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.

=475MenumaSaitama, Japan 57 US AQI▲57
=475AccraGreater Accra, Ghana 57 US AQI▼21
=475RužomberokŽilina Region, Slovakia 57 US AQI▼86
=475ItaguaíRio de Janeiro, Brazil 57 US AQI▼3
=475Atotonilco de TulaHidalgo, Mexico 57 US AQI▲169
=475HigashihiroshimaHiroshima, Japan 57 US AQI▼25
=485KošiceKošice Region, Slovakia 57 US AQI▼178
=485JangseongJeollanam-do, South Korea 57 US AQI▲33
=485ToyotaAichi, Japan 57 US AQI▲84
=485OnomichiHiroshima, Japan 57 US AQI▲5
=485NagoyaAichi, Japan 57 US AQI▲75
=485SaijōEhime, Japan 57 US AQI▲26
=485NisshinAichi, Japan 57 US AQI▲3
not rankedGuadalupeNuevo León, Mexico 57 US AQI
not rankedSugar HillGeorgia, United States 57 US AQI
=492TrebišovKošice Region, Slovakia 56 US AQI▼191
=492ČaňaKošice Region, Slovakia 56 US AQI▼209
=492LublinLublin, Poland 56 US AQI▼81
=492IlindenIlinden, North Macedonia 56 US AQI▼169
=492HwasunJeollanam-do, South Korea 56 US AQI▼44
=492ShibukawaGunma, Japan 56 US AQI▲102
=492Alcalá de GuadairaAndalusia, Spain 56 US AQI
=492CrescentinoPiedmont, Italy 56 US AQI▼177
=492GuaratinguetáSão Paulo, Brazil 56 US AQI▲127
not rankedVang ViengVientiane, Laos 56 US AQI
=501KavadarciKavadarci, North Macedonia 56 US AQI▼144
=501PokharaGandaki Pradesh, Nepal 56 US AQI
=501GamagōriAichi, Japan 56 US AQI▲60
=501OlomoucOlomouc Region, Czechia 56 US AQI▼58
not rankedKikuyuKiambu County, Kenya 56 US AQI
not rankedDarwinNorthern Territory, Australia 56 US AQI
=505AndongGyeongsangbuk-do, South Korea 56 US AQI▼23
=505HitaOita, Japan 56 US AQI▲4
=505YeosuJeollanam-do, South Korea 56 US AQI▼36
=505NaesŏGyeongsangnam-do, South Korea 56 US AQI▲5
=505PúchovTrenčín Region, Slovakia 56 US AQI▼145
=505ZgierzŁódź Voivodeship, Poland 56 US AQI▼49
=505KatowiceSilesia, Poland 56 US AQI▼10
=505Czechowice-DziedziceSilesia, Poland 56 US AQI▲18
=505TurinPiedmont, Italy 56 US AQI▼156
=505ShonaiYamagata, Japan 56 US AQI▼61
not rankedStalowa WolaSubcarpathia, Poland 56 US AQI
not rankedCaxias do SulRio Grande do Sul, Brazil 56 US AQI
=515ZhudongTaiwan, Taiwan 56 US AQI▲256
=515FukuroiShizuoka, Japan 56 US AQI▲6
=515LitvínovÚstí nad Labem Region, Czechia 56 US AQI▼13
=515CieszynSilesia, Poland 56 US AQI▼29
=515León de los AldamaGuanajuato, Mexico 56 US AQI▲50
=515Imperial BeachCalifornia, United States 56 US AQI▼105
=515Higashi-MatsuyamaSaitama, Japan 56 US AQI▲91
=515FuefukiYamanashi, Japan 56 US AQI▲41
not rankedSiem ReapSiem Reap, Cambodia 56 US AQI
=523KielceŚwiętokrzyskie, Poland 56 US AQI▼59
=523TomiokaGunma, Japan 56 US AQI▲88
=523SetoAichi, Japan 56 US AQI▲184
=523ŌtaGunma, Japan 56 US AQI▲72
=523Kashima-shiIbaraki, Japan 56 US AQI▼3
=523IseMie, Japan 56 US AQI▲92
=523AnjōAichi, Japan 56 US AQI▲151
=523YoshiokaMiyagi, Japan 56 US AQI▲59
=523SukayamaChiba, Japan 56 US AQI▲60
=523ŠahyNitra Region, Slovakia 56 US AQI▲7
=523Wodzisław ŚląskiSilesia, Poland 56 US AQI▲8
=523ŁódźŁódź Voivodeship, Poland 56 US AQI▼61
=523ZarautzBasque Country, Spain 56 US AQI
=523BogotáBogota D.C., Colombia 56 US AQI▲2
=523MarionArkansas, United States 56 US AQI▲51
=523TulsaOklahoma, United States 56 US AQI▼26
not rankedWejherowoPomerania, Poland 56 US AQI
=539JarosławSubcarpathia, Poland 55 US AQI▼80
=539SukhothaiSukhothai, Thailand 55 US AQI▲188
=539YeongdongNorth Chungcheong, South Korea 55 US AQI▲3
=539TatebayashiGunma, Japan 55 US AQI▲54
=539TajimiGifu, Japan 55 US AQI▲193
=539ShinshiroAichi, Japan 55 US AQI▲113
=539Shin’ichiHiroshima, Japan 55 US AQI▲4
=539MinamirinkanKanagawa, Japan 55 US AQI▼20
=539Kodamachō-kodamaminamiSaitama, Japan 55 US AQI▲75
=539HamakitaShizuoka, Japan 55 US AQI
=539SinhyeonGyeongsangnam-do, South Korea 55 US AQI▼48
=539TepliceÚstí nad Labem Region, Czechia 55 US AQI▼84
=539SarajevoFederation of B&H, Bosnia and Herzegovina 55 US AQI▼119
=539KutinaSisak-Moslavina, Croatia 55 US AQI▲204
=539São José do Rio PretoSão Paulo, Brazil 55 US AQI▲24
=539MonterreyNuevo León, Mexico 55 US AQI▼65
not rankedSpring HillTennessee, United States 55 US AQI
=555AthensAttica, Greece 55 US AQI▼50
=555Si Sa KetSi Sa Ket, Thailand 55 US AQI▲71
=555KeelungTaiwan, Taiwan 55 US AQI▲296
=555ChangsuJeollabuk-do, South Korea 55 US AQI▼2
=555ToledoCastille-La Mancha, Spain 55 US AQI
=555MartinŽilina Region, Slovakia 55 US AQI▼136
=555MaconGeorgia, United States 55 US AQI▲105
=555MinamichitaAichi, Japan 55 US AQI▲52
=555KaminomaAichi, Japan 55 US AQI▲111
not rankedAddisonTexas, United States 55 US AQI
=564TobaMie, Japan 55 US AQI▲72
=564GifuGifu, Japan 55 US AQI▲90
=564ŽilinaŽilina Region, Slovakia 55 US AQI▼122
=564BirminghamAlabama, United States 55 US AQI▲157

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).