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.

=740Berlinlast full day 11 OctState of Berlin, Germany 52 US AQI▼142
=740Sainte-Geneviève-des-BoisÎle-de-France, France 52 US AQI▼156
=740GyőrGyőr-Moson-Sopron, Hungary 52 US AQI▼228
=740Mladá BoleslavCentral Bohemia, Czechia 52 US AQI▼23
=740Ceglie MessapicaApulia, Italy 52 US AQI▼62
=740ZapopanJalisco, Mexico 52 US AQI▲21
=740ShreveportLouisiana, United States 52 US AQI▼120
=740BartlettTennessee, United States 52 US AQI▲62
=740Misato, SaitamaSaitama, Japan 52 US AQI▲89
=740IrumaSaitama, Japan 52 US AQI▲135
=740MotosuGifu, Japan 52 US AQI▲166
=740SaitamaSaitama, Japan 52 US AQI▲167
=740TakuSaga, Japan 52 US AQI▲65
=740OgōriFukuoka, Japan 52 US AQI▲51
=740HigashikurumeTokyo, Japan 52 US AQI▲136
=765SzegedCsongrád, Hungary 52 US AQI▼189
=765BardejovPrešov Region, Slovakia 52 US AQI▼287
=765DimitrovgradHaskovo, Bulgaria 52 US AQI▼132
=765UedaNagano, Japan 52 US AQI▲240
=765NumazuShizuoka, Japan 52 US AQI▼30
=765NakatsuOita, Japan 52 US AQI▲190
=765NabariMie, Japan 52 US AQI▲219
=765MiharaHiroshima, Japan 52 US AQI▼29
=765KoshigayaSaitama, Japan 52 US AQI▲91
=765KikuchiKumamoto, Japan 52 US AQI▲68
=765KashiwaraNara, Japan 52 US AQI▲273
=765SayamaSaitama, Japan 52 US AQI▲93
=765TrenčínTrenčín Region, Slovakia 52 US AQI▼272
=765PłockMazovia, Poland 52 US AQI▼166
=765Jelenia GóraLower Silesia, Poland 52 US AQI▲76
=765GdyniaPomerania, Poland 52 US AQI▼74
=765Saronnolast full day 11 OctLombardy, Italy 52 US AQI
=765TulancingoHidalgo, Mexico 52 US AQI▲289
=765CatoosaOklahoma, United States 52 US AQI▼42
=765ChattanoogaTennessee, United States 52 US AQI▲682
=765PortervilleCalifornia, United States 52 US AQI▼70
=765SugaiKyoto, Japan 52 US AQI▲144
=765Kogalast full day 11 OctFukuoka, Japan 52 US AQI▼83
=765ShikokuchūōEhime, Japan 52 US AQI▲3
=765AsakuchiOkayama, Japan 52 US AQI▲66
not rankedOtsegoMinnesota, United States 52 US AQI
=790PrzemyślSubcarpathia, Poland 52 US AQI▼90
=790PhichitPhichit, Thailand 52 US AQI▲156
=790DamyangJeollanam-do, South Korea 52 US AQI▼61
=790KunwiGyeongsangbuk-do, South Korea 52 US AQI▼18
=790GoseongGyeongsangnam-do, South Korea 52 US AQI▲17
=790Jeju CityJeju-do, South Korea 52 US AQI▲121
=790OyamaTochigi, Japan 52 US AQI▲127
=790ŌitaOita, Japan 52 US AQI▲163
=790KurashikiOkayama, Japan 52 US AQI▲91
=790KawagoeSaitama, Japan 52 US AQI▲166
=790Kashihara-shiNara, Japan 52 US AQI▲197
=790Ponggae-dongJeju-do, South Korea 52 US AQI▲170
=790UngsangGyeongsangnam-do, South Korea 52 US AQI▼33
=790ImabariEhime, Japan 52 US AQI▲23
=790SagaeYamagata, Japan 52 US AQI▲69
=790NagaiYamagata, Japan 52 US AQI▲71
=790KitamiHokkaido, Japan 52 US AQI▲140
=790AsahikawaHokkaido, Japan 52 US AQI▲224
=790NitraNitra Region, Slovakia 52 US AQI▼305
=790Ústí nad LabemÚstí nad Labem Region, Czechia 52 US AQI▼100
=790PardubicePardubice Region, Czechia 52 US AQI▲75
=790MariglianoCampania, Italy 52 US AQI▼406
=790Mixquiahuala de JuárezHidalgo, Mexico 52 US AQI▲426
=790JacksonMississippi, United States 52 US AQI▲36
=790Oklahoma CityOklahoma, United States 52 US AQI▼45
=790HighlandsTexas, United States 52 US AQI▼96
=790HoustonTexas, United States 52 US AQI▲56
=790Chula VistaCalifornia, United States 52 US AQI▼44
=790ComptonCalifornia, United States 52 US AQI▼144
=790WhittierCalifornia, United States 52 US AQI▼127
=790AyaseKanagawa, Japan 52 US AQI▲2
=790ItoshimaFukuoka, Japan 52 US AQI▲58
not rankedPaduaVeneto, Italy 52 US AQI
=822Hualien CityTaiwan, Taiwan 52 US AQI▲441
=822BusanBusan, South Korea 52 US AQI▼72
=822TomiokaKumamoto, Japan 52 US AQI▼14
=822SōkaSaitama, Japan 52 US AQI▲94
=822KumamotoKumamoto, Japan 52 US AQI▼28
=822Kanzakimachi-kanzakiSaga, Japan 52 US AQI▲12
=822Mount IsaQueensland, Australia 52 US AQI▼24
=822HanamakiIwate, Japan 52 US AQI▲107
=822ChitoseHokkaido, Japan 52 US AQI▲109
=822SolofraCampania, Italy 52 US AQI▼460
=822HaysvilleKansas, United States 52 US AQI▼21
=822HawthorneCalifornia, United States 52 US AQI▼201
not rankedVelika GoricaZagreb County, Croatia 52 US AQI
not rankedJenksOklahoma, United States 52 US AQI
not rankedMemphisTennessee, United States 52 US AQI
=834CiechanówMazovia, Poland 52 US AQI▼133
=834AtsugiKanagawa, Japan 52 US AQI▲114
=834TsuMie, Japan 52 US AQI▲194
=834TokorozawaSaitama, Japan 52 US AQI▲115
=834NagahamaShiga, Japan 52 US AQI▲20
=834KurihamaKanagawa, Japan 52 US AQI▲86
=834HōryūjiNara, Japan 52 US AQI▲2
=834NakaIbaraki, Japan 52 US AQI▲26
=834IwanumaMiyagi, Japan 52 US AQI▲94
=834PesqueríaNuevo León, Mexico 52 US AQI▼50
=834Irapuatolast full day 11 OctGuanajuato, Mexico 52 US AQI▲64

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).