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.

=2083Thalelast full day 10 OctSaxony-Anhalt, Germany 44 US AQI1.6 times the WHO guideline▼339
=2083Sondershausenlast full day 10 OctThuringia, Germany 44 US AQI1.6 times the WHO guideline▼338
=2083Ratingenlast full day 10 OctNorth Rhine-Westphalia, Germany 44 US AQI1.6 times the WHO guideline▼386
=2083WexfordLeinster, Ireland 44 US AQI1.6 times the WHO guideline▼200
=2083Saint-MaloBrittany, France 44 US AQI1.6 times the WHO guideline
=2083RennesBrittany, France 44 US AQI1.6 times the WHO guideline▼240
=2083OrléansCentre-Val de Loire, France 44 US AQI1.6 times the WHO guideline▼239
=2083Mont-de-MarsanNew Aquitaine, France 44 US AQI1.6 times the WHO guideline▼197
=2083MontaubanOccitanie, France 44 US AQI1.6 times the WHO guideline
=2083JonageAuvergne-Rhône-Alpes, France 44 US AQI1.6 times the WHO guideline▼280
=2083CreilHauts-de-France, France 44 US AQI1.6 times the WHO guideline▼279
=2083CastresOccitanie, France 44 US AQI1.6 times the WHO guideline▼112
=2083Aix-en-ProvenceProvence-Alpes-Côte d'Azur, France 44 US AQI1.6 times the WHO guideline▼111
=2083Banská BystricaBanská Bystrica Region, Slovakia 44 US AQI1.6 times the WHO guideline
=2083Mosslast full day 14 SeptØstfold, Norway 44 US AQI1.6 times the WHO guideline
=2083AcariRio de Janeiro, Brazil 44 US AQI1.6 times the WHO guideline▼159
=2083PrichardAlabama, United States 44 US AQI1.6 times the WHO guideline▼194
=2083BearDelaware, United States 44 US AQI1.6 times the WHO guideline▼193
=2083NewarkDelaware, United States 44 US AQI1.6 times the WHO guideline▼192
=2083Bonita SpringsFlorida, United States 44 US AQI1.6 times the WHO guideline▼191
=2083Saint MatthewsKentucky, United States 44 US AQI1.6 times the WHO guideline▼190
=2083South LaurelMaryland, United States 44 US AQI1.6 times the WHO guideline▼233
=2083Lemaylast full day 5 OctMissouri, United States 44 US AQI1.6 times the WHO guideline▼188
=2083ClaytonNorth Carolina, United States 44 US AQI1.6 times the WHO guideline▼187
=2083AshburnVirginia, United States 44 US AQI1.6 times the WHO guideline▼186
=2083Iowa CityIowa, United States 44 US AQI1.6 times the WHO guideline▼185
=2083Jersey CityNew Jersey, United States 44 US AQI1.6 times the WHO guideline▼184
=2083State CollegePennsylvania, United States 44 US AQI1.6 times the WHO guideline▼183
=2083AnthonyNew Mexico, United States 44 US AQI1.6 times the WHO guideline▼268
=2083West JordanUtah, United States 44 US AQI1.6 times the WHO guideline▼181
=2083Val-de-ReuilNormandy, France 44 US AQI1.6 times the WHO guideline▼218
=2083KumanoMie, Japan 44 US AQI1.6 times the WHO guideline▼180
=2083YachiyoChiba, Japan 44 US AQI1.6 times the WHO guideline▼179
=2083HigashimatsushimaMiyagi, Japan 44 US AQI1.6 times the WHO guideline▼178
=2083NisshinAichi, Japan 44 US AQI1.6 times the WHO guideline▼177
=2083SadoNiigata, Japan 44 US AQI1.6 times the WHO guideline▼176
=2083NoboritoKanagawa, Japan 44 US AQI1.6 times the WHO guideline▼175
=2138Hualien CityTaiwan, Taiwan 43 US AQI1.6 times the WHO guideline▼229
=2138UrayasuChiba, Japan 43 US AQI1.6 times the WHO guideline▼228
=2138ShinshiroAichi, Japan 43 US AQI1.6 times the WHO guideline▼227
=2138ŌmeTokyo, Japan 43 US AQI1.6 times the WHO guideline▼226
=2138NanaoIshikawa, Japan 43 US AQI1.6 times the WHO guideline▼225
=2138Kameda-honchōNiigata, Japan 43 US AQI1.6 times the WHO guideline▼224
=2138ŌmihachimanShiga, Japan 43 US AQI1.6 times the WHO guideline▼223
=2138YachimataChiba, Japan 43 US AQI1.6 times the WHO guideline▼222
=2138TorideIbaraki, Japan 43 US AQI1.6 times the WHO guideline▼221
=2138MookaTochigi, Japan 43 US AQI1.6 times the WHO guideline▼300
=2138KesennumaMiyagi, Japan 43 US AQI1.6 times the WHO guideline▼220
=2138AomoriAomori, Japan 43 US AQI1.6 times the WHO guideline▼258
=2138TraralgonVictoria, Australia 43 US AQI1.6 times the WHO guideline▼219
=2138SaguntoValencia, Spain 43 US AQI1.6 times the WHO guideline
=2138PlymouthEngland, United Kingdom 43 US AQI1.6 times the WHO guideline
=2138GraysEngland, United Kingdom 43 US AQI1.6 times the WHO guideline
=2138DoncasterEngland, United Kingdom 43 US AQI1.6 times the WHO guideline
=2138OlpeNorth Rhine-Westphalia, Germany 43 US AQI1.6 times the WHO guideline
=2138Kahlalast full day 10 OctThuringia, Germany 43 US AQI1.6 times the WHO guideline▼337
=2138Esch-sur-AlzetteEsch-sur-Alzette, Luxembourg 43 US AQI1.6 times the WHO guideline▼256
=2138ReimsGrand Est, France 43 US AQI1.6 times the WHO guideline▼488
=2138CherbourgNormandy, France 43 US AQI1.6 times the WHO guideline▼250
=2138SarriaGalicia, Spain 43 US AQI1.6 times the WHO guideline
=2138Cangas del Narcealast full day 11 OctAsturias, Spain 43 US AQI1.6 times the WHO guideline
=2138ColumbiaMissouri, United States 43 US AQI1.6 times the WHO guideline▼213
=2138GulfportMississippi, United States 43 US AQI1.6 times the WHO guideline▼212
=2138WavelandMississippi, United States 43 US AQI1.6 times the WHO guideline▼211
=2138Toms RiverNew Jersey, United States 43 US AQI1.6 times the WHO guideline▼210
=2138LawtonOklahoma, United States 43 US AQI1.6 times the WHO guideline▼209
=2138SeabrookTexas, United States 43 US AQI1.6 times the WHO guideline▼207
=2138HarrisonburgVirginia, United States 43 US AQI1.6 times the WHO guideline▼206
=2138Saint PaulMinnesota, United States 43 US AQI1.6 times the WHO guideline▼204
=2138HermitagePennsylvania, United States 43 US AQI1.6 times the WHO guideline▼202
=2138MadisonWisconsin, United States 43 US AQI1.6 times the WHO guideline▼201
=2138OaklandCalifornia, United States 43 US AQI1.6 times the WHO guideline▼200
=2138Woodlandlast full day 17 SeptCalifornia, United States 43 US AQI1.6 times the WHO guideline▼199
=2138Yuba CityCalifornia, United States 43 US AQI1.6 times the WHO guideline▼198
=2138Airway HeightsWashington, United States 43 US AQI1.6 times the WHO guideline▼197
=2138ToppenishWashington, United States 43 US AQI1.6 times the WHO guideline▼196
=2138QuesnelBritish Columbia, Canada 43 US AQI1.6 times the WHO guideline▼195
=2138AsoKumamoto, Japan 43 US AQI1.6 times the WHO guideline▼194
=2138KikugawaShizuoka, Japan 43 US AQI1.6 times the WHO guideline▼146
=2138MotosuGifu, Japan 43 US AQI1.6 times the WHO guideline▼193
=2138SayamaOsaka, Japan 43 US AQI1.6 times the WHO guideline▼192
=2138BarakiChiba, Japan 43 US AQI1.6 times the WHO guideline▼191
=2138Minami-AlpsYamanashi, Japan 43 US AQI1.6 times the WHO guideline▼190
=2138IkiNagasaki, Japan 43 US AQI1.6 times the WHO guideline▼189
=2138SaikaiNagasaki, Japan 43 US AQI1.6 times the WHO guideline▼188
=2138KaminomaAichi, Japan 43 US AQI1.6 times the WHO guideline▼187
=2187TsurugaFukui, Japan 43 US AQI1.5 times the WHO guideline▼190
=2187TochigiTochigi, Japan 43 US AQI1.5 times the WHO guideline▼235
=2187ShizuokaShizuoka, Japan 43 US AQI1.5 times the WHO guideline▼234
=2187ŌtsukiYamanashi, Japan 43 US AQI1.5 times the WHO guideline▼233
=2187NiigataNiigata, Japan 43 US AQI1.5 times the WHO guideline▼232
=2187NakanojōGunma, Japan 43 US AQI1.5 times the WHO guideline▼231
=2187NaganoNagano, Japan 43 US AQI1.5 times the WHO guideline▼187
=2187Matsuelast full day 11 OctShimane, Japan 43 US AQI1.5 times the WHO guideline▼230
=2187KisarazuChiba, Japan 43 US AQI1.5 times the WHO guideline▼229
=2187KakegawaShizuoka, Japan 43 US AQI1.5 times the WHO guideline▼228
=2187IidaNagano, Japan 43 US AQI1.5 times the WHO guideline▼227
=2187Hamadalast full day 11 OctShimane, Japan 43 US AQI1.5 times the WHO guideline▼226
=2187AtamiShizuoka, Japan 43 US AQI1.5 times the WHO guideline▼225
=2187Newcastle upon TyneEngland, United Kingdom 43 US AQI1.5 times the WHO guideline

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).