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.

=1092NeuenhagenBrandenburg, Germany 53 US AQI2.0 times the WHO guideline
=1092LubnjowBrandenburg, Germany 53 US AQI2.0 times the WHO guideline▼179
=1092KarlsruheBaden-Wurttemberg, Germany 53 US AQI2.0 times the WHO guideline▼144
=1092Greizlast full day 10 OctThuringia, Germany 53 US AQI2.0 times the WHO guideline▼202
=1092Bottroplast full day 10 OctNorth Rhine-Westphalia, Germany 53 US AQI2.0 times the WHO guideline▼201
=1092Augsburglast full day 10 OctBavaria, Germany 53 US AQI2.0 times the WHO guideline▼159
=1092Le HavreNormandy, France 53 US AQI2.0 times the WHO guideline▲219
=1092AostaAosta Valley, Italy 53 US AQI2.0 times the WHO guideline
=1092KranjUrban Municipality of Kranj, Slovenia 53 US AQI2.0 times the WHO guideline▲3
=1092Attnang-PuchheimUpper Austria, Austria 53 US AQI2.0 times the WHO guideline▼75
=1092CayenneGuyane, French Guiana 53 US AQI2.0 times the WHO guideline▼138
=1092NogalesSonora, Mexico 53 US AQI2.0 times the WHO guideline▼137
=1092SpringdaleArkansas, United States 53 US AQI2.0 times the WHO guideline▼107
=1092TulsaOklahoma, United States 53 US AQI2.0 times the WHO guideline▼106
=1092Calumet CityIllinois, United States 53 US AQI2.0 times the WHO guideline▼104
=1092LincolnwoodIllinois, United States 53 US AQI2.0 times the WHO guideline▼103
=1092Oak LawnIllinois, United States 53 US AQI2.0 times the WHO guideline▼102
=1092Lincoln ParkMichigan, United States 53 US AQI2.0 times the WHO guideline▼101
=1092West MifflinPennsylvania, United States 53 US AQI2.0 times the WHO guideline▼100
=1092MatsuuraNagasaki, Japan 53 US AQI2.0 times the WHO guideline▼98
=1121KhalándrionAttica, Greece 53 US AQI2.0 times the WHO guideline
=1121AthensAttica, Greece 53 US AQI2.0 times the WHO guideline
=1121TenriNara, Japan 53 US AQI2.0 times the WHO guideline▼124
=1121MinatoWakayama, Japan 53 US AQI2.0 times the WHO guideline▼123
=1121Nyūzenlast full day 22 SeptToyama, Japan 53 US AQI2.0 times the WHO guideline▼122
=1121MarugameKagawa, Japan 53 US AQI2.0 times the WHO guideline▼120
=1121KureHiroshima, Japan 53 US AQI2.0 times the WHO guideline▼155
=1121AmagasakiHyōgo, Japan 53 US AQI2.0 times the WHO guideline▼119
=1121MedemblikNorth Holland, The Netherlands 53 US AQI2.0 times the WHO guideline▼152
=1121KlosterneuburgLower Austria, Austria 53 US AQI2.0 times the WHO guideline▼116
=1121Westerlandlast full day 10 OctSchleswig-Holstein, Germany 53 US AQI2.0 times the WHO guideline
=1121StuttgartBaden-Wurttemberg, Germany 53 US AQI2.0 times the WHO guideline▼151
=1121Münsterlast full day 10 OctNorth Rhine-Westphalia, Germany 53 US AQI2.0 times the WHO guideline▼245
=1121IngolstadtBavaria, Germany 53 US AQI2.0 times the WHO guideline▼144
=1121PassyAuvergne-Rhône-Alpes, France 53 US AQI2.0 times the WHO guideline
=1121ContesProvence-Alpes-Côte d'Azur, France 53 US AQI2.0 times the WHO guideline▼106
=1121CuencaCastille-La Mancha, Spain 53 US AQI2.0 times the WHO guideline
=1121LaivesTrentino-Alto Adige, Italy 53 US AQI2.0 times the WHO guideline
=1121Taubatélast full day 8 OctSão Paulo, Brazil 53 US AQI2.0 times the WHO guideline▼103
=1121Columbia CityIndiana, United States 53 US AQI2.0 times the WHO guideline▼102
=1121Grand RapidsMichigan, United States 53 US AQI2.0 times the WHO guideline▼101
=1121AnaheimCalifornia, United States 53 US AQI2.0 times the WHO guideline▼128
=1121Osternienburger Landlast full day 10 OctSaxony-Anhalt, Germany 53 US AQI2.0 times the WHO guideline▼221
=1144DimitrovgradHaskovo, Bulgaria 52 US AQI2.0 times the WHO guideline▼123
=1144ZentsujichóKagawa, Japan 52 US AQI2.0 times the WHO guideline▼96
=1144SōjaOkayama, Japan 52 US AQI2.0 times the WHO guideline▼122
=1144Shimo-tsumaIbaraki, Japan 52 US AQI2.0 times the WHO guideline▼121
=1144ŌzuKumamoto, Japan 52 US AQI2.0 times the WHO guideline▼120
=1144KariyaAichi, Japan 52 US AQI2.0 times the WHO guideline▼89
=1144San RoqueAndalusia, Spain 52 US AQI2.0 times the WHO guideline
=1144Lorcalast full day 11 OctMurcia, Spain 52 US AQI2.0 times the WHO guideline
=1144LuganoTicino, Switzerland 52 US AQI2.0 times the WHO guideline▼235
=1144LienzTyrol, Austria 52 US AQI2.0 times the WHO guideline▼25
=1144Hainburg an der DonauLower Austria, Austria 52 US AQI2.0 times the WHO guideline▼118
=1144SchwerinMecklenburg-Vorpommern, Germany 52 US AQI2.0 times the WHO guideline▼291
=1144Geralast full day 10 OctThuringia, Germany 52 US AQI2.0 times the WHO guideline▼213
=1144FriedrichshafenBaden-Wurttemberg, Germany 52 US AQI2.0 times the WHO guideline▼111
=1144StrasbourgGrand Est, France 52 US AQI2.0 times the WHO guideline▼130
=1144LunévilleGrand Est, France 52 US AQI2.0 times the WHO guideline▼160
=1144ValdostaGeorgia, United States 52 US AQI2.0 times the WHO guideline▼109
=1144WichitaKansas, United States 52 US AQI2.0 times the WHO guideline▼108
=1144FlatwoodsKentucky, United States 52 US AQI2.0 times the WHO guideline▼107
=1144PasadenaTexas, United States 52 US AQI2.0 times the WHO guideline▼106
=1144Fort WayneIndiana, United States 52 US AQI2.0 times the WHO guideline▼105
=1144ClovisCalifornia, United States 52 US AQI2.0 times the WHO guideline▼104
=1144PortervilleCalifornia, United States 52 US AQI2.0 times the WHO guideline▼103
=1144LewistonIdaho, United States 52 US AQI2.0 times the WHO guideline▼102
=1144KaniGifu, Japan 52 US AQI2.0 times the WHO guideline▼100
=1144KotōKumamoto, Japan 52 US AQI2.0 times the WHO guideline▼99
=1144LiberpolisCounty of Osijek-Baranja, Croatia 52 US AQI2.0 times the WHO guideline
=1171VarnaVarna, Bulgaria 52 US AQI2.0 times the WHO guideline▼124
=1171YawataKyoto, Japan 52 US AQI2.0 times the WHO guideline▼122
=1171Toyamalast full day 22 SeptToyama, Japan 52 US AQI2.0 times the WHO guideline▼121
=1171TamanaKumamoto, Japan 52 US AQI2.0 times the WHO guideline▼120
=1171SusakiKochi, Japan 52 US AQI2.0 times the WHO guideline▼119
=1171ŌtakeHiroshima, Japan 52 US AQI2.0 times the WHO guideline▼118
=1171NobeokaMiyazaki, Japan 52 US AQI2.0 times the WHO guideline▼117
=1171KumamotoKumamoto, Japan 52 US AQI2.0 times the WHO guideline▼90
=1171Kandalast full day 11 OctFukuoka, Japan 52 US AQI2.0 times the WHO guideline▼115
=1171IwadeWakayama, Japan 52 US AQI2.0 times the WHO guideline▼114
=1171ItoigawaNiigata, Japan 52 US AQI2.0 times the WHO guideline▼113
=1171Imarichō-kōSaga, Japan 52 US AQI2.0 times the WHO guideline▼112
=1171MatsuyamaEhime, Japan 52 US AQI2.0 times the WHO guideline▼111
=1171ValenciaValencia, Spain 52 US AQI2.0 times the WHO guideline
=1171's-GravenzandeSouth Holland, The Netherlands 52 US AQI2.0 times the WHO guideline▼228
=1171The HagueSouth Holland, The Netherlands 52 US AQI2.0 times the WHO guideline▼56
=1171EindhovenNorth Brabant, The Netherlands 52 US AQI2.0 times the WHO guideline
=1171WelsUpper Austria, Austria 52 US AQI2.0 times the WHO guideline▼54
=1171JenbachTyrol, Austria 52 US AQI2.0 times the WHO guideline▼51
=1171Würzburglast full day 10 OctBavaria, Germany 52 US AQI2.0 times the WHO guideline▼110
=1171Wittingenlast full day 30 SeptLower Saxony, Germany 52 US AQI2.0 times the WHO guideline▼109
=1171StrausbergBrandenburg, Germany 52 US AQI2.0 times the WHO guideline▼200
=1171Schöneichelast full day 10 OctBrandenburg, Germany 52 US AQI2.0 times the WHO guideline▼198
=1171Nuremberglast full day 10 OctBavaria, Germany 52 US AQI2.0 times the WHO guideline▼141
=1171Nordhausenlast full day 10 OctThuringia, Germany 52 US AQI2.0 times the WHO guideline▼243
=1171Neustadt an der Donaulast full day 10 OctBavaria, Germany 52 US AQI2.0 times the WHO guideline▼108
=1171LudwigsburgBaden-Wurttemberg, Germany 52 US AQI2.0 times the WHO guideline▼161
=1171LampertheimHesse, Germany 52 US AQI2.0 times the WHO guideline▼160
=1171Krefeldlast full day 10 OctNorth Rhine-Westphalia, Germany 52 US AQI2.0 times the WHO guideline▼195
=1171Jorklast full day 10 OctLower Saxony, Germany 52 US AQI2.0 times the WHO guideline▼256

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), 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.

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: 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).