All 3,198 cities by PM2.5, this year

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.

=201Târgu MureşMureș County, Romania 89 US AQI5.9 times the WHO guideline▼7
=201TirumalaAndhra Pradesh, India 89 US AQI5.9 times the WHO guideline▼1
203AshaimanGreater Accra, Ghana 89 US AQI5.9 times the WHO guideline▼5
204TuxtlaChiapas, Mexico 89 US AQI5.9 times the WHO guideline▼14
205BengaluruKarnataka, India 88 US AQI5.8 times the WHO guideline▲1
206AmaravatiAndhra Pradesh, India 88 US AQI5.8 times the WHO guideline▲1
=207ThāneMaharashtra, India 88 US AQI5.8 times the WHO guideline▼6
=207JabalpurMadhya Pradesh, India 88 US AQI5.8 times the WHO guideline▼2
=209BlantyreSouthern Region, Malawi 88 US AQI5.7 times the WHO guideline▼6
=209SaugorMadhya Pradesh, India 88 US AQI5.7 times the WHO guideline▼5
211TalgharAlmaty Region, Kazakhstan 87 US AQI5.7 times the WHO guideline▼3
212BathindaPunjab, India 87 US AQI5.7 times the WHO guideline
=213MurreePunjab, Pakistan 87 US AQI5.7 times the WHO guideline▼4
=213NashikMaharashtra, India 87 US AQI5.7 times the WHO guideline▲2
=213PhraePhrae, Thailand 87 US AQI5.7 times the WHO guideline
216JalorRajasthan, India 87 US AQI5.7 times the WHO guideline▼5
217VirārMaharashtra, India 87 US AQI5.6 times the WHO guideline▼7
=218VaranasiUttar Pradesh, India 86 US AQI5.6 times the WHO guideline▼1
=218Hacienda Santa FeJalisco, Mexico 86 US AQI5.6 times the WHO guideline▼4
=218NeelankaraiTamil Nadu, India 86 US AQI5.6 times the WHO guideline▼16
221SāngliMaharashtra, India 86 US AQI5.6 times the WHO guideline▼1
222FīrozābādUttar Pradesh, India 85 US AQI5.5 times the WHO guideline▼4
=223KarongaNorthern Region, Malawi 85 US AQI5.5 times the WHO guideline▼2
=223Siligurilast full day 10 OctWest Bengal, India 85 US AQI5.5 times the WHO guideline▼1
=223RājsamandRajasthan, India 85 US AQI5.5 times the WHO guideline
=223BārānRajasthan, India 85 US AQI5.5 times the WHO guideline▲2
=223AmravatiMaharashtra, India 85 US AQI5.5 times the WHO guideline▲6
=228Chiang RaiChiang Rai, Thailand 85 US AQI5.5 times the WHO guideline▼1
=228SrbacSrpska, Bosnia and Herzegovina 85 US AQI5.5 times the WHO guideline
230QuettaBalochistan, Pakistan 85 US AQI5.5 times the WHO guideline▼2
=231BeitbridgeMatabeleland South Province, Zimbabwe 85 US AQI5.4 times the WHO guideline▼5
=231PatiālaPunjab, India 85 US AQI5.4 times the WHO guideline▼7
=231PljevljaPljevlja, Montenegro 85 US AQI5.4 times the WHO guideline▼15
=234Sawai MadhopurRajasthan, India 85 US AQI5.4 times the WHO guideline▼3
=234NāgaurRajasthan, India 85 US AQI5.4 times the WHO guideline▼2
236JodhpurRajasthan, India 84 US AQI5.4 times the WHO guideline▼3
=237VrindāvanUttar Pradesh, India 84 US AQI5.3 times the WHO guideline▲3
=237Uthai ThaniUthai Thani, Thailand 84 US AQI5.3 times the WHO guideline▼2
=239Ratchaburilast full day 19 SeptRatchaburi, Thailand 84 US AQI5.3 times the WHO guideline▼3
=239ChennaiTamil Nadu, India 84 US AQI5.3 times the WHO guideline▼1
=241UttaraditUttaradit, Thailand 83 US AQI5.3 times the WHO guideline▼2
=241Loeilast full day 14 SeptLoei, Thailand 83 US AQI5.3 times the WHO guideline
=243Closepetlast full day 1 OctKarnataka, India 83 US AQI5.3 times the WHO guideline▼9
=243Khon KaenKhon Kaen, Thailand 83 US AQI5.3 times the WHO guideline▼1
=245Khlong LuangPathum Thani, Thailand 83 US AQI5.2 times the WHO guideline
=245PrijedorSrpska, Bosnia and Herzegovina 83 US AQI5.2 times the WHO guideline
=245Santa Anita - Los FicusLima region, Peru 83 US AQI5.2 times the WHO guideline▼2
=245NandriRajasthan, India 83 US AQI5.2 times the WHO guideline▼1
=249BhayandarMaharashtra, India 83 US AQI5.2 times the WHO guideline▼3
=249Bueng KanBueng Kan, Thailand 83 US AQI5.2 times the WHO guideline▼2
=249QuilpuéValparaiso, Chile 83 US AQI5.2 times the WHO guideline▼1
252SerilingampalleTelangana, India 82 US AQI5.2 times the WHO guideline▼3
253QuthbullapurTelangana, India 82 US AQI5.1 times the WHO guideline▼1
254Quezon CityNational Capital Region, Philippines 81 US AQI5.1 times the WHO guideline▲1
=255Ubon RatchathaniUbon Ratchathani, Thailand 81 US AQI5.1 times the WHO guideline▼2
=255Bang NaBangkok, Thailand 81 US AQI5.1 times the WHO guideline▼1
257KanchanaburiKanchanaburi, Thailand 81 US AQI5.0 times the WHO guideline
258TemaGreater Accra, Ghana 81 US AQI5.0 times the WHO guideline
=259OtwockMazovia, Poland 81 US AQI5.0 times the WHO guideline▼22
=259Chai NatChai Nat, Thailand 81 US AQI5.0 times the WHO guideline
=259IloiloWestern Visayas, Philippines 81 US AQI5.0 times the WHO guideline▲1
=259AguascalientesAguascalientes, Mexico 81 US AQI5.0 times the WHO guideline▼40
=259Khlong Sam WaBangkok, Thailand 81 US AQI5.0 times the WHO guideline▲2
264MumbaiMaharashtra, India 80 US AQI5.0 times the WHO guideline▼13
=265Si Maha PhotPrachin Buri, Thailand 80 US AQI5.0 times the WHO guideline▼3
=265San Pedro de la PazBiobio, Chile 80 US AQI5.0 times the WHO guideline▼1
=267AlmatyAlmaty, Kazakhstan 80 US AQI4.9 times the WHO guideline▼4
=267Bijelo PoljeBijelo Polje, Montenegro 80 US AQI4.9 times the WHO guideline▼17
=267Khan Na YaoBangkok, Thailand 80 US AQI4.9 times the WHO guideline▼2
=270Sing BuriSing Buri, Thailand 80 US AQI4.9 times the WHO guideline▼4
=270Samut SakhonSamut Sakhon, Thailand 80 US AQI4.9 times the WHO guideline▼3
=270ToméBiobio, Chile 80 US AQI4.9 times the WHO guideline
273KalasinKalasin, Thailand 80 US AQI4.9 times the WHO guideline▼5
=274Kamphaeng PhetKamphaeng Phet, Thailand 80 US AQI4.9 times the WHO guideline▼3
=274ŻywiecSilesia, Poland 80 US AQI4.9 times the WHO guideline▼44
=274SarajevoFederation of B&H, Bosnia and Herzegovina 80 US AQI4.9 times the WHO guideline▼5
=274TlaquepaqueJalisco, Mexico 80 US AQI4.9 times the WHO guideline▼2
278LimaLima Province, Peru 79 US AQI4.8 times the WHO guideline▼4
279RairangpurOdisha, India 79 US AQI4.8 times the WHO guideline▼3
=280SilcharAssam, India 79 US AQI4.8 times the WHO guideline▼5
=280QuillotaValparaiso, Chile 79 US AQI4.8 times the WHO guideline▼3
=282PuchuncavíValparaiso, Chile 79 US AQI4.8 times the WHO guideline▼4
=282ConcónValparaiso, Chile 79 US AQI4.8 times the WHO guideline▼1
=284YerevanYerevan, Armenia 78 US AQI4.8 times the WHO guideline▼5
=284JhānsiUttar Pradesh, India 78 US AQI4.8 times the WHO guideline▲1
=284QuinteroValparaiso, Chile 78 US AQI4.8 times the WHO guideline▼4
=287Chiang MaiChiang Mai, Thailand 78 US AQI4.7 times the WHO guideline▼5
=287KatiharBihar, India 78 US AQI4.7 times the WHO guideline▼1
=287TocopillaAntofagasta, Chile 78 US AQI4.7 times the WHO guideline▲3
=287Lat KrabangBangkok, Thailand 78 US AQI4.7 times the WHO guideline▼4
=291IstanbulIstanbul, Turkey 78 US AQI4.7 times the WHO guideline▼7
=291ConcepciónBiobio, Chile 78 US AQI4.7 times the WHO guideline▼3
=293Suphan BuriSuphan Buri, Thailand 78 US AQI4.7 times the WHO guideline▼6
=293ChiguayanteBiobio, Chile 78 US AQI4.7 times the WHO guideline▼2
295HubballiKarnataka, India 77 US AQI4.7 times the WHO guideline▼6
=296SirohiRajasthan, India 77 US AQI4.6 times the WHO guideline▼4
=296Wan ChaiWan Chai, Hong Kong 77 US AQI4.6 times the WHO guideline▲1
=298Rovinarilast full day 10 OctGorj County, Romania 77 US AQI4.6 times the WHO guideline▼3
=298PrayagrajUttar Pradesh, India 77 US AQI4.6 times the WHO guideline▼4
=298Nakhon RatchasimaNakhon Ratchasima, Thailand 77 US AQI4.6 times the WHO guideline▼2

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), this year to 14 Oct 2026, 06:00 UTC: each city's mean of its daily means, cities measured on 70% or more of the days since 1 January (at least 14). Monitor data from national networks via OpenAQ and the publishers listed at smogrank.com/sources. smogrank.com/rankings?w=year. Ranked on low-cost sensors, with no reference monitor in the city: #2 Faisalabad, #3 Gujranwala and #6 Lahore. Some values from Sensor.Community, ODbL. Some readings from Department of Environment, Nepal; Vietnam's government monitors; Aurassure; RMCAB (Secretaría Distrital de Ambiente, Bogotá); 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: Department of Environment, Nepal; Vietnam's government monitors; Aurassure; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Umhverfisstofnun (Environment Agency of Iceland), no reuse terms published (why we use them).