All 2,894 cities by PM2.5, last 7 days

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 show older figures or are missing from this board, not clean.

Hide the 297 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.

=1326ObamaFukui, Japan 43 US AQI▲139
=1326NagasakiNagasaki, Japan 43 US AQI▲19
=1326KitahamaShiga, Japan 43 US AQI▲217
=1326Kamojimachō-jōgejimaTokushima, Japan 43 US AQI▲107
=1326Izumolast full day 11 OctShimane, Japan 43 US AQI▼88
=1326KariyaHyōgo, Japan 43 US AQI▲25
=1326NagatoYamaguchi, Japan 43 US AQI▲219
=1326MiuraKanagawa, Japan 43 US AQI▲183
=1326YachimataChiba, Japan 43 US AQI▲184
=1326SendaiMiyagi, Japan 43 US AQI▲144
=1326SingletonNew South Wales, Australia 43 US AQI▲146
=1326San Pawl il-BaħarSaint Paul’s Bay, Malta 43 US AQI▼208
=1326NeubrandenburgMecklenburg-Vorpommern, Germany 43 US AQI▼392
=1326BayonneNew Aquitaine, France 43 US AQI▲237
=1326České BudějoviceSouth Bohemian Region, Czechia 43 US AQI▼6
=1326Nakło nad NoteciąKujawsko-Pomorskie, Poland 43 US AQI▼111
=1326Zagorje ob SaviMunicipality of Zagorje ob Savi, Slovenia 43 US AQI▼431
=1326SchrieverLouisiana, United States 43 US AQI▲156
=1326NilesIllinois, United States 43 US AQI▲160
=1326LincolnNebraska, United States 43 US AQI▲126
=1326CalexicoCalifornia, United States 43 US AQI▼37
=1326Santa CruzCalifornia, United States 43 US AQI▲209
=1326UkiahCalifornia, United States 43 US AQI▲210
=1326BadgerAlaska, United States 43 US AQI▲132
=1326QuesnelBritish Columbia, Canada 43 US AQI▲276
=1326KirishimaKagoshima, Japan 43 US AQI▼30
=1326TsushimaNagasaki, Japan 43 US AQI▲75
=1326BarakiChiba, Japan 43 US AQI▲173
=1326NarashinoChiba, Japan 43 US AQI▲175
not rankedWest ChicagoIllinois, United States 43 US AQI
=1358TakarazukaHyōgo, Japan 42 US AQI▲147
=1358Kandalast full day 11 OctFukuoka, Japan 42 US AQI▼156
=1358PerchtoldsdorfLower Austria, Austria 42 US AQI▼558
=1358EisenzickenBurgenland, Austria 42 US AQI▼496
=1358BeerselFlanders, Belgium 42 US AQI▼425
=1358NiceProvence-Alpes-Côte d'Azur, France 42 US AQI▼144
=1358RokycanyPlzeň Region, Czechia 42 US AQI▼76
=1358BilbaoBasque Country, Spain 42 US AQI
=1358Anconalast full day 11 OctThe Marches, Italy 42 US AQI▼106
=1358Tula de AllendeHidalgo, Mexico 42 US AQI▲408
=1358AlbanyGeorgia, United States 42 US AQI▲437
=1358DecaturIllinois, United States 42 US AQI▲122
=1358JerseyvilleIllinois, United States 42 US AQI▼34
=1358GalvestonTexas, United States 42 US AQI▼140
=1358Evergreen ParkIllinois, United States 42 US AQI▲171
=1358WheatonIllinois, United States 42 US AQI▲359
=1358OmahaNebraska, United States 42 US AQI▲37
=1358New HollandPennsylvania, United States 42 US AQI▲241
=1358LincolnCalifornia, United States 42 US AQI▼26
=1358PowayCalifornia, United States 42 US AQI▲39
=1358SmithersBritish Columbia, Canada 42 US AQI▲69
=1379GuanshanTaiwan, Taiwan 42 US AQI▲399
=1379KomatsuIshikawa, Japan 42 US AQI▲163
=1379AyabeKyoto, Japan 42 US AQI▲90
=1379AioiHyōgo, Japan 42 US AQI▲56
=1379MiyakoIwate, Japan 42 US AQI▲132
=1379MitoIbaraki, Japan 42 US AQI▲168
=1379ObihiroHokkaido, Japan 42 US AQI▲206
=1379Ciudad RealCastille-La Mancha, Spain 42 US AQI
=1379EnnsUpper Austria, Austria 42 US AQI▼332
=1379LiberecLiberec Region, Czechia 42 US AQI▲7
=1379Cava Dè TirreniCampania, Italy 42 US AQI▼637
=1379CeljeUrban Municipality of Celje, Slovenia 42 US AQI▼596
=1379PaducahKentucky, United States 42 US AQI▲238
=1379GadsdenAlabama, United States 42 US AQI▲363
=1379Port ArthurTexas, United States 42 US AQI▼123
=1379Blue IslandIllinois, United States 42 US AQI▲189
=1379Park RidgeIllinois, United States 42 US AQI▲191
=1379RockfordIllinois, United States 42 US AQI▲192
=1379Logan CityQueensland, Australia 42 US AQI▲370
=1379TakizawaIwate, Japan 42 US AQI▼9
=1379TomeMiyagi, Japan 42 US AQI▲121
=1400TochigiTochigi, Japan 41 US AQI▲6
=1400NiigataNiigata, Japan 41 US AQI▲31
=1400NakamuraKochi, Japan 41 US AQI▲66
=1400ImaichiTochigi, Japan 41 US AQI▲234
=1400HakuiIshikawa, Japan 41 US AQI▲68
=1400AkiKochi, Japan 41 US AQI▲236
=1400YonezawaYamagata, Japan 41 US AQI▲182
=1400IshiokaIbaraki, Japan 41 US AQI▲183
=1400KushiroHokkaido, Japan 41 US AQI▲148
=1400NewcastleNew South Wales, Australia 41 US AQI▼23
=1400TraunUpper Austria, Austria 41 US AQI▼220
=1400LilleHauts-de-France, France 41 US AQI▼380
=1400RacibórzSilesia, Poland 41 US AQI▲45
=1400Santa Maria A VicoCampania, Italy 41 US AQI▼641
=1400Borgo ValsuganaTrentino-Alto Adige, Italy 41 US AQI▼117
=1400AostaAosta Valley, Italy 41 US AQI▼459
=1400Lake CityFlorida, United States 41 US AQI▲311
=1400New OrleansLouisiana, United States 41 US AQI▲281
=1400WheelersburgOhio, United States 41 US AQI▲313
=1400LawtonOklahoma, United States 41 US AQI▲83
=1400NashvilleTennessee, United States 41 US AQI▲314
=1400MolineIllinois, United States 41 US AQI▲344
=1400East ChicagoIndiana, United States 41 US AQI▲283
=1400Saint PaulMinnesota, United States 41 US AQI▼142
=1400CantonOhio, United States 41 US AQI▲53
=1400CeresCalifornia, United States 41 US AQI▲430
=1400FlorinCalifornia, United States 41 US AQI▼140
=1400Redwood CityCalifornia, United States 41 US AQI▲24

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 7 days to 14 Oct 2026, 06:00 UTC: each city's mean of its daily means, cities measured on 5 or more of the 7 days. Monitor data from national networks via OpenAQ and the publishers listed at smogrank.com/sources. smogrank.com/rankings?w=7d. Ranked on low-cost sensors, with no reference monitor in the city: #1 Kuala Lumpur, #3 Dhaka, #4 Faisalabad, #5 Kasur, #6 Gujranwala, #7 Lahore, #8 Peshawar, #9 Multan and #10 Jakarta. Some readings from Vietnam's government monitors; Uzhydromet (Uzbekistan's Hydrometeorological Service); Aurassure; Department of Environment, Nepal; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver); Umhverfisstofnun (Environment Agency of Iceland), no reuse terms published.

Download top 10 (PNG)

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 06:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some readings: Vietnam's government monitors; Uzhydromet (Uzbekistan's Hydrometeorological Service); Aurassure; Department of Environment, Nepal; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver); Umhverfisstofnun (Environment Agency of Iceland), no reuse terms published (why we use them).