All 2,894 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 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.

Hide the 297 cities with only 1–2 sensors

These cities have only one or two low-cost sensors, and one cheap unit can read well off, so they take no rank. They sit at their place by value, marked –, and every ranked city keeps its number.

=1681Laudio / LlodioBasque Country, Spain 36 US AQI
=1681GetxoBasque Country, Spain 36 US AQI
=1681ComoLombardy, Italy 36 US AQI▼556
=1681PtujUrban Municipality of Ptuj, Slovenia 36 US AQI▼554
=1681Santa CatarinaNuevo León, Mexico 36 US AQI▲205
=1681MiddlesboroKentucky, United States 36 US AQI▲465
=1681ChalmetteLouisiana, United States 36 US AQI▲240
=1681KennerLouisiana, United States 36 US AQI▲275
=1681PrienLouisiana, United States 36 US AQI▼28
=1681CamdenNew Jersey, United States 36 US AQI▲279
=1681DentOhio, United States 36 US AQI▲173
=1681AustinTexas, United States 36 US AQI▼26
=1681Cedar ParkTexas, United States 36 US AQI▼62
=1681SeabrookTexas, United States 36 US AQI▼154
=1681ChampaignIllinois, United States 36 US AQI
=1681Winthrop HarborIllinois, United States 36 US AQI▲318
=1681MaumeeOhio, United States 36 US AQI▲178
=1681WarrenOhio, United States 36 US AQI▲244
=1681Santa ClaritaCalifornia, United States 36 US AQI▲91
=1681TigardOregon, United States 36 US AQI▼20
=1681KentWashington, United States 36 US AQI▼188
=1681Sorel-TracyQuebec, Canada 36 US AQI▼143
=1681CeutaCeuta, Spain 36 US AQI
=1681LiberpolisCounty of Osijek-Baranja, Croatia 36 US AQI
not rankedNormalIllinois, United States 36 US AQI
not rankedAshburtonCanterbury, New Zealand 36 US AQI
=1720Ōdachō-ōdalast full day 11 OctShimane, Japan 35 US AQI▲10
=1720Nakamalast full day 11 OctFukuoka, Japan 35 US AQI▲93
=1720TuggeranongAustralian Capital Territory, Australia 35 US AQI▲34
=1720CanberraAustralian Capital Territory, Australia 35 US AQI▼1250
=1720BlackwaterQueensland, Australia 35 US AQI▲263
=1720AlgecirasAndalusia, Spain 35 US AQI
=1720Hainburg an der DonauLower Austria, Austria 35 US AQI▼407
=1720BeverenFlanders, Belgium 35 US AQI▼539
=1720PotsdamBrandenburg, Germany 35 US AQI▼107
=1720Fontaine-lès-DijonBourgogne-Franche-Comté, France 35 US AQI▲99
=1720BordeauxNew Aquitaine, France 35 US AQI▲20
=1720Fort LauderdaleFlorida, United States 35 US AQI▲102
=1720JasperIndiana, United States 35 US AQI▲275
=1720AshlandKentucky, United States 35 US AQI▲314
=1720PawtucketRhode Island, United States 35 US AQI▲168
=1720WatertownSouth Dakota, United States 35 US AQI▼64
=1720BerkeleyCalifornia, United States 35 US AQI▲285
=1720VictorvilleCalifornia, United States 35 US AQI▼62
=1720ThorntonColorado, United States 35 US AQI▼61
=1720OdessaTexas, United States 35 US AQI▲86
=1720Apache JunctionArizona, United States 35 US AQI▲55
=1720SandpointIdaho, United States 35 US AQI▼183
=1720ToppenishWashington, United States 35 US AQI▼94
=1720AgassizBritish Columbia, Canada 35 US AQI▼58
=1720ChilliwackBritish Columbia, Canada 35 US AQI▼93
=1720KaiapoiCanterbury, New Zealand 35 US AQI▲27
=1746ŌgakiGifu, Japan 34 US AQI▲192
=1746Gōtsuchōlast full day 11 OctShimane, Japan 34 US AQI▲5
=1746Prado del ReyAndalusia, Spain 34 US AQI
=1746's-GravenzandeSouth Holland, The Netherlands 34 US AQI▼229
=1746The HagueSouth Holland, The Netherlands 34 US AQI▼108
=1746RidderkerkSouth Holland, The Netherlands 34 US AQI▼470
=1746GänserndorfLower Austria, Austria 34 US AQI▼500
=1746Neuruppinlast full day 11 OctBrandenburg, Germany 34 US AQI▼187
=1746ThionvilleGrand Est, France 34 US AQI▼67
=1746DouaiHauts-de-France, France 34 US AQI▼156
=1746Leccolast full day 11 OctLombardy, Italy 34 US AQI
=1746Castano PrimoLombardy, Italy 34 US AQI
=1746BiellaPiedmont, Italy 34 US AQI▼359
=1746MalmesburyWestern Cape, South Africa 34 US AQI▲47
=1746St. PetersburgFlorida, United States 34 US AQI▲287
=1746BloomingtonIndiana, United States 34 US AQI▲248
=1746CharlotteNorth Carolina, United States 34 US AQI▲107
=1746BeltonTexas, United States 34 US AQI▼31
=1746NewarkNew Jersey, United States 34 US AQI▲256
=1746GreendaleWisconsin, United States 34 US AQI▲258
=1746MadisonWisconsin, United States 34 US AQI▲181
=1746CarpinteriaCalifornia, United States 34 US AQI▲25
=1746SocorroTexas, United States 34 US AQI▲86
=1746Baker CityOregon, United States 34 US AQI▼58
=1746GuelphOntario, Canada 34 US AQI▲414
=1746VernonBritish Columbia, Canada 34 US AQI
not rankedBoomFlanders, Belgium 34 US AQI
not rankedParmaOhio, United States 34 US AQI
not rankedSan RamonCalifornia, United States 34 US AQI
=1772MiyazuKyoto, Japan 34 US AQI▲99
=1772HitachiIbaraki, Japan 34 US AQI▲70
=1772RichmondNew South Wales, Australia 34 US AQI▲71
=1772CártamaAndalusia, Spain 34 US AQI
=1772CampillosAndalusia, Spain 34 US AQI
=1772GiubiascoTicino, Switzerland 34 US AQI▼530
=1772UtrechtUtrecht, The Netherlands 34 US AQI▼593
=1772TilburgNorth Brabant, The Netherlands 34 US AQI▼497
=1772KapellenFlanders, Belgium 34 US AQI▼756
=1772AbasoloGuanajuato, Mexico 34 US AQI▲450
=1772Fort MyersFlorida, United States 34 US AQI▲260
=1772Venice Gardenslast full day 11 OctFlorida, United States 34 US AQI▲22
=1772FlatwoodsKentucky, United States 34 US AQI▲373
=1772GreenvilleSouth Carolina, United States 34 US AQI▲264
=1772BristolVirginia, United States 34 US AQI▲457
=1772HudsonvilleMichigan, United States 34 US AQI▲303
=1772Saint CloudMinnesota, United States 34 US AQI▼86
=1772DublinOhio, United States 34 US AQI▲266
=1772Green BayWisconsin, United States 34 US AQI▲191

What stands behind each figure: Checked at 2+ sites One reference monitor Low-cost sensors 1–2 sensors, not ranked 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, 06:00 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 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 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).