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.

=1679LuxembourgLuxembourg, Luxembourg 39 US AQI▼206
=1679Saint-QuentinHauts-de-France, France 39 US AQI▼110
=1679RouenNormandy, France 39 US AQI▲48
=1679Le HavreNormandy, France 39 US AQI▼154
=1679DouaiHauts-de-France, France 39 US AQI▼203
=1679SokolovCarlsbad Region, Czechia 39 US AQI
=1679PilsenPlzeň Region, Czechia 39 US AQI
=1679ZierbenaBasque Country, Spain 39 US AQI▼249
=1679TrbovljeMunicipality of Trbovlje, Slovenia 39 US AQI▼153
=1679AcariRio de Janeiro, Brazil 39 US AQI▼77
=1679ChanuteKansas, United States 39 US AQI▼106
=1679BeltonTexas, United States 39 US AQI▼148
=1679CarpinteriaCalifornia, United States 39 US AQI▼195
=1679ConcordCalifornia, United States 39 US AQI▼194
=1679Los BanosCalifornia, United States 39 US AQI▼71
=1679San FranciscoCalifornia, United States 39 US AQI▼100
=1679TakashimaShiga, Japan 39 US AQI▼67
=1679KumanoMie, Japan 39 US AQI▲17
=1679JōetsuNiigata, Japan 39 US AQI▼66
=1679SaitamaSaitama, Japan 39 US AQI▼94
=1679KizugawaKyoto, Japan 39 US AQI▼63
=1722YamaguchiYamaguchi, Japan 38 US AQI▼102
=1722OkayamaOkayama, Japan 38 US AQI▼135
=1722KumagayaSaitama, Japan 38 US AQI▼134
=1722IwataShizuoka, Japan 38 US AQI▼53
=1722GobōWakayama, Japan 38 US AQI▼95
=1722FujiShizuoka, Japan 38 US AQI▼93
=1722KariyaHyōgo, Japan 38 US AQI▼130
=1722AkiKochi, Japan 38 US AQI▼91
=1722UwajimaEhime, Japan 38 US AQI▼129
=1722SakuraChiba, Japan 38 US AQI▼128
=1722WollongongNew South Wales, Australia 38 US AQI▼306
=1722New LambtonNew South Wales, Australia 38 US AQI▼126
=1722LondonEngland, United Kingdom 38 US AQI▼256
=1722GrangemouthScotland, United Kingdom 38 US AQI
=1722KreuzlingenThurgau, Switzerland 38 US AQI▼209
=1722NijverdalOverijssel, The Netherlands 38 US AQI▼208
=1722GenemuidenOverijssel, The Netherlands 38 US AQI▼162
=1722VeurneFlanders, Belgium 38 US AQI▼205
=1722Zeitzlast full day 10 OctSaxony-Anhalt, Germany 38 US AQI▼85
=1722TübingenBaden-Wurttemberg, Germany 38 US AQI▼202
=1722Kölnlast full day 10 OctNorth Rhine-Westphalia, Germany 38 US AQI
=1722Koblenzlast full day 10 OctRheinland-Pfalz, Germany 38 US AQI▼299
=1722KehlBaden-Wurttemberg, Germany 38 US AQI▼251
=1722Jorklast full day 10 OctLower Saxony, Germany 38 US AQI▼298
=1722Biberach an der RißBaden-Wurttemberg, Germany 38 US AQI▼200
=1722MâconBourgogne-Franche-Comté, France 38 US AQI
=1722MalmesburyWestern Cape, South Africa 38 US AQI▼151
=1722CayenneGuyane, French Guiana 38 US AQI▼195
=1722OcalaFlorida, United States 38 US AQI▼119
=1722SandersvilleGeorgia, United States 38 US AQI▼39
=1722JerseyvilleIllinois, United States 38 US AQI▼193
=1722New AlbanyIndiana, United States 38 US AQI▼150
=1722Saint MatthewsKentucky, United States 38 US AQI▼148
=1722SomersetKentucky, United States 38 US AQI▼74
=1722MorrisvilleNorth Carolina, United States 38 US AQI▼117
=1722GalvestonTexas, United States 38 US AQI▼146
=1722EvanstonIllinois, United States 38 US AQI▲19
=1722NapervilleIllinois, United States 38 US AQI▼72
=1722MuncieIndiana, United States 38 US AQI▼116
=1722OregonOhio, United States 38 US AQI▼69
=1722LincolnCalifornia, United States 38 US AQI▼115
=1722Simi ValleyCalifornia, United States 38 US AQI▼282
=1722OdessaTexas, United States 38 US AQI▼142
=1722Columbia FallsMontana, United States 38 US AQI▼112
=1722KamloopsBritish Columbia, Canada 38 US AQI▼185
=1722Red DeerAlberta, Canada 38 US AQI▼139
=1722RangioraCanterbury, New Zealand 38 US AQI▼363
=1769KozániWest Macedonia, Greece 38 US AQI▼228
=1769YoukaichiShiga, Japan 38 US AQI▼150
=1769YaeHiroshima, Japan 38 US AQI▼148
=1769UjiKyoto, Japan 38 US AQI▼70
=1769Ueno-ebisumachiMie, Japan 38 US AQI▼69
=1769NumataGunma, Japan 38 US AQI▼103
=1769MikuniFukui, Japan 38 US AQI▼146
=1769Kamojimachō-jōgejimaTokushima, Japan 38 US AQI▼144
=1769IkomaNara, Japan 38 US AQI▼99
=1769ChigasakiKanagawa, Japan 38 US AQI▼139
=1769KumaEhime, Japan 38 US AQI▼137
=1769Natori-shiMiyagi, Japan 38 US AQI▼174
=1769HirosakiAomori, Japan 38 US AQI▼136
=1769BrisbaneQueensland, Australia 38 US AQI▼56
=1769SaguntoValencia, Spain 38 US AQI▼391
=1769ManzanaresCastille-La Mancha, Spain 38 US AQI▼259
=1769BunyolaBalearic Islands, Spain 38 US AQI
=1769Wuppertallast full day 10 OctNorth Rhine-Westphalia, Germany 38 US AQI
=1769SulzbachHesse, Germany 38 US AQI▼172
=1769Schwedt (Oder)Brandenburg, Germany 38 US AQI▼348
=1769PforzheimBaden-Wurttemberg, Germany 38 US AQI▼300
=1769Otterndorflast full day 10 OctLower Saxony, Germany 38 US AQI▼299
=1769Hannoverlast full day 10 OctLower Saxony, Germany 38 US AQI▼203
=1769Güstrowlast full day 10 OctMecklenburg-Vorpommern, Germany 38 US AQI▼343
=1769FriedrichshafenBaden-Wurttemberg, Germany 38 US AQI▼297
=1769Bielefeldlast full day 10 OctNorth Rhine-Westphalia, Germany 38 US AQI
=1769AalenBaden-Wurttemberg, Germany 38 US AQI▼245
=1769SarcellesÎle-de-France, France 38 US AQI
=1769ReimsGrand Est, France 38 US AQI▼295
=1769Fos-sur-MerProvence-Alpes-Côte d'Azur, France 38 US AQI
=1769BelfortBourgogne-Franche-Comté, France 38 US AQI
=1769TrebinjeSrpska, Bosnia and Herzegovina 38 US AQI▼36

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).