SmogRank / History / March 26, 2025
Most polluted cities on March 26, 2025
2,033 cities ranked by their average PM2.5 over the day; the worst was Cheongsong gun, South Korea, at 985.0 µg/m³. Each city's own local calendar day.
- North-eastern India, March and April 202523 March to 6 April 2025, 15 days45 cities255Loni
- Central Europe, March 202519 to 30 March 2025, 12 days333 cities83Kikinda
- Central Thailand, March 202520 to 29 March 2025, 10 days53 cities154Vientiane
- North-western India, March 202526 to 28 March 2025, 3 days13 cities326Loni
- Japan and South Korea, March 202521 to 27 March 2025, 7 days454 cities985Cheongsong gun
Bad-air episodes during March 26, 2025. All episodes.
← Cheongsong gun 985.0 µg/m³
900 µg/m³15 WHO 24-hour guideline
- 1Cheongsong gunGyeongsangbuk-do, South Korea 500+65.7×
- 2YecheonGyeongsangbuk-do, South Korea 48921.3×
- 2AndongGyeongsangbuk-do, South Korea 48921.3×
- 4LoniUttar Pradesh, India 42419.1×
- 5YeongjuGyeongsangbuk-do, South Korea 23010.3×
- 6GurugramHaryana, India 22810.2×
- 7HājīpurBihar, India 2249.9×
- 8SiwānBihar, India 2219.7×
- 9BawānaDelhi, India 2159.3×
- 10Vientianelow-cost sensorsVientiane Prefecture, Laos 2159.3×
- 11CoyhaiqueAysén, Chile 2098.9×
- 12Ubon RatchathaniUbon Ratchathani, Thailand 2088.9×
- 13LoeiLoei, Thailand 2078.8×
- 14Dera MāndiDelhi, India 2068.7×
- 15NarelaDelhi, India 2058.7×
- 15BāghpatUttar Pradesh, India 2058.7×
- 17GuwahatiAssam, India 2018.4×
- 18MothīhāriBihar, India 1957.9×
- 19GhāziābādUttar Pradesh, India 1937.7×
- 19NanNan, Thailand 1937.7×
- 21OotyTamil Nadu, India 1937.7×
- 22ShenyangLiaoning, China 1907.4×
- 23MungyeongGyeongsangbuk-do, South Korea 1867.1×
- 24DelhiDelhi, India 1867.0×
- 25RourkelaOdisha, India 1856.9×
- 26SukhothaiSukhothai, Thailand 1826.6×
- 28RishīkeshUttarakhand, India 1816.5×
- 29LucknowUttar Pradesh, India 1806.5×
- 30DādriUttar Pradesh, India 1806.4×
- 31RānīganjWest Bengal, India 1796.4×
- 32ĀsansolWest Bengal, India 1796.4×
- 33BulandshahrUttar Pradesh, India 1796.3×
- 34PhraePhrae, Thailand 1786.3×
- 35MandideepMadhya Pradesh, India 1786.3×
- 36PatnaBihar, India 1786.3×
- 37Sakon NakhonSakon Nakhon, Thailand 1776.2×
- 38PurniaBihar, India 1756.0×
- 39Khon KaenKhon Kaen, Thailand 1756.0×
- 40AngulOdisha, India 1756.0×
- 41SaltilloCoahuila, Mexico 1745.9×
- 42LampangLampang, Thailand 1735.8×
- 43YasothonYasothon, Thailand 1735.8×
- 43Nong Bua LamphuNong Bua Lamphu, Thailand 1735.8×
- 45PhayaoPhayao, Thailand 1725.7×
- 46KalasinKalasin, Thailand 1725.7×
- 47SasarāmBihar, India 1715.6×
- 48ChāndaMaharashtra, India 1715.6×
- 49Roi EtRoi Et, Thailand 1715.6×
- 50Chiang RaiChiang Rai, Thailand 1695.5×
- 51BegusaraiBihar, India 1695.4×
- 52MukdahanMukdahan, Thailand 1695.4×
- 53Amnat CharoenAmnat Charoen, Thailand 1685.3×
- 54Udon ThaniUdon Thani, Thailand 1685.3×
- 55AurangābādBihar, India 1675.2×
- 56SamāstipurBihar, India 1675.2×
- 57CholulaPuebla, Mexico 1675.2×
- 58NagpurMaharashtra, India 1665.2×
- 59Mae SaiChiang Rai, Thailand 1665.1×
- 60NajafgarhDelhi, India 1645.0×
- 61Maha SarakhamMaha Sarakham, Thailand 1644.9×
- 62BhiwadiRajasthan, India 1644.9×
- 63UttaraditUttaradit, Thailand 1634.8×
- 64BettiahBihar, India 1634.8×
- 65PāliRajasthan, India 1624.8×
- 66GobindgarhPunjab, India 1624.8×
- 67ChaiyaphumChaiyaphum, Thailand 1624.7×
- 68HāpurUttar Pradesh, India 1624.7×
- 69NoidaUttar Pradesh, India 1614.6×
- 70PhetchabunPhetchabun, Thailand 1614.6×
- 71CoimbatoreTamil Nadu, India 1614.6×
- 72Sri GanganagarRajasthan, India 1614.6×
- 73BelpaharOdisha, India 1604.6×
- 74BharatpurRajasthan, India 1604.6×
- 75Ban ChangRayong, Thailand 1604.5×
- 75SingrauliMadhya Pradesh, India 1604.5×
- 77LaturMaharashtra, India 1604.5×
- 78LamphunLamphun, Thailand 1594.5×
- 79IzunokuniShizuoka, Japan 1594.5×
- 80KanpurUttar Pradesh, India 1594.5×
- 81PhichitPhichit, Thailand 1594.4×
- 82NagaonAssam, India 1584.4×
- 83GayaBihar, India 1584.3×
- 84NumazuShizuoka, Japan 1584.3×
- 85Kamphaeng PhetKamphaeng Phet, Thailand 1574.3×
- 86BarbilOdisha, India 1574.3×
- 87TiruchirappalliTamil Nadu, India 1574.3×
- 88Chai NatChai Nat, Thailand 1574.3×
- 89Buri RamBuriram, Thailand 1564.2×
- 90GorakhpurUttar Pradesh, India 1564.2×
- 91MeerutUttar Pradesh, India 1564.2×
- 92SurinSurin, Thailand 1564.2×
- 93HanumāngarhRajasthan, India 1564.2×
- 93DehradunUttarakhand, India 1564.2×
- 95Nakhon SawanNakhon Sawan, Thailand 1564.2×
- 96BhilaiChhattisgarh, India 1564.1×
- 97ShillongMeghalaya, India 1564.1×
- 98Nakhon RatchasimaNakhon Ratchasima, Thailand 1564.1×
- 99DurgapurWest Bengal, India 1554.1×
- 100JaipurRajasthan, India 1554.1×
- 101ChandigarhChandigarh, India 1554.1×
- 102MuzaffarpurBihar, India 1554.1×
- 103FujiedaShizuoka, Japan 1554.1×
- 104FukuroiShizuoka, Japan 1554.1×
- 105AurangabadMaharashtra, India 1554.1×
- 106T’aebaekGangwon-do, South Korea 1554.0×
- 107KotaRajasthan, India 1544.0×
- 108NegotinCentral Serbia, Serbia 1544.0×
- 109RairangpurOdisha, India 1544.0×
- 110Nong KhaemBangkok, Thailand 1544.0×
- 111JalgaonMaharashtra, India 1544.0×
- 112Lop BuriLopburi, Thailand 1544.0×
- 113FujiShizuoka, Japan 1543.9×
- 114PuneMaharashtra, India 1533.9×
- 115SaharsaBihar, India 1533.9×
- 115AkolaMaharashtra, India 1533.9×
- 117AmritsarPunjab, India 1533.8×
- 118AhmedabadGujarat, India 1523.8×
- 119OwariasahiAichi, Japan 1523.8×
- 120LeskovacCentral Serbia, Serbia 1523.8×
- 120Sawai MadhopurRajasthan, India 1523.8×
- 122MungerBihar, India 1523.8×
- 123ToyotaAichi, Japan 1523.8×
- 124NashikMaharashtra, India 1523.8×
- 124GummidipundiTamil Nadu, India 1523.8×
- 126KariyaAichi, Japan 1513.7×
- 127PithampurMadhya Pradesh, India 1513.7×
- 128ArāriaBihar, India 1513.7×
- 129AgraUttar Pradesh, India 1513.7×
- 130RatchaburiRatchaburi, Thailand 1503.7×
- 130Sing BuriSing Buri, Thailand 1503.7×
- 132AtamiShizuoka, Japan 1503.7×
- 133KohimaNagaland, India 1503.7×
- 134MalegaonMaharashtra, India 1493.7×
- 135SetoAichi, Japan 1493.7×
- 136SusonoShizuoka, Japan 1483.6×
- 137IidaNagano, Japan 1483.6×
- 138Si Sa KetSi Sa Ket, Thailand 1473.6×
- 139Prachin BuriPrachin Buri, Thailand 1463.6×
- 139TaharaAichi, Japan 1463.6×
- 139KosaiShizuoka, Japan 1463.6×
- 142Greater NoidaUttar Pradesh, India 1463.6×
- 143SholapurMaharashtra, India 1463.6×
- 143PatancheruTelangana, India 1463.6×
- 145TōkaiAichi, Japan 1453.6×
- 146ChiryūAichi, Japan 1453.6×
- 147BuxarBihar, India 1443.5×
- 148ShizuokaShizuoka, Japan 1443.5×
- 149DhuleMaharashtra, India 1433.5×
- 150OkazakiAichi, Japan 1433.5×
- 151ProkupljeCentral Serbia, Serbia 1433.5×
- 151JhunjhunūnRajasthan, India 1433.5×
- 153KeonjhargarhOdisha, India 1423.5×
- 153HamamatsuShizuoka, Japan 1423.5×
- 155KakegawaShizuoka, Japan 1413.5×
- 156AmravatiMaharashtra, India 1413.5×
- 157AnkleshwarGujarat, India 1413.4×
- 158Nakhon NayokNakhon Nayok, Thailand 1403.4×
- 158NagoyaAichi, Japan 1403.4×
- 160NisshinAichi, Japan 1403.4×
- 161NandedMaharashtra, India 1403.4×
- 162GangtokSikkim, India 1393.4×
- 163ToyohashiAichi, Japan 1393.4×
- 164NishioAichi, Japan 1393.4×
- 165YamanashiYamanashi, Japan 1383.4×
- 166KanchanaburiKanchanaburi, Thailand 1373.4×
- 166GamagōriAichi, Japan 1373.4×
- 168UdaipurRajasthan, India 1363.3×
- 169BānswāraRajasthan, India 1353.3×
- 170ChāpraBihar, India 1353.3×
- 170ByasanagarOdisha, India 1353.3×
- 172Khlong LuangPathum Thani, Thailand 1343.3×
- 173InaNagano, Japan 1343.3×
- 173SerilingampalleTelangana, India 1343.3×
- 175Si Maha PhotPrachin Buri, Thailand 1343.3×
- 176OtwockMazovia, Poland 1343.2×
- 176GwaliorMadhya Pradesh, India 1343.2×
- 178VapiGujarat, India 1333.2×
- 179MahādMaharashtra, India 1333.2×
- 180Nakhon PathomNakhon Pathom, Thailand 1333.2×
- 181GandhinagarGujarat, India 1333.2×
- 182AnjōAichi, Japan 1323.2×
- 183HamakitaShizuoka, Japan 1323.2×
- 184Chiang MaiChiang Mai, Thailand 1323.2×
- 184SuwaNagano, Japan 1323.2×
- 186NaharlagunArunachal Pradesh, India 1323.2×
- 187Bang Pakonglow-cost sensorsChachoengsao, Thailand 1313.2×
- 188MorādābādUttar Pradesh, India 1313.2×
- 188TratTrat, Thailand 1313.2×
- 190KatiharBihar, India 1293.1×
- 191JhālāwārRajasthan, India 1293.1×
- 192Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand 1283.1×
- 193PhetchaburiPhetchaburi, Thailand 1273.1×
- 193ShimadaShizuoka, Japan 1273.1×
- 195IchinomiyaAichi, Japan 1273.1×
- 196BhelaiChhattisgarh, India 1263.0×
- 196KikugawaShizuoka, Japan 1263.0×
- 198Skarżysko-KamiennaŚwiętokrzyskie, Poland 1263.0×
- 198ShimodaShizuoka, Japan 1263.0×
- 200Czechowice-DziedziceSilesia, Poland 1263.0×
Top 200 of 2,033 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
Not covered: the government monitoring networks of China and Turkey, which publish no terms that let us reuse their readings. Most cities there are missing from this board, not clean. Why.
Use this board
SmogRank, most polluted cities, PM2.5, March 26, 2025, smogrank.com/history/2025-03-26 (accessed 2 Oct 2026).
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