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.

=2716GothenburgVästra Götaland, Sweden 17 US AQI▼234
=2716TrochtelfingenBaden-Wurttemberg, Germany 17 US AQI▼12
=2716BrayLeinster, Ireland 17 US AQI▲57
=2716Salon-de-ProvenceProvence-Alpes-Côte d'Azur, France 17 US AQI▼101
=2716RevinGrand Est, France 17 US AQI▼10
=2716les EscaldesEscaldes-Engordany, Andorra 17 US AQI▲24
=2716North ChicopeeMassachusetts, United States 17 US AQI▲125
=2716LewistonMaine, United States 17 US AQI▲96
=2716Syracuselast full day 11 OctNew York, United States 17 US AQI▲78
=2716Boulder CityNevada, United States 17 US AQI▲80
=2716MesquiteNevada, United States 17 US AQI▲48
=2716BathurstNew Brunswick, Canada 17 US AQI▲105
not rankedNarragansettRhode Island, United States 17 US AQI
not rankedBeloeilQuebec, Canada 17 US AQI
=2735HonitonEngland, United Kingdom 17 US AQI▲69
=2735DunholmeEngland, United Kingdom 17 US AQI▼36
=2735CreweEngland, United Kingdom 17 US AQI▲71
=2735GroßalmerodeHesse, Germany 17 US AQI▼121
=2735TarbesOccitanie, France 17 US AQI▼74
=2735MontluçonAuvergne-Rhône-Alpes, France 17 US AQI▼119
=2735LunelOccitanie, France 17 US AQI▲74
=2735LondonderryNew Hampshire, United States 17 US AQI▲78
=2735PortsmouthNew Hampshire, United States 17 US AQI▲95
=2735Mount Ivylast full day 11 OctNew York, United States 17 US AQI▲126
=2735DeltaColorado, United States 17 US AQI▼85
=2735GreenOregon, United States 17 US AQI▲64
=2735Hawaiian Paradise ParkHawaii, United States 17 US AQI▲99
=2735PalmerAlaska, United States 17 US AQI▲108
=2735GranbyQuebec, Canada 17 US AQI▲33
=2735Sault Ste. MarieOntario, Canada 17 US AQI▲84
=2735Sydneylast full day 11 OctNova Scotia, Canada 17 US AQI▲85
=2735EdertalHesse, Germany 17 US AQI▲13
not rankedCamberleyEngland, United Kingdom 17 US AQI
=2753CorroiosSetúbal, Portugal 16 US AQI▼21
=2753Grao de MurviedroValencia, Spain 16 US AQI
=2753OxfordEngland, United Kingdom 16 US AQI▲85
=2753Market DeepingEngland, United Kingdom 16 US AQI▼3
=2753HalesworthEngland, United Kingdom 16 US AQI▲52
=2753MonsWallonia, Belgium 16 US AQI▼165
=2753OlpeNorth Rhine-Westphalia, Germany 16 US AQI
=2753LillehammerInnlandet, Norway 16 US AQI▲36
=2753ReykjavíkCapital Region, Iceland 16 US AQI▲106
=2753South LaurelMaryland, United States 16 US AQI▲5
=2753BangorMaine, United States 16 US AQI▲58
=2753BenningtonVermont, United States 16 US AQI▲119
=2753Steamboat SpringsColorado, United States 16 US AQI▼36
=2753RedmondOregon, United States 16 US AQI▲61
=2753Heber CityUtah, United States 16 US AQI▼34
=2753BellevueWashington, United States 16 US AQI▲12
=2753Campbell RiverBritish Columbia, Canada 16 US AQI▲63
=2753Parry SoundOntario, Canada 16 US AQI▲110
not rankedMonroviaMontserrado County, Liberia 16 US AQI
=2771VantaaUusimaa, Finland 16 US AQI▲78
=2771ShrewsburyEngland, United Kingdom 16 US AQI▲82
=2771BurwellEngland, United Kingdom 16 US AQI▲52
=2771Herrsching am AmmerseeBavaria, Germany 16 US AQI▼89
=2771KillarneyMunster, Ireland 16 US AQI▲100
=2771OsloOslo, Norway 16 US AQI▲108
=2771TelfordEngland, United Kingdom 16 US AQI▲39
=2771Big Bear CityCalifornia, United States 16 US AQI▲24
=2771Cañon CityColorado, United States 16 US AQI▲8
=2771DallasOregon, United States 16 US AQI▲10
=2771RivertonWyoming, United States 16 US AQI▲12
=2771DrummondvilleQuebec, Canada 16 US AQI▲46
=2771SherbrookeQuebec, Canada 16 US AQI▲30
not rankedMemmingenBavaria, Germany 16 US AQI
not rankedBad LippspringeNorth Rhine-Westphalia, Germany 16 US AQI
=2784OuluNorth Ostrobothnia, Finland 15 US AQI▲18
=2784LohjaUusimaa, Finland 15 US AQI▲66
=2784LaaksolahtiUusimaa, Finland 15 US AQI▲67
=2784HelsinkiUusimaa, Finland 15 US AQI▲52
=2784WrexhamWales, United Kingdom 15 US AQI▲68
=2784Newton AbbotEngland, United Kingdom 15 US AQI▲81
=2784AndoverEngland, United Kingdom 15 US AQI▲71
=2784KüssnachtSchwyz, Switzerland 15 US AQI▼31
=2784Clermont-FerrandAuvergne-Rhône-Alpes, France 15 US AQI▼77
=2784AurillacAuvergne-Rhône-Alpes, France 15 US AQI▼76
=2784WareMassachusetts, United States 15 US AQI▲96
=2784HavreMontana, United States 15 US AQI▲13
=2784NewportOregon, United States 15 US AQI▲78
=2784LaramieWyoming, United States 15 US AQI▲47
=2784RawlinsWyoming, United States 15 US AQI▲48
=2784KahuluiHawaii, United States 15 US AQI▲49
=2784Port WallaceNova Scotia, Canada 15 US AQI▲84
=2784SaguenayQuebec, Canada 15 US AQI▲85
=2784Münstertal/SchwarzwaldBaden-Wurttemberg, Germany 15 US AQI
=2784West GreenwichRhode Island, United States 15 US AQI▲80
=2784High PeakEngland, United Kingdom 15 US AQI▲51
not rankedEau ClaireWisconsin, United States 15 US AQI
not rankedValenciaCalifornia, United States 15 US AQI
=2805BuñolValencia, Spain 14 US AQI
=2805AlicanteValencia, Spain 14 US AQI
=2805AberdeenScotland, United Kingdom 14 US AQI▲34
=2805GlashüttenHesse, Germany 14 US AQI▲3
=2805CorteCorsica, France 14 US AQI▲53
=2805AspenColorado, United States 14 US AQI▼27
=2805CorvallisOregon, United States 14 US AQI▼7
=2805RanchettesWyoming, United States 14 US AQI▼23
=2805CharlottetownPrince Edward Island, Canada 14 US AQI▲62
=2805Grande PrairieAlberta, Canada 14 US AQI▲70

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).