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.

=1495Prince GeorgeBritish Columbia, Canada 39 US AQI▲401
=1495KōkaShiga, Japan 39 US AQI▲253
=1495SadoNiigata, Japan 39 US AQI▲168
=1495SayamaOsaka, Japan 39 US AQI▲233
=1495TatsunoHyōgo, Japan 39 US AQI▲108
not rankedDarlingtonEngland, United Kingdom 39 US AQI
not rankedWischGelderland, The Netherlands 39 US AQI
not rankedOosterhoutNorth Brabant, The Netherlands 39 US AQI
not rankedBowling GreenKentucky, United States 39 US AQI
not rankedWest ChesterPennsylvania, United States 39 US AQI
=1523T’aebaekGangwon-do, South Korea 39 US AQI▲56
=1523ToyookaHyōgo, Japan 39 US AQI▲85
=1523NanaoIshikawa, Japan 39 US AQI▲109
=1523ŌyauchiFukushima, Japan 39 US AQI▲114
=1523ŌamiChiba, Japan 39 US AQI▲147
=1523BasildonEngland, United Kingdom 39 US AQI▼8
=1523BredaNorth Brabant, The Netherlands 39 US AQI▼707
=1523MeulebekeFlanders, Belgium 39 US AQI▼531
=1523SenicaTrnava Region, Slovakia 39 US AQI▼435
=1523KolárovoNitra Region, Slovakia 39 US AQI▼371
=1523FairhopeAlabama, United States 39 US AQI▲394
=1523Bonita SpringsFlorida, United States 39 US AQI▲187
=1523LeawoodKansas, United States 39 US AQI▲70
=1523SharonvilleOhio, United States 39 US AQI▲332
=1523AnkenyIowa, United States 39 US AQI▲44
=1523Des PlainesIllinois, United States 39 US AQI▲279
=1523Grand RapidsMichigan, United States 39 US AQI▲247
=1523AltoonaWisconsin, United States 39 US AQI▼69
=1523Ben LomondCalifornia, United States 39 US AQI▼158
=1523KuriharaMiyagi, Japan 39 US AQI▲168
=1523HakubaNagano, Japan 39 US AQI▲491
not rankedBrooklyn CenterMinnesota, United States 39 US AQI
not rankedTwinsburgOhio, United States 39 US AQI
not rankedWisconsin RapidsWisconsin, United States 39 US AQI
=1544SuwałkiPodlasie, Poland 38 US AQI▼349
=1544SaikiOita, Japan 38 US AQI▲65
=1544HakodateHokkaido, Japan 38 US AQI▲209
=1544WollongongNew South Wales, Australia 38 US AQI▲42
=1544SwanseaWales, United Kingdom 38 US AQI▲240
=1544MödlingLower Austria, Austria 38 US AQI▼498
=1544RoeselareFlanders, Belgium 38 US AQI▼529
=1544CottbusBrandenburg, Germany 38 US AQI▼331
=1544Bernau bei BerlinBrandenburg, Germany 38 US AQI▼160
=1544CalaisHauts-de-France, France 38 US AQI▼225
=1544BogatyniaLower Silesia, Poland 38 US AQI▼19
=1544GijónAsturias, Spain 38 US AQI
=1544CeeGalicia, Spain 38 US AQI
=1544PollaCampania, Italy 38 US AQI▼1030
=1544Nocera InferioreCampania, Italy 38 US AQI▼763
=1544CuernavacaMorelos, Mexico 38 US AQI▼66
=1544San Luis de la Pazlast full day 11 OctGuanajuato, Mexico 38 US AQI▲224
=1544Saint MatthewsKentucky, United States 38 US AQI▲254
=1544JolietIllinois, United States 38 US AQI▲259
=1544AndersonIndiana, United States 38 US AQI▲260
=1544Apple ValleyMinnesota, United States 38 US AQI▼93
=1544Show LowArizona, United States 38 US AQI▼56
=1544Lake ElsinoreCalifornia, United States 38 US AQI▲31
=1544Cottage GroveOregon, United States 38 US AQI▼53
=1544CastlegarBritish Columbia, Canada 38 US AQI▼254
=1544NasukarasuyamaTochigi, Japan 38 US AQI▲233
=1544IkiNagasaki, Japan 38 US AQI▲206
not rankedManitowocWisconsin, United States 38 US AQI
=1571Veliko TŭrnovoVeliko Tarnovo, Bulgaria 38 US AQI▼270
=1571MaizuruKyoto, Japan 38 US AQI▲125
=1571InoKochi, Japan 38 US AQI▲97
=1571UwajimaEhime, Japan 38 US AQI▲98
=1571MaitlandNew South Wales, Australia 38 US AQI▼22
=1571Klagenfurt am WörtherseeCarinthia, Austria 38 US AQI▼363
=1571ZelzateFlanders, Belgium 38 US AQI▼607
=1571KortrijkFlanders, Belgium 38 US AQI▼487
=1571SokolovCarlsbad Region, Czechia 38 US AQI▼7
=1571SpringfieldIllinois, United States 38 US AQI▲79
=1571GulfportMississippi, United States 38 US AQI▲229
=1571YorkPennsylvania, United States 38 US AQI▲426
=1571Corpus ChristiTexas, United States 38 US AQI▼45
=1571EdinburgTexas, United States 38 US AQI▼87
=1571Michigan CityIndiana, United States 38 US AQI▲286
=1571RedfordMichigan, United States 38 US AQI▲27
=1571BlaineMinnesota, United States 38 US AQI▼84
=1571BellevueNebraska, United States 38 US AQI▲1
=1571Los BanosCalifornia, United States 38 US AQI▼37
=1571LewistownMontana, United States 38 US AQI▲30
=1571HitachiomiyaIbaraki, Japan 38 US AQI▲265
not rankedDiestFlanders, Belgium 38 US AQI
not rankedWaldkraiburgBavaria, Germany 38 US AQI
not rankedBentonvilleArkansas, United States 38 US AQI
not rankedWestonFlorida, United States 38 US AQI
not rankedHenriettaNew York, United States 38 US AQI
not rankedMorgan HillCalifornia, United States 38 US AQI
=1592KaunasKaunas, Lithuania 37 US AQI▲13
=1592Yasugichōlast full day 11 OctShimane, Japan 37 US AQI▼88
=1592MakiNiigata, Japan 37 US AQI▲187
=1592KumaEhime, Japan 37 US AQI▲160
=1592KitaibarakiIbaraki, Japan 37 US AQI▲139
=1592KatsuuraChiba, Japan 37 US AQI▲105
=1592TownsvilleQueensland, Australia 37 US AQI▲189
=1592WinterthurZurich, Switzerland 37 US AQI▲253
=1592Knokke-HeistFlanders, Belgium 37 US AQI▼443
=1592IngolstadtBavaria, Germany 37 US AQI▲22
=1592Gasteiz / VitoriaBasque Country, Spain 37 US AQI

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).