SmogRank / History / January 22, 2025
Most polluted cities on January 22, 2025
2,228 cities ranked by their average PM2.5 over the day; the worst was Dhaka, Bangladesh, at 383.0 µg/m³. Each city's own local calendar day.
- Japan and South Korea, January 202517 to 24 January 2025, 8 days274 cities117Yeoju
- Western United States, January 202518 to 24 January 2025, 7 days19 cities61Oxnard
- Central Europe, January 202514 to 23 January 2025, 10 days383 cities252Sarajevo
- Eastern Europe, January 202522 to 23 January 2025, 2 days123 cities145Żywiec
- Taiwan, January 202521 to 22 January 2025, 2 days22 cities55Yuanlin
Bad-air episodes during January 22, 2025. All episodes.
← Dhaka 383.0 µg/m³
300 µg/m³15 WHO 24-hour guideline
- 1Dhakalow-cost sensorsDhaka Division, Bangladesh 500+25.5×
- 2SarajevoFederation of B&H, Bosnia and Herzegovina 29114.4×
- 3KolkataWest Bengal, India 27013.0×
- 4Banja LukaSrpska, Bosnia and Herzegovina 25712.1×
- 5Lahorelow-cost sensorsPunjab, Pakistan 24411.3×
- 6Ulan BatorUlaanbaatar, Mongolia 2249.9×
- 7ŻywiecSilesia, Poland 2209.7×
- 8DelhiDelhi, India 1998.3×
- 8MumbaiMaharashtra, India 1998.3×
- 10Karachilow-cost sensorsSindh, Pakistan 1917.5×
- 10Bielsko-BialaSilesia, Poland 1917.5×
- 12Kampalalow-cost sensorsCentral Region, Uganda 1897.3×
- 13Kathmandulow-cost sensorsBagmati Province, Nepal 1836.8×
- 14Yangp'yŏngGyeonggi-do, South Korea 1796.4×
- 15YeojuGyeonggi-do, South Korea 1776.1×
- 16LazarevacCentral Serbia, Serbia 1756.0×
- 16Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo 1756.0×
- 18Liptovský Mikulᚎilina Region, Slovakia 1756.0×
- 19PubalGyeonggi-do, South Korea 1756.0×
- 20Icheon-siGyeonggi-do, South Korea 1725.7×
- 21ZemunCentral Serbia, Serbia 1715.6×
- 22KinzanChungcheongnam-do, South Korea 1715.6×
- 23PyeongtaekGyeonggi-do, South Korea 1705.5×
- 24Hongch’ŏnGangwon-do, South Korea 1705.5×
- 25WabuGyeonggi-do, South Korea 1705.5×
- 26KrotoszynGreater Poland, Poland 1695.4×
- 27Skarżysko-KamiennaŚwiętokrzyskie, Poland 1695.4×
- 27HanoiHanoi, Vietnam 1695.4×
- 29Nong KhaemBangkok, Thailand 1695.4×
- 30JungpyongNorth Chungcheong, South Korea 1685.4×
- 31OtwockMazovia, Poland 1685.3×
- 31Islamabadlow-cost sensorsIslamabad, Pakistan 1685.3×
- 33HyderabadTelangana, India 1685.3×
- 34Ban Samae DamBangkok, Thailand 1685.3×
- 35WŏnjuGangwon-do, South Korea 1675.2×
- 36Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan 1675.2×
- 37GwangjuGyeonggi-do, South Korea 1675.2×
- 37AnseongGyeonggi-do, South Korea 1675.2×
- 37YŏnmuChungcheongnam-do, South Korea 1675.2×
- 41OsanGyeonggi-do, South Korea 1665.2×
- 42ŻyrardówMazovia, Poland 1665.2×
- 42ChennaiTamil Nadu, India 1665.2×
- 44SuwonGyeonggi-do, South Korea 1665.1×
- 45OkcheonNorth Chungcheong, South Korea 1665.1×
- 46KoesanNorth Chungcheong, South Korea 1665.1×
- 47ZgierzŁódź Voivodeship, Poland 1655.1×
- 48Bang NaBangkok, Thailand 1644.9×
- 49Cheongju-siNorth Chungcheong, South Korea 1644.9×
- 50Bueng KumBangkok, Thailand 1644.9×
- 51SeonghwanChungcheongnam-do, South Korea 1634.9×
- 52ObrenovacCentral Serbia, Serbia 1634.8×
- 53NonsanChungcheongnam-do, South Korea 1634.8×
- 54GumiGyeongsangbuk-do, South Korea 1624.8×
- 55N'DjamenaN’Djaména, Chad 1624.8×
- 56DushanbeDushanbe, Tajikistan 1624.8×
- 56YeongjuGyeongsangbuk-do, South Korea 1624.8×
- 58BelgradeCentral Serbia, Serbia 1624.7×
- 59YeongdongNorth Chungcheong, South Korea 1624.7×
- 59HwadoGyeonggi-do, South Korea 1624.7×
- 61LubańLower Silesia, Poland 1614.7×
- 62Guri-siGyeonggi-do, South Korea 1614.7×
- 63AsanChungcheongnam-do, South Korea 1604.6×
- 64Chinch'ŏnNorth Chungcheong, South Korea 1604.6×
- 64Khan Na YaoBangkok, Thailand 1604.6×
- 66Ansan-siGyeonggi-do, South Korea 1604.6×
- 67Lat KrabangBangkok, Thailand 1604.6×
- 68MunsanGyeonggi-do, South Korea 1604.6×
- 69ChungjuNorth Chungcheong, South Korea 1604.5×
- 70ChuncheonGangwon-do, South Korea 1594.4×
- 71Nong ChokBangkok, Thailand 1584.4×
- 72HayangGyeongsangbuk-do, South Korea 1584.4×
- 72SejongSejong-si, South Korea 1584.4×
- 74PrzemyślSubcarpathia, Poland 1584.4×
- 74MartinŽilina Region, Slovakia 1584.4×
- 76GimcheonGyeongsangbuk-do, South Korea 1584.3×
- 76Khlong Sam WaBangkok, Thailand 1584.3×
- 78KielceŚwiętokrzyskie, Poland 1584.3×
- 78MungyeongGyeongsangbuk-do, South Korea 1584.3×
- 80SeoulSeoul, South Korea 1584.3×
- 81Saphan SungBangkok, Thailand 1574.3×
- 82WarsawMazovia, Poland 1574.3×
- 83Anyang-siGyeonggi-do, South Korea 1574.3×
- 84BangkokBangkok, Thailand 1574.3×
- 84IksanJeollabuk-do, South Korea 1574.3×
- 86CheonanChungcheongnam-do, South Korea 1574.3×
- 87SremčicaCentral Serbia, Serbia 1574.2×
- 87YeonilGyeongsangbuk-do, South Korea 1574.2×
- 89Gimpo-siGyeonggi-do, South Korea 1574.2×
- 90SangjuGyeongsangbuk-do, South Korea 1574.2×
- 91Dimitrovgradlow-cost sensorsHaskovo, Bulgaria 1564.2×
- 92Hwaseong-siGyeonggi-do, South Korea 1564.2×
- 93PruszkówMazovia, Poland 1564.2×
- 94GwangmyeongGyeonggi-do, South Korea 1564.2×
- 95Gyeongsan-siGyeongsangbuk-do, South Korea 1564.1×
- 96Bang KapiBangkok, Thailand 1564.1×
- 96GapyeongGyeonggi-do, South Korea 1564.1×
- 98Seongnam-siGyeonggi-do, South Korea 1554.1×
- 99RužomberokŽilina Region, Slovakia 1554.1×
- 100Tomaszów LubelskiLublin, Poland 1554.1×
- 100LublinLublin, Poland 1554.1×
- 102Ban Khlong PrawetBangkok, Thailand 1554.1×
- 102Ganghwa-gunIncheon, South Korea 1554.1×
- 104DaejeonDaejeon, South Korea 1554.1×
- 105OxnardCalifornia, United States 1554.1×
- 105Lak SiBangkok, Thailand 1554.1×
- 107LegionowoMazovia, Poland 1554.1×
- 107BuyeoChungcheongnam-do, South Korea 1554.1×
- 109KrakówLesser Poland, Poland 1554.0×
- 110DaeguDaegu, South Korea 1544.0×
- 111WawerMazovia, Poland 1544.0×
- 111GyeongjuGyeongsangbuk-do, South Korea 1544.0×
- 113AugustówPodlasie, Poland 1544.0×
- 114PohangGyeongsangbuk-do, South Korea 1544.0×
- 114KutnoŁódź Voivodeship, Poland 1544.0×
- 116Sevlievolow-cost sensorsGabrovo, Bulgaria 1544.0×
- 117Molina de SeguraMurcia, Spain 1543.9×
- 117ŁaskŁódź Voivodeship, Poland 1543.9×
- 119Haskovolow-cost sensorsHaskovo, Bulgaria 1533.9×
- 120ShenyangLiaoning, China 1533.9×
- 120KaliszGreater Poland, Poland 1533.9×
- 122RuseRuse, Bulgaria 1533.9×
- 123Uijeongbu-siGyeonggi-do, South Korea 1533.9×
- 123Goyang-siGyeonggi-do, South Korea 1533.9×
- 125EisenGyeongsangbuk-do, South Korea 1533.9×
- 125Bucheon-siGyeonggi-do, South Korea 1533.9×
- 127NamsaJeollabuk-do, South Korea 1533.9×
- 127IncheonIncheon, South Korea 1533.9×
- 127HanamGyeonggi-do, South Korea 1533.9×
- 130ThessaloníkiCentral Macedonia, Greece 1533.9×
- 131ZamośćLublin, Poland 1533.9×
- 131NangenJeollabuk-do, South Korea 1533.9×
- 133PančevoVojvodina, Serbia 1533.9×
- 133WaegwanGyeongsangbuk-do, South Korea 1533.9×
- 135KigaliKigali, Rwanda 1523.8×
- 135Jinan-gunJeollabuk-do, South Korea 1523.8×
- 135Sai MaiBangkok, Thailand 1523.8×
- 138YesanChungcheongnam-do, South Korea 1523.8×
- 138ChangsuJeollabuk-do, South Korea 1523.8×
- 140KimjeJeollabuk-do, South Korea 1523.8×
- 141CodleaBrașov County, Romania 1523.8×
- 142NamyangjuGyeonggi-do, South Korea 1523.8×
- 143AndongGyeongsangbuk-do, South Korea 1513.7×
- 144GunsanJeollabuk-do, South Korea 1513.7×
- 144HwacheonGangwon-do, South Korea 1513.7×
- 146Konstancin-JeziornaMazovia, Poland 1513.7×
- 147ImsilJeollabuk-do, South Korea 1513.7×
- 148YuanlinTaiwan, Taiwan 1503.7×
- 149WanjuJeollabuk-do, South Korea 1493.7×
- 149LjubljanaLjubljana, Slovenia 1493.7×
- 151DouliuTaiwan, Taiwan 1493.7×
- 151CheorwonGangwon-do, South Korea 1493.7×
- 151KranjUrban Municipality of Kranj, Slovenia 1493.7×
- 154Abujalow-cost sensorsFCT, Nigeria 1493.7×
- 155StarachowiceŚwiętokrzyskie, Poland 1483.6×
- 156NeietsuGangwon-do, South Korea 1473.6×
- 156HwawŏnDaegu, South Korea 1473.6×
- 158Botevgradlow-cost sensorsSofia, Bulgaria 1463.6×
- 158YangjuGyeonggi-do, South Korea 1463.6×
- 160TangjinChungcheongnam-do, South Korea 1463.6×
- 161RadomMazovia, Poland 1453.6×
- 161Czechowice-DziedziceSilesia, Poland 1453.6×
- 163KunwiGyeongsangbuk-do, South Korea 1453.6×
- 164ŁódźŁódź Voivodeship, Poland 1453.5×
- 165GongjuChungcheongnam-do, South Korea 1443.5×
- 166YecheonGyeongsangbuk-do, South Korea 1443.5×
- 167NaesŏGyeongsangnam-do, South Korea 1443.5×
- 168MiskolcBorsod-Abaúj-Zemplén, Hungary 1433.5×
- 169PoznańGreater Poland, Poland 1433.5×
- 169OpoleOpole Voivodeship, Poland 1433.5×
- 171FillmoreCalifornia, United States 1423.5×
- 172ChinjuGyeongsangnam-do, South Korea 1423.5×
- 173HongseongChungcheongnam-do, South Korea 1403.4×
- 174NiskoSubcarpathia, Poland 1403.4×
- 175TongyeongGyeongsangnam-do, South Korea 1393.4×
- 176JeonjuJeollabuk-do, South Korea 1373.4×
- 176Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast 1373.4×
- 178Chiayi CityTaiwan, Taiwan 1353.3×
- 179MurciaMurcia, Spain 1353.3×
- 180BaghdadBaghdad, Iraq 1343.3×
- 180Cheongsong gunGyeongsangbuk-do, South Korea 1343.3×
- 182UlsanUlsan, South Korea 1333.2×
- 182WłocławekKujawsko-Pomorskie, Poland 1333.2×
- 184GeojeGyeongsangnam-do, South Korea 1323.2×
- 185MasanGwangju, South Korea 1323.2×
- 186SeosanChungcheongnam-do, South Korea 1323.2×
- 187EłkWarmia-Masuria, Poland 1313.2×
- 188MiryangGyeongsangnam-do, South Korea 1313.2×
- 188BrzegOpole Voivodeship, Poland 1313.2×
- 190KimhaeGyeongsangnam-do, South Korea 1303.2×
- 191BuziTaiwan, Taiwan 1293.1×
- 192BusanBusan, South Korea 1293.1×
- 193TaichungTaiwan, Taiwan 1283.1×
- 193SinhyeonGyeongsangnam-do, South Korea 1283.1×
- 193ChangnyeongGyeongsangnam-do, South Korea 1283.1×
- 196ČadcaŽilina Region, Slovakia 1283.1×
- 197NajuJeollanam-do, South Korea 1273.1×
- 198BuanJeollabuk-do, South Korea 1263.1×
- 198ChangwonGyeongsangnam-do, South Korea 1263.1×
- 200BoryeongChungcheongnam-do, South Korea 1253.0×
Top 200 of 2,228 shown.
Good0–50
Moderate51–100
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
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SmogRank, most polluted cities, PM2.5, January 22, 2025, smogrank.com/history/2025-01-22 (accessed 2 Oct 2026).
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