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.

=2160Fort DodgeIowa, United States 33 US AQI▼196
=2160NorthbrookIllinois, United States 33 US AQI▼107
=2160YoungstownOhio, United States 33 US AQI▼146
=2160WaukeshaWisconsin, United States 33 US AQI▼103
=2160YumaArizona, United States 33 US AQI▼237
=2160ParadiseCalifornia, United States 33 US AQI▼235
=2160ReddingCalifornia, United States 33 US AQI▼282
=2160Baker CityOregon, United States 33 US AQI▼233
=2160MoranbahQueensland, Australia 33 US AQI▼186
=2160Logan CityQueensland, Australia 33 US AQI▼49
=2160Sunshine CoastQueensland, Australia 33 US AQI▼92
=2160TatsunoHyōgo, Japan 33 US AQI▼179
=2160Unnanlast full day 11 OctShimane, Japan 33 US AQI▼178
=2214Cernicalast full day 10 OctIlfov, Romania 33 US AQI▲83
=2214SuwałkiPodlasie, Poland 33 US AQI▼597
=2214OwaseMie, Japan 33 US AQI▼53
=2214OdawaraKanagawa, Japan 33 US AQI▼189
=2214ObuseNagano, Japan 33 US AQI▼100
=2214NiimiOkayama, Japan 33 US AQI▼225
=2214MinanoSaitama, Japan 33 US AQI▼142
=2214MatsutōIshikawa, Japan 33 US AQI▼224
=2214KakegawaShizuoka, Japan 33 US AQI▼95
=2214HadanoKanagawa, Japan 33 US AQI▼187
=2214FujisawaKanagawa, Japan 33 US AQI▼185
=2214NaritaChiba, Japan 33 US AQI▼219
=2214KōriyamaFukushima, Japan 33 US AQI▼181
=2214Coffs HarbourNew South Wales, Australia 33 US AQI▼88
=2214CorroiosSetúbal, Portugal 33 US AQI
=2214HooEngland, United Kingdom 33 US AQI
=2214KollumFriesland, The Netherlands 33 US AQI▼272
=2214WiesbadenHesse, Germany 33 US AQI▼137
=2214Soestlast full day 10 OctNorth Rhine-Westphalia, Germany 33 US AQI
=2214Salzgitterlast full day 10 OctLower Saxony, Germany 33 US AQI▼266
=2214Hildesheimlast full day 10 OctLower Saxony, Germany 33 US AQI▼264
=2214FreiburgBaden-Wurttemberg, Germany 33 US AQI▼263
=2214NantesPays de la Loire, France 33 US AQI
=2214LunelOccitanie, France 33 US AQI
=2214HarfleurNormandy, France 33 US AQI▼175
=2214DreuxCentre-Val de Loire, France 33 US AQI▼211
=2214CaenNormandy, France 33 US AQI▼127
=2214AmiensHauts-de-France, France 33 US AQI▼348
=2214AvellinoCampania, Italy 33 US AQI
=2214AshlandKentucky, United States 33 US AQI▼169
=2214ArnoldMissouri, United States 33 US AQI▼208
=2214DurhamNorth Carolina, United States 33 US AQI▼167
=2214GreensboroNorth Carolina, United States 33 US AQI▼206
=2214HickoryNorth Carolina, United States 33 US AQI▼166
=2214Roanoke RapidsNorth Carolina, United States 33 US AQI▼205
=2214YorkPennsylvania, United States 33 US AQI▼165
=2214ColumbiaTennessee, United States 33 US AQI▼164
=2214SeabrookTexas, United States 33 US AQI▼203
=2214Cedar RapidsIowa, United States 33 US AQI▼120
=2214AndersonIndiana, United States 33 US AQI▼160
=2214South BendIndiana, United States 33 US AQI▼159
=2214SunnyvaleCalifornia, United States 33 US AQI▲298
=2214SocorroTexas, United States 33 US AQI▼242
=2214West JordanUtah, United States 33 US AQI▼286
=2214ParklandWashington, United States 33 US AQI▼154
=2214SōsaChiba, Japan 33 US AQI▼194
=2214ŌsakiMiyagi, Japan 33 US AQI▼149
=2214MinamiuonumaNiigata, Japan 33 US AQI▼148
=2214Tannum SandsQueensland, Australia 33 US AQI▼56
=2214Albion Park RailNew South Wales, Australia 33 US AQI▼328
=2264SevlievoGabrovo, Bulgaria 32 US AQI▼243
=2264GrevenáWest Macedonia, Greece 32 US AQI▼281
=2264ShironeNiigata, Japan 32 US AQI▼240
=2264ShimodaShizuoka, Japan 32 US AQI▼193
=2264SaikuboGunma, Japan 32 US AQI▼104
=2264Ōdachō-ōdalast full day 11 OctShimane, Japan 32 US AQI▼276
=2264NaganoNagano, Japan 32 US AQI▼148
=2264MatsumotoNagano, Japan 32 US AQI▼102
=2264MaizuruKyoto, Japan 32 US AQI▼238
=2264ŌmihachimanShiga, Japan 32 US AQI▼101
=2264AtamiShizuoka, Japan 32 US AQI▼191
=2264YonezawaYamagata, Japan 32 US AQI▼234
=2264YokoshibaChiba, Japan 32 US AQI▼233
=2264HachinoheAomori, Japan 32 US AQI▼190
=2264GladstoneQueensland, Australia 32 US AQI▼139
=2264CampillosAndalusia, Spain 32 US AQI▼706
=2264RotherhamEngland, United Kingdom 32 US AQI
=2264Wilhelmshavenlast full day 10 OctLower Saxony, Germany 32 US AQI▼361
=2264Villingen-SchwenningenBaden-Wurttemberg, Germany 32 US AQI▼318
=2264Suhllast full day 10 OctThuringia, Germany 32 US AQI▼230
=2264Elsenfeldlast full day 10 OctBavaria, Germany 32 US AQI▼312
=2264BremerhavenBremen, Germany 32 US AQI▼228
=2264Barthlast full day 10 OctMecklenburg-Vorpommern, Germany 32 US AQI▼227
=2264WaterfordMunster, Ireland 32 US AQI▼226
=2264EnnisMunster, Ireland 32 US AQI▼310
=2264MarmandeNew Aquitaine, France 32 US AQI
=2264JonageAuvergne-Rhône-Alpes, France 32 US AQI▼178
=2264HaguenauGrand Est, France 32 US AQI
=2264ÉvreuxNormandy, France 32 US AQI▼127
=2264Biograd na MoruZadar, Croatia 32 US AQI
=2264Fort SmithArkansas, United States 32 US AQI▼259
=2264Fort LauderdaleFlorida, United States 32 US AQI▼172
=2264MiamiFlorida, United States 32 US AQI▼221
=2264HazardKentucky, United States 32 US AQI▼122
=2264ClaytonNorth Carolina, United States 32 US AQI▼257
=2264RaleighNorth Carolina, United States 32 US AQI▼171
=2264DyersburgTennessee, United States 32 US AQI▼213

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).