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.

=935KyotoKyoto, Japan 51 US AQI▲101
=935KasukabeSaitama, Japan 51 US AQI▲140
=935HashimotoWakayama, Japan 51 US AQI▲106
=935MatsuyamaEhime, Japan 51 US AQI▲27
=935SakuraChiba, Japan 51 US AQI▲55
=935MoriokaIwate, Japan 51 US AQI▲109
=935Frýdek-MístekMoravian-Silesian Region, Czechia 51 US AQI▲2
=935TrentoTrentino-Alto Adige, Italy 51 US AQI▼258
=935Rio de JaneiroRio de Janeiro, Brazil 51 US AQI▲61
=935Ciudad JuárezChihuahua, Mexico 51 US AQI▼277
=935Wood RiverIllinois, United States 51 US AQI▼35
=935Terre HauteIndiana, United States 51 US AQI▼173
=935Kansas CityKansas, United States 51 US AQI▼191
=935NorwoodOhio, United States 51 US AQI▲218
=935CarsonCalifornia, United States 51 US AQI▼211
=935FontanaCalifornia, United States 51 US AQI▼210
=935TurlockCalifornia, United States 51 US AQI▼146
=935SeogwipoJeju-do, South Korea 51 US AQI▲65
=935BandōIbaraki, Japan 51 US AQI▲162
=935EbinaKanagawa, Japan 51 US AQI▲163
=935NoboritoKanagawa, Japan 51 US AQI▲165
=935FuchūTokyo, Japan 51 US AQI▲167
=935KamagayaChiba, Japan 51 US AQI▲132
=966YamagaKumamoto, Japan 50 US AQI▲140
=966SusakiKochi, Japan 50 US AQI▼51
=966Shimo-tsumaIbaraki, Japan 50 US AQI▲44
=966ShimogamoOkayama, Japan 50 US AQI▼14
=966MikuniFukui, Japan 50 US AQI▲145
=966KamakuraKanagawa, Japan 50 US AQI▲110
=966IbiGifu, Japan 50 US AQI▲208
=966AnanTokushima, Japan 50 US AQI▼40
=966HikariYamaguchi, Japan 50 US AQI▼5
=966IyoEhime, Japan 50 US AQI▲77
=966Natori-shiMiyagi, Japan 50 US AQI▲150
=966HigashineYamagata, Japan 50 US AQI▲112
=966PrievidzaTrenčín Region, Slovakia 50 US AQI▼349
=966CotaCundinamarca, Colombia 50 US AQI▼286
=966Ciudad Benito JuárezNuevo León, Mexico 50 US AQI▼69
=966Upper AltonIllinois, United States 50 US AQI▼99
=966DentonTexas, United States 50 US AQI▼139
=966San AntonioTexas, United States 50 US AQI▼203
=966HollandMichigan, United States 50 US AQI▲165
=966MantecaCalifornia, United States 50 US AQI▼94
=966WillowsCalifornia, United States 50 US AQI▼361
=966ChikuseiIbaraki, Japan 50 US AQI▲6
not rankedHastingsMinnesota, United States 50 US AQI
=988GijangBusan, South Korea 49 US AQI▼136
=988YokohamaKanagawa, Japan 49 US AQI▲147
=988Ueno-ebisumachiMie, Japan 49 US AQI▲277
=988TosuSaga, Japan 49 US AQI▲82
=988ShizuokaShizuoka, Japan 49 US AQI▲84
=988Narutochō-mitsuishiTokushima, Japan 49 US AQI▲121
=988MiyakonojōMiyazaki, Japan 49 US AQI▼177
=988KaratsuSaga, Japan 49 US AQI▲23
=988KakegawaShizuoka, Japan 49 US AQI▲215
=988FujisawaKanagawa, Japan 49 US AQI▲155
=988KōriyamaFukushima, Japan 49 US AQI▲189
=988HachinoheAomori, Japan 49 US AQI▲92
=988ThièsThies, Senegal 49 US AQI▲323
=988VallettaValletta, Malta 49 US AQI▼173
=988BudapestBudapest, Hungary 49 US AQI▼455
=988Hradec KrálovéHradec Králové Region, Czechia 49 US AQI▼20
=988AugustaGeorgia, United States 49 US AQI▲67
=988McAlesterOklahoma, United States 49 US AQI▼143
=988Wells BranchTexas, United States 49 US AQI▼119
=988WindcrestTexas, United States 49 US AQI▼185
=988MankatoMinnesota, United States 49 US AQI▼201
=988LancasterPennsylvania, United States 49 US AQI▲300
=988YumaArizona, United States 49 US AQI▼85
=988GridleyCalifornia, United States 49 US AQI▼84
=988ModestoCalifornia, United States 49 US AQI▼141
=988AkishimaTokyo, Japan 49 US AQI▲145
=988KinokawaWakayama, Japan 49 US AQI▲111
=988GeojeGyeongsangnam-do, South Korea 49 US AQI▼43
=988BizenOkayama, Japan 49 US AQI▲38
not rankedPakseChampasak Province, Laos 49 US AQI
=1017EłkWarmia-Masuria, Poland 49 US AQI▼269
=1017GaigeturiJeju-do, South Korea 49 US AQI▲117
=1017UjiKyoto, Japan 49 US AQI▲151
=1017TsurusakiOita, Japan 49 US AQI▲180
=1017TakatsukiOsaka, Japan 49 US AQI▼35
=1017SumotoHyōgo, Japan 49 US AQI▼8
=1017SendaiKagoshima, Japan 49 US AQI▲12
=1017SakataYamagata, Japan 49 US AQI▲13
=1017ŌtsuShiga, Japan 49 US AQI▲121
=1017NishiwakiHyōgo, Japan 49 US AQI▲153
=1017MiyoshiHiroshima, Japan 49 US AQI▲123
=1017MinamataKumamoto, Japan 49 US AQI▲18
=1017Kitakyushulast full day 11 OctFukuoka, Japan 49 US AQI▼185
=1017KisarazuChiba, Japan 49 US AQI▲184
=1017GionHiroshima, Japan 49 US AQI▲97
=1017YamagataYamagata, Japan 49 US AQI▲98
=1017PartizánskeTrenčín Region, Slovakia 49 US AQI▼361
=1017HnúšťaBanská Bystrica Region, Slovakia 49 US AQI▼376
=1017Szczytnalast full day 11 OctLower Silesia, Poland 49 US AQI▼79
=1017SorocabaSão Paulo, Brazil 49 US AQI▼75
=1017GlenpoolOklahoma, United States 49 US AQI▼19
=1017MooreOklahoma, United States 49 US AQI▼46
=1017DoltonIllinois, United States 49 US AQI▲311
=1017AnaheimCalifornia, United States 49 US AQI▼147

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).