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.

=1991Masudalast full day 11 OctShimane, Japan 45 US AQI1.6 times the WHO guideline▼204
=1991MachidaTokyo, Japan 45 US AQI1.6 times the WHO guideline▼203
=1991KawagoeSaitama, Japan 45 US AQI1.6 times the WHO guideline▼202
=1991KasukabeSaitama, Japan 45 US AQI1.6 times the WHO guideline▼201
=1991InoKochi, Japan 45 US AQI1.6 times the WHO guideline▼200
=1991HakuiIshikawa, Japan 45 US AQI1.6 times the WHO guideline▼199
=1991HadanoKanagawa, Japan 45 US AQI1.6 times the WHO guideline▼158
=1991FurukawamenNagasaki, Japan 45 US AQI1.6 times the WHO guideline▼198
=1991SayamaSaitama, Japan 45 US AQI1.6 times the WHO guideline▼197
=1991SakamotoMiyagi, Japan 45 US AQI1.6 times the WHO guideline▼196
=1991IchiharaChiba, Japan 45 US AQI1.6 times the WHO guideline▼195
=1991HachinoheAomori, Japan 45 US AQI1.6 times the WHO guideline▼194
=1991Kingston upon HullEngland, United Kingdom 45 US AQI1.6 times the WHO guideline
=1991Soestlast full day 10 OctNorth Rhine-Westphalia, Germany 45 US AQI1.6 times the WHO guideline▼392
=1991MetzGrand Est, France 45 US AQI1.6 times the WHO guideline▼244
=1991Fos-sur-MerProvence-Alpes-Côte d'Azur, France 45 US AQI1.6 times the WHO guideline
=1991GetxoBasque Country, Spain 45 US AQI1.6 times the WHO guideline
=1991AzpeitiaBasque Country, Spain 45 US AQI1.6 times the WHO guideline
=1991PorsgrunnTelemark, Norway 45 US AQI1.6 times the WHO guideline
=1991BessemerAlabama, United States 45 US AQI1.6 times the WHO guideline▼186
=1991Venice Gardenslast full day 11 OctFlorida, United States 45 US AQI1.6 times the WHO guideline▼185
=1991DecaturIllinois, United States 45 US AQI1.6 times the WHO guideline▼184
=1991BloomingtonIndiana, United States 45 US AQI1.6 times the WHO guideline▼183
=1991SomersetKentucky, United States 45 US AQI1.6 times the WHO guideline▼239
=1991Saint JosephMissouri, United States 45 US AQI1.6 times the WHO guideline▼182
=1991BeltonTexas, United States 45 US AQI1.6 times the WHO guideline▼181
=1991DublinOhio, United States 45 US AQI1.6 times the WHO guideline▼179
=1991Alta SierraCalifornia, United States 45 US AQI1.6 times the WHO guideline▼223
=1991MantecaCalifornia, United States 45 US AQI1.6 times the WHO guideline▼178
=1991ModestoCalifornia, United States 45 US AQI1.6 times the WHO guideline▼177
=1991Walla WallaWashington, United States 45 US AQI1.6 times the WHO guideline▼222
=1991KelownaBritish Columbia, Canada 45 US AQI1.6 times the WHO guideline▼175
=1991OakvilleOntario, Canada 45 US AQI1.6 times the WHO guideline▼174
=1991WaterdownOntario, Canada 45 US AQI1.6 times the WHO guideline▼173
=1991L'Ancienne-LoretteQuebec, Canada 45 US AQI1.6 times the WHO guideline▼219
=1991MinokamoGifu, Japan 45 US AQI1.6 times the WHO guideline▼123
=1991SennanOsaka, Japan 45 US AQI1.6 times the WHO guideline▼172
=1991Barra da TijucaRio de Janeiro, Brazil 45 US AQI1.6 times the WHO guideline▼171
=2039RostusaMavrovo and Rostuša, North Macedonia 44 US AQI1.6 times the WHO guideline▼218
=2039YanagawaFukuoka, Japan 44 US AQI1.6 times the WHO guideline▼170
=2039ŌtsuShiga, Japan 44 US AQI1.6 times the WHO guideline▼215
=2039Ōdachō-ōdalast full day 11 OctShimane, Japan 44 US AQI1.6 times the WHO guideline▼213
=2039ObamaFukui, Japan 44 US AQI1.6 times the WHO guideline▼212
=2039KomatsuIshikawa, Japan 44 US AQI1.6 times the WHO guideline▼211
=2039KitahamaShiga, Japan 44 US AQI1.6 times the WHO guideline▼210
=2039KamakuraKanagawa, Japan 44 US AQI1.6 times the WHO guideline▼209
=2039IseharaKanagawa, Japan 44 US AQI1.6 times the WHO guideline▼208
=2039HiratsukaKanagawa, Japan 44 US AQI1.6 times the WHO guideline▼207
=2039GotembaShizuoka, Japan 44 US AQI1.6 times the WHO guideline▼205
=2039AnjōAichi, Japan 44 US AQI1.6 times the WHO guideline▼204
=2039ShinjōYamagata, Japan 44 US AQI1.6 times the WHO guideline▼203
=2039Ōuchilast full day 8 OctMiyagi, Japan 44 US AQI1.6 times the WHO guideline▼202
=2039Toongabbie WestNew South Wales, Australia 44 US AQI1.6 times the WHO guideline▼199
=2039MuswellbrookNew South Wales, Australia 44 US AQI1.6 times the WHO guideline▼198
=2039GranadaAndalusia, Spain 44 US AQI1.6 times the WHO guideline
=2039ManchesterEngland, United Kingdom 44 US AQI1.6 times the WHO guideline▼241
=2039Sinnersdorflast full day 10 OctNorth Rhine-Westphalia, Germany 44 US AQI1.6 times the WHO guideline▼343
=2039Hattingenlast full day 10 OctNorth Rhine-Westphalia, Germany 44 US AQI1.6 times the WHO guideline▼340
=2039ToulouseOccitanie, France 44 US AQI1.6 times the WHO guideline▼155
=2039NîmesOccitanie, France 44 US AQI1.6 times the WHO guideline▼194
=2039ArrasHauts-de-France, France 44 US AQI1.6 times the WHO guideline
=2039Aachenlast full day 10 OctNorth Rhine-Westphalia, Germany 44 US AQI1.6 times the WHO guideline▼386
=2039JasperIndiana, United States 44 US AQI1.6 times the WHO guideline▼192
=2039New AlbanyIndiana, United States 44 US AQI1.6 times the WHO guideline▼191
=2039OlatheKansas, United States 44 US AQI1.6 times the WHO guideline▼190
=2039Hunt ValleyMaryland, United States 44 US AQI1.6 times the WHO guideline▼145
=2039Kennett SquarePennsylvania, United States 44 US AQI1.6 times the WHO guideline▼188
=2039AthensTennessee, United States 44 US AQI1.6 times the WHO guideline▼187
=2039KaufmanTexas, United States 44 US AQI1.6 times the WHO guideline▼186
=2039CharlottesvilleVirginia, United States 44 US AQI1.6 times the WHO guideline▼185
=2039Charlestonlast full day 10 OctWest Virginia, United States 44 US AQI1.6 times the WHO guideline▼184
=2039Fort DodgeIowa, United States 44 US AQI1.6 times the WHO guideline▼183
=2039BurnsvilleMinnesota, United States 44 US AQI1.6 times the WHO guideline▼182
=2039BethlehemPennsylvania, United States 44 US AQI1.6 times the WHO guideline▼181
=2039CanonsburgPennsylvania, United States 44 US AQI1.6 times the WHO guideline▼180
=2039GreensburgPennsylvania, United States 44 US AQI1.6 times the WHO guideline▼179
=2039Jefferson HillsPennsylvania, United States 44 US AQI1.6 times the WHO guideline▼178
=2039PhoenixArizona, United States 44 US AQI1.6 times the WHO guideline▼177
=2039PowayCalifornia, United States 44 US AQI1.6 times the WHO guideline▼176
=2039StocktonCalifornia, United States 44 US AQI1.6 times the WHO guideline▼175
=2039BandōIbaraki, Japan 44 US AQI1.6 times the WHO guideline▼173
=2039InashikiIbaraki, Japan 44 US AQI1.6 times the WHO guideline▼172
=2083VratsaVratsa, Bulgaria 44 US AQI1.6 times the WHO guideline
=2083YaitaTochigi, Japan 44 US AQI1.6 times the WHO guideline▼213
=2083NagaokaNiigata, Japan 44 US AQI1.6 times the WHO guideline▼212
=2083MinanoSaitama, Japan 44 US AQI1.6 times the WHO guideline▼211
=2083Kaseda-shirakameKagoshima, Japan 44 US AQI1.6 times the WHO guideline▼210
=2083KanumaTochigi, Japan 44 US AQI1.6 times the WHO guideline▼209
=2083Gōtsuchōlast full day 11 OctShimane, Japan 44 US AQI1.6 times the WHO guideline▼208
=2083FujisawaKanagawa, Japan 44 US AQI1.6 times the WHO guideline▼207
=2083YotsukaidōChiba, Japan 44 US AQI1.6 times the WHO guideline▼206
=2083Tagajō-shiMiyagi, Japan 44 US AQI1.6 times the WHO guideline▼205
=2083HigashineYamagata, Japan 44 US AQI1.6 times the WHO guideline▼204
=2083MuroranHokkaido, Japan 44 US AQI1.6 times the WHO guideline▼244
=2083TuggeranongAustralian Capital Territory, Australia 44 US AQI1.6 times the WHO guideline▼202
=2083UtielValencia, Spain 44 US AQI1.6 times the WHO guideline
=2083Caravacalast full day 11 OctMurcia, Spain 44 US AQI1.6 times the WHO guideline
=2083SheffieldEngland, United Kingdom 44 US AQI1.6 times the WHO guideline
=2083ReutteTyrol, Austria 44 US AQI1.6 times the WHO guideline▼119
=2083MolFlanders, Belgium 44 US AQI1.6 times the WHO guideline▼241

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).