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.

not rankedWunstorfLower Saxony, Germany 16 US AQI0.2 times the WHO guideline
not rankedVarelLower Saxony, Germany 16 US AQI0.2 times the WHO guideline
not rankedHansestadt SalzwedelSaxony-Anhalt, Germany 16 US AQI0.2 times the WHO guideline
not rankedMössingenBaden-Wurttemberg, Germany 16 US AQI0.2 times the WHO guideline
not rankedGrimmaSaxony, Germany 16 US AQI0.2 times the WHO guideline
not rankedGerlingenBaden-Wurttemberg, Germany 16 US AQI0.2 times the WHO guideline
not rankedBrakelNorth Rhine-Westphalia, Germany 16 US AQI0.2 times the WHO guideline
not rankedAlsdorfNorth Rhine-Westphalia, Germany 16 US AQI0.2 times the WHO guideline
not rankedWoburnMassachusetts, United States 16 US AQI0.2 times the WHO guideline
not rankedSammamishWashington, United States 16 US AQI0.2 times the WHO guideline
=2405LourinhãLisbon, Portugal 16 US AQI0.2 times the WHO guideline▲259
=2405SheringhamEngland, United Kingdom 16 US AQI0.2 times the WHO guideline
=2405AberdeenScotland, United Kingdom 16 US AQI0.2 times the WHO guideline▼1433
=2405LelystadFlevoland, The Netherlands 16 US AQI0.2 times the WHO guideline▼658
=2405HeverleeFlanders, Belgium 16 US AQI0.2 times the WHO guideline▼137
=2405EsslingenBaden-Wurttemberg, Germany 16 US AQI0.2 times the WHO guideline▼963
=2405Bergisch GladbachNorth Rhine-Westphalia, Germany 16 US AQI0.2 times the WHO guideline
=2405VillefontaineAuvergne-Rhône-Alpes, France 16 US AQI0.2 times the WHO guideline
=2405La RochelleNew Aquitaine, France 16 US AQI0.2 times the WHO guideline
=2405GyöngyösHeves County, Hungary 16 US AQI0.2 times the WHO guideline▲158
=2405WatertownSouth Dakota, United States 16 US AQI0.2 times the WHO guideline▲58
=2405GaltCalifornia, United States 16 US AQI0.2 times the WHO guideline
=2405ScottsbluffNebraska, United States 16 US AQI0.2 times the WHO guideline▼1112
=2405BellevueWashington, United States 16 US AQI0.2 times the WHO guideline▲12
=2405Columbia CityWashington, United States 16 US AQI0.2 times the WHO guideline
=2405ProsserWashington, United States 16 US AQI0.2 times the WHO guideline▼22
=2405SpokaneWashington, United States 16 US AQI0.2 times the WHO guideline▲268
=2405Port AlberniBritish Columbia, Canada 16 US AQI0.2 times the WHO guideline▼1210
=2405Prince AlbertSaskatchewan, Canada 16 US AQI0.2 times the WHO guideline▲177
=2405EdertalHesse, Germany 16 US AQI0.2 times the WHO guideline▼63
not rankedLimassolLimassol, Cyprus 16 US AQI0.2 times the WHO guideline
not rankedVasil’yevoTatarstan Republic, Russia 16 US AQI0.2 times the WHO guideline
not rankedKrasnoobskNovosibirsk Oblast, Russia 16 US AQI0.2 times the WHO guideline
not rankedDarwinNorthern Territory, Australia 16 US AQI0.2 times the WHO guideline
not rankedStourbridgeEngland, United Kingdom 16 US AQI0.2 times the WHO guideline
not rankedPurleyEngland, United Kingdom 16 US AQI0.2 times the WHO guideline
not rankedStekeneFlanders, Belgium 16 US AQI0.2 times the WHO guideline
not rankedRotselaarFlanders, Belgium 16 US AQI0.2 times the WHO guideline
not rankedMortselFlanders, Belgium 16 US AQI0.2 times the WHO guideline
not rankedMayenRheinland-Pfalz, Germany 16 US AQI0.2 times the WHO guideline
not rankedEngerNorth Rhine-Westphalia, Germany 16 US AQI0.2 times the WHO guideline
not rankedBornheimNorth Rhine-Westphalia, Germany 16 US AQI0.2 times the WHO guideline
not rankedBoppardRheinland-Pfalz, Germany 16 US AQI0.2 times the WHO guideline
not rankedBad Münder am DeisterLower Saxony, Germany 16 US AQI0.2 times the WHO guideline
not rankedPessacNew Aquitaine, France 16 US AQI0.2 times the WHO guideline
not rankedThornton-CleveleysEngland, United Kingdom 16 US AQI0.2 times the WHO guideline
=2425KolpinoSt.-Petersburg, Russia 15 US AQI0.2 times the WHO guideline▲127
=2425KorolevMoscow Oblast, Russia 15 US AQI0.2 times the WHO guideline▼1522
=2425DupnitsaKyustendil, Bulgaria 15 US AQI0.2 times the WHO guideline
=2425GrevenáWest Macedonia, Greece 15 US AQI0.2 times the WHO guideline▼1227
=2425MiddlesbroughEngland, United Kingdom 15 US AQI0.2 times the WHO guideline▼299
=2425SittardLimburg, The Netherlands 15 US AQI0.2 times the WHO guideline▼243
=2425RavensburgBaden-Wurttemberg, Germany 15 US AQI0.2 times the WHO guideline
=2425MetzingenBaden-Wurttemberg, Germany 15 US AQI0.2 times the WHO guideline
=2425LeopoldshöheNorth Rhine-Westphalia, Germany 15 US AQI0.2 times the WHO guideline
=2425GrevenbroichNorth Rhine-Westphalia, Germany 15 US AQI0.2 times the WHO guideline
=2425GifhornLower Saxony, Germany 15 US AQI0.2 times the WHO guideline
=2425LourdesOccitanie, France 15 US AQI0.2 times the WHO guideline▲4
=2425Beaumont-sur-OiseÎle-de-France, France 15 US AQI0.2 times the WHO guideline▼317
=2425MinneapolisMinnesota, United States 15 US AQI0.2 times the WHO guideline▼1829
=2425VirginiaMinnesota, United States 15 US AQI0.2 times the WHO guideline▼463
=2425TempeArizona, United States 15 US AQI0.2 times the WHO guideline▼337
=2425WoodlandCalifornia, United States 15 US AQI0.2 times the WHO guideline
=2425North ValleyNew Mexico, United States 15 US AQI0.2 times the WHO guideline▼533
=2425HendersonNevada, United States 15 US AQI0.2 times the WHO guideline▼65
=2425Spring ValleyNevada, United States 15 US AQI0.2 times the WHO guideline▼89
=2425BoiseIdaho, United States 15 US AQI0.2 times the WHO guideline▼13
=2425NewportOregon, United States 15 US AQI0.2 times the WHO guideline▼88
=2425EphrataWashington, United States 15 US AQI0.2 times the WHO guideline▲187
=2425HonoluluHawaii, United States 15 US AQI0.2 times the WHO guideline▲163
=2425AirdrieAlberta, Canada 15 US AQI0.2 times the WHO guideline▼86
=2425CharlottetownPrince Edward Island, Canada 15 US AQI0.2 times the WHO guideline▼258
=2425Sept-ÎlesQuebec, Canada 15 US AQI0.2 times the WHO guideline▲232
not rankedLevinManawatu-Wanganui, New Zealand 15 US AQI0.2 times the WHO guideline
not rankedWelwyn Garden CityEngland, United Kingdom 15 US AQI0.2 times the WHO guideline
not rankedExmouthEngland, United Kingdom 15 US AQI0.2 times the WHO guideline
not rankedWeil der StadtBaden-Wurttemberg, Germany 15 US AQI0.2 times the WHO guideline
not rankedWaldkirchBaden-Wurttemberg, Germany 15 US AQI0.2 times the WHO guideline
not rankedGarmisch-PartenkirchenBavaria, Germany 15 US AQI0.2 times the WHO guideline
not rankedEilenburgSaxony, Germany 15 US AQI0.2 times the WHO guideline
not rankedBrettenBaden-Wurttemberg, Germany 15 US AQI0.2 times the WHO guideline
not rankedVilla MaríaCordoba, Argentina 15 US AQI0.2 times the WHO guideline
=2452KuopioNorth Savo, Finland 14 US AQI0.2 times the WHO guideline▲42
=2452HelsinkiUusimaa, Finland 14 US AQI0.2 times the WHO guideline▲78
=2452PickeringEngland, United Kingdom 14 US AQI0.2 times the WHO guideline
=2452HärnösandVästernorrland, Sweden 14 US AQI0.2 times the WHO guideline
=2452VenloLimburg, The Netherlands 14 US AQI0.2 times the WHO guideline
=2452LeuvenFlanders, Belgium 14 US AQI0.2 times the WHO guideline▼320
=2452Esch-sur-AlzetteEsch-sur-Alzette, Luxembourg 14 US AQI0.2 times the WHO guideline▼633
=2452RambouilletÎle-de-France, France 14 US AQI0.2 times the WHO guideline▼294
=2452OrléansCentre-Val de Loire, France 14 US AQI0.2 times the WHO guideline▼413
=2452CastresOccitanie, France 14 US AQI0.2 times the WHO guideline▼499
=2452BlaineMinnesota, United States 14 US AQI0.2 times the WHO guideline▼1525
=2452BurlingtonVermont, United States 14 US AQI0.2 times the WHO guideline▼169
=2452FinleyWashington, United States 14 US AQI0.2 times the WHO guideline▲65
not rankedSertolovoLeningradskaya Oblast', Russia 14 US AQI0.2 times the WHO guideline
not rankedNăvodariConstanța County, Romania 14 US AQI0.2 times the WHO guideline
not rankedMarratxíBalearic Islands, Spain 14 US AQI0.2 times the WHO guideline
not rankedIpswichEngland, United Kingdom 14 US AQI0.2 times the WHO guideline
not rankedGeleenLimburg, The Netherlands 14 US AQI0.2 times the WHO guideline

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.

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 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).