All 3,291 cities by PM2.5, last 30 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.

=2068Oak GroveKentucky, United States 34 US AQI▼153
=2068University CityMissouri, United States 34 US AQI▼291
=2068PascagoulaMississippi, United States 34 US AQI▼106
=2068ElginIllinois, United States 34 US AQI▼102
=2068GaryIndiana, United States 34 US AQI▼100
=2068DetroitMichigan, United States 34 US AQI▼148
=2068PalmyraNew Jersey, United States 34 US AQI▼147
=2068MaumeeOhio, United States 34 US AQI▼146
=2068El RioCalifornia, United States 34 US AQI▼286
=2068GlendiveMontana, United States 34 US AQI▼142
=2068SeattleWashington, United States 34 US AQI▼189
=2068EstevanSaskatchewan, Canada 34 US AQI▼187
=2068SayamaOsaka, Japan 34 US AQI▼138
=2068FuchūTokyo, Japan 34 US AQI▼179
=2115RēzekneRēzekne, Latvia 34 US AQI▼225
=2115TakinomiyaKagawa, Japan 34 US AQI▼222
=2115ShizuokaShizuoka, Japan 34 US AQI▼128
=2115KomatsuIshikawa, Japan 34 US AQI▼218
=2115IseharaKanagawa, Japan 34 US AQI▼179
=2115IkarugaHyōgo, Japan 34 US AQI▼178
=2115KesennumaMiyagi, Japan 34 US AQI▼175
=2115HanamakiIwate, Japan 34 US AQI▼215
=2115RichmondNew South Wales, Australia 34 US AQI▼305
=2115CampbelltownNew South Wales, Australia 34 US AQI▼303
=2115BathurstNew South Wales, Australia 34 US AQI▼257
=2115Kingston upon HullEngland, United Kingdom 34 US AQI
=2115GraysEngland, United Kingdom 34 US AQI
=2115BradfordEngland, United Kingdom 34 US AQI
=2115BlackpoolEngland, United Kingdom 34 US AQI
=2115NoordwijkerhoutSouth Holland, The Netherlands 34 US AQI▼174
=2115GingelomFlanders, Belgium 34 US AQI▼213
=2115WetzlarHesse, Germany 34 US AQI▼116
=2115Wernigerodelast full day 10 OctSaxony-Anhalt, Germany 34 US AQI▼254
=2115OytenLower Saxony, Germany 34 US AQI▼211
=2115Marburg an der LahnHesse, Germany 34 US AQI▼37
=2115Lauenburglast full day 10 OctSchleswig-Holstein, Germany 34 US AQI▼393
=2115Eisenachlast full day 10 OctThuringia, Germany 34 US AQI▼115
=2115ToulouseOccitanie, France 34 US AQI▼160
=2115BurgosCastille and León, Spain 34 US AQI
=2115Aranda de DueroCastille and León, Spain 34 US AQI
=2115Guanajuatolast full day 11 OctGuanajuato, Mexico 34 US AQI▼204
=2115Valricolast full day 11 OctFlorida, United States 34 US AQI▼203
=2115Warringtonlast full day 6 OctFlorida, United States 34 US AQI▼202
=2115BristolVirginia, United States 34 US AQI▼63
=2115BloomingtonIllinois, United States 34 US AQI▼150
=2115WarrenvilleIllinois, United States 34 US AQI▼103
=2115HammondIndiana, United States 34 US AQI▼146
=2115Michigan CityIndiana, United States 34 US AQI▼102
=2115AlpineCalifornia, United States 34 US AQI▼280
=2115OaklandCalifornia, United States 34 US AQI▼144
=2115SeasideCalifornia, United States 34 US AQI▼279
=2115VancouverBritish Columbia, Canada 34 US AQI▼233
=2115Dallgow-DöberitzBrandenburg, Germany 34 US AQI▼232
=2115Hitachi-NakaIbaraki, Japan 34 US AQI▼140
=2115EbinaKanagawa, Japan 34 US AQI▼139
=2115AkishimaTokyo, Japan 34 US AQI▼186
=2115YachiyoChiba, Japan 34 US AQI▼138
=2115HigashimatsushimaMiyagi, Japan 34 US AQI▼137
=2115MotonaChiba, Japan 34 US AQI▼136
=2160AtsugiKanagawa, Japan 33 US AQI▼175
=2160ToyookaHyōgo, Japan 33 US AQI▼269
=2160TateyamaChiba, Japan 33 US AQI▼174
=2160SuwaNagano, Japan 33 US AQI▼90
=2160MachidaTokyo, Japan 33 US AQI▼227
=2160KanumaTochigi, Japan 33 US AQI▼169
=2160KaminokawaTochigi, Japan 33 US AQI▼225
=2160Hamadalast full day 11 OctShimane, Japan 33 US AQI▼222
=2160TorideIbaraki, Japan 33 US AQI▼167
=2160Tagajō-shiMiyagi, Japan 33 US AQI▼166
=2160MookaTochigi, Japan 33 US AQI▼164
=2160MitoIbaraki, Japan 33 US AQI▼128
=2160KasamaIbaraki, Japan 33 US AQI▼163
=2160Port MacquarieNew South Wales, Australia 33 US AQI▼162
=2160OrangeNew South Wales, Australia 33 US AQI▼349
=2160SantanaMadeira, Portugal 33 US AQI▼347
=2160Caravacalast full day 11 OctMurcia, Spain 33 US AQI
=2160WiganEngland, United Kingdom 33 US AQI
=2160GothenburgVästra Götaland, Sweden 33 US AQI▼259
=2160HeerlenLimburg, The Netherlands 33 US AQI▼217
=2160FreistadtUpper Austria, Austria 33 US AQI▼216
=2160AarschotFlanders, Belgium 33 US AQI▼215
=2160WittenbergeBrandenburg, Germany 33 US AQI▼300
=2160Lüchowlast full day 10 OctLower Saxony, Germany 33 US AQI▼298
=2160Herrsching am AmmerseeBavaria, Germany 33 US AQI▼437
=2160Hattingenlast full day 10 OctNorth Rhine-Westphalia, Germany 33 US AQI
=2160Esch-sur-AlzetteEsch-sur-Alzette, Luxembourg 33 US AQI▼253
=2160WexfordLeinster, Ireland 33 US AQI▼207
=2160LetterkennyUlster, Ireland 33 US AQI▼159
=2160RennesBrittany, France 33 US AQI▼158
=2160PoitiersNew Aquitaine, France 33 US AQI▼204
=2160FilderstadtBaden-Wurttemberg, Germany 33 US AQI▼250
=2160San Miguel de Allendelast full day 11 OctGuanajuato, Mexico 33 US AQI▼292
=2160FairhopeAlabama, United States 33 US AQI▼69
=2160BrunswickGeorgia, United States 33 US AQI▼116
=2160BloomingtonIndiana, United States 33 US AQI▼200
=2160LawrenceKansas, United States 33 US AQI▼199
=2160TopekaKansas, United States 33 US AQI▼246
=2160NicholasvilleKentucky, United States 33 US AQI▼114
=2160LoudonTennessee, United States 33 US AQI▼150
=2160ChesapeakeVirginia, United States 33 US AQI▼197

What stands behind each figure: Checked at 2+ sites One reference monitor Low-cost sensors 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 30 days to 14 Oct 2026, 06:00 UTC: each city's mean of its daily means, cities measured on 21 or more of the 30 days. Monitor data from national networks via OpenAQ and the publishers listed at smogrank.com/sources. smogrank.com/rankings?w=30d. Ranked on low-cost sensors, with no reference monitor in the city: #1 Kasur, #2 Gujranwala, #3 Kuala Lumpur, #5 Lahore, #6 Faisalabad, #9 Peshawar and #10 Dhaka. Some values from Sensor.Community, ODbL. Some readings from Vietnam's government monitors; 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 low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Vietnam's government monitors; 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).