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.

=1190Klagenfurt am WörtherseeCarinthia, Austria 45 US AQI▼125
=1190EisenzickenBurgenland, Austria 45 US AQI▼124
=1190BeerselFlanders, Belgium 45 US AQI▲19
=1190Kaldenkirchenlast full day 10 OctNorth Rhine-Westphalia, Germany 45 US AQI
=1190IngolstadtBavaria, Germany 45 US AQI▼122
=1190ParisÎle-de-France, France 45 US AQI▼46
=1190GardanneProvence-Alpes-Côte d'Azur, France 45 US AQI
=1190ArlesProvence-Alpes-Côte d'Azur, France 45 US AQI▼152
=1190VeszprémVeszprém, Hungary 45 US AQI▼118
=1190PrievidzaTrenčín Region, Slovakia 45 US AQI▼117
=1190Nakło nad NoteciąKujawsko-Pomorskie, Poland 45 US AQI
=1190BogatyniaLower Silesia, Poland 45 US AQI
=1190Sondriolast full day 11 OctLombardy, Italy 45 US AQI
=1190CeljeUrban Municipality of Celje, Slovenia 45 US AQI▼115
=1190Upper AltonIllinois, United States 45 US AQI▼113
=1190Kansas CityKansas, United States 45 US AQI▼112
=1190College StationTexas, United States 45 US AQI▼75
=1190Timberwood ParkTexas, United States 45 US AQI▼146
=1190Calumet CityIllinois, United States 45 US AQI▼41
=1190Elk GroveCalifornia, United States 45 US AQI▼74
=1190Thousand OaksCalifornia, United States 45 US AQI▼145
=1190AsoKumamoto, Japan 45 US AQI▼109
=1190KinokawaWakayama, Japan 45 US AQI▼38
=1190YawatahamaEhime, Japan 45 US AQI▼108
=1190UkihaFukuoka, Japan 45 US AQI▼141
=1226AthensAttica, Greece 44 US AQI▼176
=1226ChuncheonGangwon-do, South Korea 44 US AQI▼103
=1226ShingūWakayama, Japan 44 US AQI▼37
=1226TakamatsuKagawa, Japan 44 US AQI▼99
=1226ShimonosekiYamaguchi, Japan 44 US AQI▼140
=1226ShimogamoOkayama, Japan 44 US AQI▼139
=1226ShibukawaGunma, Japan 44 US AQI▼71
=1226ShibataNiigata, Japan 44 US AQI▼98
=1226NakatsuOita, Japan 44 US AQI▼137
=1226MitaiMiyazaki, Japan 44 US AQI▼97
=1226KameyamaMie, Japan 44 US AQI▼31
=1226IsahayaNagasaki, Japan 44 US AQI▼95
=1226HiroshimaHiroshima, Japan 44 US AQI▼165
=1226IshinomakiMiyagi, Japan 44 US AQI▼94
=1226SingletonNew South Wales, Australia 44 US AQI▼133
=1226NewcastleNew South Wales, Australia 44 US AQI▼132
=1226Los BarriosAndalusia, Spain 44 US AQI
=1226UtrechtUtrecht, The Netherlands 44 US AQI▼93
=1226RotterdamSouth Holland, The Netherlands 44 US AQI▼63
=1226Neu-Ulmlast full day 10 OctBavaria, Germany 44 US AQI▼189
=1226Königs Wusterhausenlast full day 10 OctBrandenburg, Germany 44 US AQI▼86
=1226Dattelnlast full day 10 OctNorth Rhine-Westphalia, Germany 44 US AQI
=1226Arzberglast full day 10 OctBavaria, Germany 44 US AQI▼121
=1226MarseilleProvence-Alpes-Côte d'Azur, France 44 US AQI▲54
=1226San Luis de la Pazlast full day 11 OctGuanajuato, Mexico 44 US AQI▼217
=1226AthensGeorgia, United States 44 US AQI▼55
=1226Wood RiverIllinois, United States 44 US AQI▼114
=1226Valley StationKentucky, United States 44 US AQI▼79
=1226Lemaylast full day 5 OctMissouri, United States 44 US AQI▼113
=1226HernandoMississippi, United States 44 US AQI▼147
=1226Saint AndrewsSouth Carolina, United States 44 US AQI▼112
=1226HollandMichigan, United States 44 US AQI▼50
=1226OceanoCalifornia, United States 44 US AQI▼146
=1226LewistonIdaho, United States 44 US AQI▼211
=1226KaiapoiCanterbury, New Zealand 44 US AQI▼210
=1226GotōNagasaki, Japan 44 US AQI▼142
=1262AranyaprathetSa Kaeo, Thailand 44 US AQI▼75
=1262HwacheonGangwon-do, South Korea 44 US AQI▼140
=1262TanabeWakayama, Japan 44 US AQI▼71
=1262TakahashiOkayama, Japan 44 US AQI▼108
=1262KurashikiOkayama, Japan 44 US AQI▼105
=1262Kanzakimachi-kanzakiSaga, Japan 44 US AQI▼104
=1262HashimotoWakayama, Japan 44 US AQI▼65
=1262AlgecirasAndalusia, Spain 44 US AQI
=1262San Pawl il-BaħarSaint Paul’s Bay, Malta 44 US AQI▼198
=1262TilburgNorth Brabant, The Netherlands 44 US AQI▼167
=1262MedemblikNorth Holland, The Netherlands 44 US AQI▼128
=1262PerchtoldsdorfLower Austria, Austria 44 US AQI▼127
=1262RoeselareFlanders, Belgium 44 US AQI▼96
=1262AntwerpFlanders, Belgium 44 US AQI▼195
=1262Rostocklast full day 10 OctMecklenburg-Vorpommern, Germany 44 US AQI▼257
=1262Magdeburglast full day 10 OctSaxony-Anhalt, Germany 44 US AQI▼16
=1262Jüchenlast full day 10 OctNorth Rhine-Westphalia, Germany 44 US AQI
=1262Halstenbeklast full day 10 OctSchleswig-Holstein, Germany 44 US AQI
=1262Hagenlast full day 10 OctNorth Rhine-Westphalia, Germany 44 US AQI
=1262Elsterwerdalast full day 10 OctBrandenburg, Germany 44 US AQI▼192
=1262Altenburglast full day 10 OctThuringia, Germany 44 US AQI▼119
=1262EdenderryLeinster, Ireland 44 US AQI▼156
=1262HnúšťaBanská Bystrica Region, Slovakia 44 US AQI▼155
=1262Murska SobotaUrban Municipality of Murska Sobota, Slovenia 44 US AQI▼116
=1262KranjUrban Municipality of Kranj, Slovenia 44 US AQI▼92
=1262NogalesSonora, Mexico 44 US AQI▼152
=1262Warner RobinsGeorgia, United States 44 US AQI▼44
=1262GlenpoolOklahoma, United States 44 US AQI▼89
=1262Ponca CityOklahoma, United States 44 US AQI▼88
=1262BridgeviewIllinois, United States 44 US AQI▼5
=1262LivermoreCalifornia, United States 44 US AQI▼85
=1262EdmontonAlberta, Canada 44 US AQI▼82
=1262NiizaSaitama, Japan 44 US AQI▼81
=1262TakuSaga, Japan 44 US AQI▼36
=1262AridaWakayama, Japan 44 US AQI▼35
=1297VilniusVilnius, Lithuania 43 US AQI
=1297SekimachiGifu, Japan 43 US AQI▼31
=1297NakamuraKochi, Japan 43 US AQI▼65
=1297NagasakiNagasaki, Japan 43 US AQI▼141

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).