All 3,198 cities by PM2.5, this year

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.

=999FukuokaFukuoka, Japan 54 US AQI2.1 times the WHO guideline▼113
=999LinzUpper Austria, Austria 54 US AQI2.1 times the WHO guideline▼89
=999Deuchendorflast full day 24 SeptStyria, Austria 54 US AQI2.1 times the WHO guideline▼111
=999MeulebekeFlanders, Belgium 54 US AQI2.1 times the WHO guideline▼125
=999Stendallast full day 10 OctSaxony-Anhalt, Germany 54 US AQI2.1 times the WHO guideline▼220
=999Merseburglast full day 10 OctSaxony-Anhalt, Germany 54 US AQI2.1 times the WHO guideline▼219
=999Halberstadtlast full day 10 OctSaxony-Anhalt, Germany 54 US AQI2.1 times the WHO guideline▼203
=999WheelersburgOhio, United States 54 US AQI2.1 times the WHO guideline▼119
=999DetroitMichigan, United States 54 US AQI2.1 times the WHO guideline▼118
=999ClevelandOhio, United States 54 US AQI2.1 times the WHO guideline▼117
=999La GrandeOregon, United States 54 US AQI2.1 times the WHO guideline▼136
=999WindsorOntario, Canada 54 US AQI2.1 times the WHO guideline▼116
=999HigashihiroshimaHiroshima, Japan 54 US AQI2.1 times the WHO guideline▼115
=1014SuwałkiPodlasie, Poland 54 US AQI2.1 times the WHO guideline▼398
=1014TakamatsuKagawa, Japan 54 US AQI2.1 times the WHO guideline▼129
=1014PotsdamBrandenburg, Germany 54 US AQI2.1 times the WHO guideline▼148
=1014Bad Kreuznachlast full day 10 OctRheinland-Pfalz, Germany 54 US AQI2.1 times the WHO guideline
=1014NiceProvence-Alpes-Côte d'Azur, France 54 US AQI2.1 times the WHO guideline▼121
=1014MariborUrban Municipality of Maribor, Slovenia 54 US AQI2.1 times the WHO guideline▲54
=1014PiracicabaSão Paulo, Brazil 54 US AQI2.1 times the WHO guideline▼120
=1014BauruSão Paulo, Brazil 54 US AQI2.1 times the WHO guideline▼135
=1014MarionArkansas, United States 54 US AQI2.1 times the WHO guideline▼119
=1014SpartanburgSouth Carolina, United States 54 US AQI2.1 times the WHO guideline▼118
=1014LancasterPennsylvania, United States 54 US AQI2.1 times the WHO guideline▼117
=1014Great FallsMontana, United States 54 US AQI2.1 times the WHO guideline▼115
=1014HyūgaMiyazaki, Japan 54 US AQI2.1 times the WHO guideline▼113
=1027Tottori-shiTottori, Japan 53 US AQI2.1 times the WHO guideline▼125
=1027TakanabeMiyazaki, Japan 53 US AQI2.1 times the WHO guideline▼124
=1027TaharaAichi, Japan 53 US AQI2.1 times the WHO guideline▼123
=1027Kakogawachō-honmachiHyōgo, Japan 53 US AQI2.1 times the WHO guideline▼122
=1027ImabariEhime, Japan 53 US AQI2.1 times the WHO guideline▼120
=1027TimaruCanterbury, New Zealand 53 US AQI2.1 times the WHO guideline▼140
=1027HuelvaAndalusia, Spain 53 US AQI2.1 times the WHO guideline
=1027GħarbL-Għarb, Malta 53 US AQI2.1 times the WHO guideline▼154
=1027NorthamptonEngland, United Kingdom 53 US AQI2.1 times the WHO guideline
=1027BasildonEngland, United Kingdom 53 US AQI2.1 times the WHO guideline
=1027TullnLower Austria, Austria 53 US AQI2.1 times the WHO guideline▼100
=1027Altenburglast full day 10 OctThuringia, Germany 53 US AQI2.1 times the WHO guideline▼170
=1027RoubaixHauts-de-France, France 53 US AQI2.1 times the WHO guideline▼150
=1027RokycanyPlzeň Region, Czechia 53 US AQI2.1 times the WHO guideline
=1027HoustonTexas, United States 53 US AQI2.1 times the WHO guideline▼108
=1027San AntonioTexas, United States 53 US AQI2.1 times the WHO guideline▼107
=1027WestervilleOhio, United States 53 US AQI2.1 times the WHO guideline▼106
=1027South Lake TahoeCalifornia, United States 53 US AQI2.1 times the WHO guideline▼129
=1027MadrasOregon, United States 53 US AQI2.1 times the WHO guideline▼105
=1046TomiokaKumamoto, Japan 53 US AQI2.1 times the WHO guideline▼122
=1046KasaokaOkayama, Japan 53 US AQI2.1 times the WHO guideline▼121
=1046HigashiosakaOsaka, Japan 53 US AQI2.1 times the WHO guideline▼120
=1046HayashimaOkayama, Japan 53 US AQI2.1 times the WHO guideline▼140
=1046Liezenlast full day 24 SeptStyria, Austria 53 US AQI2.1 times the WHO guideline▼101
=1046TübingenBaden-Wurttemberg, Germany 53 US AQI2.1 times the WHO guideline▼135
=1046Munichlast full day 11 OctBavaria, Germany 53 US AQI2.1 times the WHO guideline▼134
=1046Ludwigslustlast full day 10 OctMecklenburg-Vorpommern, Germany 53 US AQI2.1 times the WHO guideline▼222
=1046Lindaulast full day 10 OctBavaria, Germany 53 US AQI2.1 times the WHO guideline▼157
=1046Bernau bei BerlinBrandenburg, Germany 53 US AQI2.1 times the WHO guideline▼154
=1046CalaisHauts-de-France, France 53 US AQI2.1 times the WHO guideline▼129
=1046KolárovoNitra Region, Slovakia 53 US AQI2.1 times the WHO guideline
=1046ZallaBasque Country, Spain 53 US AQI2.1 times the WHO guideline
=1046Nova GoricaUrban Municipality of Nova Gorica, Slovenia 53 US AQI2.1 times the WHO guideline▲21
=1046AugustaGeorgia, United States 53 US AQI2.1 times the WHO guideline▼112
=1046DearbornMichigan, United States 53 US AQI2.1 times the WHO guideline▼111
=1046AraoKumamoto, Japan 53 US AQI2.1 times the WHO guideline▼110
=1063Isaccealast full day 10 OctTulcea County, Romania 53 US AQI2.0 times the WHO guideline▼140
=1063Uekimachi-mōnoKumamoto, Japan 53 US AQI2.0 times the WHO guideline▼126
=1063ShidoKagawa, Japan 53 US AQI2.0 times the WHO guideline▼125
=1063SaseboNagasaki, Japan 53 US AQI2.0 times the WHO guideline▼124
=1063HigashinozoeHyōgo, Japan 53 US AQI2.0 times the WHO guideline▼123
=1063BeppuOita, Japan 53 US AQI2.0 times the WHO guideline▼122
=1063IshinomakiMiyagi, Japan 53 US AQI2.0 times the WHO guideline▼121
=1063MaidstoneEngland, United Kingdom 53 US AQI2.0 times the WHO guideline
=1063BadhoevedorpNorth Holland, The Netherlands 53 US AQI2.0 times the WHO guideline▼119
=1063TraunUpper Austria, Austria 53 US AQI2.0 times the WHO guideline▼60
=1063Sankt ValentinLower Austria, Austria 53 US AQI2.0 times the WHO guideline▼59
=1063Klagenfurt am WörtherseeCarinthia, Austria 53 US AQI2.0 times the WHO guideline▼57
=1063AmstettenLower Austria, Austria 53 US AQI2.0 times the WHO guideline▼56
=1063Weimarlast full day 10 OctThuringia, Germany 53 US AQI2.0 times the WHO guideline▼188
=1063KasselHesse, Germany 53 US AQI2.0 times the WHO guideline▼149
=1063Halstenbeklast full day 10 OctSchleswig-Holstein, Germany 53 US AQI2.0 times the WHO guideline▼147
=1063Burghausenlast full day 10 OctBavaria, Germany 53 US AQI2.0 times the WHO guideline▼111
=1063AvignonProvence-Alpes-Côte d'Azur, France 53 US AQI2.0 times the WHO guideline▲448
=1063SalernoCampania, Italy 53 US AQI2.0 times the WHO guideline
=1063BogotáBogota D.C., Colombia 53 US AQI2.0 times the WHO guideline
=1063ChattanoogaTennessee, United States 53 US AQI2.0 times the WHO guideline▼76
=1063WindcrestTexas, United States 53 US AQI2.0 times the WHO guideline▼107
=1063BeecherMichigan, United States 53 US AQI2.0 times the WHO guideline▼106
=1063SteubenvilleOhio, United States 53 US AQI2.0 times the WHO guideline▼105
=1063Baker CityOregon, United States 53 US AQI2.0 times the WHO guideline▼104
=1063WenatcheeWashington, United States 53 US AQI2.0 times the WHO guideline▼103
=1063HigashigōSaga, Japan 53 US AQI2.0 times the WHO guideline▼68
=1063Kogalast full day 11 OctFukuoka, Japan 53 US AQI2.0 times the WHO guideline▼102
=1063AsakuchiOkayama, Japan 53 US AQI2.0 times the WHO guideline▼101
=1092Naujoji AkmeneSiauliai, Lithuania 53 US AQI2.0 times the WHO guideline
=1092KeelungTaiwan, Taiwan 53 US AQI2.0 times the WHO guideline▼96
=1092KosongGangwon-do, South Korea 53 US AQI2.0 times the WHO guideline▼129
=1092ShimogamoOkayama, Japan 53 US AQI2.0 times the WHO guideline▼128
=1092Ōyanomachi-noboritateKumamoto, Japan 53 US AQI2.0 times the WHO guideline▼92
=1092MiyakonojōMiyazaki, Japan 53 US AQI2.0 times the WHO guideline▼127
=1092Kitakyushulast full day 11 OctFukuoka, Japan 53 US AQI2.0 times the WHO guideline▼125
=1092Rostocklast full day 10 OctMecklenburg-Vorpommern, Germany 53 US AQI2.0 times the WHO guideline▼238
=1092Neu-Ulmlast full day 10 OctBavaria, Germany 53 US AQI2.0 times the WHO guideline▼145

What stands behind each figure: Checked at 2+ sites One reference monitor Low-cost sensors About these marks

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), this year to 14 Oct 2026, 06:00 UTC: each city's mean of its daily means, cities measured on 70% or more of the days since 1 January (at least 14). Monitor data from national networks via OpenAQ and the publishers listed at smogrank.com/sources. smogrank.com/rankings?w=year. Ranked on low-cost sensors, with no reference monitor in the city: #2 Faisalabad, #3 Gujranwala and #6 Lahore. Some values from Sensor.Community, ODbL. Some readings from Department of Environment, Nepal; Vietnam's government monitors; Aurassure; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Umhverfisstofnun (Environment Agency of Iceland), no reuse terms published.

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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: Department of Environment, Nepal; Vietnam's government monitors; Aurassure; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Umhverfisstofnun (Environment Agency of Iceland), no reuse terms published (why we use them).