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.

=834HernandoMississippi, United States 52 US AQI▲34
=834Deer ParkTexas, United States 52 US AQI▼189
=834PasadenaTexas, United States 52 US AQI▼153
=834Los AngelesCalifornia, United States 52 US AQI▼203
=834TsuchiuraIbaraki, Japan 52 US AQI▲139
=834JōsōIbaraki, Japan 52 US AQI▲140
=834KumanoMie, Japan 52 US AQI▲357
=834KikugawaShizuoka, Japan 52 US AQI▲141
=834KaizuGifu, Japan 52 US AQI▲229
=834MinamikyushuKagoshima, Japan 52 US AQI▼28
not rankedSimpsonvilleSouth Carolina, United States 52 US AQI
=855DębicaSubcarpathia, Poland 52 US AQI▼85
=855MokopaneLimpopo, South Africa 52 US AQI▼106
=855YoukaichiShiga, Japan 52 US AQI▲57
=855TagawaFukuoka, Japan 52 US AQI▲22
=855SuwaNagano, Japan 52 US AQI▲153
=855NaganoNagano, Japan 52 US AQI▲178
=855MinanoSaitama, Japan 52 US AQI▲179
=855KogaFukuoka, Japan 52 US AQI▲67
=855IsahayaNagasaki, Japan 52 US AQI▲68
=855IkedachōTokushima, Japan 52 US AQI▼59
=855HikoneShiga, Japan 52 US AQI▲157
=855HirosakiAomori, Japan 52 US AQI▲224
=855AomoriAomori, Japan 52 US AQI▲108
=855TimaruCanterbury, New Zealand 52 US AQI▼16
=855Liptovský MikulášŽilina Region, Slovakia 52 US AQI▼282
=855ZlínZlín, Czechia 52 US AQI▼115
=855KarvináMoravian-Silesian Region, Czechia 52 US AQI▼34
=855WschowaLubusz, Poland 52 US AQI▼137
=855PaulíniaSão Paulo, Brazil 52 US AQI▼31
=855BauruSão Paulo, Brazil 52 US AQI▼135
=855Fort DodgeIowa, United States 52 US AQI▼91
=855SusonoShizuoka, Japan 52 US AQI▲121
=855HigashimurayamaTokyo, Japan 52 US AQI▲122
=855AzaminoKanagawa, Japan 52 US AQI▲89
=879SofiaSofia-Capital, Bulgaria 51 US AQI▼132
=879VelesVeles, North Macedonia 51 US AQI▼312
=879AranyaprathetSa Kaeo, Thailand 51 US AQI▲148
=879Cheongsong gunGyeongsangbuk-do, South Korea 51 US AQI▲68
=879YaitaTochigi, Japan 51 US AQI▲190
=879TanabeWakayama, Japan 51 US AQI▲128
=879SaikuboGunma, Japan 51 US AQI▲352
=879MarugameKagawa, Japan 51 US AQI▲40
=879KusatsuShiga, Japan 51 US AQI▲158
=879Kakogawachō-honmachiHyōgo, Japan 51 US AQI▲78
=879IizukaFukuoka, Japan 51 US AQI▲110
=879HadanoKanagawa, Japan 51 US AQI▲134
=879AmagasakiHyōgo, Japan 51 US AQI▲48
=879Peschiera del GardaVeneto, Italy 51 US AQI
=879BorgomaneroPiedmont, Italy 51 US AQI▼341
=879Santo AndréSão Paulo, Brazil 51 US AQI▼222
=879Ribeirão PretoSão Paulo, Brazil 51 US AQI▲91
=879AtlantaGeorgia, United States 51 US AQI▲338
=879ClevelandMississippi, United States 51 US AQI▼36
=879Calumet CityIllinois, United States 51 US AQI▲177
=879Franklin ParkIllinois, United States 51 US AQI▲142
=879Fort WayneIndiana, United States 51 US AQI▲120
=879InglewoodCalifornia, United States 51 US AQI▼8
=879YamatoKanagawa, Japan 51 US AQI▲146
=879KodairaTokyo, Japan 51 US AQI▲187
=879JōyōKyoto, Japan 51 US AQI▲224
=905Piatra NeamţNeamț County, Romania 51 US AQI▼179
=905JangheungJeollanam-do, South Korea 51 US AQI▲322
=905ZentsujichóKagawa, Japan 51 US AQI▲99
=905TakamatsuKagawa, Japan 51 US AQI▲9
=905TakahashiOkayama, Japan 51 US AQI▲46
=905ShimonosekiYamaguchi, Japan 51 US AQI▲78
=905Nara-shiNara, Japan 51 US AQI▲205
=905MatsumotoNagano, Japan 51 US AQI▲266
=905KudamatsuYamaguchi, Japan 51 US AQI▲16
=905KashiwaChiba, Japan 51 US AQI▲81
=905IwataShizuoka, Japan 51 US AQI▲53
=905IwashitaKumamoto, Japan 51 US AQI▲134
=905IseharaKanagawa, Japan 51 US AQI▲54
=905HijiOita, Japan 51 US AQI▲172
=905Fukui-shiFukui, Japan 51 US AQI▲20
=905FujinomiyaShizuoka, Japan 51 US AQI▲137
=905SeirōNiigata, Japan 51 US AQI▼48
=905JihlavaVysocina, Czechia 51 US AQI▼83
=905HraniceOlomouc Region, Czechia 51 US AQI▲31
=905Kędzierzyn-KoźleOpole Voivodeship, Poland 51 US AQI▲34
=905CuencaCastille-La Mancha, Spain 51 US AQI
=905RoveretoTrentino-Alto Adige, Italy 51 US AQI▼287
=905OmegnaPiedmont, Italy 51 US AQI▼434
=905East Saint LouisIllinois, United States 51 US AQI▼80
=905EdmondOklahoma, United States 51 US AQI▼61
=905San JoseCalifornia, United States 51 US AQI▼117
=905ChikumaNagano, Japan 51 US AQI▲256
=905TakashimaShiga, Japan 51 US AQI▲156
=905KizugawaKyoto, Japan 51 US AQI▲160
=905ShūnanYamaguchi, Japan 51 US AQI▲97
not rankedVilla de San AntonioComayagua Department, Honduras 51 US AQI
=935YanaiYamaguchi, Japan 51 US AQI▲45
=935Ureshinomachi-shimojukuSaga, Japan 51 US AQI▲46
=935UbeYamaguchi, Japan 51 US AQI▲71
=935TokyoTokyo, Japan 51 US AQI▲136
=935TamanoOkayama, Japan 51 US AQI▼22
=935ObuseNagano, Japan 51 US AQI▲96
=935HigashinozoeHyōgo, Japan 51 US AQI▲19
=935NōgataFukuoka, Japan 51 US AQI▲97

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).