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.

=2072GennepLimburg, The Netherlands 23 US AQI0.3 times the WHO guideline▼383
=2072GenemuidenOverijssel, The Netherlands 23 US AQI0.3 times the WHO guideline▼540
=2072VielsalmWallonia, Belgium 23 US AQI0.3 times the WHO guideline▲276
=2072VeurneFlanders, Belgium 23 US AQI0.3 times the WHO guideline▼228
=2072Sint-NiklaasFlanders, Belgium 23 US AQI0.3 times the WHO guideline
=2072DinslakenNorth Rhine-Westphalia, Germany 23 US AQI0.3 times the WHO guideline
=2072GreystonesLeinster, Ireland 23 US AQI0.3 times the WHO guideline▲468
=2072BrayLeinster, Ireland 23 US AQI0.3 times the WHO guideline▲246
=2072Montceau-les-MinesBourgogne-Franche-Comté, France 23 US AQI0.3 times the WHO guideline▼123
=2072LimogesNew Aquitaine, France 23 US AQI0.3 times the WHO guideline▼192
=2072NikšićOpština Nikšić, Montenegro 23 US AQI0.3 times the WHO guideline▲251
=2072RaymoreMissouri, United States 23 US AQI0.3 times the WHO guideline▼24
=2072Des MoinesIowa, United States 23 US AQI0.3 times the WHO guideline▼523
=2072Casa GrandeArizona, United States 23 US AQI0.3 times the WHO guideline▼182
=2072AlpineCalifornia, United States 23 US AQI0.3 times the WHO guideline▲212
=2072Rancho MurietaCalifornia, United States 23 US AQI0.3 times the WHO guideline▼798
=2072San RafaelCalifornia, United States 23 US AQI0.3 times the WHO guideline▼1034
=2072Oregon CityOregon, United States 23 US AQI0.3 times the WHO guideline▼134
=2072BurienWashington, United States 23 US AQI0.3 times the WHO guideline▼361
=2072EllensburgWashington, United States 23 US AQI0.3 times the WHO guideline▲346
=2072CoquitlamBritish Columbia, Canada 23 US AQI0.3 times the WHO guideline▲132
=2072Sherwood ParkAlberta, Canada 23 US AQI0.3 times the WHO guideline▲313
=2072St. AlbertAlberta, Canada 23 US AQI0.3 times the WHO guideline▲73
=2072Jordan SpringsNew South Wales, Australia 23 US AQI0.3 times the WHO guideline▼170
not rankedRazgradRazgrad, Bulgaria 23 US AQI0.3 times the WHO guideline
not rankedKraljevoCentral Serbia, Serbia 23 US AQI0.3 times the WHO guideline
not rankedChelmsfordEngland, United Kingdom 23 US AQI0.3 times the WHO guideline
not rankedAltonEngland, United Kingdom 23 US AQI0.3 times the WHO guideline
not rankedSteffisburgBern, Switzerland 23 US AQI0.3 times the WHO guideline
not rankedCulemborgGelderland, The Netherlands 23 US AQI0.3 times the WHO guideline
not rankedWörth am RheinRheinland-Pfalz, Germany 23 US AQI0.3 times the WHO guideline
not rankedTrossingenBaden-Wurttemberg, Germany 23 US AQI0.3 times the WHO guideline
not rankedOverathNorth Rhine-Westphalia, Germany 23 US AQI0.3 times the WHO guideline
not rankedNiederkrüchtenNorth Rhine-Westphalia, Germany 23 US AQI0.3 times the WHO guideline
not rankedFrankenthalRheinland-Pfalz, Germany 23 US AQI0.3 times the WHO guideline
not rankedFalkenseeBrandenburg, Germany no daily values yet23 US AQI0.3 times the WHO guideline
not rankedNew Smyrna BeachFlorida, United States 23 US AQI0.3 times the WHO guideline
not rankedBeaumontCalifornia, United States 23 US AQI0.3 times the WHO guideline
not rankedOshawaOntario, Canada 23 US AQI0.3 times the WHO guideline
=2105IrákleionCrete, Greece 22 US AQI0.3 times the WHO guideline▼667
=2105RēzekneRēzekne, Latvia 22 US AQI0.3 times the WHO guideline▼553
=2105JyväskyläCentral Finland, Finland 22 US AQI0.3 times the WHO guideline▲415
=2105YorkEngland, United Kingdom 22 US AQI0.3 times the WHO guideline▼73
=2105Stoke-on-TrentEngland, United Kingdom 22 US AQI0.3 times the WHO guideline▼130
=2105ShrewsburyEngland, United Kingdom 22 US AQI0.3 times the WHO guideline▲526
=2105MiddlewichEngland, United Kingdom 22 US AQI0.3 times the WHO guideline▲73
=2105LoughboroughEngland, United Kingdom 22 US AQI0.3 times the WHO guideline▼36
=2105CannockEngland, United Kingdom 22 US AQI0.3 times the WHO guideline▲75
=2105VeghelNorth Brabant, The Netherlands 22 US AQI0.3 times the WHO guideline▼698
=2105MolFlanders, Belgium 22 US AQI0.3 times the WHO guideline▼193
=2105TroisdorfNorth Rhine-Westphalia, Germany 22 US AQI0.3 times the WHO guideline
=2105StockachBaden-Wurttemberg, Germany 22 US AQI0.3 times the WHO guideline▲515
=2105NeuenhagenBrandenburg, Germany 22 US AQI0.3 times the WHO guideline
=2105ElmshornSchleswig-Holstein, Germany 22 US AQI0.3 times the WHO guideline
=2105BendorfRheinland-Pfalz, Germany 22 US AQI0.3 times the WHO guideline▲373
=2105Romans-sur-IsèreAuvergne-Rhône-Alpes, France 22 US AQI0.3 times the WHO guideline▼315
=2105AngersPays de la Loire, France 22 US AQI0.3 times the WHO guideline▲217
=2105CasertaCampania, Italy 22 US AQI0.3 times the WHO guideline▼711
=2105TelfordEngland, United Kingdom 22 US AQI0.3 times the WHO guideline▲459
=2105University CityMissouri, United States 22 US AQI0.3 times the WHO guideline▼538
=2105ClaytonNorth Carolina, United States 22 US AQI0.3 times the WHO guideline▲223
=2105GreenfieldMassachusetts, United States 22 US AQI0.3 times the WHO guideline▲250
=2105YumaArizona, United States 22 US AQI0.3 times the WHO guideline▼400
=2105CalexicoCalifornia, United States 22 US AQI0.3 times the WHO guideline▼16
=2105SebastopolCalifornia, United States 22 US AQI0.3 times the WHO guideline▼878
=2105Colorado SpringsColorado, United States 22 US AQI0.3 times the WHO guideline▲471
=2105GreeleyColorado, United States 22 US AQI0.3 times the WHO guideline▼241
=2105LewistownMontana, United States 22 US AQI0.3 times the WHO guideline▼366
=2105YakimaWashington, United States 22 US AQI0.3 times the WHO guideline▲259
=2105EstevanSaskatchewan, Canada 22 US AQI0.3 times the WHO guideline
=2105GibsonsBritish Columbia, Canada 22 US AQI0.3 times the WHO guideline▲64
=2105Strawberry HillBritish Columbia, Canada 22 US AQI0.3 times the WHO guideline▲65
=2105Val-de-ReuilNormandy, France 22 US AQI0.3 times the WHO guideline▲66
not rankedParvomayPlovdiv, Bulgaria 22 US AQI0.3 times the WHO guideline
not rankedTielGelderland, The Netherlands 22 US AQI0.3 times the WHO guideline
not rankedHerentalsFlanders, Belgium 22 US AQI0.3 times the WHO guideline
not rankedBeerseFlanders, Belgium 22 US AQI0.3 times the WHO guideline
not rankedAalstFlanders, Belgium 22 US AQI0.3 times the WHO guideline
not rankedWerneNorth Rhine-Westphalia, Germany 22 US AQI0.3 times the WHO guideline
not rankedVerdenLower Saxony, Germany 22 US AQI0.3 times the WHO guideline
not rankedTönisvorstNorth Rhine-Westphalia, Germany 22 US AQI0.3 times the WHO guideline
not rankedHockenheimBaden-Wurttemberg, Germany 22 US AQI0.3 times the WHO guideline
not rankedBrake (Unterweser)Lower Saxony, Germany 22 US AQI0.3 times the WHO guideline
not rankedBad OeynhausenNorth Rhine-Westphalia, Germany 22 US AQI0.3 times the WHO guideline
not rankedBad DürkheimRheinland-Pfalz, Germany 22 US AQI0.3 times the WHO guideline
not rankedVicenzaVeneto, Italy 22 US AQI0.3 times the WHO guideline
not rankedCuencaAzuay, Ecuador 22 US AQI0.3 times the WHO guideline
not rankedPitt MeadowsBritish Columbia, Canada 22 US AQI0.3 times the WHO guideline
=2139New LambtonNew South Wales, Australia 22 US AQI0.3 times the WHO guideline▼1048
=2139SurseeLucerne, Switzerland 22 US AQI0.3 times the WHO guideline▲128
=2139GothenburgVästra Götaland, Sweden 22 US AQI0.3 times the WHO guideline▲172
=2139WormerNorth Holland, The Netherlands 22 US AQI0.3 times the WHO guideline▼558
=2139Sint-OedenrodeNorth Brabant, The Netherlands 22 US AQI0.3 times the WHO guideline▼481
=2139NijkerkGelderland, The Netherlands 22 US AQI0.3 times the WHO guideline
=2139Louvain-la-NeuveWallonia, Belgium 22 US AQI0.3 times the WHO guideline
=2139RösrathNorth Rhine-Westphalia, Germany 22 US AQI0.3 times the WHO guideline▲15
=2139Hohen NeuendorfBrandenburg, Germany 22 US AQI0.3 times the WHO guideline
=2139GermeringBavaria, Germany 22 US AQI0.3 times the WHO guideline
=2139SorbiersAuvergne-Rhône-Alpes, France 22 US AQI0.3 times the WHO guideline▼412
=2139SarcellesÎle-de-France, France 22 US AQI0.3 times the WHO guideline▼653

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.

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 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).