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.

=2290AarschotFlanders, Belgium 42 US AQI1.5 times the WHO guideline▼236
=2290Villingen-SchwenningenBaden-Wurttemberg, Germany 42 US AQI1.5 times the WHO guideline▼199
=2290Suhllast full day 10 OctThuringia, Germany 42 US AQI1.5 times the WHO guideline▼272
=2290GärtringenBaden-Wurttemberg, Germany 42 US AQI1.5 times the WHO guideline▼271
=2290BirrLeinster, Ireland 42 US AQI1.5 times the WHO guideline
=2290VesoulBourgogne-Franche-Comté, France 42 US AQI1.5 times the WHO guideline
=2290VannesBrittany, France 42 US AQI1.5 times the WHO guideline▼234
=2290La Roche-sur-YonPays de la Loire, France 42 US AQI1.5 times the WHO guideline
=2290ÉpinalGrand Est, France 42 US AQI1.5 times the WHO guideline▼230
=2290DongesPays de la Loire, France 42 US AQI1.5 times the WHO guideline
=2290DoleBourgogne-Franche-Comté, France 42 US AQI1.5 times the WHO guideline▼270
=2290BrestBrittany, France 42 US AQI1.5 times the WHO guideline▼367
=2290AlbertvilleAuvergne-Rhône-Alpes, France 42 US AQI1.5 times the WHO guideline▼226
=2290GyöngyösHeves County, Hungary 42 US AQI1.5 times the WHO guideline▼225
=2290BrunswickGeorgia, United States 42 US AQI1.5 times the WHO guideline▼267
=2290Oak GroveKentucky, United States 42 US AQI1.5 times the WHO guideline▼224
=2290ChalmetteLouisiana, United States 42 US AQI1.5 times the WHO guideline▼223
=2290KennerLouisiana, United States 42 US AQI1.5 times the WHO guideline▼222
=2290ColumbiaTennessee, United States 42 US AQI1.5 times the WHO guideline▼221
=2290RichmondVirginia, United States 42 US AQI1.5 times the WHO guideline▼220
=2290DavenportIowa, United States 42 US AQI1.5 times the WHO guideline▼218
=2290RochesterMinnesota, United States 42 US AQI1.5 times the WHO guideline▼216
=2290ShakopeeMinnesota, United States 42 US AQI1.5 times the WHO guideline▼215
=2290Albanylast full day 11 OctNew York, United States 42 US AQI1.5 times the WHO guideline▼214
=2290MiddletonWisconsin, United States 42 US AQI1.5 times the WHO guideline
=2290EphrataWashington, United States 42 US AQI1.5 times the WHO guideline▼303
=2290BarrieOntario, Canada 42 US AQI1.5 times the WHO guideline▼209
=2290BramptonOntario, Canada 42 US AQI1.5 times the WHO guideline▼208
=2290MinamiuonumaNiigata, Japan 42 US AQI1.5 times the WHO guideline▼207
=2290HigashimurayamaTokyo, Japan 42 US AQI1.5 times the WHO guideline▼206
=2290ShirakawaFukushima, Japan 42 US AQI1.5 times the WHO guideline▼205
=2332YokosukaKanagawa, Japan 41 US AQI1.5 times the WHO guideline▼246
=2332SuwaNagano, Japan 41 US AQI1.5 times the WHO guideline▼219
=2332ShimodaShizuoka, Japan 41 US AQI1.5 times the WHO guideline▼245
=2332SaikuboGunma, Japan 41 US AQI1.5 times the WHO guideline▼218
=2332AsahikawaHokkaido, Japan 41 US AQI1.5 times the WHO guideline▼243
=2332Storringtonlast full day 11 OctEngland, United Kingdom 41 US AQI1.5 times the WHO guideline▼242
=2332Southend-on-SeaEngland, United Kingdom 41 US AQI1.5 times the WHO guideline
=2332HayesEngland, United Kingdom 41 US AQI1.5 times the WHO guideline
=2332BrightlingseaEngland, United Kingdom 41 US AQI1.5 times the WHO guideline
=2332BlackpoolEngland, United Kingdom 41 US AQI1.5 times the WHO guideline
=2332Tarplast full day 10 OctSchleswig-Holstein, Germany 41 US AQI1.5 times the WHO guideline▼315
=2332LetterkennyUlster, Ireland 41 US AQI1.5 times the WHO guideline
=2332VillefontaineAuvergne-Rhône-Alpes, France 41 US AQI1.5 times the WHO guideline
=2332Salon-de-ProvenceProvence-Alpes-Côte d'Azur, France 41 US AQI1.5 times the WHO guideline▼275
=2332LorientBrittany, France 41 US AQI1.5 times the WHO guideline▼239
=2332L'Isle-d'AbeauAuvergne-Rhône-Alpes, France 41 US AQI1.5 times the WHO guideline▼238
=2332DreuxCentre-Val de Loire, France 41 US AQI1.5 times the WHO guideline▼271
=2332Bourg-en-BresseAuvergne-Rhône-Alpes, France 41 US AQI1.5 times the WHO guideline▼270
=2332ZierbenaBasque Country, Spain 41 US AQI1.5 times the WHO guideline
=2332Sarpsborglast full day 10 OctØstfold, Norway 41 US AQI1.5 times the WHO guideline
=2332AshevilleNorth Carolina, United States 41 US AQI1.5 times the WHO guideline▼234
=2332Roanoke RapidsNorth Carolina, United States 41 US AQI1.5 times the WHO guideline▼233
=2332TarboroNorth Carolina, United States 41 US AQI1.5 times the WHO guideline▼232
=2332SharonvilleOhio, United States 41 US AQI1.5 times the WHO guideline▼231
=2332BrandermillVirginia, United States 41 US AQI1.5 times the WHO guideline▼230
=2332Short PumpVirginia, United States 41 US AQI1.5 times the WHO guideline▼261
=2332Des MoinesIowa, United States 41 US AQI1.5 times the WHO guideline▼259
=2332Holbrooklast full day 11 OctNew York, United States 41 US AQI1.5 times the WHO guideline▼229
=2332BridgeportConnecticut, United States 41 US AQI1.5 times the WHO guideline▼228
=2332San FranciscoCalifornia, United States 41 US AQI1.5 times the WHO guideline▼227
=2332San LeandroCalifornia, United States 41 US AQI1.5 times the WHO guideline▼195
=2332Simi ValleyCalifornia, United States 41 US AQI1.5 times the WHO guideline▼255
=2332DeltaColorado, United States 41 US AQI1.5 times the WHO guideline▼226
=2332Twin FallsIdaho, United States 41 US AQI1.5 times the WHO guideline▼254
=2332AltamontOregon, United States 41 US AQI1.5 times the WHO guideline▼225
=2332West Valley CityUtah, United States 41 US AQI1.5 times the WHO guideline▼253
=2332QuincyWashington, United States 41 US AQI1.5 times the WHO guideline▼252
=2332AirdrieAlberta, Canada 41 US AQI1.5 times the WHO guideline▼224
=2332MississaugaOntario, Canada 41 US AQI1.5 times the WHO guideline▼223
=2332Arden-ArcadeCalifornia, United States 41 US AQI1.5 times the WHO guideline▼222
=2332FujiyoshidaYamanashi, Japan 41 US AQI1.5 times the WHO guideline▼221
=2373SanzhiTaipei, Taiwan 41 US AQI1.5 times the WHO guideline▼229
=2373GuanshanTaiwan, Taiwan 41 US AQI1.5 times the WHO guideline▼261
=2373OnoFukui, Japan 41 US AQI1.5 times the WHO guideline▼258
=2373MatsumotoNagano, Japan 41 US AQI1.5 times the WHO guideline▼257
=2373MatsudoChiba, Japan 41 US AQI1.5 times the WHO guideline▼256
=2373IbiGifu, Japan 41 US AQI1.5 times the WHO guideline▼285
=2373KumaEhime, Japan 41 US AQI1.5 times the WHO guideline▼255
=2373ŌyauchiFukushima, Japan 41 US AQI1.5 times the WHO guideline▼254
=2373MaitlandNew South Wales, Australia 41 US AQI1.5 times the WHO guideline▼253
=2373Thornaby-on-TeesEngland, United Kingdom 41 US AQI1.5 times the WHO guideline
=2373NorwichEngland, United Kingdom 41 US AQI1.5 times the WHO guideline
=2373HorleyEngland, United Kingdom 41 US AQI1.5 times the WHO guideline
=2373Malmölast full day 11 OctSkåne, Sweden 41 US AQI1.5 times the WHO guideline
=2373Uslarlast full day 10 OctLower Saxony, Germany 41 US AQI1.5 times the WHO guideline▼357
=2373PauNew Aquitaine, France 41 US AQI1.5 times the WHO guideline▼251
=2373ÉvreuxNormandy, France 41 US AQI1.5 times the WHO guideline▼278
=2373les EscaldesEscaldes-Engordany, Andorra 41 US AQI1.5 times the WHO guideline▼352
=2373AvilésAsturias, Spain 41 US AQI1.5 times the WHO guideline
=2373AthloneLeinster, Ireland 41 US AQI1.5 times the WHO guideline▼277
=2373GlasgowDelaware, United States 41 US AQI1.5 times the WHO guideline▼249
=2373Fort LauderdaleFlorida, United States 41 US AQI1.5 times the WHO guideline▼248
=2373JacksonvilleFlorida, United States 41 US AQI1.5 times the WHO guideline▼247
=2373JerseyvilleIllinois, United States 41 US AQI1.5 times the WHO guideline▼276
=2373ElizabethtownKentucky, United States 41 US AQI1.5 times the WHO guideline▼209
=2373ScaggsvilleMaryland, United States 41 US AQI1.5 times the WHO guideline▼246
=2373PascagoulaMississippi, United States 41 US AQI1.5 times the WHO guideline▼245
=2373HartfordConnecticut, United States 41 US AQI1.5 times the WHO guideline▼243
=2373LafayetteIndiana, United States 41 US AQI1.5 times the WHO guideline▼242

What stands behind each figure: Checked at 2+ sites One reference monitor Low-cost sensors 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), 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.

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 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).