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.

=998KunwiGyeongsangbuk-do, South Korea 49 US AQI▼129
=998ToyotaAichi, Japan 49 US AQI▼23
=998SaseboNagasaki, Japan 49 US AQI▼93
=998HigashiosakaOsaka, Japan 49 US AQI▼91
=998SukayamaChiba, Japan 49 US AQI▼40
=998TimaruCanterbury, New Zealand 49 US AQI▼38
=998La Línea de la ConcepciónAndalusia, Spain 49 US AQI▼64
=998BredaNorth Brabant, The Netherlands 49 US AQI▼109
=998WeizStyria, Austria 49 US AQI▼108
=998TraunUpper Austria, Austria 49 US AQI▼87
=998Bruck an der MurStyria, Austria 49 US AQI▼107
=998NeubrandenburgMecklenburg-Vorpommern, Germany 49 US AQI▼177
=998Hamburglast full day 10 OctHamburg, Germany 49 US AQI▼127
=998Burghausenlast full day 10 OctBavaria, Germany 49 US AQI▼158
=998Liptovský MikulášŽilina Region, Slovakia 49 US AQI▼83
=998BratislavaBratislava Region, Slovakia 49 US AQI▼57
=998MerateLombardy, Italy 49 US AQI
=998GuaratinguetáSão Paulo, Brazil 49 US AQI▼12
=998IndianapolisIndiana, United States 49 US AQI▼54
=998Corpus ChristiTexas, United States 49 US AQI▼79
=998HoustonTexas, United States 49 US AQI▼28
=998Lake ElsinoreCalifornia, United States 49 US AQI▼134
=998MatsuuraNagasaki, Japan 49 US AQI▼97
=1024VelesVeles, North Macedonia 48 US AQI▼138
=1024JangheungJeollanam-do, South Korea 48 US AQI▼94
=1024YokkaichiMie, Japan 48 US AQI▼51
=1024TajimiGifu, Japan 48 US AQI▼28
=1024Kaseda-shirakameKagoshima, Japan 48 US AQI▼67
=1024GamagōriAichi, Japan 48 US AQI▼24
=1024ToowoombaQueensland, Australia 48 US AQI▼65
=1024WinterthurZurich, Switzerland 48 US AQI▲487
=1024AmstettenLower Austria, Austria 48 US AQI▼112
=1024Nuremberglast full day 10 OctBavaria, Germany 48 US AQI▼169
=1024Neustadt an der Donaulast full day 10 OctBavaria, Germany 48 US AQI▼132
=1024Ludwigshafen am Rheinlast full day 10 OctRheinland-Pfalz, Germany 48 US AQI▼202
=1024DunkirkHauts-de-France, France 48 US AQI▼85
=1024OščadnicaŽilina Region, Slovakia 48 US AQI▼61
=1024KościerzynaPomerania, Poland 48 US AQI▼18
=1024BiellaPiedmont, Italy 48 US AQI▼199
=1024Terre HauteIndiana, United States 48 US AQI▼129
=1024WichitaKansas, United States 48 US AQI▼56
=1024GlendoraCalifornia, United States 48 US AQI▼196
=1024El PasoTexas, United States 48 US AQI▼101
=1024Kogalast full day 11 OctFukuoka, Japan 48 US AQI▼159
=1024HigashihiroshimaHiroshima, Japan 48 US AQI▼100
=1046PhetchabunPhetchabun, Thailand 48 US AQI▼95
=1046ToyohashiAichi, Japan 48 US AQI▼24
=1046TamanoOkayama, Japan 48 US AQI▼93
=1046OnodaYamaguchi, Japan 48 US AQI▼92
=1046ŌmuraNagasaki, Japan 48 US AQI▼91
=1046InuyamaAichi, Japan 48 US AQI▼15
=1046AnjōAichi, Japan 48 US AQI▼12
=1046GranadaAndalusia, Spain 48 US AQI▼136
=1046BasildonEngland, United Kingdom 48 US AQI
=1046Würzburglast full day 10 OctBavaria, Germany 48 US AQI▼111
=1046Krefeldlast full day 10 OctNorth Rhine-Westphalia, Germany 48 US AQI
=1046Duisburglast full day 10 OctNorth Rhine-Westphalia, Germany 48 US AQI
=1046BudapestBudapest, Hungary 48 US AQI▼133
=1046MikulovSouth Moravian, Czechia 48 US AQI
=1046Gasteiz / VitoriaBasque Country, Spain 48 US AQI▼190
=1046PaarlWestern Cape, South Africa 48 US AQI▼103
=1046AtlantaGeorgia, United States 48 US AQI▼59
=1046AugustaGeorgia, United States 48 US AQI▼79
=1046Deer ParkTexas, United States 48 US AQI▼77
=1046WillowsCalifornia, United States 48 US AQI▼165
=1046SeogwipoJeju-do, South Korea 48 US AQI▼97
=1046ShikokuchūōEhime, Japan 48 US AQI▼144
=1068PhichitPhichit, Thailand 47 US AQI▼96
=1068NeietsuGangwon-do, South Korea 47 US AQI▼116
=1068Jeju CityJeju-do, South Korea 47 US AQI▼139
=1068YamagaKumamoto, Japan 47 US AQI▼94
=1068SuzukaMie, Japan 47 US AQI▼44
=1068SaikūMie, Japan 47 US AQI▼13
=1068Kan’onjichōKagawa, Japan 47 US AQI▼162
=1068Imarichō-kōSaga, Japan 47 US AQI▼70
=1068FukuroiShizuoka, Japan 47 US AQI▼67
=1068LiverpoolNew South Wales, Australia 47 US AQI▼135
=1068WelsUpper Austria, Austria 47 US AQI▼90
=1068Oberhausenlast full day 10 OctNorth Rhine-Westphalia, Germany 47 US AQI
=1068Münsterlast full day 10 OctNorth Rhine-Westphalia, Germany 47 US AQI
=1068Bottroplast full day 10 OctNorth Rhine-Westphalia, Germany 47 US AQI
=1068Chorvátsky Grob - Čierna VodaBratislava Region, Slovakia 47 US AQI▼152
=1068ZlínZlín, Czechia 47 US AQI
=1068JihlavaVysocina, Czechia 47 US AQI
=1068ElblągWarmia-Masuria, Poland 47 US AQI▼61
=1068LaivesTrentino-Alto Adige, Italy 47 US AQI▼104
=1068Ciudad Benito JuárezNuevo León, Mexico 47 US AQI▼102
=1068TallahasseeFlorida, United States 47 US AQI▲8
=1068EdinburgTexas, United States 47 US AQI▼123
=1068MissionTexas, United States 47 US AQI▼97
=1068AgouraCalifornia, United States 47 US AQI▼148
=1068Ben LomondCalifornia, United States 47 US AQI▼122
=1068BurbankCalifornia, United States 47 US AQI▼170
=1068El CajonCalifornia, United States 47 US AQI▼169
=1068LomitaCalifornia, United States 47 US AQI▼147
=1068ModestoCalifornia, United States 47 US AQI▼77
=1068PowayCalifornia, United States 47 US AQI▼168
=1068Santa ClaritaCalifornia, United States 47 US AQI▼146
=1068SunnysideWashington, United States 47 US AQI▼120
=1068InabeMie, Japan 47 US AQI▼22

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).