All 2,895 cities by PM2.5, last 7 days

Every city with enough measurements in this window, worst first.

CPCB in India: no readings since 12 Oct (488 monitors). EEA in Spain: no readings since 13 Oct (310 monitors). Their cities show older figures or are missing from this board, not clean.

Show 303 cities with only 1–2 sensors

=1798WorthingEngland, United Kingdom 33 US AQI▲68
=1798SchiedamSouth Holland, The Netherlands 33 US AQI▼387
=1798MedemblikNorth Holland, The Netherlands 33 US AQI▼19
=1798SteyrUpper Austria, Austria 33 US AQI▼251
=1798JenbachTyrol, Austria 33 US AQI▲70
=1798ErtveldeFlanders, Belgium 33 US AQI▼487
=1798BremenBremen, Germany 33 US AQI▼385
=1798LuxembourgLuxembourg, Luxembourg 33 US AQI▼70
=1798WexfordLeinster, Ireland 33 US AQI▲334
=1798PilsenPlzeň Region, Czechia 33 US AQI▲143
=1798Guanajuatolast full day 11 OctGuanajuato, Mexico 33 US AQI▲222
=1798ElizabethtownKentucky, United States 33 US AQI▲374
=1798YpsilantiMichigan, United States 33 US AQI▲268
=1798SteubenvilleOhio, United States 33 US AQI▲230
=1798YoungstownOhio, United States 33 US AQI▲231
=1798VermillionSouth Dakota, United States 33 US AQI▲85
=1798PhoenixArizona, United States 33 US AQI▼62
=1798CarpinteriaCalifornia, United States 33 US AQI▲1
=1798Crescent CityCalifornia, United States 33 US AQI▲311
=1798Columbia CityWashington, United States 33 US AQI
=1798CalgaryAlberta, Canada 33 US AQI▼29
=1798ChilliwackBritish Columbia, Canada 33 US AQI▼28
=1798NasushiobaraTochigi, Japan 33 US AQI
=1824RēzekneRēzekne, Latvia 33 US AQI▲102
=1824EmeraldQueensland, Australia 33 US AQI▲69
=1824CampbelltownNew South Wales, Australia 33 US AQI▲104
=1824SpijkenisseSouth Holland, The Netherlands 33 US AQI▼387
=1824NijmegenGelderland, The Netherlands 33 US AQI▼552
=1824LopikUtrecht, The Netherlands 33 US AQI▼444
=1824HaarlemNorth Holland, The Netherlands 33 US AQI
=1824Wiener NeustadtLower Austria, Austria 33 US AQI▼515
=1824SchwazTyrol, Austria 33 US AQI▲43
=1824SchwerinMecklenburg-Vorpommern, Germany 33 US AQI▼617
=1824Brandenburg an der HavelBrandenburg, Germany 33 US AQI▼187
=1824RouenNormandy, France 33 US AQI▲21
=1824Heroica MatamorosTamaulipas, Mexico 33 US AQI▼64
=1824San Miguel de Allendelast full day 11 OctGuanajuato, Mexico 33 US AQI▲273
=1824OrlandoFlorida, United States 33 US AQI▲274
=1824University CityMissouri, United States 33 US AQI▼31
=1824LafayetteIndiana, United States 33 US AQI▲93
=1824Bay CityMichigan, United States 33 US AQI▲167
=1824Detroit LakesMinnesota, United States 33 US AQI▼206
=1824BlairNebraska, United States 33 US AQI▲126
=1824LebanonPennsylvania, United States 33 US AQI▲398
=1824SuperiorWisconsin, United States 33 US AQI▼110
=1824TomahWisconsin, United States 33 US AQI▲60
=1824AtascaderoCalifornia, United States 33 US AQI▲172
=1824Palo AltoCalifornia, United States 33 US AQI▲283
=1824South San FranciscoCalifornia, United States 33 US AQI▼59
=1824AgassizBritish Columbia, Canada 33 US AQI▼56
=1824HamiltonOntario, Canada 33 US AQI▲449
=1824WindsorOntario, Canada 33 US AQI▲329
=1853HaskovoHaskovo, Bulgaria 32 US AQI▼19
=1853ValenciaValencia, Spain 32 US AQI
=1853LeedsEngland, United Kingdom 32 US AQI▲42
=1853ZwanenburgNorth Holland, The Netherlands 32 US AQI▼104
=1853EnschedeOverijssel, The Netherlands 32 US AQI▼613
=1853BreukelenUtrecht, The Netherlands 32 US AQI▼502
=1853MechelenFlanders, Belgium 32 US AQI▼338
=1853StrausbergBrandenburg, Germany 32 US AQI▼159
=1853MannheimBaden-Wurttemberg, Germany 32 US AQI▼156
=1853TraleeMunster, Ireland 32 US AQI▲22
=1853BallinasloeConnacht, Ireland 32 US AQI▲125
=1853ŻaryLubusz, Poland 32 US AQI
=1853Presidente PrudenteSão Paulo, Brazil 32 US AQI▲56
=1853GainesvilleGeorgia, United States 32 US AQI▲285
=1853JeffersontownKentucky, United States 32 US AQI▲320
=1853NicholasvilleKentucky, United States 32 US AQI▲402
=1853Oak GroveKentucky, United States 32 US AQI▲362
=1853KearneyMissouri, United States 32 US AQI▲207
=1853WavelandMississippi, United States 32 US AQI▲208
=1853LexingtonNorth Carolina, United States 32 US AQI▲247
=1853BraidwoodIllinois, United States 32 US AQI▲323
=1853Lincoln ParkMichigan, United States 32 US AQI▲324
=1853New BaltimoreMichigan, United States 32 US AQI▲406
=1853TecumsehMichigan, United States 32 US AQI▲326
=1853Bayonnelast full day 11 OctNew Jersey, United States 32 US AQI▲139
=1853Jersey CityNew Jersey, United States 32 US AQI▲252
=1853AkronOhio, United States 32 US AQI▲292
=1853ScrantonPennsylvania, United States 32 US AQI▲580
=1853AppletonWisconsin, United States 32 US AQI▲214
=1853BarabooWisconsin, United States 32 US AQI▲141
=1853Los BanosCalifornia, United States 32 US AQI▼53
=1853SeasideCalifornia, United States 32 US AQI▼174
=1853SolvangCalifornia, United States 32 US AQI▲180
=1853GreeleyColorado, United States 32 US AQI▲7
=1853PortlandOregon, United States 32 US AQI▲146
=1853PierreSouth Dakota, United States 32 US AQI▲69
=1853Cedar Hillslast full day 11 OctUtah, United States 32 US AQI▲185
=1853TulalipWashington, United States 32 US AQI▲36
=1853BrantfordOntario, Canada 32 US AQI▲419
=1853KamloopsBritish Columbia, Canada 32 US AQI▲227
=1853NewmarketOntario, Canada 32 US AQI▲612
=1894NonoichiIshikawa, Japan 32 US AQI▲188
=1894TraralgonVictoria, Australia 32 US AQI
=1894CandelariaCanary Islands, Spain 32 US AQI
=1894BurrianaValencia, Spain 32 US AQI
=1894BunyolaBalearic Islands, Spain 32 US AQI
=1894CardiffWales, United Kingdom 32 US AQI▲228
=1894VoitsbergStyria, Austria 32 US AQI▼202

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 7 days to 14 Oct 2026, 07:00 UTC: each city's mean of its daily means, cities measured on 5 or more of the 7 days. Monitor data from national networks via OpenAQ and the publishers listed at smogrank.com/sources. smogrank.com/rankings?w=7d. Ranked on low-cost sensors, with no reference monitor in the city: #1 Kuala Lumpur, #3 Dhaka, #4 Faisalabad, #5 Kasur, #6 Gujranwala, #7 Lahore, #8 Peshawar, #9 Multan and #10 Jakarta. Some readings from Vietnam's government monitors; Uzhydromet (Uzbekistan's Hydrometeorological Service); 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 07:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some readings: Vietnam's government monitors; Uzhydromet (Uzbekistan's Hydrometeorological Service); 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).