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 rankedSendenBavaria, Germany 31 US AQI0.4 times the WHO guideline
not rankedHaltern am SeeNorth Rhine-Westphalia, Germany 31 US AQI0.4 times the WHO guideline
not rankedPruszcz GdańskiPomerania, Poland 31 US AQI0.4 times the WHO guideline
not rankedNormalIllinois, United States 31 US AQI0.4 times the WHO guideline
not rankedJenisonMichigan, United States 31 US AQI0.4 times the WHO guideline
not rankedWaverlyMichigan, United States 31 US AQI0.4 times the WHO guideline
=1648DedovskMoscow Oblast, Russia 31 US AQI0.4 times the WHO guideline▼318
=1648SkopjeGrad Skopje, North Macedonia 31 US AQI0.4 times the WHO guideline▲34
=1648SteenwijkOverijssel, The Netherlands 31 US AQI0.4 times the WHO guideline
=1648StadskanaalGroningen, The Netherlands 31 US AQI0.4 times the WHO guideline▲38
=1648MaassluisSouth Holland, The Netherlands 31 US AQI0.4 times the WHO guideline▲260
=1648LopikUtrecht, The Netherlands 31 US AQI0.4 times the WHO guideline▼15
=1648EdeGelderland, The Netherlands 31 US AQI0.4 times the WHO guideline▼141
=1648LampertheimHesse, Germany 31 US AQI0.4 times the WHO guideline▼112
=1648FuldaHesse, Germany 31 US AQI0.4 times the WHO guideline▼164
=1648DresdenSaxony, Germany 31 US AQI0.4 times the WHO guideline▼823
=1648Saint-ChamondAuvergne-Rhône-Alpes, France 31 US AQI0.4 times the WHO guideline▲201
=1648RouenNormandy, France 31 US AQI0.4 times the WHO guideline▲366
=1648NîmesOccitanie, France 31 US AQI0.4 times the WHO guideline▲392
=1648Montoir-de-BretagnePays de la Loire, France 31 US AQI0.4 times the WHO guideline▲672
=1648LilleHauts-de-France, France 31 US AQI0.4 times the WHO guideline▲143
=1648ChambéryAuvergne-Rhône-Alpes, France 31 US AQI0.4 times the WHO guideline▲304
=1648AuriolProvence-Alpes-Côte d'Azur, France 31 US AQI0.4 times the WHO guideline▼234
=1648ArrasHauts-de-France, France 31 US AQI0.4 times the WHO guideline▲81
=1648PtujUrban Municipality of Ptuj, Slovenia 31 US AQI0.4 times the WHO guideline▲370
=1648MarigotSaint Martin 31 US AQI0.4 times the WHO guideline▲281
=1648Coconut CreekFlorida, United States 31 US AQI0.4 times the WHO guideline▼1
=1648Daytona BeachFlorida, United States 31 US AQI0.4 times the WHO guideline▼361
=1648Delray BeachFlorida, United States 31 US AQI0.4 times the WHO guideline▼199
=1648LafayetteLouisiana, United States 31 US AQI0.4 times the WHO guideline▼272
=1648KearneyMissouri, United States 31 US AQI0.4 times the WHO guideline▲464
=1648Fort DodgeIowa, United States 31 US AQI0.4 times the WHO guideline▼689
=1648PittsfieldMassachusetts, United States 31 US AQI0.4 times the WHO guideline▲959
=1648BanningCalifornia, United States 31 US AQI0.4 times the WHO guideline▲349
=1648BurbankCalifornia, United States 31 US AQI0.4 times the WHO guideline▲179
=1648MantecaCalifornia, United States 31 US AQI0.4 times the WHO guideline▼778
=1648DenverColorado, United States 31 US AQI0.4 times the WHO guideline▲761
=1648BeavertonOregon, United States 31 US AQI0.4 times the WHO guideline▲217
=1648SeattleWashington, United States 31 US AQI0.4 times the WHO guideline▼247
=1648TerraceBritish Columbia, Canada 31 US AQI0.4 times the WHO guideline▼633
not rankedMytishchiMoscow Oblast, Russia 31 US AQI0.4 times the WHO guideline
not rankedNailseaEngland, United Kingdom 31 US AQI0.4 times the WHO guideline
not rankedVoorburgSouth Holland, The Netherlands 31 US AQI0.4 times the WHO guideline
not rankedBerchemFlanders, Belgium 31 US AQI0.4 times the WHO guideline
not rankedSulzbach-RosenbergBavaria, Germany 31 US AQI0.4 times the WHO guideline
not rankedMemmingenBavaria, Germany 31 US AQI0.4 times the WHO guideline
not rankedLangenHesse, Germany 31 US AQI0.4 times the WHO guideline
not rankedHalverNorth Rhine-Westphalia, Germany 31 US AQI0.4 times the WHO guideline
not rankedDorstenNorth Rhine-Westphalia, Germany 31 US AQI0.4 times the WHO guideline
not rankedBad Soden am TaunusHesse, Germany 31 US AQI0.4 times the WHO guideline
not rankedMentorOhio, United States 31 US AQI0.4 times the WHO guideline
not rankedMountain ViewCalifornia, United States no daily values yet31 US AQI0.4 times the WHO guideline
=1682HorleyEngland, United Kingdom 30 US AQI0.4 times the WHO guideline▲874
=1682LeeuwardenFriesland, The Netherlands 30 US AQI0.4 times the WHO guideline▲130
=1682HoogezandGroningen, The Netherlands 30 US AQI0.4 times the WHO guideline▲422
=1682HeerenveenFriesland, The Netherlands 30 US AQI0.4 times the WHO guideline▼199
=1682GroningenGroningen, The Netherlands 30 US AQI0.4 times the WHO guideline▲159
=1682EnschedeOverijssel, The Netherlands 30 US AQI0.4 times the WHO guideline▼553
=1682Wiener NeustadtLower Austria, Austria 30 US AQI0.4 times the WHO guideline▲160
=1682StabroekFlanders, Belgium 30 US AQI0.4 times the WHO guideline▼73
=1682KortrijkFlanders, Belgium 30 US AQI0.4 times the WHO guideline▼44
=1682ErtveldeFlanders, Belgium 30 US AQI0.4 times the WHO guideline▲43
=1682RitterhudeLower Saxony, Germany 30 US AQI0.4 times the WHO guideline▼434
=1682KitzingenBavaria, Germany 30 US AQI0.4 times the WHO guideline
=1682Ingelheim am RheinRheinland-Pfalz, Germany 30 US AQI0.4 times the WHO guideline▲473
=1682Hofheim am TaunusHesse, Germany 30 US AQI0.4 times the WHO guideline▲79
=1682GladbeckNorth Rhine-Westphalia, Germany 30 US AQI0.4 times the WHO guideline
=1682EltvilleHesse, Germany 30 US AQI0.4 times the WHO guideline
=1682BremenBremen, Germany 30 US AQI0.4 times the WHO guideline▼610
=1682BensheimHesse, Germany 30 US AQI0.4 times the WHO guideline▲299
=1682LeixlipLeinster, Ireland 30 US AQI0.4 times the WHO guideline▲841
=1682KolárovoNitra Region, Slovakia 30 US AQI0.4 times the WHO guideline▲478
=1682Heroica MatamorosTamaulipas, Mexico 30 US AQI0.4 times the WHO guideline▲201
=1682ConroeTexas, United States 30 US AQI0.4 times the WHO guideline▲20
=1682CorsicanaTexas, United States 30 US AQI0.4 times the WHO guideline▼134
=1682WindcrestTexas, United States 30 US AQI0.4 times the WHO guideline▲69
=1682BrawleyCalifornia, United States 30 US AQI0.4 times the WHO guideline▼112
=1682SacramentoCalifornia, United States 30 US AQI0.4 times the WHO guideline▼700
not rankedKostromaKostroma Oblast, Russia 30 US AQI0.4 times the WHO guideline
not rankedVasluiVaslui County, Romania 30 US AQI0.4 times the WHO guideline
not rankedLos AlcázaresMurcia, Spain 30 US AQI0.4 times the WHO guideline
not rankedWaalwijkNorth Brabant, The Netherlands 30 US AQI0.4 times the WHO guideline
not rankedLisseSouth Holland, The Netherlands 30 US AQI0.4 times the WHO guideline
not rankedBoxtelNorth Brabant, The Netherlands 30 US AQI0.4 times the WHO guideline
not rankedHoogstratenFlanders, Belgium 30 US AQI0.4 times the WHO guideline
not rankedBevereFlanders, Belgium 30 US AQI0.4 times the WHO guideline
not rankedWermelskirchenNorth Rhine-Westphalia, Germany 30 US AQI0.4 times the WHO guideline
not rankedCastrop-RauxelNorth Rhine-Westphalia, Germany 30 US AQI0.4 times the WHO guideline
not rankedButzbachHesse, Germany 30 US AQI0.4 times the WHO guideline
not rankedPlottierNeuquen, Argentina 30 US AQI0.4 times the WHO guideline
not rankedBirminghamMichigan, United States 30 US AQI0.4 times the WHO guideline
not rankedEl SegundoCalifornia, United States 30 US AQI0.4 times the WHO guideline
not rankedBainbridge IslandWashington, United States 30 US AQI0.4 times the WHO guideline
=1708DolgoprudnyyMoscow Oblast, Russia 29 US AQI0.4 times the WHO guideline▼528
=1708HonitonEngland, United Kingdom 29 US AQI0.4 times the WHO guideline▲889
=1708ChristchurchEngland, United Kingdom 29 US AQI0.4 times the WHO guideline▲924
=1708AylesburyEngland, United Kingdom 29 US AQI0.4 times the WHO guideline▲792
=1708AssenDrenthe, The Netherlands 29 US AQI0.4 times the WHO guideline▼74
=1708RoeselareFlanders, Belgium 29 US AQI0.4 times the WHO guideline▼46
=1708MeulebekeFlanders, Belgium 29 US AQI0.4 times the WHO guideline▼45

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).