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.

=1928Heppenheim an der BergstrasseHesse, Germany 26 US AQI0.3 times the WHO guideline
=1928HeidelbergBaden-Wurttemberg, Germany 26 US AQI0.3 times the WHO guideline▲311
=1928EisenhüttenstadtBrandenburg, Germany 26 US AQI0.3 times the WHO guideline▲467
=1928MarmandeNew Aquitaine, France 26 US AQI0.3 times the WHO guideline▼679
=1928CrollesAuvergne-Rhône-Alpes, France 26 US AQI0.3 times the WHO guideline▼8
=1928AmiensHauts-de-France, France 26 US AQI0.3 times the WHO guideline▲27
=1928AcerraCampania, Italy 26 US AQI0.3 times the WHO guideline▼532
=1928AustinTexas, United States 26 US AQI0.3 times the WHO guideline▼43
=1928River OaksTexas, United States 26 US AQI0.3 times the WHO guideline▲321
=1928TomahWisconsin, United States 26 US AQI0.3 times the WHO guideline▼891
=1928GoletaCalifornia, United States 26 US AQI0.3 times the WHO guideline▲479
=1928InglewoodCalifornia, United States 26 US AQI0.3 times the WHO guideline▲212
=1928Santa MonicaCalifornia, United States 26 US AQI0.3 times the WHO guideline▲164
=1928NampaIdaho, United States 26 US AQI0.3 times the WHO guideline▼248
=1928PrestonIdaho, United States 26 US AQI0.3 times the WHO guideline
=1928BendOregon, United States 26 US AQI0.3 times the WHO guideline▲359
=1928SmithfieldUtah, United States 26 US AQI0.3 times the WHO guideline▲621
=1928KīheiHawaii, United States 26 US AQI0.3 times the WHO guideline▲274
=1928Drayton ValleyAlberta, Canada 26 US AQI0.3 times the WHO guideline▲215
=1928HopeBritish Columbia, Canada 26 US AQI0.3 times the WHO guideline▲133
=1928Williams LakeBritish Columbia, Canada 26 US AQI0.3 times the WHO guideline▲379
not rankedPenzaPenza Oblast, Russia 26 US AQI0.3 times the WHO guideline
not rankedHajdúböszörményHajdú-Bihar, Hungary 26 US AQI0.3 times the WHO guideline
not rankedBartoszyceWarmia-Masuria, Poland 26 US AQI0.3 times the WHO guideline
not rankedAlmeloOverijssel, The Netherlands 26 US AQI0.3 times the WHO guideline
not rankedPetersbergHesse, Germany 26 US AQI0.3 times the WHO guideline
not rankedRheineNorth Rhine-Westphalia, Germany 26 US AQI0.3 times the WHO guideline
not rankedNeubrückNorth Rhine-Westphalia, Germany 26 US AQI0.3 times the WHO guideline
not rankedHofBavaria, Germany 26 US AQI0.3 times the WHO guideline
not rankedGrevenNorth Rhine-Westphalia, Germany 26 US AQI0.3 times the WHO guideline
not rankedFürstenwaldeBrandenburg, Germany 26 US AQI0.3 times the WHO guideline
not rankedEschweilerNorth Rhine-Westphalia, Germany 26 US AQI0.3 times the WHO guideline
not rankedBassumLower Saxony, Germany 26 US AQI0.3 times the WHO guideline
not rankedSaint-AvoldGrand Est, France 26 US AQI0.3 times the WHO guideline
=1962Gorna OryahovitsaVeliko Tarnovo, Bulgaria 25 US AQI0.3 times the WHO guideline▲162
=1962SuwałkiPodlasie, Poland 25 US AQI0.3 times the WHO guideline▼956
=1962VelesVeles, North Macedonia 25 US AQI0.3 times the WHO guideline▲11
=1962AdelaideSouth Australia, Australia 25 US AQI0.3 times the WHO guideline▼180
=1962Milton KeynesEngland, United Kingdom 25 US AQI0.3 times the WHO guideline▲460
=1962LeicesterEngland, United Kingdom 25 US AQI0.3 times the WHO guideline▲188
=1962BirminghamEngland, United Kingdom 25 US AQI0.3 times the WHO guideline▲385
=1962ZevenaarGelderland, The Netherlands 25 US AQI0.3 times the WHO guideline
=1962VenrayLimburg, The Netherlands 25 US AQI0.3 times the WHO guideline▼556
=1962VeenendaalUtrecht, The Netherlands 25 US AQI0.3 times the WHO guideline
=1962NijverdalOverijssel, The Netherlands 25 US AQI0.3 times the WHO guideline▼623
=1962DelftSouth Holland, The Netherlands 25 US AQI0.3 times the WHO guideline
=1962ReutteTyrol, Austria 25 US AQI0.3 times the WHO guideline▲72
=1962SiegenNorth Rhine-Westphalia, Germany 25 US AQI0.3 times the WHO guideline
=1962PforzheimBaden-Wurttemberg, Germany 25 US AQI0.3 times the WHO guideline▼115
=1962BrackenheimBaden-Wurttemberg, Germany 25 US AQI0.3 times the WHO guideline
=1962AlbiOccitanie, France 25 US AQI0.3 times the WHO guideline▼110
=1962PezinokBratislava Region, Slovakia 25 US AQI0.3 times the WHO guideline▲282
=1962BergenVestland, Norway 25 US AQI0.3 times the WHO guideline▲679
=1962Fort SmithArkansas, United States 25 US AQI0.3 times the WHO guideline▼263
=1962PrienLouisiana, United States 25 US AQI0.3 times the WHO guideline▼137
=1962CambridgeMaryland, United States 25 US AQI0.3 times the WHO guideline▲662
=1962ColumbiaMissouri, United States 25 US AQI0.3 times the WHO guideline▲25
=1962BeltonTexas, United States 25 US AQI0.3 times the WHO guideline
=1962PasadenaTexas, United States 25 US AQI0.3 times the WHO guideline▼531
=1962North ChicopeeMassachusetts, United States 25 US AQI0.3 times the WHO guideline▲663
=1962FillmoreCalifornia, United States 25 US AQI0.3 times the WHO guideline▲294
=1962Ben LomondCalifornia, United States 25 US AQI0.3 times the WHO guideline▼512
=1962YrekaCalifornia, United States 25 US AQI0.3 times the WHO guideline▼69
=1962PendletonOregon, United States 25 US AQI0.3 times the WHO guideline▲376
=1962ToppenishWashington, United States 25 US AQI0.3 times the WHO guideline▲239
=1962KitimatBritish Columbia, Canada 25 US AQI0.3 times the WHO guideline▼668
not rankedJerusalemJerusalem, Israel 25 US AQI0.3 times the WHO guideline
not rankedLamiCentral, Fiji 25 US AQI0.3 times the WHO guideline
not rankedNuenenNorth Brabant, The Netherlands 25 US AQI0.3 times the WHO guideline
not rankedGoesZeeland, The Netherlands 25 US AQI0.3 times the WHO guideline
not rankedPüttlingenSaarland, Germany 25 US AQI0.3 times the WHO guideline
not rankedMeppenLower Saxony, Germany 25 US AQI0.3 times the WHO guideline
not rankedDingolfingBavaria, Germany 25 US AQI0.3 times the WHO guideline
not rankedCrailsheimBaden-Wurttemberg, Germany 25 US AQI0.3 times the WHO guideline
not rankedBrüggenNorth Rhine-Westphalia, Germany 25 US AQI0.3 times the WHO guideline
not rankedDudelangeEsch-sur-Alzette, Luxembourg 25 US AQI0.3 times the WHO guideline
not rankedGrosse Pointe WoodsMichigan, United States 25 US AQI0.3 times the WHO guideline
=1994ZheleznodorozhnyyMoscow Oblast, Russia 24 US AQI0.3 times the WHO guideline
=1994BardejovPrešov Region, Slovakia 24 US AQI0.3 times the WHO guideline▼366
=1994EłkWarmia-Masuria, Poland 24 US AQI0.3 times the WHO guideline▼734
=1994GeelongVictoria, Australia 24 US AQI0.3 times the WHO guideline▼20
=1994DerbyEngland, United Kingdom 24 US AQI0.3 times the WHO guideline▲134
=1994WageningenGelderland, The Netherlands 24 US AQI0.3 times the WHO guideline▼512
=1994SchijndelNorth Brabant, The Netherlands 24 US AQI0.3 times the WHO guideline
=1994HengeloOverijssel, The Netherlands 24 US AQI0.3 times the WHO guideline
=1994ZaventemFlanders, Belgium 24 US AQI0.3 times the WHO guideline▲41
=1994BastogneWallonia, Belgium 24 US AQI0.3 times the WHO guideline▲376
=1994SchwerinMecklenburg-Vorpommern, Germany 24 US AQI0.3 times the WHO guideline▼636
=1994Eggenstein-LeopoldshafenBaden-Wurttemberg, Germany 24 US AQI0.3 times the WHO guideline▲277
=1994Brandenburg an der HavelBrandenburg, Germany 24 US AQI0.3 times the WHO guideline▲17
=1994AchimLower Saxony, Germany 24 US AQI0.3 times the WHO guideline
=1994BeauvaisHauts-de-France, France 24 US AQI0.3 times the WHO guideline▼299
=1994Chorvátsky Grob - Čierna VodaBratislava Region, Slovakia 24 US AQI0.3 times the WHO guideline▲196
=1994MariborUrban Municipality of Maribor, Slovenia 24 US AQI0.3 times the WHO guideline▲145
=1994Fort-de-FranceMartinique, Martinique 24 US AQI0.3 times the WHO guideline
=1994EdinburgTexas, United States 24 US AQI0.3 times the WHO guideline▼344
=1994LafayetteIndiana, United States 24 US AQI0.3 times the WHO guideline▼1015
=1994WareMassachusetts, United States 24 US AQI0.3 times the WHO guideline▲614
=1994EugeneOregon, United States 24 US AQI0.3 times the WHO guideline▲204
=1994La GrandeOregon, United States 24 US AQI0.3 times the WHO guideline▼284

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).