All 2,894 cities by PM2.5, last 7 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.

Hide the 297 cities with only 1–2 sensors

These cities have only one or two low-cost sensors, and one cheap unit can read well off, so they take no rank. They sit at their place by value, marked –, and every ranked city keeps its number.

=650AcariRio de Janeiro, Brazil 54 US AQI▼7
=650MonroeLouisiana, United States 54 US AQI▼47
not rankedMadisonAlabama, United States 54 US AQI
not rankedFriscoTexas, United States 54 US AQI
not rankedAlbertvilleAlabama, United States 54 US AQI
=664UlsanUlsan, South Korea 54 US AQI▼14
=664OnodaYamaguchi, Japan 54 US AQI▲45
=664AgeoSaitama, Japan 54 US AQI▲115
=664AsakaSaitama, Japan 54 US AQI▲92
=664Valašské MeziříčíZlín, Czechia 54 US AQI▼78
=664BydgoszczKujawsko-Pomorskie, Poland 54 US AQI▼140
=664Texarkanalast full day 11 OctTexas, United States 54 US AQI▲122
=664San DiegoCalifornia, United States 54 US AQI▲32
not rankedClarksvilleIndiana, United States 54 US AQI
not rankedArlington HeightsIllinois, United States 54 US AQI
not rankedMilpitasCalifornia, United States 54 US AQI
=672AsprópyrgosAttica, Greece 53 US AQI▼48
=672Uekimachi-mōnoKumamoto, Japan 53 US AQI▲33
=672SekimachiGifu, Japan 53 US AQI▲206
=672ŌtakeHiroshima, Japan 53 US AQI▲61
=672KofuYamanashi, Japan 53 US AQI▲123
=672KawaguchiSaitama, Japan 53 US AQI▲83
=672KanbaraShizuoka, Japan 53 US AQI▲15
=672HiratsukaKanagawa, Japan 53 US AQI▲16
=672HigashiosakaOsaka, Japan 53 US AQI▲17
=672HamamatsuShizuoka, Japan 53 US AQI▲165
=672GrazStyria, Austria 53 US AQI▼211
=672EsztergomKomárom-Esztergom, Hungary 53 US AQI▼188
=672OščadnicaŽilina Region, Slovakia 53 US AQI▼87
=672BerounCentral Bohemia, Czechia 53 US AQI▼84
=672WyomingMichigan, United States 53 US AQI▼10
not rankedBignonaZiguinchor, Senegal 53 US AQI
not rankedClevelandTennessee, United States 53 US AQI
=687WarsawMazovia, Poland 53 US AQI▼208
=687ChanthaburiChanthaburi, Thailand 53 US AQI▼53
=687HwacheonGangwon-do, South Korea 53 US AQI▼52
=687TamanaKumamoto, Japan 53 US AQI▲44
=687SakadoSaitama, Japan 53 US AQI▲67
=687SagaSaga, Japan 53 US AQI▼2
=687NakanojōGunma, Japan 53 US AQI▲231
=687KameyamaMie, Japan 53 US AQI▲148
=687IidaNagano, Japan 53 US AQI▲237
=687KladnoCentral Bohemia, Czechia 53 US AQI▼100
=687MantuaLombardy, Italy 53 US AQI
=687JundiaíSão Paulo, Brazil 53 US AQI▼123
=687WichitaKansas, United States 53 US AQI▼26
=687YamanashiYamanashi, Japan 53 US AQI▲80
not rankedWaukeeIowa, United States 53 US AQI
=701TaitungTaiwan, Taiwan 53 US AQI▲149
=701YangjuGyeonggi-do, South Korea 53 US AQI▲278
=701UtoKumamoto, Japan 53 US AQI▲29
=701ŌzuKumamoto, Japan 53 US AQI▲7
=701NumataGunma, Japan 53 US AQI▲179
=701NodaChiba, Japan 53 US AQI▲92
=701KashimaSaga, Japan 53 US AQI▲36
=701IwadeWakayama, Japan 53 US AQI▲75
=701HayashimaOkayama, Japan 53 US AQI▲76
=701FukuokaFukuoka, Japan 53 US AQI▲37
=701ChigasakiKanagawa, Japan 53 US AQI▲137
=701AcerraCampania, Italy 53 US AQI▼311
=701PaarlWestern Cape, South Africa 53 US AQI▼22
=701SpringdaleArkansas, United States 53 US AQI▼42
=701HattiesburgMississippi, United States 53 US AQI▼71
=701MatsuuraNagasaki, Japan 53 US AQI▲64
=701IgaMie, Japan 53 US AQI▲209
=718HonmachiKumamoto, Japan 53 US AQI▼14
=718YaeHiroshima, Japan 53 US AQI▲135
=718ŌmuraNagasaki, Japan 53 US AQI▲16
=718KiryūGunma, Japan 53 US AQI▲164
=718IchinomiyaAichi, Japan 53 US AQI▲167
=718HiroshimaHiroshima, Japan 53 US AQI▼6
=718HachiōjiTokyo, Japan 53 US AQI▲94
=718FujiShizuoka, Japan 53 US AQI▲60
=718PécsBaranya, Hungary 53 US AQI▼226
=718Minami-AlpsYamanashi, Japan 53 US AQI▲112
not rankedBowling GreenOhio, United States 53 US AQI
not rankedBoltonOntario, Canada 53 US AQI
=728ChaniáCrete, Greece 53 US AQI▼224
=728BraşovBrașov County, Romania 53 US AQI▼103
=728KimhaeGyeongsangnam-do, South Korea 53 US AQI▲23
=728ShibataNiigata, Japan 53 US AQI▼22
=728MorohongōSaitama, Japan 53 US AQI▲127
=728ZnojmoSouth Moravian, Czechia 53 US AQI▼86
=728TřinecMoravian-Silesian Region, Czechia 53 US AQI▲92
=728BrzegOpole Voivodeship, Poland 53 US AQI▼9
=728MontgomeryAlabama, United States 53 US AQI▲171
=728Granite CityIllinois, United States 53 US AQI▼6
=728ColusaCalifornia, United States 53 US AQI▼138
=728RichmondCalifornia, United States 53 US AQI▼106
not rankedKrálovo PoleSouth Moravian, Czechia 53 US AQI
=740NeietsuGangwon-do, South Korea 52 US AQI▼38
=740JumunjinGangwon-do, South Korea 52 US AQI▲12
=740TakeharaHiroshima, Japan 52 US AQI▲69
=740MinatoWakayama, Japan 52 US AQI▲70
=740SanoTochigi, Japan 52 US AQI▲139
=740KawatanaNagasaki, Japan 52 US AQI▲35
=740HannōSaitama, Japan 52 US AQI▲146
=740KimitsuChiba, Japan 52 US AQI▲147
=740IchinosekiIwate, Japan 52 US AQI▲74
=740HuelvaAndalusia, Spain 52 US AQI

What stands behind each figure: Checked at 2+ sites One reference monitor Low-cost sensors 1–2 sensors, not ranked About these marks

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 7 days to 14 Oct 2026, 06:00 UTC: each city's mean of its daily means, cities measured on 5 or more of the 7 days. Monitor data from national networks via OpenAQ and the publishers listed at smogrank.com/sources. smogrank.com/rankings?w=7d. Ranked on low-cost sensors, with no reference monitor in the city: #1 Kuala Lumpur, #3 Dhaka, #4 Faisalabad, #5 Kasur, #6 Gujranwala, #7 Lahore, #8 Peshawar, #9 Multan and #10 Jakarta. Some readings from Vietnam's government monitors; Uzhydromet (Uzbekistan's Hydrometeorological Service); 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 readings: Vietnam's government monitors; Uzhydromet (Uzbekistan's Hydrometeorological Service); 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).