All 2,653 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). Their cities are missing from this board, not clean.

=2490PollaCampania, Italy 13 US AQI0.2 times the WHO guideline▼834
=2490BolognaEmilia-Romagna, Italy 13 US AQI0.2 times the WHO guideline▼675
=2490KralendijkBonaire, Bonaire, Saint Eustatius and Saba 13 US AQI0.2 times the WHO guideline▼426
=2490Walla WallaWashington, United States 13 US AQI0.2 times the WHO guideline▼337
=2490Greater SudburyOntario, Canada 13 US AQI0.2 times the WHO guideline▼389
=2490Prince AlbertSaskatchewan, Canada 13 US AQI0.2 times the WHO guideline▼88
=2490SaguenayQuebec, Canada 13 US AQI0.2 times the WHO guideline▼233
=2490ShawiniganQuebec, Canada 13 US AQI0.2 times the WHO guideline▼1147
=2490Summerlin SouthNevada, United States 13 US AQI0.2 times the WHO guideline▼363
=2510HämeenkyläUusimaa, Finland 13 US AQI0.2 times the WHO guideline▼58
=2510MiddlesbroughEngland, United Kingdom 13 US AQI0.2 times the WHO guideline▼868
=2510BilzenFlanders, Belgium 13 US AQI0.2 times the WHO guideline
=2510SarstedtLower Saxony, Germany 13 US AQI0.2 times the WHO guideline
=2510CorteCorsica, France 13 US AQI0.2 times the WHO guideline
=2510ChartresCentre-Val de Loire, France 13 US AQI0.2 times the WHO guideline▼699
=2510BloisCentre-Val de Loire, France 13 US AQI0.2 times the WHO guideline▼532
=2510AurillacAuvergne-Rhône-Alpes, France 13 US AQI0.2 times the WHO guideline▼369
=2510RijekaPrimorje-Gorski Kotar, Croatia 13 US AQI0.2 times the WHO guideline▼41
=2510Biograd na MoruZadar, Croatia 13 US AQI0.2 times the WHO guideline▼286
=2510GarðabærCapital Region, Iceland 13 US AQI0.2 times the WHO guideline▼693
=2510PortlandMaine, United States 13 US AQI0.2 times the WHO guideline▼495
=2510Saint MichaelMinnesota, United States 13 US AQI0.2 times the WHO guideline▼1975
=2510CeresCalifornia, United States 13 US AQI0.2 times the WHO guideline▼256
=2510CorvallisOregon, United States 13 US AQI0.2 times the WHO guideline▼184
=2510PierreSouth Dakota, United States 13 US AQI0.2 times the WHO guideline▼410
=2510CodyWyoming, United States 13 US AQI0.2 times the WHO guideline
=2510LethbridgeAlberta, Canada 13 US AQI0.2 times the WHO guideline▼32
=2510Swift CurrentSaskatchewan, Canada 13 US AQI0.2 times the WHO guideline▼14
=2529DunedinOtago, New Zealand 12 US AQI0.1 times the WHO guideline▼612
=2529RottweilBaden-Wurttemberg, Germany 12 US AQI0.1 times the WHO guideline▼190
=2529DürenNorth Rhine-Westphalia, Germany 12 US AQI0.1 times the WHO guideline
=2529ChâteaurouxCentre-Val de Loire, France 12 US AQI0.1 times the WHO guideline▼577
=2529BourgesCentre-Val de Loire, France 12 US AQI0.1 times the WHO guideline▼439
=2529FredrikstadØstfold, Norway 12 US AQI0.1 times the WHO guideline
=2529Green ValleyArizona, United States 12 US AQI0.1 times the WHO guideline▼460
=2529Carson CityNevada, United States 12 US AQI0.1 times the WHO guideline▼941
=2529MillcreekUtah, United States 12 US AQI0.1 times the WHO guideline▼540
=2529Salt Lake CityUtah, United States 12 US AQI0.1 times the WHO guideline▼246
=2529MontréalQuebec, Canada 12 US AQI0.1 times the WHO guideline▼799
=2529Grand CentreAlberta, Canada 12 US AQI0.1 times the WHO guideline▼123
=2529KallahtiUusimaa, Finland 12 US AQI0.1 times the WHO guideline▼66
=2542TartuTartu, Estonia 12 US AQI0.1 times the WHO guideline▼600
=2542TamperePirkanmaa, Finland 12 US AQI0.1 times the WHO guideline▼328
=2542RiversdaleWestern Cape, South Africa 12 US AQI0.1 times the WHO guideline▼1059
=2542TonbridgeEngland, United Kingdom 12 US AQI0.1 times the WHO guideline
=2542RiemstFlanders, Belgium 12 US AQI0.1 times the WHO guideline▼324
=2542JülichNorth Rhine-Westphalia, Germany 12 US AQI0.1 times the WHO guideline▼408
=2542LondonderryNew Hampshire, United States 12 US AQI0.1 times the WHO guideline▼240
=2542RutlandVermont, United States 12 US AQI0.1 times the WHO guideline▼788
=2542MiddletonWisconsin, United States 12 US AQI0.1 times the WHO guideline
=2542OjaiCalifornia, United States 12 US AQI0.1 times the WHO guideline▼445
=2542Idaho FallsIdaho, United States 12 US AQI0.1 times the WHO guideline
=2542AnacortesWashington, United States 12 US AQI0.1 times the WHO guideline▼82
=2542Fort McMurrayAlberta, Canada 12 US AQI0.1 times the WHO guideline▼332
=2542FrederictonNew Brunswick, Canada 12 US AQI0.1 times the WHO guideline▼213
=2542L'Ancienne-LoretteQuebec, Canada 12 US AQI0.1 times the WHO guideline▼1414
=2542KostelMunicipality of Kostel, Slovenia 12 US AQI0.1 times the WHO guideline▼160
=2558OuluNorth Ostrobothnia, Finland 11 US AQI0.1 times the WHO guideline▼594
=2558WeertLimburg, The Netherlands 11 US AQI0.1 times the WHO guideline
=2558AlfeldLower Saxony, Germany 11 US AQI0.1 times the WHO guideline
=2558FontainebleauÎle-de-France, France 11 US AQI0.1 times the WHO guideline▼523
=2558Cañon CityColorado, United States 11 US AQI0.1 times the WHO guideline▼82
=2558PuebloColorado, United States 11 US AQI0.1 times the WHO guideline▼322
=2558HerrimanUtah, United States 11 US AQI0.1 times the WHO guideline▼251
=2558Union GapWashington, United States 11 US AQI0.1 times the WHO guideline▼81
=2566SantanaMadeira, Portugal 11 US AQI0.1 times the WHO guideline▼539
=2566RoermondLimburg, The Netherlands 11 US AQI0.1 times the WHO guideline▼2537
=2566LahrBaden-Wurttemberg, Germany 11 US AQI0.1 times the WHO guideline
=2566Herrsching am AmmerseeBavaria, Germany 11 US AQI0.1 times the WHO guideline▼155
=2566GroßalmerodeHesse, Germany 11 US AQI0.1 times the WHO guideline▼431
=2566DrammenBuskerud, Norway 11 US AQI0.1 times the WHO guideline▼587
=2566AvellinoCampania, Italy 11 US AQI0.1 times the WHO guideline▼269
=2566LawrenceKansas, United States 11 US AQI0.1 times the WHO guideline▼195
=2566Saint CloudMinnesota, United States 11 US AQI0.1 times the WHO guideline▼1479
=2566Stansbury parkUtah, United States 11 US AQI0.1 times the WHO guideline▼107
=2566West Valley CityUtah, United States 11 US AQI0.1 times the WHO guideline▼239
=2566BrossardQuebec, Canada 11 US AQI0.1 times the WHO guideline
=2566MiramichiNew Brunswick, Canada 11 US AQI0.1 times the WHO guideline▼279
=2566OttawaOntario, Canada 11 US AQI0.1 times the WHO guideline▼691
=2566Rivière-des-Prairies–Pointe-aux-TremblesQuebec, Canada 11 US AQI0.1 times the WHO guideline▼736
=2581KyustendilKyustendil, Bulgaria 10 US AQI0.1 times the WHO guideline▼322
=2581MilduraVictoria, Australia 10 US AQI0.1 times the WHO guideline▼174
=2581KüssnachtSchwyz, Switzerland 10 US AQI0.1 times the WHO guideline▼396
=2581RixensartWallonia, Belgium 10 US AQI0.1 times the WHO guideline▼395
=2581SchrambergBaden-Wurttemberg, Germany 10 US AQI0.1 times the WHO guideline
=2581HechingenBaden-Wurttemberg, Germany 10 US AQI0.1 times the WHO guideline
=2581BalingenBaden-Wurttemberg, Germany 10 US AQI0.1 times the WHO guideline
=2581Hawaiian Paradise ParkHawaii, United States 10 US AQI0.1 times the WHO guideline▼725
=2581QuébecQuebec, Canada 10 US AQI0.1 times the WHO guideline▼1183
=2590StawellVictoria, Australia 9 US AQI0.1 times the WHO guideline▼164
=2590BangorMaine, United States 9 US AQI0.1 times the WHO guideline▼391
=2590MaranaArizona, United States 9 US AQI0.1 times the WHO guideline▼865
=2590MesquiteNevada, United States 9 US AQI0.1 times the WHO guideline▼266
=2590HurricaneUtah, United States 9 US AQI0.1 times the WHO guideline▼353
=2590BothellWashington, United States 9 US AQI0.1 times the WHO guideline
=2590MeadWashington, United States 9 US AQI0.1 times the WHO guideline▼92
=2590RanchettesWyoming, United States 9 US AQI0.1 times the WHO guideline▼305
=2590Münstertal/SchwarzwaldBaden-Wurttemberg, Germany 9 US AQI0.1 times the WHO guideline▼187
=2599ApatityMurmansk, Russia 9 US AQI0.1 times the WHO guideline▼519
=2599CharleroiWallonia, Belgium 9 US AQI0.1 times the WHO guideline▼156

What stands behind each figure: Checked at 2+ sites One reference monitor Low-cost sensors 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, 03:00 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.

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 03:07 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).