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.

=2139MetzGrand Est, France 22 US AQI0.3 times the WHO guideline▼98
=2139LowellMassachusetts, United States 22 US AQI0.3 times the WHO guideline▲322
=2139CanbyOregon, United States 22 US AQI0.3 times the WHO guideline▲88
=2139Mount VernonWashington, United States 22 US AQI0.3 times the WHO guideline▲151
=2139KelownaBritish Columbia, Canada 22 US AQI0.3 times the WHO guideline▼44
=2139Dallgow-DöberitzBrandenburg, Germany 22 US AQI0.3 times the WHO guideline▲227
not rankedAstrakhanAstrakhan Oblast, Russia 22 US AQI0.3 times the WHO guideline
not rankedBuchaKyiv Oblast, Ukraine 22 US AQI0.3 times the WHO guideline
not rankedMerelbekeFlanders, Belgium 22 US AQI0.3 times the WHO guideline
not rankedWittlichRheinland-Pfalz, Germany 22 US AQI0.3 times the WHO guideline
not rankedWeingartenBaden-Wurttemberg, Germany 22 US AQI0.3 times the WHO guideline
not rankedPetershagenNorth Rhine-Westphalia, Germany 22 US AQI0.3 times the WHO guideline
not rankedEllwangenBaden-Wurttemberg, Germany 22 US AQI0.3 times the WHO guideline
not rankedBüdingenHesse, Germany 22 US AQI0.3 times the WHO guideline
not rankedAttendornNorth Rhine-Westphalia, Germany 22 US AQI0.3 times the WHO guideline
not rankedVilla ConstituciónSanta Fe, Argentina 22 US AQI0.3 times the WHO guideline
not rankedAshburtonCanterbury, New Zealand 22 US AQI0.3 times the WHO guideline
=2157TrebišovKošice Region, Slovakia 21 US AQI0.3 times the WHO guideline▼349
=2157LovechLovech, Bulgaria 21 US AQI0.3 times the WHO guideline▲211
=2157Port MacquarieNew South Wales, Australia 21 US AQI0.3 times the WHO guideline▼1631
=2157NarrabriNew South Wales, Australia 21 US AQI0.3 times the WHO guideline▼474
=2157MorwellVictoria, Australia 21 US AQI0.3 times the WHO guideline▲106
=2157MelbourneVictoria, Australia 21 US AQI0.3 times the WHO guideline▼416
=2157GħarbL-Għarb, Malta 21 US AQI0.3 times the WHO guideline▲54
=2157SpekeEngland, United Kingdom 21 US AQI0.3 times the WHO guideline▼89
=2157InvernessScotland, United Kingdom 21 US AQI0.3 times the WHO guideline▼286
=2157ChepstowWales, United Kingdom 21 US AQI0.3 times the WHO guideline▲512
=2157ZwolleOverijssel, The Netherlands 21 US AQI0.3 times the WHO guideline
=2157HilversumNorth Holland, The Netherlands 21 US AQI0.3 times the WHO guideline▼248
=2157HelmondNorth Brabant, The Netherlands 21 US AQI0.3 times the WHO guideline▼247
=2157WeinheimBaden-Wurttemberg, Germany 21 US AQI0.3 times the WHO guideline▲318
=2157SinsheimBaden-Wurttemberg, Germany 21 US AQI0.3 times the WHO guideline
=2157Neu-AnspachHesse, Germany 21 US AQI0.3 times the WHO guideline▲156
=2157Saint-DizierGrand Est, France 21 US AQI0.3 times the WHO guideline▼279
=2157PerpignanOccitanie, France 21 US AQI0.3 times the WHO guideline▼278
=2157Cava Dè TirreniCampania, Italy 21 US AQI0.3 times the WHO guideline▼386
=2157TarboroNorth Carolina, United States 21 US AQI0.3 times the WHO guideline▼197
=2157TucsonArizona, United States 21 US AQI0.3 times the WHO guideline▼355
=2157HermistonOregon, United States 21 US AQI0.3 times the WHO guideline▲72
=2157Moses LakeWashington, United States 21 US AQI0.3 times the WHO guideline▲370
not rankedZhukovskyMoscow Oblast, Russia 21 US AQI0.3 times the WHO guideline
not rankedNovocheboksarskChuvash Republic, Russia 21 US AQI0.3 times the WHO guideline
not rankedPulong Santa CruzCalabarzon, Philippines 21 US AQI0.3 times the WHO guideline
not rankedWetzikonZurich, Switzerland 21 US AQI0.3 times the WHO guideline
not ranked's-HertogenboschNorth Brabant, The Netherlands 21 US AQI0.3 times the WHO guideline
not rankedRijssenOverijssel, The Netherlands 21 US AQI0.3 times the WHO guideline
not rankedNieuwegeinUtrecht, The Netherlands 21 US AQI0.3 times the WHO guideline
not rankedNaardenNorth Holland, The Netherlands 21 US AQI0.3 times the WHO guideline
not rankedSint-Katelijne-WaverFlanders, Belgium 21 US AQI0.3 times the WHO guideline
not rankedAalterFlanders, Belgium 21 US AQI0.3 times the WHO guideline
not rankedStuhrLower Saxony, Germany 21 US AQI0.3 times the WHO guideline
not rankedStraelenNorth Rhine-Westphalia, Germany 21 US AQI0.3 times the WHO guideline
not rankedNortheimLower Saxony, Germany 21 US AQI0.3 times the WHO guideline
not rankedDieburgHesse, Germany no daily values yet21 US AQI0.3 times the WHO guideline
not rankedBaiersbronnBaden-Wurttemberg, Germany 21 US AQI0.3 times the WHO guideline
not rankedAlbignasegoVeneto, Italy 21 US AQI0.3 times the WHO guideline
not rankedHoumaLouisiana, United States 21 US AQI0.3 times the WHO guideline
not rankedFriendswoodTexas, United States 21 US AQI0.3 times the WHO guideline
not rankedHastingsMinnesota, United States 21 US AQI0.3 times the WHO guideline
not rankedSanta MariaCalifornia, United States 21 US AQI0.3 times the WHO guideline
not rankedWascoCalifornia, United States no daily values yet21 US AQI0.3 times the WHO guideline
=2180GrangeSouth Australia, Australia 21 US AQI0.2 times the WHO guideline▼237
=2180AlburyNew South Wales, Australia 21 US AQI0.2 times the WHO guideline▼438
=2180MansfieldEngland, United Kingdom 21 US AQI0.2 times the WHO guideline▼274
=2180IrlamEngland, United Kingdom 21 US AQI0.2 times the WHO guideline▲269
=2180Cheadle HulmeEngland, United Kingdom 21 US AQI0.2 times the WHO guideline▲355
=2180Wijk bij DuurstedeUtrecht, The Netherlands 21 US AQI0.2 times the WHO guideline
=2180GroesbeekGelderland, The Netherlands 21 US AQI0.2 times the WHO guideline
=2180BestNorth Brabant, The Netherlands 21 US AQI0.2 times the WHO guideline▼308
=2180AarschotFlanders, Belgium 21 US AQI0.2 times the WHO guideline▼104
=2180WaiblingenBaden-Wurttemberg, Germany 21 US AQI0.2 times the WHO guideline
=2180Schwedt (Oder)Brandenburg, Germany 21 US AQI0.2 times the WHO guideline▲296
=2180PoitiersNew Aquitaine, France 21 US AQI0.2 times the WHO guideline▼330
=2180NeversBourgogne-Franche-Comté, France 21 US AQI0.2 times the WHO guideline▼100
=2180AngletNew Aquitaine, France 21 US AQI0.2 times the WHO guideline▲382
=2180MantuaLombardy, Italy 21 US AQI0.2 times the WHO guideline▼253
=2180São SebastiãoSão Paulo, Brazil 21 US AQI0.2 times the WHO guideline▲303
=2180Mission BendTexas, United States 21 US AQI0.2 times the WHO guideline▼476
=2180BrookingsSouth Dakota, United States 21 US AQI0.2 times the WHO guideline▼746
=2180LancasterCalifornia, United States 21 US AQI0.2 times the WHO guideline▼89
=2180FlorenceOregon, United States 21 US AQI0.2 times the WHO guideline▼180
=2180RoseburgOregon, United States 21 US AQI0.2 times the WHO guideline▼155
=2180The DallesOregon, United States 21 US AQI0.2 times the WHO guideline▲19
=2180QuincyWashington, United States 21 US AQI0.2 times the WHO guideline▲434
=2180CranbrookBritish Columbia, Canada 21 US AQI0.2 times the WHO guideline▼283
=2180ReginaSaskatchewan, Canada 21 US AQI0.2 times the WHO guideline▲475
not rankedMalakhovkaMoscow Oblast, Russia 21 US AQI0.2 times the WHO guideline
not rankedRomnySumy, Ukraine 21 US AQI0.2 times the WHO guideline
not rankedPooleEngland, United Kingdom 21 US AQI0.2 times the WHO guideline
not rankedCamberleyEngland, United Kingdom 21 US AQI0.2 times the WHO guideline
not rankedWierdenOverijssel, The Netherlands 21 US AQI0.2 times the WHO guideline
not rankedTurnhoutFlanders, Belgium 21 US AQI0.2 times the WHO guideline
not rankedZerbstSaxony-Anhalt, Germany 21 US AQI0.2 times the WHO guideline
not rankedTuttlingenBaden-Wurttemberg, Germany 21 US AQI0.2 times the WHO guideline
not rankedVeronaVeneto, Italy 21 US AQI0.2 times the WHO guideline
not rankedMaitlandFlorida, United States 21 US AQI0.2 times the WHO guideline
not rankedNewbergOregon, United States 21 US AQI0.2 times the WHO guideline
=2205PernikPernik, Bulgaria 20 US AQI0.2 times the WHO guideline▼301
=2205SheffieldEngland, United Kingdom 20 US AQI0.2 times the WHO guideline▼462
=2205PeterboroughEngland, United Kingdom 20 US AQI0.2 times the WHO guideline▼80

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).