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.

=99Chāndalast full day 11 OctMaharashtra, India 105 US AQI7.5 times the WHO guideline▲2
=99La UniónLos Ríos Region, Chile 105 US AQI7.5 times the WHO guideline▲6
103PanchkulaHaryana, India 105 US AQI7.4 times the WHO guideline▼1
104JalgaonMaharashtra, India 104 US AQI7.4 times the WHO guideline▼4
105KishanganjBihar, India 104 US AQI7.4 times the WHO guideline▼6
106FatehābādHaryana, India 104 US AQI7.3 times the WHO guideline▼9
=107HanoiHanoi, Vietnam 103 US AQI7.3 times the WHO guideline
=107Santa MaríaLima region, Peru 103 US AQI7.3 times the WHO guideline▲1
=109Mae SaiChiang Rai, Thailand 103 US AQI7.3 times the WHO guideline
=109SirsaHaryana, India 103 US AQI7.3 times the WHO guideline▼6
=109KanpurUttar Pradesh, India 103 US AQI7.3 times the WHO guideline▼3
=109GayaBihar, India 103 US AQI7.3 times the WHO guideline▼2
=113BurundayAlmaty Region, Kazakhstan 103 US AQI7.2 times the WHO guideline▼2
=113VientianeVientiane Prefecture, Laos 103 US AQI7.2 times the WHO guideline
115KolkataWest Bengal, India 102 US AQI7.2 times the WHO guideline▲1
116Kahi KuchiAssam, India 102 US AQI7.2 times the WHO guideline▲2
117SiltaraChhattisgarh, India 101 US AQI7.1 times the WHO guideline▼3
118SuratGujarat, India 101 US AQI7.1 times the WHO guideline▼3
=119Otegen BatyraAlmaty Region, Kazakhstan 101 US AQI7.1 times the WHO guideline▲2
=119VillarricaAraucania, Chile 101 US AQI7.1 times the WHO guideline▲10
=121TalojeMaharashtra, India 100 US AQI7.1 times the WHO guideline▼1
=121KotaRajasthan, India 100 US AQI7.1 times the WHO guideline▲2
=121BhilwaraRajasthan, India 100 US AQI7.1 times the WHO guideline▲1
=121ChillánÑuble, Chile 100 US AQI7.1 times the WHO guideline▲3
125San CarlosÑuble, Chile 100 US AQI7.0 times the WHO guideline▲1
=126DubaiDubai, United Arab Emirates 99 US AQI7.0 times the WHO guideline▲2
=126GuwahatiAssam, India 99 US AQI7.0 times the WHO guideline▲4
=128JhālāwārRajasthan, India 99 US AQI7.0 times the WHO guideline▼3
=128BhāgalpurBihar, India 99 US AQI7.0 times the WHO guideline▼18
=128Pimpri-ChinchwadMaharashtra, India 99 US AQI7.0 times the WHO guideline▼1
131DhaulpurRajasthan, India 99 US AQI7.0 times the WHO guideline▼19
=132KhurjaUttar Pradesh, India 99 US AQI7.0 times the WHO guideline▲1
=132TemucoAraucania, Chile 99 US AQI7.0 times the WHO guideline▲3
=134NohanPunjab, India 99 US AQI6.9 times the WHO guideline▼30
=134AgraUttar Pradesh, India 99 US AQI6.9 times the WHO guideline▼3
136PalwalHaryana, India 99 US AQI6.9 times the WHO guideline▼19
=137Sri GanganagarRajasthan, India 98 US AQI6.9 times the WHO guideline▼3
=137DewasMadhya Pradesh, India 98 US AQI6.9 times the WHO guideline▼1
139DurgapurWest Bengal, India 98 US AQI6.8 times the WHO guideline▼2
=140CuttackOdisha, India 97 US AQI6.8 times the WHO guideline▼2
=140BaripādaOdisha, India 97 US AQI6.8 times the WHO guideline▼1
=142MorādābādUttar Pradesh, India 97 US AQI6.7 times the WHO guideline▼2
=142BānswāraRajasthan, India 97 US AQI6.7 times the WHO guideline▼23
=142HualquiBiobio, Chile 97 US AQI6.7 times the WHO guideline▲1
145DhuleMaharashtra, India 97 US AQI6.7 times the WHO guideline▼4
146AurangabadMaharashtra, India 96 US AQI6.7 times the WHO guideline▼2
=147ChūruRajasthan, India 96 US AQI6.7 times the WHO guideline▼5
=147LagosLagos, Nigeria 96 US AQI6.7 times the WHO guideline▲21
=147SantiagoSantiago Metropolitan, Chile 96 US AQI6.7 times the WHO guideline
=150BilāspurChhattisgarh, India 96 US AQI6.7 times the WHO guideline▼1
=150BhiwandiMaharashtra, India 96 US AQI6.7 times the WHO guideline▼4
=150Puerto MonttLos Lagos Region, Chile 96 US AQI6.7 times the WHO guideline▲3
153ĀsansolWest Bengal, India 96 US AQI6.6 times the WHO guideline▼3
154Puerto AysénAysén, Chile 96 US AQI6.6 times the WHO guideline▲5
155PuneMaharashtra, India 96 US AQI6.6 times the WHO guideline▼4
=156SholapurMaharashtra, India 95 US AQI6.6 times the WHO guideline▼8
=156KeonjhargarhOdisha, India 95 US AQI6.6 times the WHO guideline▼11
=158ShrīrāmpurWest Bengal, India 95 US AQI6.6 times the WHO guideline▲3
=158KarauliRajasthan, India 95 US AQI6.6 times the WHO guideline▼26
=158RancaguaO'Higgins Region, Chile 95 US AQI6.6 times the WHO guideline▼6
=158BelpaharOdisha, India 95 US AQI6.6 times the WHO guideline▼2
=162RānīganjWest Bengal, India 95 US AQI6.5 times the WHO guideline▼7
=162JhunjhunūnRajasthan, India 95 US AQI6.5 times the WHO guideline▼8
=162GandhinagarGujarat, India 95 US AQI6.5 times the WHO guideline▼5
165RengoO'Higgins Region, Chile 95 US AQI6.5 times the WHO guideline▼7
=166PhayaoPhayao, Thailand 94 US AQI6.5 times the WHO guideline▼6
=166TalaganteSantiago Metropolitan, Chile 94 US AQI6.5 times the WHO guideline▼1
168BhubaneswarOdisha, India 94 US AQI6.4 times the WHO guideline▼6
=169HyderabadTelangana, India 94 US AQI6.4 times the WHO guideline▼6
=169Dausalast full day 11 OctRajasthan, India 94 US AQI6.4 times the WHO guideline▼5
171NandedMaharashtra, India 93 US AQI6.4 times the WHO guideline▼1
172BikanerRajasthan, India 93 US AQI6.3 times the WHO guideline▼6
173Indorelast full day 10 OctMadhya Pradesh, India 93 US AQI6.3 times the WHO guideline▼1
=174JaisalmerRajasthan, India 93 US AQI6.3 times the WHO guideline▼7
=174Los ÁngelesBiobio, Chile 93 US AQI6.3 times the WHO guideline
176BhopalMadhya Pradesh, India 93 US AQI6.3 times the WHO guideline▲2
=177ParbhaniMaharashtra, India 92 US AQI6.3 times the WHO guideline▼2
=177BoisarMaharashtra, India 92 US AQI6.3 times the WHO guideline
=179ChandigarhChandigarh, India 92 US AQI6.2 times the WHO guideline▼6
=179TalcaMaule Region, Chile 92 US AQI6.2 times the WHO guideline
=181DūngarpurRajasthan, India 92 US AQI6.2 times the WHO guideline▼1
=181DurenaChhattisgarh, India 92 US AQI6.2 times the WHO guideline▼10
=183LaturMaharashtra, India 92 US AQI6.2 times the WHO guideline▼7
=183AkolaMaharashtra, India 92 US AQI6.2 times the WHO guideline▼2
=183Puente Altolast full day 9 OctSantiago Metropolitan, Chile 92 US AQI6.2 times the WHO guideline
186CauquenesMaule Region, Chile 91 US AQI6.2 times the WHO guideline▲7
187Banja LukaSrpska, Bosnia and Herzegovina 91 US AQI6.1 times the WHO guideline▲69
188BadlapurMaharashtra, India 91 US AQI6.1 times the WHO guideline▼6
189HanumāngarhRajasthan, India 91 US AQI6.1 times the WHO guideline▼4
190LamphunLamphun, Thailand 90 US AQI6.1 times the WHO guideline▼6
=191SatnaMadhya Pradesh, India 90 US AQI6.0 times the WHO guideline▼4
=191PratāpgarhRajasthan, India 90 US AQI6.0 times the WHO guideline▼5
=191PanvelMaharashtra, India 90 US AQI6.0 times the WHO guideline
=191BūndiRajasthan, India 90 US AQI6.0 times the WHO guideline▼2
=195RatlāmMadhya Pradesh, India 90 US AQI6.0 times the WHO guideline▼7
=195HaldiaWest Bengal, India 90 US AQI6.0 times the WHO guideline▲1
=197RajamahendravaramAndhra Pradesh, India 90 US AQI6.0 times the WHO guideline▼2
=197TalcahuanoBiobio, Chile 90 US AQI6.0 times the WHO guideline▼5
=199CoronelBiobio, Chile 89 US AQI5.9 times the WHO guideline▼2
=199San Luis Potosílast full day 1 OctSan Luis Potosí, Mexico 89 US AQI5.9 times the WHO guideline

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).