SmogRank / History / May 10, 2024
Most polluted cities on May 10, 2024
2,318 cities ranked by their average PM2.5 over the day; the worst was N'Djamena, Chad, at 166.0 µg/m³. Each city's own local calendar day.
- Biobio and Ñuble, Chile, May 202410 to 12 May 2024, 3 days9 cities139Nacimiento
- Southern United States and Mexico, May 20247 to 10 May 2024, 4 days31 cities55Mission
- Belgium, May 20249 to 10 May 2024, 2 days18 cities39Menen
Bad-air episodes during May 10, 2024. All episodes.
← N'Djamena 166.0 µg/m³
100 µg/m³15 WHO 24-hour guideline
- 1N'DjamenaN’Djaména, Chad 24111.1×
- 2HualpénBiobio, Chile 1978.1×
- 3TlaquepaqueJalisco, Mexico 1937.7×
- 4DushanbeDushanbe, Tajikistan 1917.5×
- 5Lahorelow-cost sensorsPunjab, Pakistan 1907.4×
- 6NacimientoBiobio, Chile 1897.3×
- 7VillarricaAraucania, Chile 1856.9×
- 8Los ÁngelesBiobio, Chile 1826.6×
- 9CoyhaiqueAysén, Chile 1776.1×
- 10Ōyanomachi-noboritateKumamoto, Japan 1766.1×
- 10Puerto VarasLos Lagos Region, Chile 1766.1×
- 12Santa Anita - Los FicusLima region, Peru 1755.9×
- 13ChillánÑuble, Chile 1735.8×
- 14San CarlosÑuble, Chile 1725.7×
- 15CairoCairo, Egypt 1715.6×
- 16BeijingBeijing, China 1665.2×
- 16OsornoLos Lagos Region, Chile 1665.2×
- 18CoronelBiobio, Chile 1655.0×
- 19TemucoAraucania, Chile 1634.8×
- 20DelhiDelhi, India 1624.7×
- 21Ubon RatchathaniUbon Ratchathani, Thailand 1594.4×
- 22Dhakalow-cost sensorsDhaka Division, Bangladesh 1584.3×
- 23TalcahuanoBiobio, Chile 1564.1×
- 24RancaguaO'Higgins Region, Chile 1544.0×
- 24CuricóMaule Region, Chile 1544.0×
- 26CuranilahueBiobio, Chile 1544.0×
- 27CelayaGuanajuato, Mexico 1513.7×
- 28MissionTexas, United States 1503.7×
- 29ChiguayanteBiobio, Chile 1473.6×
- 30San Pedro de la PazBiobio, Chile 1463.6×
- 31Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa 1413.5×
- 32JakartaJakarta, Indonesia 1403.4×
- 33La UniónLos Ríos Region, Chile 1403.4×
- 34TolucaMéxico, Mexico 1353.3×
- 35ToméBiobio, Chile 1353.3×
- 36EdinburgTexas, United States 1343.3×
- 37CatañoCataño, Puerto Rico 1333.2×
- 38ConcepciónBiobio, Chile 1303.2×
- 39MonterreyNuevo León, Mexico 1293.1×
- 40BelmopanCayo District, Belize 1283.1×
- 41RengoO'Higgins Region, Chile 1273.1×
- 42Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan 1263.1×
- 43Heroica MatamorosTamaulipas, Mexico 1263.0×
- 43SantiagoSantiago Metropolitan, Chile 1263.0×
- 45Puerto MonttLos Lagos Region, Chile 1243.0×
- 46NanNan, Thailand 1212.9×
- 47Cadereyta JiménezNuevo León, Mexico 1182.8×
- 48TalcaMaule Region, Chile 1172.8×
- 48CauquenesMaule Region, Chile 1172.8×
- 50Puerto AysénAysén, Chile 1152.7×
- 51Puente AltoSantiago Metropolitan, Chile 1142.7×
- 52Islamabadlow-cost sensorsIslamabad, Pakistan 1132.7×
- 53QuillotaValparaiso, Chile 1122.7×
- 54BaghdadBaghdad, Iraq 1092.6×
- 55MenenFlanders, Belgium 1082.6×
- 56Kathmandulow-cost sensorsBagmati Province, Nepal 1042.5×
- 56MukdahanMukdahan, Thailand 1042.5×
- 56KortrijkFlanders, Belgium 1042.5×
- 59Guatemala CityGuatemala, Guatemala 1032.4×
- 60RoeselareFlanders, Belgium 1022.4×
- 61HanoiHanoi, Vietnam 1002.4×
- 62San Juan del RíoQuerétaro, Mexico 1002.4×
- 63Silao de la VictoriaGuanajuato, Mexico 992.3×
- 64Corpus ChristiTexas, United States 992.3×
- 65ValdiviaLos Ríos Region, Chile 992.3×
- 65San Luis de la PazGuanajuato, Mexico 992.3×
- 67Amnat CharoenAmnat Charoen, Thailand 982.3×
- 68EvergemFlanders, Belgium 962.2×
- 68RabinalBaja Verapaz, Guatemala 962.2×
- 70LimaLima Province, Peru 962.2×
- 71Nakhon RatchasimaNakhon Ratchasima, Thailand 952.2×
- 72LochristiFlanders, Belgium 942.2×
- 73Mae SotTak, Thailand 942.1×
- 73León de los AldamaGuanajuato, Mexico 942.1×
- 75IrapuatoGuanajuato, Mexico 942.1×
- 76GentFlanders, Belgium 932.1×
- 77LampangLampang, Thailand 932.1×
- 78IzegemFlanders, Belgium 932.1×
- 79Mae SaiChiang Rai, Thailand 922.1×
- 80KoksijdeFlanders, Belgium 912.1×
- 81YangonYangon, Myanmar 902.0×
- 82QuilpuéValparaiso, Chile 902.0×
- 82San Miguel de AllendeGuanajuato, Mexico 902.0×
- 84HyderabadTelangana, India 881.9×
- 85PhraePhrae, Thailand 871.9×
- 85GrimbergenFlanders, Belgium 871.9×
- 87Santiago de QuerétaroQuerétaro, Mexico 861.9×
- 88KanchanaburiKanchanaburi, Thailand 861.9×
- 89ZhushanTaiwan, Taiwan 861.8×
- 89MonsWallonia, Belgium 861.8×
- 91ZwijndrechtFlanders, Belgium 851.8×
- 91BrusselsBrussels Capital, Belgium 851.8×
- 93SeonghwanChungcheongnam-do, South Korea 851.8×
- 94CuernavacaMorelos, Mexico 851.8×
- 95Abujalow-cost sensorsFCT, Nigeria 851.8×
- 95TilburgNorth Brabant, The Netherlands 851.8×
- 97JeddahMecca Region, Saudi Arabia 851.8×
- 98UttaraditUttaradit, Thailand 841.8×
- 99SurinSurin, Thailand 841.8×
- 100GuanajuatoGuanajuato, Mexico 831.8×
- 101GuangzhouGuangdong, China 831.8×
- 102Nakhon SawanNakhon Sawan, Thailand 831.7×
- 102MechelenFlanders, Belgium 831.7×
- 104Chiang MaiChiang Mai, Thailand 821.7×
- 105DouliuTaiwan, Taiwan 811.7×
- 105AndenneWallonia, Belgium 811.7×
- 107SukhothaiSukhothai, Thailand 811.7×
- 107BeverenFlanders, Belgium 811.7×
- 109Si Maha PhotPrachin Buri, Thailand 811.7×
- 109MaldegemFlanders, Belgium 811.7×
- 109AntwerpFlanders, Belgium 811.7×
- 109SarajevoFederation of B&H, Bosnia and Herzegovina 811.7×
- 109Viña del MarValparaiso, Chile 811.7×
- 114KalasinKalasin, Thailand 801.7×
- 115Roi EtRoi Et, Thailand 801.6×
- 116StabroekFlanders, Belgium 801.6×
- 117Udon ThaniUdon Thani, Thailand 801.6×
- 117Bang NaBangkok, Thailand 801.6×
- 117ZaventemFlanders, Belgium 801.6×
- 120TournaiWallonia, Belgium 801.6×
- 121Sing BuriSing Buri, Thailand 791.6×
- 122SokchoGangwon-do, South Korea 791.6×
- 122Jacobo HunterArequipa, Peru 791.6×
- 124Khlong Sam WaBangkok, Thailand 791.6×
- 125Chai NatChai Nat, Thailand 791.6×
- 125Flémalle-HauteWallonia, Belgium 791.6×
- 127AntofagastaAntofagasta, Chile 781.6×
- 128AbasoloGuanajuato, Mexico 781.6×
- 129AarschotFlanders, Belgium 781.6×
- 130KolkataWest Bengal, India 781.6×
- 131Chiang RaiChiang Rai, Thailand 771.6×
- 132PuliTaiwan, Taiwan 771.5×
- 132HasseltFlanders, Belgium 771.5×
- 132Eagle PassTexas, United States 771.5×
- 135YeonggwangJeollanam-do, South Korea 771.5×
- 136Donghae CityGangwon-do, South Korea 761.5×
- 137MolFlanders, Belgium 761.5×
- 138UžiceCentral Serbia, Serbia 761.5×
- 139LamphunLamphun, Thailand 761.5×
- 139YeojuGyeonggi-do, South Korea 761.5×
- 139HouthalenFlanders, Belgium 761.5×
- 142Nong KhaemBangkok, Thailand 751.5×
- 142LiègeWallonia, Belgium 751.5×
- 144RidderkerkSouth Holland, The Netherlands 751.5×
- 144WillebroekFlanders, Belgium 751.5×
- 146HayangGyeongsangbuk-do, South Korea 751.5×
- 146QuinteroValparaiso, Chile 751.5×
- 148CheorwonGangwon-do, South Korea 751.5×
- 149Addis AbabaAddis Ababa, Ethiopia 741.4×
- 150Khlong LuangPathum Thani, Thailand 741.4×
- 150YuanlinTaiwan, Taiwan 741.4×
- 150FengshanTakao, Taiwan 741.4×
- 150NamurWallonia, Belgium 741.4×
- 154RatchaburiRatchaburi, Thailand 741.4×
- 154AndongGyeongsangbuk-do, South Korea 741.4×
- 154Villa Poeta José Gálvez BarrenecheaLima region, Peru 741.4×
- 157ChaozhouTaiwan, Taiwan 741.4×
- 157WaegwanGyeongsangbuk-do, South Korea 741.4×
- 159PhichitPhichit, Thailand 741.4×
- 159KapellenFlanders, Belgium 741.4×
- 161Lop BuriLopburi, Thailand 731.4×
- 161NantouTaiwan, Taiwan 731.4×
- 163YeongjuGyeongsangbuk-do, South Korea 731.4×
- 164SpijkenisseSouth Holland, The Netherlands 731.4×
- 164EindhovenNorth Brabant, The Netherlands 731.4×
- 164CharleroiWallonia, Belgium 731.4×
- 167ErlunTaiwan, Taiwan 731.4×
- 167MaassluisSouth Holland, The Netherlands 731.4×
- 167BergheimNorth Rhine-Westphalia, Germany 731.4×
- 170Nong Bua LamphuNong Bua Lamphu, Thailand 721.4×
- 170Wan ChaiWan Chai, Hong Kong 721.4×
- 170Marche-en-FamenneWallonia, Belgium 721.4×
- 173Buri RamBuriram, Thailand 721.4×
- 173BeigangTaiwan, Taiwan 721.4×
- 175Khon KaenKhon Kaen, Thailand 721.4×
- 176RotterdamSouth Holland, The Netherlands 721.4×
- 177Vientianelow-cost sensorsVientiane Prefecture, Laos 721.3×
- 178BakuBaki, Azerbaijan 711.3×
- 178SangjuGyeongsangbuk-do, South Korea 711.3×
- 178GimcheonGyeongsangbuk-do, South Korea 711.3×
- 178TocopillaAntofagasta, Chile 711.3×
- 182IJsselsteinUtrecht, The Netherlands 711.3×
- 182BredaNorth Brabant, The Netherlands 711.3×
- 184Chiayi CityTaiwan, Taiwan 711.3×
- 185Nakhon NayokNakhon Nayok, Thailand 711.3×
- 185Ban Samae DamBangkok, Thailand 711.3×
- 187ConcónValparaiso, Chile 711.3×
- 188PohangGyeongsangbuk-do, South Korea 711.3×
- 188KinzanChungcheongnam-do, South Korea 711.3×
- 188NettetalNorth Rhine-Westphalia, Germany 711.3×
- 191KigaliKigali, Rwanda 701.3×
- 191VigoGalicia, Spain 701.3×
- 191La SerenaCoquimbo Region, Chile 701.3×
- 191Khan Na YaoBangkok, Thailand 701.3×
- 195BangkokBangkok, Thailand 701.3×
- 195KaohsiungTakao, Taiwan 701.3×
- 195JumunjinGangwon-do, South Korea 701.3×
- 195MönchengladbachNorth Rhine-Westphalia, Germany 701.3×
- 199YongkangTaiwan, Taiwan 701.3×
- 200Sakon NakhonSakon Nakhon, Thailand 701.3×
Top 200 of 2,318 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, May 10, 2024, smogrank.com/history/2024-05-10 (accessed 3 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.