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.

not rankedVillanuevaCortés Department, Honduras 60 US AQI
=388MagongTaiwan, Taiwan 59 US AQI▲16
=388SokchoGangwon-do, South Korea 59 US AQI▲20
=388TokonameAichi, Japan 59 US AQI▲61
=388FresnoCalifornia, United States 59 US AQI▼62
=388TulareCalifornia, United States 59 US AQI▼7
=388HadongGyeongsangnam-do, South Korea 59 US AQI▼2
=394AcharnésAttica, Greece 59 US AQI▲7
=394LamphunLamphun, Thailand 59 US AQI▲19
=394UttaraditUttaradit, Thailand 59 US AQI▲38
=394MiryangGyeongsangnam-do, South Korea 59 US AQI▲35
=394KariyaAichi, Japan 59 US AQI▲47
=394Laem ChabangChon Buri, Thailand 59 US AQI▼35
=394ZvolenBanská Bystrica Region, Slovakia 59 US AQI▼105
=394MortaraLombardy, Italy 59 US AQI▼104
=394San Francisco De BorjaLima region, Peru 59 US AQI
=403XizhouTaiwan, Taiwan 59 US AQI▲155
=403SantyokuGangwon-do, South Korea 59 US AQI▼50
=403SevillaAndalusia, Spain 59 US AQI
=403Celayalast full day 11 OctGuanajuato, Mexico 59 US AQI▼12
=403YeongamJeollanam-do, South Korea 59 US AQI▼3
=408PruszkówMazovia, Poland 59 US AQI▼86
=408Kamphaeng PhetKamphaeng Phet, Thailand 59 US AQI▲6
=408MungyeongGyeongsangbuk-do, South Korea 59 US AQI▲9
=408TokiGifu, Japan 59 US AQI▲75
=408OkazakiAichi, Japan 59 US AQI▲60
=408San Pedro SulaCortés Department, Honduras 59 US AQI▼54
=414HumennéPrešov Region, Slovakia 59 US AQI▼128
=414Nong ChokBangkok, Thailand 59 US AQI▲19
=414Medina EstatesGreater Accra, Ghana 59 US AQI
=414TlaquepaqueJalisco, Mexico 59 US AQI▼43
=414VinovoPiedmont, Italy 59 US AQI▼132
=414TaoyuanTaiwan, Taiwan 59 US AQI▲152
not rankedBan RatsadaPhuket, Thailand 59 US AQI
=420RevúcaBanská Bystrica Region, Slovakia 58 US AQI▼99
=420Chiang MaiChiang Mai, Thailand 58 US AQI▼5
=420KaniGifu, Japan 58 US AQI▲107
=420TōkaiAichi, Japan 58 US AQI▲57
not rankedSpišská Nová VesKošice Region, Slovakia 58 US AQI
not rankedSaginawTexas, United States 58 US AQI
=424TaipeiTaiwan, Taiwan 58 US AQI▲153
=424Prescottlast full day 11 OctArizona, United States 58 US AQI▲12
not rankedVelenjeUrban Municipality of Velenje, Slovenia 58 US AQI
=426Vranov nad TopľouPrešov Region, Slovakia 58 US AQI▼151
=426GimcheonGyeongsangbuk-do, South Korea 58 US AQI▼8
=426ImsilJeollabuk-do, South Korea 58 US AQI▲14
=426ToyohashiAichi, Japan 58 US AQI▲82
=426ŽarnovicaBanská Bystrica Region, Slovakia 58 US AQI▼86
=426DallasTexas, United States 58 US AQI▼41
=426Jurupa ValleyCalifornia, United States 58 US AQI▼46
=426New Taipei CityTaipei, Taiwan 58 US AQI▲183
not rankedConcordMissouri, United States 58 US AQI
=434StarachowiceŚwiętokrzyskie, Poland 58 US AQI▼47
=434ChumphonChumphon, Thailand 58 US AQI▼68
=434Ubon RatchathaniUbon Ratchathani, Thailand 58 US AQI▲26
=434PhraePhrae, Thailand 58 US AQI▲32
=434YecheonGyeongsangbuk-do, South Korea 58 US AQI▲18
=434Yangp'yŏngGyeonggi-do, South Korea 58 US AQI▲4
=434PortoPorto, Portugal 58 US AQI▼89
=434Moravská Třeboválast full day 11 OctPardubice Region, Czechia 58 US AQI▼58
=442ShulinTaipei, Taiwan 58 US AQI▲136
=442YeongjuGyeongsangbuk-do, South Korea 58 US AQI▼20
=442GangneungGangwon-do, South Korea 58 US AQI▼3
=442Duque de CaxiasRio de Janeiro, Brazil 58 US AQI▲54
=442River OaksTexas, United States 58 US AQI▼78
=442MatsusakaMie, Japan 58 US AQI▲61
=448CenturionGauteng, South Africa 58 US AQI▼51
=448Sing BuriSing Buri, Thailand 58 US AQI▲104
=448Nakhon NayokNakhon Nayok, Thailand 58 US AQI▼32
=448GyōdaSaitama, Japan 58 US AQI▲53
=448BailénAndalusia, Spain 58 US AQI
=448ItaquaquecetubaSão Paulo, Brazil 58 US AQI▼85
not rankedHrazdanKotayk, Armenia 58 US AQI
=454PhetchabunPhetchabun, Thailand 57 US AQI▲62
=454PohangGyeongsangbuk-do, South Korea 57 US AQI▼8
=454ŌmutaFukuoka, Japan 57 US AQI▼1
=454NishioAichi, Japan 57 US AQI▲75
=454InuyamaAichi, Japan 57 US AQI▲100
=454ChiryūAichi, Japan 57 US AQI▲91
=454FukushimaFukushima, Japan 57 US AQI
=454BresciaLombardy, Italy 57 US AQI
=454KamisuIbaraki, Japan 57 US AQI▲33
not rankedVsetínZlín, Czechia 57 US AQI
=463KuryeJeollanam-do, South Korea 57 US AQI▼16
=463HandaAichi, Japan 57 US AQI▲81
=463Jastrzębie ZdrójSilesia, Poland 57 US AQI▲59
=463PueblaPuebla, Mexico 57 US AQI
not rankedPoděbradyCentral Bohemia, Czechia 57 US AQI
=467RzeszówSubcarpathia, Poland 57 US AQI▼72
=467ThembisaGauteng, South Africa 57 US AQI▼2
=467ChangwonGyeongsangnam-do, South Korea 57 US AQI▲14
=467PřerovOlomouc Region, Czechia 57 US AQI▼43
=467WrocławLower Silesia, Poland 57 US AQI▼36
=467WłocławekKujawsko-Pomorskie, Poland 57 US AQI▼58
=467Little RockArkansas, United States 57 US AQI▲8
=467HigashigōSaga, Japan 57 US AQI▲33
=475RadomMazovia, Poland 57 US AQI▼49
=475YilanTaiwan, Taiwan 57 US AQI▲253
=475HsinchuTaiwan, Taiwan 57 US AQI▲117
=475YeonilGyeongsangbuk-do, South Korea 57 US AQI▼8

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