All 3,198 cities by PM2.5, this year

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 show older figures or are missing from this board, not clean.

=2688GroßalmerodeHesse, Germany 36 US AQI1.3 times the WHO guideline▼410
=2688GalwayConnacht, Ireland 36 US AQI1.3 times the WHO guideline
=2688VichyAuvergne-Rhône-Alpes, France 36 US AQI1.3 times the WHO guideline▼339
=2688RodezOccitanie, France 36 US AQI1.3 times the WHO guideline▼338
=2688RevinGrand Est, France 36 US AQI1.3 times the WHO guideline▼376
=2688NiortNew Aquitaine, France 36 US AQI1.3 times the WHO guideline▼288
=2688ÉtampesÎle-de-France, France 36 US AQI1.3 times the WHO guideline▼373
=2688BarBar, Montenegro 36 US AQI1.3 times the WHO guideline▼309
=2688OrlandoFlorida, United States 36 US AQI1.3 times the WHO guideline▼308
=2688HazardKentucky, United States 36 US AQI1.3 times the WHO guideline▼307
=2688OmahaNebraska, United States 36 US AQI1.3 times the WHO guideline▼330
=2688FillmoreCalifornia, United States 36 US AQI1.3 times the WHO guideline▼305
=2688TucsonArizona, United States 36 US AQI1.3 times the WHO guideline▼303
=2688HuronCalifornia, United States 36 US AQI1.3 times the WHO guideline▼302
=2688BendOregon, United States 36 US AQI1.3 times the WHO guideline▼324
=2688Cottage GroveOregon, United States 36 US AQI1.3 times the WHO guideline▼301
=2688BountifulUtah, United States 36 US AQI1.3 times the WHO guideline▼300
=2688AuburnWashington, United States 36 US AQI1.3 times the WHO guideline▼299
=2688BellevilleOntario, Canada 36 US AQI1.3 times the WHO guideline▼298
=2688CornwallOntario, Canada 36 US AQI1.3 times the WHO guideline▼297
=2688Prince GeorgeBritish Columbia, Canada 36 US AQI1.3 times the WHO guideline▼296
=2688Trois-RivièresQuebec, Canada 36 US AQI1.3 times the WHO guideline▼318
=2688Oxon Hill-GlassmanorMaryland, United States 36 US AQI1.3 times the WHO guideline▼317
=2688TakizawaIwate, Japan 36 US AQI1.3 times the WHO guideline▼295
=2725VantaaUusimaa, Finland 36 US AQI1.3 times the WHO guideline▼331
=2725OkayaNagano, Japan 36 US AQI1.3 times the WHO guideline▼329
=2725ŌgakiGifu, Japan 36 US AQI1.3 times the WHO guideline▼328
=2725TōganeChiba, Japan 36 US AQI1.3 times the WHO guideline▼327
=2725MelbourneVictoria, Australia 36 US AQI1.3 times the WHO guideline▼326
=2725Ayrlast full day 5 OctQueensland, Australia 36 US AQI1.3 times the WHO guideline▼282
=2725BuñolValencia, Spain 36 US AQI1.3 times the WHO guideline
=2725SligoConnacht, Ireland 36 US AQI1.3 times the WHO guideline
=2725Dún LaoghaireLeinster, Ireland 36 US AQI1.3 times the WHO guideline
=2725BallinasloeConnacht, Ireland 36 US AQI1.3 times the WHO guideline
=2725MontluçonAuvergne-Rhône-Alpes, France 36 US AQI1.3 times the WHO guideline▼324
=2725ColmarGrand Est, France 36 US AQI1.3 times the WHO guideline
=2725Clermont-FerrandAuvergne-Rhône-Alpes, France 36 US AQI1.3 times the WHO guideline▼347
=2725OviedoAsturias, Spain 36 US AQI1.3 times the WHO guideline
=2725CarralGalicia, Spain 36 US AQI1.3 times the WHO guideline
=2725KearneyMissouri, United States 36 US AQI1.3 times the WHO guideline▼323
=2725HarrimanTennessee, United States 36 US AQI1.3 times the WHO guideline▼322
=2725KingsportTennessee, United States 36 US AQI1.3 times the WHO guideline▼343
=2725BeatriceNebraska, United States 36 US AQI1.3 times the WHO guideline▼321
=2725ColusaCalifornia, United States 36 US AQI1.3 times the WHO guideline▼319
=2725TemeculaCalifornia, United States 36 US AQI1.3 times the WHO guideline▼318
=2725LewistownMontana, United States 36 US AQI1.3 times the WHO guideline▼316
=2725GranbyQuebec, Canada 36 US AQI1.3 times the WHO guideline▼315
=2725Grande PrairieAlberta, Canada 36 US AQI1.3 times the WHO guideline▼314
=2725Four CornersFlorida, United States 36 US AQI1.3 times the WHO guideline▼313
=2725Helena Valley West CentralMontana, United States 36 US AQI1.3 times the WHO guideline▼312
=2725TomeMiyagi, Japan 36 US AQI1.3 times the WHO guideline▼311
=2752KogaIbaraki, Japan 35 US AQI1.3 times the WHO guideline▼337
=2752KujiIwate, Japan 35 US AQI1.3 times the WHO guideline▼336
=2752GunnedahNew South Wales, Australia 35 US AQI1.3 times the WHO guideline▼333
=2752New LambtonNew South Wales, Australia 35 US AQI1.3 times the WHO guideline▼332
=2752DunholmeEngland, United Kingdom 35 US AQI1.3 times the WHO guideline
=2752CreweEngland, United Kingdom 35 US AQI1.3 times the WHO guideline
=2752CoventryEngland, United Kingdom 35 US AQI1.3 times the WHO guideline
=2752CannockEngland, United Kingdom 35 US AQI1.3 times the WHO guideline
=2752BlackburnEngland, United Kingdom 35 US AQI1.3 times the WHO guideline
=2752Ashton-under-Lynelast full day 11 OctEngland, United Kingdom 35 US AQI1.3 times the WHO guideline
=2752LeixlipLeinster, Ireland 35 US AQI1.3 times the WHO guideline▼330
=2752DroghedaLeinster, Ireland 35 US AQI1.3 times the WHO guideline▼375
=2752TroyesGrand Est, France 35 US AQI1.3 times the WHO guideline
=2752Bellegarde-sur-ValserineAuvergne-Rhône-Alpes, France 35 US AQI1.3 times the WHO guideline▼329
=2752NesttunVestland, Norway 35 US AQI1.3 times the WHO guideline
=2752DavieFlorida, United States 35 US AQI1.3 times the WHO guideline▼328
=2752Fort MyersFlorida, United States 35 US AQI1.3 times the WHO guideline▼327
=2752New LondonConnecticut, United States 35 US AQI1.3 times the WHO guideline▼326
=2752BostonMassachusetts, United States 35 US AQI1.3 times the WHO guideline▼325
=2752GreenfieldMassachusetts, United States 35 US AQI1.3 times the WHO guideline▼324
=2752Show LowArizona, United States 35 US AQI1.3 times the WHO guideline▼347
=2752TempeArizona, United States 35 US AQI1.3 times the WHO guideline▼368
=2752OrcuttCalifornia, United States 35 US AQI1.3 times the WHO guideline▼321
=2752AmarilloTexas, United States 35 US AQI1.3 times the WHO guideline▼320
=2752LongmontColorado, United States 35 US AQI1.3 times the WHO guideline▼319
=2752MoscowIdaho, United States 35 US AQI1.3 times the WHO guideline▼344
=2752Spanish ForkUtah, United States 35 US AQI1.3 times the WHO guideline▼317
=2752RentonWashington, United States 35 US AQI1.3 times the WHO guideline▼316
=2752DrummondvilleQuebec, Canada 35 US AQI1.3 times the WHO guideline▼315
=2752EdsonAlberta, Canada 35 US AQI1.3 times the WHO guideline▼314
=2752KingstonOntario, Canada 35 US AQI1.3 times the WHO guideline▼313
=2752KuriharaMiyagi, Japan 35 US AQI1.3 times the WHO guideline▼312
=2752MizunashiFukushima, Japan 35 US AQI1.3 times the WHO guideline▼311
=2752Rivière-des-Prairies–Pointe-aux-TremblesQuebec, Canada 35 US AQI1.3 times the WHO guideline▼310
=2786OrangeNew South Wales, Australia 34 US AQI1.2 times the WHO guideline▼369
=2786Grao de MurviedroValencia, Spain 34 US AQI1.2 times the WHO guideline
=2786WorcesterEngland, United Kingdom 34 US AQI1.2 times the WHO guideline
=2786Royal Leamington SpaEngland, United Kingdom 34 US AQI1.2 times the WHO guideline
=2786AylesburyEngland, United Kingdom 34 US AQI1.2 times the WHO guideline
=2786Neuhaus am Rennweglast full day 10 OctThuringia, Germany 34 US AQI1.2 times the WHO guideline▼365
=2786Carlowlast full day 9 OctLeinster, Ireland 34 US AQI1.2 times the WHO guideline▼341
=2786BlanchardstownLeinster, Ireland 34 US AQI1.2 times the WHO guideline
=2786FontainebleauÎle-de-France, France 34 US AQI1.2 times the WHO guideline▼472
=2786Coconut CreekFlorida, United States 34 US AQI1.2 times the WHO guideline▼340
=2786Safety HarborFlorida, United States 34 US AQI1.2 times the WHO guideline▼339
=2786McDonoughGeorgia, United States 34 US AQI1.2 times the WHO guideline▼338
=2786PikevilleKentucky, United States 34 US AQI1.2 times the WHO guideline▼337
=2786RaymoreMissouri, United States 34 US AQI1.2 times the WHO guideline▼336
=2786GlendaleArizona, United States 34 US AQI1.2 times the WHO guideline▼357

What stands behind each figure: Checked at 2+ sites One reference monitor Low-cost sensors About these marks

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), this year to 14 Oct 2026, 06:00 UTC: each city's mean of its daily means, cities measured on 70% or more of the days since 1 January (at least 14). Monitor data from national networks via OpenAQ and the publishers listed at smogrank.com/sources. smogrank.com/rankings?w=year. Ranked on low-cost sensors, with no reference monitor in the city: #2 Faisalabad, #3 Gujranwala and #6 Lahore. Some values from Sensor.Community, ODbL. Some readings from Department of Environment, Nepal; Vietnam's government monitors; Aurassure; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Umhverfisstofnun (Environment Agency of Iceland), no reuse terms published.

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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 06:07 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: Department of Environment, Nepal; Vietnam's government monitors; Aurassure; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Umhverfisstofnun (Environment Agency of Iceland), no reuse terms published (why we use them).