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.

=1297Kandalast full day 11 OctFukuoka, Japan 43 US AQI▼238
=1297KakamigaharaGifu, Japan 43 US AQI▲20
=1297HōryūjiNara, Japan 43 US AQI▼60
=1297IyoEhime, Japan 43 US AQI▼138
=1297MuswellbrookNew South Wales, Australia 43 US AQI▼137
=1297Ayrlast full day 5 OctQueensland, Australia 43 US AQI▼98
=1297AmoraSetúbal, Portugal 43 US AQI
=1297MelseleFlanders, Belgium 43 US AQI▼161
=1297GentFlanders, Belgium 43 US AQI▼160
=1297Weidenlast full day 10 OctBavaria, Germany 43 US AQI▼199
=1297Schöneichelast full day 10 OctBrandenburg, Germany 43 US AQI
=1297Greizlast full day 10 OctThuringia, Germany 43 US AQI▼156
=1297NancyGrand Est, France 43 US AQI▼83
=1297LilleHauts-de-France, France 43 US AQI▼152
=1297GetxoBasque Country, Spain 43 US AQI▼46
=1297AzpeitiaBasque Country, Spain 43 US AQI
=1297São José dos Camposlast full day 8 OctSão Paulo, Brazil 43 US AQI▼45
=1297PesqueríaNuevo León, Mexico 43 US AQI▼188
=1297HuntsvilleAlabama, United States 43 US AQI▼43
=1297JeffersonvilleIndiana, United States 43 US AQI▼78
=1297LouisvilleKentucky, United States 43 US AQI▼125
=1297SchrieverLouisiana, United States 43 US AQI▼4
=1297North CharlestonSouth Carolina, United States 43 US AQI▼122
=1297NashvilleTennessee, United States 43 US AQI▼76
=1297HelotesTexas, United States 43 US AQI▼149
=1297WheatonIllinois, United States 43 US AQI▼38
=1297StocktonCalifornia, United States 43 US AQI▼147
=1297NampaIdaho, United States 43 US AQI▼119
=1297White CenterWashington, United States 43 US AQI▼118
=1297CastlegarBritish Columbia, Canada 43 US AQI▼146
=1297Higashi-MatsuyamaSaitama, Japan 43 US AQI▼34
=1297ShonaiYamagata, Japan 43 US AQI▼115
=1333PopradPrešov Region, Slovakia 43 US AQI▼147
=1333TonoshōKagawa, Japan 43 US AQI▼104
=1333TakeharaHiroshima, Japan 43 US AQI▼141
=1333SumotoHyōgo, Japan 43 US AQI▼103
=1333SakaiOsaka, Japan 43 US AQI▼102
=1333MiharaHiroshima, Japan 43 US AQI▼139
=1333KishiwadaOsaka, Japan 43 US AQI▼99
=1333Kashihara-shiNara, Japan 43 US AQI▼18
=1333Kakogawachō-honmachiHyōgo, Japan 43 US AQI▼98
=1333HayashimaOkayama, Japan 43 US AQI▼95
=1333Fukui-shiFukui, Japan 43 US AQI▼94
=1333Ponggae-dongJeju-do, South Korea 43 US AQI▼93
=1333Toongabbie WestNew South Wales, Australia 43 US AQI▼241
=1333CarlisleEngland, United Kingdom 43 US AQI
=1333SchiedamSouth Holland, The Netherlands 43 US AQI▼171
=1333LunterenGelderland, The Netherlands 43 US AQI▼169
=1333SteyrUpper Austria, Austria 43 US AQI▼129
=1333Sankt PöltenLower Austria, Austria 43 US AQI▼168
=1333KlosterneuburgLower Austria, Austria 43 US AQI▼128
=1333Knokke-HeistFlanders, Belgium 43 US AQI▼126
=1333HouthalenFlanders, Belgium 43 US AQI▼125
=1333Trostberg an der Alzlast full day 10 OctBavaria, Germany 43 US AQI▼234
=1333Niederzierlast full day 10 OctNorth Rhine-Westphalia, Germany 43 US AQI
=1333MannheimBaden-Wurttemberg, Germany 43 US AQI▼230
=1333Emdenlast full day 10 OctLower Saxony, Germany 43 US AQI▼264
=1333Dessaulast full day 10 OctSaxony-Anhalt, Germany 43 US AQI▼85
=1333CottbusBrandenburg, Germany 43 US AQI▼229
=1333Bernau bei BerlinBrandenburg, Germany 43 US AQI▼191
=1333AvignonProvence-Alpes-Côte d'Azur, France 43 US AQI▲237
=1333HandlováTrenčín Region, Slovakia 43 US AQI▲144
=1333HodonínSouth Moravian, Czechia 43 US AQI
=1333ZaragozaAragon, Spain 43 US AQI▼259
=1333HernaniBasque Country, Spain 43 US AQI▼164
=1333Pachuca de SotoHidalgo, Mexico 43 US AQI▲58
=1333GadsdenAlabama, United States 43 US AQI▼43
=1333McAlesterOklahoma, United States 43 US AQI▼113
=1333Catañolast full day 8 OctCataño, Puerto Rico 43 US AQI▼320
=1333ConroeTexas, United States 43 US AQI▼111
=1333DavisCalifornia, United States 43 US AQI▼110
=1333Galtlast full day 7 OctCalifornia, United States 43 US AQI▼109
=1333TsuchiuraIbaraki, Japan 43 US AQI▼108
=1333MinokamoGifu, Japan 43 US AQI▲27
=1333SugaiKyoto, Japan 43 US AQI▼34
=1333AyaseKanagawa, Japan 43 US AQI▼69
=1333ShūnanYamaguchi, Japan 43 US AQI▼31
=1333Blankenfelde-Mahlowlast full day 10 OctBrandenburg, Germany 43 US AQI▼149
=1379IrákleionCrete, Greece 42 US AQI
=1379Piatra NeamţNeamț County, Romania 42 US AQI▼15
=1379SninaPrešov Region, Slovakia 42 US AQI▼194
=1379UbeYamaguchi, Japan 42 US AQI▼73
=1379Tottori-shiTottori, Japan 42 US AQI▼189
=1379TomiokaGunma, Japan 42 US AQI▼72
=1379TagawaFukuoka, Japan 42 US AQI▼186
=1379ShimaMie, Japan 42 US AQI▼13
=1379NagahamaShiga, Japan 42 US AQI▼112
=1379MarugameKagawa, Japan 42 US AQI▼146
=1379KyotoKyoto, Japan 42 US AQI▼67
=1379KudamatsuYamaguchi, Japan 42 US AQI▼66
=1379KawatanaNagasaki, Japan 42 US AQI▼111
=1379KainanWakayama, Japan 42 US AQI▼61
=1379ItoigawaNiigata, Japan 42 US AQI▼183
=1379AsakaSaitama, Japan 42 US AQI▼110
=1379TownsvilleQueensland, Australia 42 US AQI▼138
=1379JaénAndalusia, Spain 42 US AQI▼107
=1379ZwanenburgNorth Holland, The Netherlands 42 US AQI▼179
=1379RidderkerkSouth Holland, The Netherlands 42 US AQI▼283
=1379BreukelenUtrecht, The Netherlands 42 US AQI▼177
=1379StabroekFlanders, Belgium 42 US AQI▼173

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).