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.

=2805MonctonNew Brunswick, Canada 14 US AQI▲71
=2805WhistlerBritish Columbia, Canada 14 US AQI▲42
=2817ChepstowWales, United Kingdom 14 US AQI▲53
=2817GersfeldHesse, Germany 14 US AQI▲7
=2817FüssenBavaria, Germany 14 US AQI
=2817LourdesOccitanie, France 14 US AQI▲8
=2817AngletNew Aquitaine, France 14 US AQI
=2817FredrikstadØstfold, Norway 14 US AQI▲76
=2817Angra do HeroísmoAzores, Portugal 14 US AQI
=2817BurlingtonVermont, United States 14 US AQI▲64
=2817MiddletonWisconsin, United States 14 US AQI
=2817Casas AdobesArizona, United States 14 US AQI▲49
=2817CheneyWashington, United States 14 US AQI▼2
=2817FrederictonNew Brunswick, Canada 14 US AQI▲57
=2817North BayOntario, Canada 14 US AQI▲28
=2817North CowichanBritish Columbia, Canada 14 US AQI▲1
not rankedSpaldingEngland, United Kingdom 14 US AQI
not rankedNew Smyrna BeachFlorida, United States 14 US AQI
not rankedDoverNew Hampshire, United States 14 US AQI
=2831UmeåVästerbotten, Sweden 13 US AQI▲46
=2831MorwellVictoria, Australia 13 US AQI
=2831MoeVictoria, Australia 13 US AQI
=2831InvernessScotland, United Kingdom 13 US AQI▲23
=2831NamurWallonia, Belgium 13 US AQI▼24
=2831HartfordVermont, United States 13 US AQI▲51
=2831KentvilleNova Scotia, Canada 13 US AQI▲53
not rankedPooleEngland, United Kingdom 13 US AQI
=2838Castelló de la PlanaValencia, Spain 13 US AQI
=2838CharleroiWallonia, Belgium 13 US AQI▼136
=2838PorsgrunnTelemark, Norway 13 US AQI▲63
=2838GarðabærCapital Region, Iceland 13 US AQI▲56
=2838LanderWyoming, United States 13 US AQI▲35
=2838Fort McMurrayAlberta, Canada 13 US AQI▲45
=2838NepeanOntario, Canada 13 US AQI▲47
=2838Sept-ÎlesQuebec, Canada 13 US AQI▲59
=2838KallahtiUusimaa, Finland 13 US AQI▲54
not rankedKangasalaPirkanmaa, Finland 13 US AQI
=2847BallaratVictoria, Australia 12 US AQI
=2847SaltashEngland, United Kingdom 12 US AQI▲52
=2847PickeringEngland, United Kingdom 12 US AQI▲53
=2847ÖrebroÖrebro, Sweden 12 US AQI▲60
=2847JumetWallonia, Belgium 12 US AQI▼112
=2847BenicàssimValencia, Spain 12 US AQI
=2847HonoluluHawaii, United States 12 US AQI▲48
=2847Fort St. JohnBritish Columbia, Canada 12 US AQI▲41
=2847MiramichiNew Brunswick, Canada 12 US AQI▲49
=2847Rouyn-NorandaQuebec, Canada 12 US AQI▲42
=2847Grand CentreAlberta, Canada 12 US AQI▲44
not rankedKingswoodEngland, United Kingdom 12 US AQI
not rankedWest MelbourneFlorida, United States 12 US AQI
=2858TamperePirkanmaa, Finland 12 US AQI▲45
=2858MilduraVictoria, Australia 12 US AQI
=2858ChampionWallonia, Belgium 12 US AQI▼1
=2861HämeenkyläUusimaa, Finland 11 US AQI▲44
=2861Petite-ÎleReunion, Reunion 11 US AQI▲25
=2861PenicuikScotland, United Kingdom 11 US AQI▲17
=2861DerryNorthern Ireland, United Kingdom 11 US AQI▲54
=2861ÖstersundJämtland, Sweden 11 US AQI▲45
=2861ÖrnsköldsvikVästernorrland, Sweden 11 US AQI▲55
=2861HärnösandVästernorrland, Sweden 11 US AQI▲47
not rankedNewburyEngland, United Kingdom 11 US AQI
not rankedJuneauAlaska, United States 11 US AQI
=2868LahtiPaijat-Hame, Finland 11 US AQI▲36
=2868SundsvallVästernorrland, Sweden 11 US AQI▲42
=2868Vila RealVila Real, Portugal 11 US AQI▲43
=2868EupenWallonia, Belgium 11 US AQI▼12
=2868BergenVestland, Norway 11 US AQI▼42
=2868HortaAzores, Portugal 11 US AQI▲34
=2874PoriSatakunta, Finland 10 US AQI▲40
=2874LaconiaNew Hampshire, United States 10 US AQI▲38
=2876HedemoraDalarna, Sweden 9 US AQI▲45
=2876DrammenBuskerud, Norway 9 US AQI▲33
=2878JyväskyläCentral Finland, Finland 9 US AQI▲44
=2878Ponta DelgadaAzores, Portugal 9 US AQI
=2880BendigoVictoria, Australia 8 US AQI
=2880AnsWallonia, Belgium 8 US AQI▲7
=2880AnacortesWashington, United States 8 US AQI▲40
not rankedLeighton BuzzardEngland, United Kingdom 8 US AQI
not rankedFlorenceArizona, United States 8 US AQI
=2883KuopioNorth Savo, Finland 8 US AQI▲41
=2883StawellVictoria, Australia 8 US AQI
=2883Sweet HomeOregon, United States 8 US AQI▲30
=2886KarlstadVärmland, Sweden 7 US AQI▲33
=2886HamoisWallonia, Belgium 7 US AQI▲31
=2886BertrixWallonia, Belgium 7 US AQI▲32
=2886YellowknifeNorthwest Territories, Canada 7 US AQI▲37
2890CouvinWallonia, Belgium 6 US AQI▲35
2891Labrador CityNewfoundland and Labrador, Canada 6 US AQI▲35
2892Swan HillVictoria, Australia 1 US AQI
=2893HammanskraalNorth West, South Africa 0 US AQI▲34
=2893Victoria de DurangoDurango, Mexico 0 US AQI▲35

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).