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.

=1864WakefieldEngland, United Kingdom 27 US AQI0.3 times the WHO guideline▼261
=1864BrightlingseaEngland, United Kingdom 27 US AQI0.3 times the WHO guideline▲238
=1864LuganoTicino, Switzerland 27 US AQI0.3 times the WHO guideline▲239
=1864MusselkanaalGroningen, The Netherlands 27 US AQI0.3 times the WHO guideline▼232
=1864DrunenNorth Brabant, The Netherlands 27 US AQI0.3 times the WHO guideline
=1864GenkFlanders, Belgium 27 US AQI0.3 times the WHO guideline▲172
=1864NauenBrandenburg, Germany 27 US AQI0.3 times the WHO guideline▼172
=1864MichelstadtHesse, Germany 27 US AQI0.3 times the WHO guideline▼278
=1864LubnjowBrandenburg, Germany 27 US AQI0.3 times the WHO guideline▲561
=1864IdsteinHesse, Germany 27 US AQI0.3 times the WHO guideline
=1864DelmenhorstLower Saxony, Germany 27 US AQI0.3 times the WHO guideline
=1864NaasLeinster, Ireland 27 US AQI0.3 times the WHO guideline▲757
=1864Dún LaoghaireLeinster, Ireland 27 US AQI0.3 times the WHO guideline▲148
=1864DundalkLeinster, Ireland 27 US AQI0.3 times the WHO guideline▲409
=1864Fos-sur-MerProvence-Alpes-Côte d'Azur, France 27 US AQI0.3 times the WHO guideline▲86
=1864ÉpinalGrand Est, France 27 US AQI0.3 times the WHO guideline▲118
=1864Reggio nell'EmiliaEmilia-Romagna, Italy 27 US AQI0.3 times the WHO guideline▼471
=1864Nova GoricaUrban Municipality of Nova Gorica, Slovenia 27 US AQI0.3 times the WHO guideline▲678
=1864BauruSão Paulo, Brazil 27 US AQI0.3 times the WHO guideline▼1349
=1864Le LamentinMartinique, Martinique 27 US AQI0.3 times the WHO guideline▼348
=1864BrownsvilleTexas, United States 27 US AQI0.3 times the WHO guideline▲22
=1864RochesterMinnesota, United States 27 US AQI0.3 times the WHO guideline▼1177
=1864SeasideCalifornia, United States 27 US AQI0.3 times the WHO guideline▼128
=1864Simi ValleyCalifornia, United States 27 US AQI0.3 times the WHO guideline▼428
=1864StocktonCalifornia, United States 27 US AQI0.3 times the WHO guideline▼608
=1864Spanish SpringsNevada, United States 27 US AQI0.3 times the WHO guideline▼86
=1864AltamontOregon, United States 27 US AQI0.3 times the WHO guideline▲497
=1864EdsonAlberta, Canada 27 US AQI0.3 times the WHO guideline▼34
=1864BathurstNew Brunswick, Canada 27 US AQI0.3 times the WHO guideline▲522
=1864ThrakomakedónesAttica, Greece 27 US AQI0.3 times the WHO guideline▼462
=1864SachsenheimBaden-Wurttemberg, Germany 27 US AQI0.3 times the WHO guideline
not rankedTulaTula Oblast, Russia 27 US AQI0.3 times the WHO guideline
not rankedLytkarinoMoscow Oblast, Russia 27 US AQI0.3 times the WHO guideline
not rankedMyskiKuzbass, Russia 27 US AQI0.3 times the WHO guideline
not rankedOldenzaalOverijssel, The Netherlands 27 US AQI0.3 times the WHO guideline
not rankedLoon op ZandNorth Brabant, The Netherlands 27 US AQI0.3 times the WHO guideline
not rankedOudenaardeFlanders, Belgium 27 US AQI0.3 times the WHO guideline
not rankedWeißwasserSaxony, Germany 27 US AQI0.3 times the WHO guideline
not rankedKonzRheinland-Pfalz, Germany 27 US AQI0.3 times the WHO guideline
not rankedGroßostheimBavaria, Germany 27 US AQI0.3 times the WHO guideline
not rankedFriedbergBavaria, Germany 27 US AQI0.3 times the WHO guideline
not rankedDormagenNorth Rhine-Westphalia, Germany 27 US AQI0.3 times the WHO guideline
not rankedChamBavaria, Germany 27 US AQI0.3 times the WHO guideline
not rankedNorth Fort MyersFlorida, United States 27 US AQI0.3 times the WHO guideline
not rankedPetalumaCalifornia, United States 27 US AQI0.3 times the WHO guideline
not rankedSalmon CreekWashington, United States 27 US AQI0.3 times the WHO guideline
=1898KošiceKošice Region, Slovakia 26 US AQI0.3 times the WHO guideline▲132
=1898WorcesterEngland, United Kingdom 26 US AQI0.3 times the WHO guideline▲572
=1898Newcastle upon TyneEngland, United Kingdom 26 US AQI0.3 times the WHO guideline▼696
=1898HooEngland, United Kingdom 26 US AQI0.3 times the WHO guideline▲525
=1898WaalreNorth Brabant, The Netherlands 26 US AQI0.3 times the WHO guideline▼241
=1898UdenNorth Brabant, The Netherlands 26 US AQI0.3 times the WHO guideline
=1898GoudaSouth Holland, The Netherlands 26 US AQI0.3 times the WHO guideline▼1691
=1898EpeGelderland, The Netherlands 26 US AQI0.3 times the WHO guideline
=1898UetersenSchleswig-Holstein, Germany 26 US AQI0.3 times the WHO guideline
=1898SykeLower Saxony, Germany 26 US AQI0.3 times the WHO guideline
=1898KarlsruheBaden-Wurttemberg, Germany 26 US AQI0.3 times the WHO guideline▲180
=1898RognacProvence-Alpes-Côte d'Azur, France 26 US AQI0.3 times the WHO guideline▼286
=1898Chalon-sur-SaôneBourgogne-Franche-Comté, France 26 US AQI0.3 times the WHO guideline▼408
=1898les EscaldesEscaldes-Engordany, Andorra 26 US AQI0.3 times the WHO guideline▲58
=1898KomárnoNitra Region, Slovakia 26 US AQI0.3 times the WHO guideline
=1898FilderstadtBaden-Wurttemberg, Germany 26 US AQI0.3 times the WHO guideline▼168
=1898HalfwayMaryland, United States 26 US AQI0.3 times the WHO guideline
=1898Roanoke RapidsNorth Carolina, United States 26 US AQI0.3 times the WHO guideline▲295
=1898Toms RiverNew Jersey, United States 26 US AQI0.3 times the WHO guideline▼148
=1898AnkenyIowa, United States 26 US AQI0.3 times the WHO guideline▼466
=1898BellevueNebraska, United States 26 US AQI0.3 times the WHO guideline▼145
=1898BenningtonVermont, United States 26 US AQI0.3 times the WHO guideline▲384
=1898HollisterCalifornia, United States 26 US AQI0.3 times the WHO guideline▼326
=1898LongmontColorado, United States 26 US AQI0.3 times the WHO guideline▲299
=1898LockwoodMontana, United States 26 US AQI0.3 times the WHO guideline▲101
=1898North PortlandOregon, United States 26 US AQI0.3 times the WHO guideline▼32
=1898ChehalisWashington, United States 26 US AQI0.3 times the WHO guideline▼322
=1898FairbanksAlaska, United States 26 US AQI0.3 times the WHO guideline▲394
=1898RichmondBritish Columbia, Canada 26 US AQI0.3 times the WHO guideline▲44
=1898VancouverBritish Columbia, Canada 26 US AQI0.3 times the WHO guideline▼66
not rankedDrozhzhinoMoscow Oblast, Russia 26 US AQI0.3 times the WHO guideline
not rankedZedelgemFlanders, Belgium 26 US AQI0.3 times the WHO guideline
not rankedWerdohlNorth Rhine-Westphalia, Germany 26 US AQI0.3 times the WHO guideline
not rankedOsterholz-ScharmbeckLower Saxony, Germany 26 US AQI0.3 times the WHO guideline
not rankedÖhringenBaden-Wurttemberg, Germany 26 US AQI0.3 times the WHO guideline
not rankedHövelhofNorth Rhine-Westphalia, Germany 26 US AQI0.3 times the WHO guideline
not rankedHarenLower Saxony, Germany 26 US AQI0.3 times the WHO guideline
not rankedBingen am RheinRheinland-Pfalz, Germany 26 US AQI0.3 times the WHO guideline
not rankedBietigheim-BissingenBaden-Wurttemberg, Germany 26 US AQI0.3 times the WHO guideline
not rankedErmuaBasque Country, Spain 26 US AQI0.3 times the WHO guideline
not rankedNeukirchen-VluynNorth Rhine-Westphalia, Germany 26 US AQI0.3 times the WHO guideline
=1928MoscowMoscow, Russia 26 US AQI0.3 times the WHO guideline▼1190
=1928Veliko TŭrnovoVeliko Tarnovo, Bulgaria 26 US AQI0.3 times the WHO guideline▲169
=1928KujiIwate, Japan 26 US AQI0.3 times the WHO guideline▼449
=1928RotherhamEngland, United Kingdom 26 US AQI0.3 times the WHO guideline▼184
=1928NottinghamEngland, United Kingdom 26 US AQI0.3 times the WHO guideline▲17
=1928LiverpoolEngland, United Kingdom 26 US AQI0.3 times the WHO guideline▲417
=1928Kingston upon HullEngland, United Kingdom 26 US AQI0.3 times the WHO guideline▼349
=1928MeppelDrenthe, The Netherlands 26 US AQI0.3 times the WHO guideline▼559
=1928EibergenGelderland, The Netherlands 26 US AQI0.3 times the WHO guideline▼573
=1928AmersfoortUtrecht, The Netherlands 26 US AQI0.3 times the WHO guideline▼571
=1928Wendlingen am NeckarBaden-Wurttemberg, Germany 26 US AQI0.3 times the WHO guideline▼14
=1928PotsdamBrandenburg, Germany 26 US AQI0.3 times the WHO guideline▼54
=1928NorderstedtSchleswig-Holstein, Germany 26 US AQI0.3 times the WHO guideline▼975

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).