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.

=1578Bützowlast full day 10 OctMecklenburg-Vorpommern, Germany 40 US AQI▼365
=1578Bernburglast full day 10 OctSaxony-Anhalt, Germany 40 US AQI▼55
=1578StrasbourgGrand Est, France 40 US AQI▼151
=1578MulhouseGrand Est, France 40 US AQI▼103
=1578MarignaneProvence-Alpes-Côte d'Azur, France 40 US AQI▼150
=1578La GardeProvence-Alpes-Côte d'Azur, France 40 US AQI
=1578KolárovoNitra Region, Slovakia 40 US AQI▼149
=1578Zacatepec de HidalgoMorelos, Mexico 40 US AQI▼189
=1578SavannahGeorgia, United States 40 US AQI▼99
=1578SpringfieldMissouri, United States 40 US AQI▼145
=1578Park RidgeIllinois, United States 40 US AQI▼44
=1578PeoriaIllinois, United States 40 US AQI▼43
=1578FlorinCalifornia, United States 40 US AQI▼182
=1578King CityCalifornia, United States 40 US AQI▼139
=1578Meridianlast full day 7 OctIdaho, United States 40 US AQI▼137
=1578MillcreekUtah, United States 40 US AQI▼222
=1578AuburnWashington, United States 40 US AQI▼135
=1578Barra da TijucaRio de Janeiro, Brazil 40 US AQI▼89
=1578La Providencia Siglo XXIHidalgo, Mexico 40 US AQI▼178
=1578TsushimaNagasaki, Japan 40 US AQI▼86
=1578MunakataFukuoka, Japan 40 US AQI▼130
=1578MineYamaguchi, Japan 40 US AQI▼84
=1578FuefukiYamanashi, Japan 40 US AQI▼38
=1624AkashiHyōgo, Japan 39 US AQI▼81
=1624YokotaTokyo, Japan 39 US AQI▼128
=1624TsuruokaYamagata, Japan 39 US AQI▼127
=1624TosuSaga, Japan 39 US AQI▼126
=1624TakatsukiOsaka, Japan 39 US AQI▼124
=1624ShinshiroAichi, Japan 39 US AQI▼2
=1624Shimo-tsumaIbaraki, Japan 39 US AQI▼168
=1624SandachōHyōgo, Japan 39 US AQI▼122
=1624ŌtsuShiga, Japan 39 US AQI▼79
=1624NōgataFukuoka, Japan 39 US AQI▼166
=1624Nara-shiNara, Japan 39 US AQI▼77
=1624KoshigayaSaitama, Japan 39 US AQI▼120
=1624KawaguchiTokushima, Japan 39 US AQI▼75
=1624KanbaraShizuoka, Japan 39 US AQI▼73
=1624IwakuniYamaguchi, Japan 39 US AQI▼119
=1624HōfuYamaguchi, Japan 39 US AQI▼118
=1624HikoneShiga, Japan 39 US AQI▼71
=1624IwanumaMiyagi, Japan 39 US AQI▼209
=1624ScunthorpeEngland, United Kingdom 39 US AQI
=1624ZaanstadNorth Holland, The Netherlands 39 US AQI▼245
=1624JenbachTyrol, Austria 39 US AQI▼156
=1624Groß-EnzersdorfLower Austria, Austria 39 US AQI▼62
=1624GenkFlanders, Belgium 39 US AQI▼204
=1624ErtveldeFlanders, Belgium 39 US AQI▼106
=1624Walsrodelast full day 10 OctLower Saxony, Germany 39 US AQI▼297
=1624Unnalast full day 10 OctNorth Rhine-Westphalia, Germany 39 US AQI
=1624Trierlast full day 10 OctRheinland-Pfalz, Germany 39 US AQI▼380
=1624Kempten (Allgäu)last full day 10 OctBavaria, Germany 39 US AQI▼241
=1624HeilbronnBaden-Wurttemberg, Germany 39 US AQI▼239
=1624Brandenburg an der HavelBrandenburg, Germany 39 US AQI▼238
=1624Ansbachlast full day 10 OctBavaria, Germany 39 US AQI▼237
=1624Fontaine-lès-DijonBourgogne-Franche-Comté, France 39 US AQI
=1624Aix-en-ProvenceProvence-Alpes-Côte d'Azur, France 39 US AQI▲57
=1624Aachenlast full day 10 OctNorth Rhine-Westphalia, Germany 39 US AQI
=1624PrichardAlabama, United States 39 US AQI▲21
=1624GulfportMississippi, United States 39 US AQI▼49
=1624CharlotteNorth Carolina, United States 39 US AQI▼94
=1624FayettevilleNorth Carolina, United States 39 US AQI▼143
=1624BrownsvilleTexas, United States 39 US AQI▼142
=1624Port ArthurTexas, United States 39 US AQI▼189
=1624Charlestonlast full day 10 OctWest Virginia, United States 39 US AQI▼92
=1624Fort WayneIndiana, United States 39 US AQI▼47
=1624GoletaCalifornia, United States 39 US AQI▲68
=1624VictorvilleCalifornia, United States 39 US AQI▼226
=1624GreshamOregon, United States 39 US AQI▼182
=1624TacomaWashington, United States 39 US AQI▼138
=1624Prince GeorgeBritish Columbia, Canada 39 US AQI▼137
=1624QuesnelBritish Columbia, Canada 39 US AQI▼42
=1624VernonBritish Columbia, Canada 39 US AQI▼136
=1624KaizuGifu, Japan 39 US AQI▼40
=1624SennanOsaka, Japan 39 US AQI▼86
=1624Midwaylast full day 6 OctFlorida, United States 39 US AQI▼134
=1624Osternienburger Landlast full day 10 OctSaxony-Anhalt, Germany 39 US AQI▼9
=1624WakasugiFukuoka, Japan 39 US AQI▼133
=1624YameFukuoka, Japan 39 US AQI▼131
=1679VratsaVratsa, Bulgaria 39 US AQI
=1679YangjuGyeonggi-do, South Korea 39 US AQI▼137
=1679SōkaSaitama, Japan 39 US AQI▼178
=1679SakadoSaitama, Japan 39 US AQI▼135
=1679NishiwakiHyōgo, Japan 39 US AQI▼133
=1679KōtariKyoto, Japan 39 US AQI▼131
=1679Kodamachō-kodamaminamiSaitama, Japan 39 US AQI▼90
=1679KaratsuSaga, Japan 39 US AQI▼129
=1679InoKochi, Japan 39 US AQI▼127
=1679HachiōjiTokyo, Japan 39 US AQI▼172
=1679ChitoseHokkaido, Japan 39 US AQI▼125
=1679RockhamptonQueensland, Australia 39 US AQI▼481
=1679SalzburgSalzburg, Austria 39 US AQI▼212
=1679InnsbruckTyrol, Austria 39 US AQI▼118
=1679Hainburg an der DonauLower Austria, Austria 39 US AQI▼163
=1679LiègeWallonia, Belgium 39 US AQI▲40
=1679GrimbergenFlanders, Belgium 39 US AQI▼260
=1679DammeFlanders, Belgium 39 US AQI▼160
=1679Weißenfelslast full day 10 OctSaxony-Anhalt, Germany 39 US AQI▼116
=1679Lingenlast full day 10 OctLower Saxony, Germany 39 US AQI▼257
=1679BremenBremen, Germany 39 US AQI▼158
=1679Bad Kreuznachlast full day 10 OctRheinland-Pfalz, Germany 39 US AQI▼347

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).