All 2,895 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 in Spain: no readings since 13 Oct (310 monitors). Their cities show older figures or are missing from this board, not clean.

Show 303 cities with only 1–2 sensors

=2701WorcesterEngland, United Kingdom 18 US AQI▲48
=2701StreetEngland, United Kingdom 18 US AQI▲99
=2701MiddlesbroughEngland, United Kingdom 18 US AQI▼4
=2701Cheadle HulmeEngland, United Kingdom 18 US AQI▲50
=2701GreystonesLeinster, Ireland 18 US AQI▲70
=2701TroyesGrand Est, France 18 US AQI▲36
=2701PauNew Aquitaine, France 18 US AQI▼45
=2701AuriolProvence-Alpes-Côte d'Azur, France 18 US AQI▼19
=2701FraminghamMassachusetts, United States 18 US AQI▲156
=2701OjaiCalifornia, United States 18 US AQI▲62
=2701PriceUtah, United States 18 US AQI▼57
=2701Hood RiverOregon, United States 18 US AQI▲15
=2701Mount VernonWashington, United States 18 US AQI▲18
=2701WorlandWyoming, United States 18 US AQI▲20
=2701KingstonOntario, Canada 18 US AQI▲141
=2701Summerlin SouthNevada, United States 18 US AQI▲27
=2717LappeenrantaSouth Karelia, Finland 17 US AQI▲101
=2717LourinhãLisbon, Portugal 17 US AQI▲67
=2717SwindonEngland, United Kingdom 17 US AQI▲117
=2717ReadingEngland, United Kingdom 17 US AQI▲68
=2717Milton KeynesEngland, United Kingdom 17 US AQI▲52
=2717IrlamEngland, United Kingdom 17 US AQI▲53
=2717CannockEngland, United Kingdom 17 US AQI▲35
=2717GothenburgVästra Götaland, Sweden 17 US AQI▼242
=2717TrochtelfingenBaden-Wurttemberg, Germany 17 US AQI▼14
=2717BrayLeinster, Ireland 17 US AQI▲55
=2717Salon-de-ProvenceProvence-Alpes-Côte d'Azur, France 17 US AQI▼106
=2717RevinGrand Est, France 17 US AQI▼12
=2717les EscaldesEscaldes-Engordany, Andorra 17 US AQI▲21
=2717North ChicopeeMassachusetts, United States 17 US AQI▲121
=2717LewistonMaine, United States 17 US AQI▲92
=2717Syracuselast full day 11 OctNew York, United States 17 US AQI▲76
=2717RedmondOregon, United States 17 US AQI▲94
=2717BathurstNew Brunswick, Canada 17 US AQI▲100
=2735HonitonEngland, United Kingdom 17 US AQI▲66
=2735DunholmeEngland, United Kingdom 17 US AQI▼37
=2735CreweEngland, United Kingdom 17 US AQI▲68
=2735GroßalmerodeHesse, Germany 17 US AQI▼125
=2735TarbesOccitanie, France 17 US AQI▼81
=2735MontluçonAuvergne-Rhône-Alpes, France 17 US AQI▼123
=2735LunelOccitanie, France 17 US AQI▲71
=2735LondonderryNew Hampshire, United States 17 US AQI▲75
=2735PortsmouthNew Hampshire, United States 17 US AQI▲91
=2735Mount Ivylast full day 11 OctNew York, United States 17 US AQI▲123
=2735DeltaColorado, United States 17 US AQI▼94
=2735Boulder CityNevada, United States 17 US AQI▲44
=2735GreenOregon, United States 17 US AQI▲61
=2735Hawaiian Paradise ParkHawaii, United States 17 US AQI▲96
=2735PalmerAlaska, United States 17 US AQI▲106
=2735Campbell RiverBritish Columbia, Canada 17 US AQI▲78
=2735GranbyQuebec, Canada 17 US AQI▲32
=2735Sault Ste. MarieOntario, Canada 17 US AQI▲80
=2735Sydneylast full day 11 OctNova Scotia, Canada 17 US AQI▲81
=2735EdertalHesse, Germany 17 US AQI▲13
=2755CorroiosSetúbal, Portugal 16 US AQI▼25
=2755Grao de MurviedroValencia, Spain 16 US AQI
=2755OxfordEngland, United Kingdom 16 US AQI▲80
=2755Market DeepingEngland, United Kingdom 16 US AQI▼5
=2755HalesworthEngland, United Kingdom 16 US AQI▲47
=2755MonsWallonia, Belgium 16 US AQI▼175
=2755OlpeNorth Rhine-Westphalia, Germany 16 US AQI
=2755LillehammerInnlandet, Norway 16 US AQI▲33
=2755ReykjavíkCapital Region, Iceland 16 US AQI▲101
=2755South LaurelMaryland, United States 16 US AQI▲3
=2755BangorMaine, United States 16 US AQI▲53
=2755BenningtonVermont, United States 16 US AQI▲117
=2755Big Bear CityCalifornia, United States 16 US AQI▲39
=2755MesquiteNevada, United States 16 US AQI▲25
=2755Steamboat SpringsColorado, United States 16 US AQI▼40
=2755Heber CityUtah, United States 16 US AQI▼38
=2755Fort St. JohnBritish Columbia, Canada 16 US AQI▲129
=2755Parry SoundOntario, Canada 16 US AQI▲105
=2773VantaaUusimaa, Finland 16 US AQI▲73
=2773ShrewsburyEngland, United Kingdom 16 US AQI▲77
=2773BurwellEngland, United Kingdom 16 US AQI▲46
=2773Herrsching am AmmerseeBavaria, Germany 16 US AQI▼93
=2773KillarneyMunster, Ireland 16 US AQI▲98
=2773OsloOslo, Norway 16 US AQI▲106
=2773TelfordEngland, United Kingdom 16 US AQI▲34
=2773Cañon CityColorado, United States 16 US AQI▲5
=2773NewportOregon, United States 16 US AQI▲67
=2773BellevueWashington, United States 16 US AQI▲39
=2773MeadWashington, United States 16 US AQI▼9
=2773RivertonWyoming, United States 16 US AQI▲9
=2773DrummondvilleQuebec, Canada 16 US AQI▲41
=2773SherbrookeQuebec, Canada 16 US AQI▲25
=2787OuluNorth Ostrobothnia, Finland 15 US AQI▲12
=2787LohjaUusimaa, Finland 15 US AQI▲60
=2787LaaksolahtiUusimaa, Finland 15 US AQI▲61
=2787HelsinkiUusimaa, Finland 15 US AQI▲46
=2787WrexhamWales, United Kingdom 15 US AQI▲62
=2787Newton AbbotEngland, United Kingdom 15 US AQI▲75
=2787AndoverEngland, United Kingdom 15 US AQI▲65
=2787KüssnachtSchwyz, Switzerland 15 US AQI▼34
=2787Clermont-FerrandAuvergne-Rhône-Alpes, France 15 US AQI▼81
=2787AurillacAuvergne-Rhône-Alpes, France 15 US AQI▼80
=2787WareMassachusetts, United States 15 US AQI▲93
=2787HavreMontana, United States 15 US AQI▲8
=2787LaramieWyoming, United States 15 US AQI▲41
=2787RawlinsWyoming, United States 15 US AQI▲42

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 7 days to 14 Oct 2026, 07:00 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 07:07 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).