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.

=1874VerdunGrand Est, France 46 US AQI1.7 times the WHO guideline
=1874SarcellesÎle-de-France, France 46 US AQI1.7 times the WHO guideline
=1874LormontNew Aquitaine, France 46 US AQI1.7 times the WHO guideline▼174
=1874CrollesAuvergne-Rhône-Alpes, France 46 US AQI1.7 times the WHO guideline▼28
=1874AnnemasseAuvergne-Rhône-Alpes, France 46 US AQI1.7 times the WHO guideline▼173
=1874RiedstadtHesse, Germany 46 US AQI1.7 times the WHO guideline▼172
=1874Le RobertMartinique, Martinique 46 US AQI1.7 times the WHO guideline▼265
=1874Fort-de-FranceMartinique, Martinique 46 US AQI1.7 times the WHO guideline▼264
=1874DecaturAlabama, United States 46 US AQI1.7 times the WHO guideline▼171
=1874GainesvilleGeorgia, United States 46 US AQI1.7 times the WHO guideline▼123
=1874HernandoMississippi, United States 46 US AQI1.7 times the WHO guideline▼169
=1874DentsvilleSouth Carolina, United States 46 US AQI1.7 times the WHO guideline▼168
=1874GreenvilleSouth Carolina, United States 46 US AQI1.7 times the WHO guideline▼167
=1874KnoxvilleTennessee, United States 46 US AQI1.7 times the WHO guideline▼166
=1874College StationTexas, United States 46 US AQI1.7 times the WHO guideline▼165
=1874SpringfieldVirginia, United States 46 US AQI1.7 times the WHO guideline▼163
=1874MuncieIndiana, United States 46 US AQI1.7 times the WHO guideline▼162
=1874ManisteeMichigan, United States 46 US AQI1.7 times the WHO guideline▼161
=1874EwingNew Jersey, United States 46 US AQI1.7 times the WHO guideline▼160
=1874NogalesArizona, United States 46 US AQI1.7 times the WHO guideline▼159
=1874Santa ClaritaCalifornia, United States 46 US AQI1.7 times the WHO guideline▼158
=1874TurlockCalifornia, United States 46 US AQI1.7 times the WHO guideline▼157
=1874OdessaTexas, United States 46 US AQI1.7 times the WHO guideline▼156
=1874MeadWashington, United States 46 US AQI1.7 times the WHO guideline▼210
=1874YakimaWashington, United States 46 US AQI1.7 times the WHO guideline▼155
=1874GuelphOntario, Canada 46 US AQI1.7 times the WHO guideline▼154
=1874NewmarketOntario, Canada 46 US AQI1.7 times the WHO guideline▼103
=1874MorouraSaga, Japan 46 US AQI1.7 times the WHO guideline▼153
=1874AzaminoKanagawa, Japan 46 US AQI1.7 times the WHO guideline▼152
=1874YameFukuoka, Japan 46 US AQI1.7 times the WHO guideline▼151
=1874KizugawaKyoto, Japan 46 US AQI1.7 times the WHO guideline▼150
=1932Yasugichōlast full day 11 OctShimane, Japan 46 US AQI1.6 times the WHO guideline▼207
=1932YanaiYamaguchi, Japan 46 US AQI1.6 times the WHO guideline▼206
=1932TondabayashichōOsaka, Japan 46 US AQI1.6 times the WHO guideline▼205
=1932TakinomiyaKagawa, Japan 46 US AQI1.6 times the WHO guideline▼204
=1932TajimiGifu, Japan 46 US AQI1.6 times the WHO guideline▼203
=1932SaikiOita, Japan 46 US AQI1.6 times the WHO guideline▼202
=1932ObitaNagasaki, Japan 46 US AQI1.6 times the WHO guideline▼201
=1932NumazuShizuoka, Japan 46 US AQI1.6 times the WHO guideline▼200
=1932Nara-shiNara, Japan 46 US AQI1.6 times the WHO guideline▼199
=1932NagasakiNagasaki, Japan 46 US AQI1.6 times the WHO guideline▼198
=1932MitaiMiyazaki, Japan 46 US AQI1.6 times the WHO guideline▼197
=1932KashiwaChiba, Japan 46 US AQI1.6 times the WHO guideline▼196
=1932KaminokawaTochigi, Japan 46 US AQI1.6 times the WHO guideline▼195
=1932GobōWakayama, Japan 46 US AQI1.6 times the WHO guideline▼194
=1932KimitsuChiba, Japan 46 US AQI1.6 times the WHO guideline▼193
=1932MiyakoIwate, Japan 46 US AQI1.6 times the WHO guideline▼192
=1932ChibaChiba, Japan 46 US AQI1.6 times the WHO guideline▼191
=1932ManzanaresCastille-La Mancha, Spain 46 US AQI1.6 times the WHO guideline
=1932RotherhamEngland, United Kingdom 46 US AQI1.6 times the WHO guideline
=1932BaselBasel-City, Switzerland 46 US AQI1.6 times the WHO guideline▼237
=1932NijmegenGelderland, The Netherlands 46 US AQI1.6 times the WHO guideline▼133
=1932StabroekFlanders, Belgium 46 US AQI1.6 times the WHO guideline▼190
=1932HasseltFlanders, Belgium 46 US AQI1.6 times the WHO guideline▼189
=1932BeerselFlanders, Belgium 46 US AQI1.6 times the WHO guideline▼489
=1932Trappenkamplast full day 10 OctSchleswig-Holstein, Germany 46 US AQI1.6 times the WHO guideline▼286
=1932OytenLower Saxony, Germany 46 US AQI1.6 times the WHO guideline▼234
=1932BremerhavenBremen, Germany 46 US AQI1.6 times the WHO guideline▼283
=1932TarbesOccitanie, France 46 US AQI1.6 times the WHO guideline▼47
=1932Montceau-les-MinesBourgogne-Franche-Comté, France 46 US AQI1.6 times the WHO guideline
=1932MontargisCentre-Val de Loire, France 46 US AQI1.6 times the WHO guideline▲127
=1932HernaniBasque Country, Spain 46 US AQI1.6 times the WHO guideline
=1932ClaymontDelaware, United States 46 US AQI1.6 times the WHO guideline▼183
=1932Ferry Passlast full day 7 OctFlorida, United States 46 US AQI1.6 times the WHO guideline▼182
=1932Baton RougeLouisiana, United States 46 US AQI1.6 times the WHO guideline▼179
=1932PrienLouisiana, United States 46 US AQI1.6 times the WHO guideline▼228
=1932ClevelandMississippi, United States 46 US AQI1.6 times the WHO guideline▼178
=1932ClemmonsNorth Carolina, United States 46 US AQI1.6 times the WHO guideline▼177
=1932PennsaukenNew Jersey, United States 46 US AQI1.6 times the WHO guideline▼176
=1932HendersonvilleTennessee, United States 46 US AQI1.6 times the WHO guideline▼175
=1932Jacksonlast full day 8 OctTennessee, United States 46 US AQI1.6 times the WHO guideline▼174
=1932GalvestonTexas, United States 46 US AQI1.6 times the WHO guideline▼222
=1932ChesapeakeVirginia, United States 46 US AQI1.6 times the WHO guideline▼173
=1932ClintonIowa, United States 46 US AQI1.6 times the WHO guideline▼172
=1932Winthrop HarborIllinois, United States 46 US AQI1.6 times the WHO guideline▼171
=1932HollandMichigan, United States 46 US AQI1.6 times the WHO guideline▼121
=1932MinneapolisMinnesota, United States 46 US AQI1.6 times the WHO guideline▼170
=1932ElizabethNew Jersey, United States 46 US AQI1.6 times the WHO guideline▼169
=1932JohnstownPennsylvania, United States 46 US AQI1.6 times the WHO guideline▼168
=1932MonessenPennsylvania, United States 46 US AQI1.6 times the WHO guideline▼167
=1932NorristownPennsylvania, United States 46 US AQI1.6 times the WHO guideline▼166
=1932AltoonaWisconsin, United States 46 US AQI1.6 times the WHO guideline▼165
=1932ChathamOntario, Canada 46 US AQI1.6 times the WHO guideline▼162
=1932KagaIshikawa, Japan 46 US AQI1.6 times the WHO guideline▼159
=1932YamatoKanagawa, Japan 46 US AQI1.6 times the WHO guideline▼158
=1932HigashikurumeTokyo, Japan 46 US AQI1.6 times the WHO guideline▼157
=1932FuchūTokyo, Japan 46 US AQI1.6 times the WHO guideline▼156
=1932KamagayaChiba, Japan 46 US AQI1.6 times the WHO guideline▼155
=1932YoshinogawaTokushima, Japan 46 US AQI1.6 times the WHO guideline▼154
=1932Unnanlast full day 11 OctShimane, Japan 46 US AQI1.6 times the WHO guideline▼153
=1991TaitungTaiwan, Taiwan 45 US AQI1.6 times the WHO guideline▼211
=1991ToyotaAichi, Japan 45 US AQI1.6 times the WHO guideline▼210
=1991ToyonakaOsaka, Japan 45 US AQI1.6 times the WHO guideline▼209
=1991TokorozawaSaitama, Japan 45 US AQI1.6 times the WHO guideline▼208
=1991ShimaMie, Japan 45 US AQI1.6 times the WHO guideline▼207
=1991SetoAichi, Japan 45 US AQI1.6 times the WHO guideline▼169
=1991SabaeFukui, Japan 45 US AQI1.6 times the WHO guideline▼168
=1991OdawaraKanagawa, Japan 45 US AQI1.6 times the WHO guideline▼166
=1991ObuseNagano, Japan 45 US AQI1.6 times the WHO guideline▼206
=1991MiyazuKyoto, Japan 45 US AQI1.6 times the WHO guideline▼205

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).