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.

=2661KōkaShiga, Japan 28 US AQI▼170
=2661Fort BlissTexas, United States 28 US AQI▼294
=2703OkayaNagano, Japan 27 US AQI▼173
=2703ŌgakiGifu, Japan 27 US AQI▼245
=2703MakiNiigata, Japan 27 US AQI▼283
=2703KogaIbaraki, Japan 27 US AQI▼243
=2703ImaichiTochigi, Japan 27 US AQI▼282
=2703CairnsQueensland, Australia 27 US AQI▼242
=2703StreetEngland, United Kingdom 27 US AQI
=2703ImminghamEngland, United Kingdom 27 US AQI
=2703GlasgowScotland, United Kingdom 27 US AQI
=2703FarnboroughEngland, United Kingdom 27 US AQI
=2703BlackburnEngland, United Kingdom 27 US AQI
=2703BirminghamEngland, United Kingdom 27 US AQI▼167
=2703MonsWallonia, Belgium 27 US AQI▼327
=2703Neuhaus am Rennweglast full day 10 OctThuringia, Germany 27 US AQI▼326
=2703Duderstadtlast full day 10 OctLower Saxony, Germany 27 US AQI▼365
=2703NavanLeinster, Ireland 27 US AQI▼280
=2703LongfordLeinster, Ireland 27 US AQI▼324
=2703DundalkLeinster, Ireland 27 US AQI▼323
=2703DroghedaLeinster, Ireland 27 US AQI▼322
=2703VichyAuvergne-Rhône-Alpes, France 27 US AQI▼236
=2703ToursCentre-Val de Loire, France 27 US AQI▼397
=2703ÉpinalGrand Est, France 27 US AQI▼235
=2703ChâteaurouxCentre-Val de Loire, France 27 US AQI▼276
=2703BastiaCorsica, France 27 US AQI▼275
=2703les EscaldesEscaldes-Engordany, Andorra 27 US AQI▼274
=2703SoriaCastille and León, Spain 27 US AQI
=2703Delray BeachFlorida, United States 27 US AQI▼273
=2703Oak RidgeFlorida, United States 27 US AQI▼233
=2703BrandermillVirginia, United States 27 US AQI▼271
=2703RoanokeVirginia, United States 27 US AQI▼231
=2703SpringfieldVirginia, United States 27 US AQI▼229
=2703Des MoinesIowa, United States 27 US AQI▼269
=2703Presque IsleMaine, United States 27 US AQI▼267
=2703Apple ValleyMinnesota, United States 27 US AQI▼310
=2703TrentonNew Jersey, United States 27 US AQI▼227
=2703MonessenPennsylvania, United States 27 US AQI▼225
=2703TempeArizona, United States 27 US AQI▼303
=2703TucsonArizona, United States 27 US AQI▼302
=2703IndioCalifornia, United States 27 US AQI▼300
=2703LancasterCalifornia, United States 27 US AQI▼299
=2703AshlandOregon, United States 27 US AQI▼259
=2703MedfordOregon, United States 27 US AQI▼257
=2703HerrimanUtah, United States 27 US AQI▼292
=2703LaceyWashington, United States 27 US AQI▼254
=2703Port AngelesWashington, United States 27 US AQI▼220
=2703PullmanWashington, United States 27 US AQI▼341
=2703Central Saanichlast full day 9 OctBritish Columbia, Canada 27 US AQI▼182
=2703EdsonAlberta, Canada 27 US AQI▼289
=2703HamiltonOntario, Canada 27 US AQI▼218
=2703NanaimoBritish Columbia, Canada 27 US AQI▼253
=2703Saint-Jean-sur-RichelieuQuebec, Canada 27 US AQI▼252
=2703St. AlbertAlberta, Canada 27 US AQI▼287
=2703TorontoOntario, Canada 27 US AQI▼214
=2703MinamiashigaraKanagawa, Japan 27 US AQI▼177
=2703Four CornersFlorida, United States 27 US AQI▼249
=2703TomeMiyagi, Japan 27 US AQI▼211
=2759ŌtsukiYamanashi, Japan 27 US AQI▼341
=2759AnamizuIshikawa, Japan 27 US AQI▼265
=2759WakuyaMiyagi, Japan 27 US AQI▼227
=2759HitachiIbaraki, Japan 27 US AQI▼264
=2759TomakomaiHokkaido, Japan 27 US AQI▼226
=2759YorkEngland, United Kingdom 27 US AQI
=2759MansfieldEngland, United Kingdom 27 US AQI
=2759HartlepoolEngland, United Kingdom 27 US AQI
=2759GreenockScotland, United Kingdom 27 US AQI
=2759TournaiWallonia, Belgium 27 US AQI▼297
=2759Kirchzartenlast full day 9 OctBaden-Wurttemberg, Germany 27 US AQI
=2759Höhr-Grenzhausenlast full day 10 OctRheinland-Pfalz, Germany 27 US AQI▼381
=2759HerrenbergBaden-Wurttemberg, Germany 27 US AQI
=2759DublinLeinster, Ireland 27 US AQI▼334
=2759RoussillonAuvergne-Rhône-Alpes, France 27 US AQI
=2759La Ferté-MacéNormandy, France 27 US AQI▼182
=2759Baume-les-DamesBourgogne-Franche-Comté, France 27 US AQI
=2759AngersPays de la Loire, France 27 US AQI
=2759OrlandoFlorida, United States 27 US AQI▼252
=2759TampaFlorida, United States 27 US AQI▼251
=2759Short PumpVirginia, United States 27 US AQI▼286
=2759New BaltimoreMichigan, United States 27 US AQI▼250
=2759SouthfieldMichigan, United States 27 US AQI▼249
=2759New York Citylast full day 11 OctNew York, United States 27 US AQI▼248
=2759BridgevillePennsylvania, United States 27 US AQI▼282
=2759HollisterCalifornia, United States 27 US AQI▼318
=2759ScottsbluffNebraska, United States 27 US AQI▼316
=2759AlbanyOregon, United States 27 US AQI▼278
=2759HermistonOregon, United States 27 US AQI▼314
=2759RooseveltUtah, United States 27 US AQI▼311
=2759Union GapWashington, United States 27 US AQI▼396
=2759BarrieOntario, Canada 27 US AQI▼196
=2759KitchenerOntario, Canada 27 US AQI▼273
=2759Medicine HatAlberta, Canada 27 US AQI▼272
=2759BathurstNew Brunswick, Canada 27 US AQI▼269
=2794HaskovoHaskovo, Bulgaria 26 US AQI▼338
=2794Matsuelast full day 11 OctShimane, Japan 26 US AQI▼335
=2794HakodateHokkaido, Japan 26 US AQI▼260
=2794Grao de MurviedroValencia, Spain 26 US AQI▼372
=2794HalesworthEngland, United Kingdom 26 US AQI
=2794SurseeLucerne, Switzerland 26 US AQI
=2794Roetgenlast full day 10 OctNorth Rhine-Westphalia, Germany 26 US AQI

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).