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.

=1708Flémalle-HauteWallonia, Belgium 29 US AQI0.4 times the WHO guideline▲205
=1708DeinzeFlanders, Belgium 29 US AQI0.4 times the WHO guideline
=1708WieslochBaden-Wurttemberg, Germany 29 US AQI0.4 times the WHO guideline▲369
=1708Schwäbisch HallBaden-Wurttemberg, Germany 29 US AQI0.4 times the WHO guideline▼123
=1708BebraHesse, Germany 29 US AQI0.4 times the WHO guideline▼97
=1708KillarneyMunster, Ireland 29 US AQI0.4 times the WHO guideline▲720
=1708PérigueuxNew Aquitaine, France 29 US AQI0.4 times the WHO guideline▼220
=1708MarignaneProvence-Alpes-Côte d'Azur, France 29 US AQI0.4 times the WHO guideline▼95
=1708ColmarGrand Est, France 29 US AQI0.4 times the WHO guideline
=1708ItaquaquecetubaSão Paulo, Brazil 29 US AQI0.4 times the WHO guideline▼10
=1708CampinasSão Paulo, Brazil 29 US AQI0.4 times the WHO guideline▼500
=1708NeuquénNeuquen, Argentina 29 US AQI0.4 times the WHO guideline▲617
=1708Belle GladeFlorida, United States 29 US AQI0.4 times the WHO guideline▼117
=1708Palm CityFlorida, United States 29 US AQI0.4 times the WHO guideline▼471
=1708EdgewoodMaryland, United States 29 US AQI0.4 times the WHO guideline▲724
=1708Fort WorthTexas, United States 29 US AQI0.4 times the WHO guideline▲24
=1708KaufmanTexas, United States 29 US AQI0.4 times the WHO guideline▼116
=1708BlairNebraska, United States 29 US AQI0.4 times the WHO guideline▲91
=1708New BrunswickNew Jersey, United States 29 US AQI0.4 times the WHO guideline
=1708El CajonCalifornia, United States 29 US AQI0.4 times the WHO guideline▲154
=1708El RioCalifornia, United States 29 US AQI0.4 times the WHO guideline▲227
=1708LincolnCalifornia, United States 29 US AQI0.4 times the WHO guideline▼764
=1708LomitaCalifornia, United States 29 US AQI0.4 times the WHO guideline
=1708RosevilleCalifornia, United States 29 US AQI0.4 times the WHO guideline▼453
=1708Cottage GroveOregon, United States 29 US AQI0.4 times the WHO guideline▼183
=1708SunnysideWashington, United States 29 US AQI0.4 times the WHO guideline▲351
=1708LemwerderLower Saxony, Germany 29 US AQI0.4 times the WHO guideline▼564
not rankedKudrovoLeningradskaya Oblast', Russia 29 US AQI0.4 times the WHO guideline
not rankedSiem ReapSiem Reap, Cambodia 29 US AQI0.4 times the WHO guideline
not rankedHaaltertFlanders, Belgium 29 US AQI0.4 times the WHO guideline
not rankedWerlNorth Rhine-Westphalia, Germany 29 US AQI0.4 times the WHO guideline
not rankedViernheimHesse, Germany 29 US AQI0.4 times the WHO guideline
not rankedNidderauHesse, Germany 29 US AQI0.4 times the WHO guideline
not rankedMoersNorth Rhine-Westphalia, Germany 29 US AQI0.4 times the WHO guideline
not rankedSzékesfehérvárFejér, Hungary 29 US AQI0.4 times the WHO guideline
=1742KhalándrionAttica, Greece 29 US AQI0.3 times the WHO guideline
=1742RigaRiga, Latvia 29 US AQI0.3 times the WHO guideline▲38
=1742Vranov nad TopľouPrešov Region, Slovakia 29 US AQI0.3 times the WHO guideline▲39
=1742Saint-DenisReunion, Reunion 29 US AQI0.3 times the WHO guideline▲356
=1742YekaterinburgSverdlovsk Oblast, Russia 29 US AQI0.3 times the WHO guideline▲811
=1742NewcastleNew South Wales, Australia 29 US AQI0.3 times the WHO guideline▼969
=1742Thornaby-on-TeesEngland, United Kingdom 29 US AQI0.3 times the WHO guideline▼282
=1742ReadingEngland, United Kingdom 29 US AQI0.3 times the WHO guideline▲854
=1742EastbourneEngland, United Kingdom 29 US AQI0.3 times the WHO guideline▲647
=1742BaselBasel-City, Switzerland 29 US AQI0.3 times the WHO guideline▲329
=1742NijmegenGelderland, The Netherlands 29 US AQI0.3 times the WHO guideline▼211
=1742HoogeveenDrenthe, The Netherlands 29 US AQI0.3 times the WHO guideline▼281
=1742WillebroekFlanders, Belgium 29 US AQI0.3 times the WHO guideline▲15
=1742Neu WulmstorfLower Saxony, Germany 29 US AQI0.3 times the WHO guideline
=1742GelnhausenHesse, Germany 29 US AQI0.3 times the WHO guideline
=1742FriedrichshafenBaden-Wurttemberg, Germany 29 US AQI0.3 times the WHO guideline▲498
=1742Frankfurt (Oder)Brandenburg, Germany 29 US AQI0.3 times the WHO guideline▲443
=1742TallaghtLeinster, Ireland 29 US AQI0.3 times the WHO guideline▲891
=1742BlanchardstownLeinster, Ireland 29 US AQI0.3 times the WHO guideline▲818
=1742NantesPays de la Loire, France 29 US AQI0.3 times the WHO guideline▲609
=1742JonageAuvergne-Rhône-Alpes, France 29 US AQI0.3 times the WHO guideline▲22
=1742DouaiHauts-de-France, France 29 US AQI0.3 times the WHO guideline▲209
=1742SokolovCarlsbad Region, Czechia 29 US AQI0.3 times the WHO guideline▲184
=1742PiracicabaSão Paulo, Brazil 29 US AQI0.3 times the WHO guideline▼456
=1742WellingtonFlorida, United States 29 US AQI0.3 times the WHO guideline▼122
=1742PaulsboroNew Jersey, United States 29 US AQI0.3 times the WHO guideline
=1742Deer ParkTexas, United States 29 US AQI0.3 times the WHO guideline▼120
=1742HelotesTexas, United States 29 US AQI0.3 times the WHO guideline▲247
=1742DanburyConnecticut, United States 29 US AQI0.3 times the WHO guideline▲717
=1742Presque IsleMaine, United States 29 US AQI0.3 times the WHO guideline▼91
=1742AgouraCalifornia, United States 29 US AQI0.3 times the WHO guideline▼7
=1742CarpinteriaCalifornia, United States 29 US AQI0.3 times the WHO guideline▼117
=1742DavisCalifornia, United States 29 US AQI0.3 times the WHO guideline▼583
=1742VallejoCalifornia, United States 29 US AQI0.3 times the WHO guideline▼742
=1742WhittierCalifornia, United States 29 US AQI0.3 times the WHO guideline▼64
=1742ThorntonColorado, United States 29 US AQI0.3 times the WHO guideline▲149
=1742LubbockTexas, United States 29 US AQI0.3 times the WHO guideline▲256
=1742LewistonIdaho, United States 29 US AQI0.3 times the WHO guideline▲484
=1742LaceyWashington, United States 29 US AQI0.3 times the WHO guideline▼147
=1742Port TownsendWashington, United States 29 US AQI0.3 times the WHO guideline▲424
not rankedRandburgGauteng, South Africa 29 US AQI0.3 times the WHO guideline
not rankedSteenbergenNorth Brabant, The Netherlands 29 US AQI0.3 times the WHO guideline
not rankedÜberlingenBaden-Wurttemberg, Germany 29 US AQI0.3 times the WHO guideline
not rankedRadolfzellBaden-Wurttemberg, Germany 29 US AQI0.3 times the WHO guideline
not rankedGermersheimRheinland-Pfalz, Germany 29 US AQI0.3 times the WHO guideline
not rankedBad HersfeldHesse, Germany 29 US AQI0.3 times the WHO guideline
not rankedBad BentheimLower Saxony, Germany 29 US AQI0.3 times the WHO guideline
not rankedCaliValle del Cauca Department, Colombia 29 US AQI0.3 times the WHO guideline
=1782KozániWest Macedonia, Greece 28 US AQI0.3 times the WHO guideline▲52
=1782CampbelltownNew South Wales, Australia 28 US AQI0.3 times the WHO guideline▲54
=1782Southend-on-SeaEngland, United Kingdom 28 US AQI0.3 times the WHO guideline▲606
=1782SeafordEngland, United Kingdom 28 US AQI0.3 times the WHO guideline▲739
=1782Newton AbbotEngland, United Kingdom 28 US AQI0.3 times the WHO guideline▲865
=1782TilburgNorth Brabant, The Netherlands 28 US AQI0.3 times the WHO guideline▼151
=1782BreukelenUtrecht, The Netherlands 28 US AQI0.3 times the WHO guideline▼249
=1782Bernau bei BerlinBrandenburg, Germany 28 US AQI0.3 times the WHO guideline▼297
=1782ToulouseOccitanie, France 28 US AQI0.3 times the WHO guideline▼114
=1782LunévilleGrand Est, France 28 US AQI0.3 times the WHO guideline▼727
=1782DenainHauts-de-France, France 28 US AQI0.3 times the WHO guideline▲261
=1782Banská BystricaBanská Bystrica Region, Slovakia 28 US AQI0.3 times the WHO guideline▲143
=1782ChrastavaLiberec Region, Czechia 28 US AQI0.3 times the WHO guideline▲519
=1782ChanuteKansas, United States 28 US AQI0.3 times the WHO guideline▲14
=1782DentonTexas, United States 28 US AQI0.3 times the WHO guideline▲16
=1782Missouri CityTexas, United States 28 US AQI0.3 times the WHO guideline▲106
=1782GlendoraCalifornia, United States 28 US AQI0.3 times the WHO guideline▲308

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).