All 3,291 cities by PM2.5, last 30 days

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.

=2356HobbsNew Mexico, United States 31 US AQI▼255
=2356Twin FallsIdaho, United States 31 US AQI▼209
=2356Cottage GroveOregon, United States 31 US AQI▼153
=2356BellinghamWashington, United States 31 US AQI▼252
=2356BremertonWashington, United States 31 US AQI▼207
=2356ShorelineWashington, United States 31 US AQI▼205
=2356TulalipWashington, United States 31 US AQI▼251
=2356BurnabyBritish Columbia, Canada 31 US AQI▼294
=2356CranbrookBritish Columbia, Canada 31 US AQI▼203
=2356GibsonsBritish Columbia, Canada 31 US AQI▼250
=2356LethbridgeAlberta, Canada 31 US AQI▼201
=2356SusonoShizuoka, Japan 31 US AQI▼115
=2356SadoNiigata, Japan 31 US AQI▼150
=2356Mango HillQueensland, Australia 31 US AQI▼114
=2356BarakiChiba, Japan 31 US AQI▼197
=2416ŌyauchiFukushima, Japan 31 US AQI▼206
=2416AjikiChiba, Japan 31 US AQI▼250
=2416AomoriAomori, Japan 31 US AQI▼861
=2416TorreviejaValencia, Spain 31 US AQI▼248
=2416EldaValencia, Spain 31 US AQI▼289
=2416PlymouthEngland, United Kingdom 31 US AQI
=2416DoncasterEngland, United Kingdom 31 US AQI
=2416WormerNorth Holland, The Netherlands 31 US AQI▼246
=2416HoensbroekLimburg, The Netherlands 31 US AQI▼288
=2416BastogneWallonia, Belgium 31 US AQI▼160
=2416WieslochBaden-Wurttemberg, Germany 31 US AQI▼159
=2416Göttingenlast full day 10 OctLower Saxony, Germany 31 US AQI▼335
=2416Bad BelzigBrandenburg, Germany 31 US AQI▼334
=2416VerdunGrand Est, France 31 US AQI
=2416Saint-DizierGrand Est, France 31 US AQI▼281
=2416DijonBourgogne-Franche-Comté, France 31 US AQI
=2416Miranda de EbroCastille and León, Spain 31 US AQI
=2416McCordsvilleIndiana, United States 31 US AQI▼149
=2416RaymoreMissouri, United States 31 US AQI▼233
=2416LebanonOhio, United States 31 US AQI▼194
=2416HarrisonburgVirginia, United States 31 US AQI▼193
=2416PoquosonVirginia, United States 31 US AQI▼231
=2416Moundsvillelast full day 10 OctWest Virginia, United States 31 US AQI▼230
=2416BraidwoodIllinois, United States 31 US AQI▼146
=2416RedfordMichigan, United States 31 US AQI▼187
=2416Jersey CityNew Jersey, United States 31 US AQI▼186
=2416DublinOhio, United States 31 US AQI▼185
=2416BensalemPennsylvania, United States 31 US AQI▼184
=2416Sioux FallsSouth Dakota, United States 31 US AQI▼182
=2416OconomowocWisconsin, United States 31 US AQI▼93
=2416NogalesArizona, United States 31 US AQI▼219
=2416PaysonArizona, United States 31 US AQI▼134
=2416North AuburnCalifornia, United States 31 US AQI▼179
=2416ThorntonColorado, United States 31 US AQI▼217
=2416Red BluffCalifornia, United States 31 US AQI▼314
=2416RichmondBritish Columbia, Canada 31 US AQI▼260
=2416Sorel-TracyQuebec, Canada 31 US AQI▼308
=2416VictoriaBritish Columbia, Canada 31 US AQI▼307
=2416YonoOsaka, Japan 31 US AQI▼120
=2416TakizawaIwate, Japan 31 US AQI▼209
=2416LiberpolisCounty of Osijek-Baranja, Croatia 31 US AQI
=2457TakayamaGifu, Japan 30 US AQI▼122
=2457Kameda-honchōNiigata, Japan 30 US AQI▼158
=2457YachimataChiba, Japan 30 US AQI▼209
=2457MiyakoIwate, Japan 30 US AQI▼206
=2457KōzakiChiba, Japan 30 US AQI▼292
=2457KawasakiMiyagi, Japan 30 US AQI▼246
=2457IshiokaIbaraki, Japan 30 US AQI▼245
=2457LourinhãLisbon, Portugal 30 US AQI
=2457Stoke-on-TrentEngland, United Kingdom 30 US AQI
=2457Southend-on-SeaEngland, United Kingdom 30 US AQI
=2457PrestonEngland, United Kingdom 30 US AQI
=2457Newcastle upon TyneEngland, United Kingdom 30 US AQI
=2457LutonEngland, United Kingdom 30 US AQI
=2457HorleyEngland, United Kingdom 30 US AQI
=2457DewsburyEngland, United Kingdom 30 US AQI
=2457RixensartWallonia, Belgium 30 US AQI▼286
=2457Klötzelast full day 10 OctSaxony-Anhalt, Germany 30 US AQI▼152
=2457Kahlalast full day 10 OctThuringia, Germany 30 US AQI
=2457OlivetCentre-Val de Loire, France 30 US AQI
=2457LormontNew Aquitaine, France 30 US AQI▼194
=2457L'Isle-d'AbeauAuvergne-Rhône-Alpes, France 30 US AQI▼240
=2457La Roche-sur-YonPays de la Loire, France 30 US AQI
=2457Joué-lès-ToursCentre-Val de Loire, France 30 US AQI▼239
=2457Beaumont-sur-OiseÎle-de-France, France 30 US AQI▼238
=2457AuxerreBourgogne-Franche-Comté, France 30 US AQI▼416
=2457KourouGuyane, French Guiana 30 US AQI▼278
=2457MarigotSaint Martin 30 US AQI▼277
=2457McDonoughGeorgia, United States 30 US AQI▼191
=2457HarrimanTennessee, United States 30 US AQI▼188
=2457AnkenyIowa, United States 30 US AQI▼233
=2457SavoyIllinois, United States 30 US AQI▼230
=2457LafayetteIndiana, United States 30 US AQI▼229
=2457TaylorMichigan, United States 30 US AQI▼186
=2457YpsilantiMichigan, United States 30 US AQI▼185
=2457MankatoMinnesota, United States 30 US AQI▼264
=2457BeatriceNebraska, United States 30 US AQI▼183
=2457NewarkNew Jersey, United States 30 US AQI▼139
=2457MedinaOhio, United States 30 US AQI▼181
=2457Beaver FallsPennsylvania, United States 30 US AQI▼138
=2457HersheyPennsylvania, United States 30 US AQI▼178
=2457Natrona HeightsPennsylvania, United States 30 US AQI▼137
=2457WilkinsburgPennsylvania, United States 30 US AQI▼177
=2457PawtucketRhode Island, United States 30 US AQI▼176
=2457AltoonaWisconsin, United States 30 US AQI▼222

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), last 30 days to 14 Oct 2026, 06:00 UTC: each city's mean of its daily means, cities measured on 21 or more of the 30 days. Monitor data from national networks via OpenAQ and the publishers listed at smogrank.com/sources. smogrank.com/rankings?w=30d. Ranked on low-cost sensors, with no reference monitor in the city: #1 Kasur, #2 Gujranwala, #3 Kuala Lumpur, #5 Lahore, #6 Faisalabad, #9 Peshawar and #10 Dhaka. Some values from Sensor.Community, ODbL. Some readings from Vietnam's government monitors; Aurassure; Department of Environment, Nepal; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver); 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: Vietnam's government monitors; Aurassure; Department of Environment, Nepal; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver); Umhverfisstofnun (Environment Agency of Iceland), no reuse terms published (why we use them).