNorth Rhine-Westphalia, Germany 38 US AQI0.5 times the WHO guideline
not rankedPaduaVeneto, Italy 38 US AQI0.5 times the WHO guideline
not rankedCorinthTexas, United States 38 US AQI0.5 times the WHO guideline
not rankedCentrevilleVirginia, United States 38 US AQI0.5 times the WHO guideline
not rankedWascoIllinois, United States 38 US AQI0.5 times the WHO guideline
=1338AsprópyrgosAttica, Greece 37 US AQI0.4 times the WHO guideline▼95
=1338NovorossiyskKrasnodar Krai, Russia 37 US AQI0.4 times the WHO guideline▲834
=1338KaunasKaunas, Lithuania 37 US AQI0.4 times the WHO guideline
=1338KitamiHokkaido, Japan 37 US AQI0.4 times the WHO guideline▼868
=1338NewportWales, United Kingdom 37 US AQI0.4 times the WHO guideline▲1083
=1338DidamGelderland, The Netherlands 37 US AQI0.4 times the WHO guideline▲70
=1338NeubrandenburgMecklenburg-Vorpommern, Germany 37 US AQI0.4 times the WHO guideline▲642
=1338Bad RappenauBaden-Wurttemberg, Germany 37 US AQI0.4 times the WHO guideline▲479
=1338TraleeMunster, Ireland 37 US AQI0.4 times the WHO guideline▲819
=1338Villefranche-sur-SaôneAuvergne-Rhône-Alpes, France 37 US AQI0.4 times the WHO guideline▲302
=1338Saint-NazairePays de la Loire, France 37 US AQI0.4 times the WHO guideline▲1034
=1338Žďár nad SázavouVysocina, Czechia 37 US AQI0.4 times the WHO guideline▲251
=1338TrentoTrentino-Alto Adige, Italy 37 US AQI0.4 times the WHO guideline▲109
=1338GlenpoolOklahoma, United States 37 US AQI0.4 times the WHO guideline▲311
=1338Bay CityMichigan, United States 37 US AQI0.4 times the WHO guideline▼15
=1338AppletonWisconsin, United States 37 US AQI0.4 times the WHO guideline▼485
=1338MadisonWisconsin, United States 37 US AQI0.4 times the WHO guideline▼180
=1338ChilliwackBritish Columbia, Canada 37 US AQI0.4 times the WHO guideline▲689
not rankedPapenburgLower Saxony, Germany 37 US AQI0.4 times the WHO guideline
not rankedGriesheimHesse, Germany 37 US AQI0.4 times the WHO guideline
not rankedSaint CharlesMissouri, United States 37 US AQI0.4 times the WHO guideline
=1356MinskMinsk City, Belarus 37 US AQI0.4 times the WHO guideline▼59
=1356BrovaryKyiv Oblast, Ukraine 37 US AQI0.4 times the WHO guideline▼81
=1356AsahikawaHokkaido, Japan 37 US AQI0.4 times the WHO guideline▼939
=1356AmoraSetúbal, Portugal 37 US AQI0.4 times the WHO guideline▲588
=1356StreetEngland, United Kingdom 37 US AQI0.4 times the WHO guideline▲1261
=1356ScunthorpeEngland, United Kingdom 37 US AQI0.4 times the WHO guideline▼18
=1356HarlingenFriesland, The Netherlands 37 US AQI0.4 times the WHO guideline▲362
=1356BredaNorth Brabant, The Netherlands 37 US AQI0.4 times the WHO guideline▲249
=1356EisenzickenBurgenland, Austria 37 US AQI0.4 times the WHO guideline▲106
=1356ZelzateFlanders, Belgium 37 US AQI0.4 times the WHO guideline▲200
=1356GünzburgBavaria, Germany 37 US AQI0.4 times the WHO guideline
=1356CorkMunster, Ireland 37 US AQI0.4 times the WHO guideline▲406
=1356Cluain MealaMunster, Ireland 37 US AQI0.4 times the WHO guideline▲961
=1356ValenciennesHauts-de-France, France 37 US AQI0.4 times the WHO guideline▲285
=1356MontpellierOccitanie, France 37 US AQI0.4 times the WHO guideline▼402
=1356Novo MestoUrban Municipality of Novo Mesto, Slovenia 37 US AQI0.4 times the WHO guideline▲189
=1356PaarlWestern Cape, South Africa 37 US AQI0.4 times the WHO guideline▲139
=1356JacksonvilleFlorida, United States 37 US AQI0.4 times the WHO guideline▼120
=1356Saint JosephMissouri, United States 37 US AQI0.4 times the WHO guideline▼132
=1356MissionTexas, United States 37 US AQI0.4 times the WHO guideline▼163
=1356RichmondVirginia, United States 37 US AQI0.4 times the WHO guideline▲1211
=1356HawthorneCalifornia, United States 37 US AQI0.4 times the WHO guideline▲507
=1356Santa CruzCalifornia, United States 37 US AQI0.4 times the WHO guideline▼578
=1356WoodburnOregon, United States 37 US AQI0.4 times the WHO guideline▲99
=1356SheridanWyoming, United States 37 US AQI0.4 times the WHO guideline▲704
not rankedOdintsovoMoscow Oblast, Russia 37 US AQI0.4 times the WHO guideline
not rankedChisinauChișinău Municipality, Moldova 37 US AQI0.4 times the WHO guideline
not rankedNowy Dwór MazowieckiMazovia, Poland 37 US AQI0.4 times the WHO guideline
not rankedDiourbelDiourbel Region, Senegal 37 US AQI0.4 times the WHO guideline
not rankedWeiterstadtHesse, Germany 37 US AQI0.4 times the WHO guideline
not rankedVoerdeNorth Rhine-Westphalia, Germany 37 US AQI0.4 times the WHO guideline
not rankedLilienthalLower Saxony, Germany 37 US AQI0.4 times the WHO guideline
not rankedBad WildungenHesse, Germany 37 US AQI0.4 times the WHO guideline
not rankedStarogard GdańskiPomerania, Poland 37 US AQI0.4 times the WHO guideline
not rankedRodgauHesse, Germany 37 US AQI0.4 times the WHO guideline
not rankedNorthglennColorado, United States 37 US AQI0.4 times the WHO guideline
not rankedCollingwoodOntario, Canada 37 US AQI0.4 times the WHO guideline
=1381TimaruCanterbury, New Zealand 36 US AQI0.4 times the WHO guideline▼880
=1381ChristchurchCanterbury, New Zealand 36 US AQI0.4 times the WHO guideline▲3
=1381ThièsThies, Senegal 36 US AQI0.4 times the WHO guideline▼71
=1381MaidstoneEngland, United Kingdom 36 US AQI0.4 times the WHO guideline▲884
=1381MedemblikNorth Holland, The Netherlands 36 US AQI0.4 times the WHO guideline▲223
=1381MödlingLower Austria, Austria 36 US AQI0.4 times the WHO guideline▲492
=1381Rüsselsheim am MainHesse, Germany 36 US AQI0.4 times the WHO guideline▲177
=1381MontbéliardBourgogne-Franche-Comté, France 36 US AQI0.4 times the WHO guideline▼41
=1381LaivesTrentino-Alto Adige, Italy 36 US AQI0.4 times the WHO guideline▲636
=1381Zacatepec de HidalgoMorelos, Mexico 36 US AQI0.4 times the WHO guideline▲780
=1381WashingtonDistrict of Columbia, United States 36 US AQI0.4 times the WHO guideline▲865
=1381Oak RidgeFlorida, United States 36 US AQI0.4 times the WHO guideline▼267
=1381ColumbiaTennessee, United States 36 US AQI0.4 times the WHO guideline
=1381AshburnVirginia, United States 36 US AQI0.4 times the WHO guideline▲1184
=1381HopewellVirginia, United States 36 US AQI0.4 times the WHO guideline▲1185
=1381La VistaNebraska, United States 36 US AQI0.4 times the WHO guideline▲117
=1381MonessenPennsylvania, United States 36 US AQI0.4 times the WHO guideline▲871
=1381ModestoCalifornia, United States 36 US AQI0.4 times the WHO guideline▼368
=1381AmarilloTexas, United States 36 US AQI0.4 times the WHO guideline
=1381AuburnWashington, United States 36 US AQI0.4 times the WHO guideline▲92
=1381KentWashington, United States 36 US AQI0.4 times the WHO guideline▼56
=1381LyndenWashington, United States 36 US AQI0.4 times the WHO guideline▲487
=1381LangfordBritish Columbia, Canada 36 US AQI0.4 times the WHO guideline▲197
not rankedTörökszentmiklósJász-Nagykun-Szolnok, Hungary 36 US AQI0.4 times the WHO guideline
not rankedSiavongaSouthern Province, Zambia 36 US AQI0.4 times the WHO guideline
not rankedSneekFriesland, The Netherlands 36 US AQI0.4 times the WHO guideline
not rankedNeckarsulmBaden-Wurttemberg, Germany no daily values yet36 US AQI0.4 times the WHO guideline
not rankedKarbenHesse, Germany 36 US AQI0.4 times the WHO guideline
not rankedHudeLower Saxony, Germany 36 US AQI0.4 times the WHO guideline
not rankedGochNorth Rhine-Westphalia, Germany 36 US AQI0.4 times the WHO guideline
not rankedDearborn HeightsMichigan, United States 36 US AQI0.4 times the WHO guideline
not rankedCliftonNew Jersey, United States 36 US AQI0.4 times the WHO guideline
not rankedCutler BayFlorida, United States 36 US AQI0.4 times the WHO guideline
not rankedSuitland-Silver HillMaryland, United States 36 US AQI0.4 times the WHO guideline
=1404AthensAttica, Greece 36 US AQI0.4 times the WHO guideline▼174
=1404Piatra NeamţNeamț County, Romania 36 US AQI0.4 times the WHO guideline▲98

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).