All 2,895 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 in Spain: no readings since 13 Oct (310 monitors). Their cities show older figures or are missing from this board, not clean.

Show 303 cities with only 1–2 sensors

=100Lat KrabangBangkok, Thailand 75 US AQI▲8
=100Khan Na YaoBangkok, Thailand 75 US AQI▼4
103Ban ChangRayong, Thailand 75 US AQI
=104AlmatyAlmaty, Kazakhstan 75 US AQI▼38
=104YesanChungcheongnam-do, South Korea 75 US AQI▲5
106EmalahleniMpumalanga, South Africa 75 US AQI
=107PhuntsholingChukha, Bhutan 74 US AQI▼14
=107Nong KhaemBangkok, Thailand 74 US AQI▲9
=109Tin Shui WaiYuen Long, Hong Kong 74 US AQI▲57
=109Puerto MonttLos Lagos Region, Chile 74 US AQI▼22
=111Nakhon RatchasimaNakhon Ratchasima, Thailand 74 US AQI▲19
=111Gimpo-siGyeonggi-do, South Korea 74 US AQI▲27
=111Cremonalast full day 11 OctLombardy, Italy 74 US AQI
=111JeongeupJeollabuk-do, South Korea 74 US AQI▲12
115Banja LukaSrpska, Bosnia and Herzegovina 74 US AQI▼16
116Hwaseong-siGyeonggi-do, South Korea 74 US AQI▲19
=117Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand 73 US AQI▲9
=117Bijelo PoljeBijelo Polje, Montenegro 73 US AQI▼36
=117SantiagoSantiago Metropolitan, Chile 73 US AQI▼10
=117Puerto AysénAysén, Chile 73 US AQI▼22
=121PinetownKwaZulu-Natal, South Africa 73 US AQI
=121ChillánÑuble, Chile 73 US AQI▼9
=123ModimolleLimpopo, South Africa 73 US AQI▲10
=123Ansan-siGyeonggi-do, South Korea 73 US AQI▲27
=123San CarlosÑuble, Chile 73 US AQI▼19
=126IncheonIncheon, South Korea 73 US AQI▲17
=126GwangmyeongGyeonggi-do, South Korea 73 US AQI▲16
=126VillarricaAraucania, Chile 73 US AQI▼36
129LinaresMaule Region, Chile 73 US AQI▼10
=130BeirutBeirut, Lebanon 72 US AQI▲7
=130Roi EtRoi Et, Thailand 72 US AQI▲16
=130AsanChungcheongnam-do, South Korea 72 US AQI▲1
133HongseongChungcheongnam-do, South Korea 72 US AQI▼13
=134Bang KapiBangkok, Thailand 72 US AQI▼7
=134MokpoJeollanam-do, South Korea 72 US AQI▼28
=136YerevanYerevan, Armenia 72 US AQI▲22
=136OsanGyeonggi-do, South Korea 72 US AQI▲18
=138BangkokBangkok, Thailand 72 US AQI▼4
=138Santiaguito TlalcilalcalliMéxico, Mexico 72 US AQI▼24
=140MukdahanMukdahan, Thailand 71 US AQI▲7
=140YeonggwangJeollanam-do, South Korea 71 US AQI▲23
=140TuxtlaChiapas, Mexico 71 US AQI▼37
=140CauquenesMaule Region, Chile 71 US AQI▼30
=144NanNan, Thailand 71 US AQI▲24
=144San Tung Chung HangIslands, Hong Kong 71 US AQI▲57
=144ZiguinchorZiguinchor, Senegal 71 US AQI▲75
=144AricaArica y Parinacota Region, Chile 71 US AQI▼29
=148eMbalenhleMpumalanga, South Africa 71 US AQI▼19
=148ErlunTaiwan, Taiwan 71 US AQI▲84
=148YŏnmuChungcheongnam-do, South Korea 71 US AQI▼4
=148UžiceCentral Serbia, Serbia 71 US AQI▼59
152Los ÁngelesBiobio, Chile 71 US AQI▼11
=153FanlingNorth District, Hong Kong 71 US AQI▲50
=153Ganghwa-gunIncheon, South Korea 71 US AQI▲2
=153Naucalpan de JuárezMéxico, Mexico 71 US AQI▲31
=153QuinteroValparaiso, Chile 71 US AQI▼32
=157Bang NaBangkok, Thailand 71 US AQI▼40
=157YeojuGyeonggi-do, South Korea 71 US AQI▲39
=157BoryeongChungcheongnam-do, South Korea 71 US AQI▼9
=157RancaguaO'Higgins Region, Chile 71 US AQI▼17
=161SuwonGyeonggi-do, South Korea 70 US AQI▲8
=161Hacienda Santa FeJalisco, Mexico 70 US AQI▼39
=163Mong KokYau Tsim Mong District, Hong Kong 70 US AQI▲39
=163Goyang-siGyeonggi-do, South Korea 70 US AQI▲24
=163Cheongju-siNorth Chungcheong, South Korea 70 US AQI▲20
=163CheonanChungcheongnam-do, South Korea 70 US AQI▼7
=163Monzalast full day 11 OctLombardy, Italy 70 US AQI
=163Saphan SungBangkok, Thailand 70 US AQI▼6
169HarareHarare, Zimbabwe 70 US AQI▼10
=170ObrenovacCentral Serbia, Serbia 70 US AQI▼73
=170EvatonGauteng, South Africa 70 US AQI▼31
=170NamsaJeollabuk-do, South Korea 70 US AQI▲1
=170Yongsan-dongSeoul, South Korea 70 US AQI▲22
=170SejongSejong-si, South Korea 70 US AQI▼8
=175KumanovoKumanovo, North Macedonia 70 US AQI▼92
=175Maha SarakhamMaha Sarakham, Thailand 70 US AQI▲24
=177Mae SaiChiang Rai, Thailand 69 US AQI▲2
=177Samut PrakanSamut Prakan, Thailand 69 US AQI▼12
=177ErlinTaiwan, Taiwan 69 US AQI▲72
=177TalcahuanoBiobio, Chile 69 US AQI▼16
=181Sham Shui PoSham Shui Po District, Hong Kong 69 US AQI▲62
=181SeoulSeoul, South Korea 69 US AQI▲10
=181Anyang-siGyeonggi-do, South Korea 69 US AQI▲16
=184NišCentral Serbia, Serbia 69 US AQI▼60
=184TzaneenLimpopo, South Africa 69 US AQI▼59
=184TokozaGauteng, South Africa 69 US AQI▼31
=184Bang PakongChachoengsao, Thailand 69 US AQI▲55
=184ZhushanTaiwan, Taiwan 69 US AQI▲58
=184Guri-siGyeonggi-do, South Korea 69 US AQI▲25
=184TemucoAraucania, Chile 69 US AQI▼24
=191SkopjeGrad Skopje, North Macedonia 69 US AQI▼90
=191PietermaritzburgKwaZulu-Natal, South Africa 69 US AQI▼21
=191Tai PoTai Po, Hong Kong 69 US AQI▲62
=191OkcheonNorth Chungcheong, South Korea 69 US AQI▼10
=191TalcaMaule Region, Chile 69 US AQI▼40
=196Buri RamBuriram, Thailand 69 US AQI▲11
=196MuanJeollanam-do, South Korea 69 US AQI▼47
=196Poggio Ruscolast full day 11 OctLombardy, Italy 69 US AQI
=199SmederevoCentral Serbia, Serbia 69 US AQI▼108
=199DouliuTaiwan, Taiwan 69 US AQI▲65

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), last 7 days to 14 Oct 2026, 07:00 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 07:07 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).