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.

=2561LawrenceKansas, United States 11 US AQI0.1 times the WHO guideline▲44
=2561LondonderryNew Hampshire, United States 11 US AQI0.1 times the WHO guideline▼99
not rankedMonroviaMontserrado County, Liberia 11 US AQI0.1 times the WHO guideline
not rankedCoalvilleEngland, United Kingdom 11 US AQI0.1 times the WHO guideline
not rankedNijlenFlanders, Belgium 11 US AQI0.1 times the WHO guideline
not rankedWeilheimBavaria, Germany 11 US AQI0.1 times the WHO guideline
not rankedPirnaSaxony, Germany 11 US AQI0.1 times the WHO guideline
not rankedKönigslutter am ElmLower Saxony, Germany 11 US AQI0.1 times the WHO guideline
not rankedBurgdorfLower Saxony, Germany 11 US AQI0.1 times the WHO guideline
not rankedRobertsonWestern Cape, South Africa 11 US AQI0.1 times the WHO guideline
not rankedAddisonTexas, United States 11 US AQI0.1 times the WHO guideline
not rankedTraverse CityMichigan, United States 11 US AQI0.1 times the WHO guideline
not rankedDanvilleCalifornia, United States 11 US AQI0.1 times the WHO guideline
not rankedLafayetteCalifornia, United States 11 US AQI0.1 times the WHO guideline
not rankedKempston HardwickEngland, United Kingdom 11 US AQI0.1 times the WHO guideline
=2569OuluNorth Ostrobothnia, Finland 10 US AQI0.1 times the WHO guideline▼423
=2569KyustendilKyustendil, Bulgaria 10 US AQI0.1 times the WHO guideline▼122
=2569MilduraVictoria, Australia 10 US AQI0.1 times the WHO guideline▲26
=2569JumetWallonia, Belgium 10 US AQI0.1 times the WHO guideline▲31
=2569SchrambergBaden-Wurttemberg, Germany 10 US AQI0.1 times the WHO guideline
=2569HechingenBaden-Wurttemberg, Germany 10 US AQI0.1 times the WHO guideline
=2569BalingenBaden-Wurttemberg, Germany 10 US AQI0.1 times the WHO guideline
=2569MeadWashington, United States 10 US AQI0.1 times the WHO guideline▲110
=2569Labrador CityNewfoundland and Labrador, Canada 10 US AQI0.1 times the WHO guideline▲111
=2569OttawaOntario, Canada 10 US AQI0.1 times the WHO guideline▼448
not rankedKhot'kovoMoscow Oblast, Russia 10 US AQI0.1 times the WHO guideline
not rankedTrångsundStockholm, Sweden 10 US AQI0.1 times the WHO guideline
not rankedÅkersbergaStockholm, Sweden 10 US AQI0.1 times the WHO guideline
not rankedRiminiEmilia-Romagna, Italy 10 US AQI0.1 times the WHO guideline
not rankedPentictonBritish Columbia, Canada 10 US AQI0.1 times the WHO guideline
=2579KüssnachtSchwyz, Switzerland 9 US AQI0.1 times the WHO guideline▼188
=2579MaranaArizona, United States 9 US AQI0.1 times the WHO guideline▼718
=2579MesquiteNevada, United States 9 US AQI0.1 times the WHO guideline▼115
=2579HurricaneUtah, United States 9 US AQI0.1 times the WHO guideline▼168
=2579Brigham CityUtah, United States 9 US AQI0.1 times the WHO guideline
=2579Stansbury parkUtah, United States 9 US AQI0.1 times the WHO guideline▲57
=2579VernalUtah, United States 9 US AQI0.1 times the WHO guideline▲81
=2579RanchettesWyoming, United States 9 US AQI0.1 times the WHO guideline▼86
=2579Hawaiian Paradise ParkHawaii, United States 9 US AQI0.1 times the WHO guideline▼577
=2579QuébecQuebec, Canada 9 US AQI0.1 times the WHO guideline▼926
=2579Münstertal/SchwarzwaldBaden-Wurttemberg, Germany 9 US AQI0.1 times the WHO guideline▲10
not rankedPaphosPafos, Cyprus 9 US AQI0.1 times the WHO guideline
not rankedMarkovaIrkutsk Oblast, Russia 9 US AQI0.1 times the WHO guideline
not rankedAlcázar de San JuanCastille-La Mancha, Spain 9 US AQI0.1 times the WHO guideline
not rankedWorksopEngland, United Kingdom 9 US AQI0.1 times the WHO guideline
not rankedHailshamEngland, United Kingdom 9 US AQI0.1 times the WHO guideline
not rankedMärstaStockholm, Sweden 9 US AQI0.1 times the WHO guideline
not rankedFalunDalarna, Sweden 9 US AQI0.1 times the WHO guideline
not rankedMassyÎle-de-France, France 9 US AQI0.1 times the WHO guideline
not rankedNewtonMassachusetts, United States 9 US AQI0.1 times the WHO guideline
not rankedBowthorpeEngland, United Kingdom 9 US AQI0.1 times the WHO guideline
=2590StawellVictoria, Australia 9 US AQI0.1 times the WHO guideline▲26
=2590CanberraAustralian Capital Territory, Australia 9 US AQI0.1 times the WHO guideline▼1655
=2590HamoisWallonia, Belgium 9 US AQI0.1 times the WHO guideline▲85
=2590BangorMaine, United States 9 US AQI0.1 times the WHO guideline▼154
=2590MarquetteMichigan, United States 9 US AQI0.1 times the WHO guideline▼428
=2590Detroit LakesMinnesota, United States 9 US AQI0.1 times the WHO guideline▼838
=2590SuperiorWisconsin, United States 9 US AQI0.1 times the WHO guideline▼150
=2590AlamosaColorado, United States 9 US AQI0.1 times the WHO guideline▼16
=2590North OgdenUtah, United States 9 US AQI0.1 times the WHO guideline▲21
=2590West Valley CityUtah, United States 9 US AQI0.1 times the WHO guideline▼123
not rankedKangasalaPirkanmaa, Finland 9 US AQI0.1 times the WHO guideline
not rankedPazardzhikPazardzhik, Bulgaria 9 US AQI0.1 times the WHO guideline
not rankedDinningtonEngland, United Kingdom 9 US AQI0.1 times the WHO guideline
not rankedDartonEngland, United Kingdom 9 US AQI0.1 times the WHO guideline
not rankedDarlingtonEngland, United Kingdom 9 US AQI0.1 times the WHO guideline
not rankedVästeråsVästmanland, Sweden 9 US AQI0.1 times the WHO guideline
not rankedNyköpingSödermanland, Sweden 9 US AQI0.1 times the WHO guideline
not rankedLandsberg am LechBavaria, Germany 9 US AQI0.1 times the WHO guideline
not rankedBentonvilleArkansas, United States 9 US AQI0.1 times the WHO guideline
not rankedLakevilleMinnesota, United States 9 US AQI0.1 times the WHO guideline
not rankedOtsegoMinnesota, United States 9 US AQI0.1 times the WHO guideline
not rankedEverettWashington, United States 9 US AQI0.1 times the WHO guideline
=2600BurgasBurgas, Bulgaria 8 US AQI0.1 times the WHO guideline▼213
=2600BendigoVictoria, Australia 8 US AQI0.1 times the WHO guideline▲46
=2600NagoldBaden-Wurttemberg, Germany 8 US AQI0.1 times the WHO guideline
=2600GlashüttenHesse, Germany 8 US AQI0.1 times the WHO guideline▼416
=2600AugustaMaine, United States 8 US AQI0.1 times the WHO guideline▼319
=2600BrainerdMinnesota, United States 8 US AQI0.1 times the WHO guideline▼639
=2600South ValleyNew Mexico, United States 8 US AQI0.1 times the WHO guideline▼219
=2600MissoulaMontana, United States 8 US AQI0.1 times the WHO guideline
=2600MagnaUtah, United States 8 US AQI0.1 times the WHO guideline▼52
=2600MillcreekUtah, United States 8 US AQI0.1 times the WHO guideline▼544
=2600BothellWashington, United States 8 US AQI0.1 times the WHO guideline
=2600Trois-RivièresQuebec, Canada 8 US AQI0.1 times the WHO guideline▼595
=2600Ponta DelgadaAzores, Portugal 8 US AQI0.1 times the WHO guideline
not rankedNaro-FominskMoscow Oblast, Russia 8 US AQI0.1 times the WHO guideline
not rankedSpaldingEngland, United Kingdom 8 US AQI0.1 times the WHO guideline
not rankedNantwichEngland, United Kingdom 8 US AQI0.1 times the WHO guideline
not rankedLeighton BuzzardEngland, United Kingdom 8 US AQI0.1 times the WHO guideline
not rankedDundeeScotland, United Kingdom 8 US AQI0.1 times the WHO guideline
not rankedBaesweilerNorth Rhine-Westphalia, Germany 8 US AQI0.1 times the WHO guideline
not rankedSpoletoUmbria, Italy 8 US AQI0.1 times the WHO guideline
not rankedHoldenMassachusetts, United States 8 US AQI0.1 times the WHO guideline
=2613KarlstadVärmland, Sweden 8 US AQI0.1 times the WHO guideline▲27
=2613ChampionWallonia, Belgium 8 US AQI0.1 times the WHO guideline▲53
=2613HartfordVermont, United States 8 US AQI0.1 times the WHO guideline▼358
=2613Steamboat SpringsColorado, United States 8 US AQI0.1 times the WHO guideline▼3
=2613GranbyQuebec, Canada 8 US AQI0.1 times the WHO guideline▼715
=2613NepeanOntario, Canada 8 US AQI0.1 times the WHO guideline▼932

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).