SmogRank / History / July 9, 2024
Most polluted cities on July 9, 2024
2,324 cities ranked by their average PM2.5 over the day; the worst was Coyhaique, Chile, at 228.0 µg/m³. Each city's own local calendar day.
Bad-air episodes during July 9, 2024. All episodes.
← Coyhaique 228.0 µg/m³
200 µg/m³15 WHO 24-hour guideline
- 1CoyhaiqueAysén, Chile 30615.2×
- 2HualpénBiobio, Chile 22710.1×
- 3BaghdadBaghdad, Iraq 1887.2×
- 4RancaguaO'Higgins Region, Chile 1877.1×
- 5TalcahuanoBiobio, Chile 1836.7×
- 6ChiguayanteBiobio, Chile 1816.6×
- 7Fort McMurrayAlberta, Canada 1766.1×
- 8SantiagoSantiago Metropolitan, Chile 1675.2×
- 9Puerto VarasLos Lagos Region, Chile 1675.2×
- 10Puerto MonttLos Lagos Region, Chile 1675.2×
- 11HualquiBiobio, Chile 1675.2×
- 12Lahorelow-cost sensorsPunjab, Pakistan 1634.8×
- 13CuricóMaule Region, Chile 1614.7×
- 14TemucoAraucania, Chile 1614.7×
- 14RengoO'Higgins Region, Chile 1614.7×
- 16QuillotaValparaiso, Chile 1584.4×
- 17CoronelBiobio, Chile 1574.3×
- 18NacimientoBiobio, Chile 1554.1×
- 19Puerto AysénAysén, Chile 1544.0×
- 20Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan 1543.9×
- 21TalcaMaule Region, Chile 1533.9×
- 22BeijingBeijing, China 1523.8×
- 23San Pedro de la PazBiobio, Chile 1523.8×
- 24ConcepciónBiobio, Chile 1513.7×
- 24CauquenesMaule Region, Chile 1513.7×
- 26QuilpuéValparaiso, Chile 1513.7×
- 27CairoCairo, Egypt 1393.4×
- 28MaputoMaputo City, Mozambique 1283.1×
- 29Kampalalow-cost sensorsCentral Region, Uganda 1263.0×
- 30ShenyangLiaoning, China 1243.0×
- 31Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa 1212.9×
- 32Prince AlbertSaskatchewan, Canada 1202.9×
- 33Dhakalow-cost sensorsDhaka Division, Bangladesh 1162.8×
- 34SaskatoonSaskatchewan, Canada 1152.8×
- 35PúchovTrenčín Region, Slovakia 1112.6×
- 36ChillánÑuble, Chile 1102.6×
- 37Addis AbabaAddis Ababa, Ethiopia 1092.6×
- 38QuinteroValparaiso, Chile 1082.6×
- 39LimaOhio, United States 1082.6×
- 40DelhiDelhi, India 1072.5×
- 41Viña del MarValparaiso, Chile 1072.5×
- 42ValdiviaLos Ríos Region, Chile 1022.4×
- 43Islamabadlow-cost sensorsIslamabad, Pakistan 982.3×
- 44Karachilow-cost sensorsSindh, Pakistan 982.3×
- 44Santa Anita - Los FicusLima region, Peru 982.3×
- 46ChikuseiIbaraki, Japan 952.2×
- 47VillarricaAraucania, Chile 952.2×
- 48La SerenaCoquimbo Region, Chile 932.1×
- 48ToledoOhio, United States 932.1×
- 50SarajevoFederation of B&H, Bosnia and Herzegovina 902.0×
- 51JakartaJakarta, Indonesia 881.9×
- 52Los ÁngelesBiobio, Chile 881.9×
- 53TimaruCanterbury, New Zealand 881.9×
- 53ReginaSaskatchewan, Canada 881.9×
- 55RangioraCanterbury, New Zealand 871.9×
- 56OsornoLos Lagos Region, Chile 851.8×
- 57LimaLima Province, Peru 851.8×
- 58ĆuprijaCentral Serbia, Serbia 851.8×
- 59PécsBaranya, Hungary 851.8×
- 59Falconara MarittimaThe Marches, Italy 851.8×
- 61LotaBiobio, Chile 851.8×
- 62YauriCuzco Department, Peru 841.8×
- 63TsuchiuraIbaraki, Japan 841.8×
- 64MitoIbaraki, Japan 821.7×
- 65ShanghaiShanghai, China 821.7×
- 66Şabāḩ as SālimMubārak al Kabīr, Kuwait 821.7×
- 67KomárnoNitra Region, Slovakia 821.7×
- 68CoquimboCoquimbo Region, Chile 801.7×
- 69Shimo-tsumaIbaraki, Japan 801.6×
- 69La Crescenta-Montroselow-cost sensorsCalifornia, United States 801.6×
- 71DushanbeDushanbe, Tajikistan 801.6×
- 72Valašské MeziříčíZlín, Czechia 791.6×
- 73AricaArica y Parinacota Region, Chile 791.6×
- 74SereďTrnava Region, Slovakia 781.6×
- 75JōsōIbaraki, Japan 781.6×
- 76NakaIbaraki, Japan 781.6×
- 77West MifflinPennsylvania, United States 781.6×
- 78RacibórzSilesia, Poland 771.6×
- 78AyaseKanagawa, Japan 771.6×
- 80SpijkenisseSouth Holland, The Netherlands 771.5×
- 81Kathmandulow-cost sensorsBagmati Province, Nepal 771.5×
- 81BihaćFederation of B&H, Bosnia and Herzegovina 771.5×
- 83Debrecenlow-cost sensorsHajdú-Bihar, Hungary 771.5×
- 83KasamaIbaraki, Japan 771.5×
- 83YachiyoChiba, Japan 771.5×
- 86NitraNitra Region, Slovakia 761.5×
- 86KranjUrban Municipality of Kranj, Slovenia 761.5×
- 88IgusaSaitama, Japan 761.5×
- 88PezinokBratislava Region, Slovakia 761.5×
- 88Carsonlow-cost sensorsCalifornia, United States 761.5×
- 91AntofagastaAntofagasta, Chile 761.5×
- 92Torrancelow-cost sensorsCalifornia, United States 751.5×
- 92Hitachi-NakaIbaraki, Japan 751.5×
- 92KamisuIbaraki, Japan 751.5×
- 95AshgabatAshgabat, Turkmenistan 751.5×
- 95HumennéPrešov Region, Slovakia 751.5×
- 95Banja LukaSrpska, Bosnia and Herzegovina 751.5×
- 98Accralow-cost sensorsGreater Accra, Ghana 751.5×
- 98TocopillaAntofagasta, Chile 751.5×
- 100BanningCalifornia, United States 751.5×
- 101OyamaTochigi, Japan 741.4×
- 101Victoria de DurangoDurango, Mexico 741.4×
- 103HanoiHanoi, Vietnam 741.4×
- 104ChibaChiba, Japan 741.4×
- 104VictorvilleCalifornia, United States 741.4×
- 106OstravaMoravian-Silesian Region, Czechia 741.4×
- 107AgeoSaitama, Japan 741.4×
- 108TarnówLesser Poland, Poland 731.4×
- 108KatowiceSilesia, Poland 731.4×
- 108FontanaCalifornia, United States 731.4×
- 111LjubljanaLjubljana, Slovenia 731.4×
- 112Ulan BatorUlaanbaatar, Mongolia 731.4×
- 113ImaichiTochigi, Japan 721.4×
- 113CallaoCallao, Peru 721.4×
- 113Misato, SaitamaSaitama, Japan 721.4×
- 116Kashima-shiIbaraki, Japan 721.4×
- 116Abujalow-cost sensorsFCT, Nigeria 721.4×
- 116BratislavaBratislava Region, Slovakia 721.4×
- 116CopiapóAtacama, Chile 721.4×
- 120AshburtonCanterbury, New Zealand 721.4×
- 120KamagayaChiba, Japan 721.4×
- 122TokyoTokyo, Japan 721.3×
- 122IndioCalifornia, United States 721.3×
- 122HigashikurumeTokyo, Japan 721.3×
- 122NarashinoChiba, Japan 721.3×
- 126SokchoGangwon-do, South Korea 711.3×
- 126KukichūōSaitama, Japan 711.3×
- 126MookaTochigi, Japan 711.3×
- 129PrešovPrešov Region, Slovakia 711.3×
- 129KōnosuSaitama, Japan 711.3×
- 129IshiokaIbaraki, Japan 711.3×
- 129Bonita SpringsFlorida, United States 711.3×
- 129BandōIbaraki, Japan 711.3×
- 134MumbaiMaharashtra, India 711.3×
- 134San Francisco De BorjaLima region, Peru 711.3×
- 136TrebišovKošice Region, Slovakia 711.3×
- 136NaritaChiba, Japan 711.3×
- 136KrakówLesser Poland, Poland 711.3×
- 136Hawthornelow-cost sensorsCalifornia, United States 711.3×
- 136Grande PrairieAlberta, Canada 711.3×
- 136KodairaTokyo, Japan 711.3×
- 142NodaChiba, Japan 711.3×
- 142TrnavaTrnava Region, Slovakia 711.3×
- 144KazoSaitama, Japan 711.3×
- 144TorideIbaraki, Japan 711.3×
- 144SakuraChiba, Japan 711.3×
- 144InzaiChiba, Japan 711.3×
- 148KofuYamanashi, Japan 701.3×
- 148HavířovMoravian-Silesian Region, Czechia 701.3×
- 148VisaliaCalifornia, United States 701.3×
- 151UrayasuChiba, Japan 701.3×
- 152KanchanaburiKanchanaburi, Thailand 701.3×
- 152KawagoeSaitama, Japan 701.3×
- 152SawaraChiba, Japan 701.3×
- 152Lomitalow-cost sensorsCalifornia, United States 701.3×
- 152Nepeanlow-cost sensorsOntario, Canada 701.3×
- 157TrenčínTrenčín Region, Slovakia 701.3×
- 157PřerovOlomouc Region, Czechia 701.3×
- 157Frýdek-MístekMoravian-Silesian Region, Czechia 701.3×
- 157CalamaAntofagasta, Chile 701.3×
- 157Fort LauderdaleFlorida, United States 701.3×
- 162YaitaTochigi, Japan 691.3×
- 162ChigasakiKanagawa, Japan 691.3×
- 162YachimataChiba, Japan 691.3×
- 162Jastrzębie ZdrójSilesia, Poland 691.3×
- 162NoboritoKanagawa, Japan 691.3×
- 167NiizaSaitama, Japan 691.3×
- 168YokohamaKanagawa, Japan 691.3×
- 168MatsudoChiba, Japan 691.3×
- 168VeniceFlorida, United States 691.3×
- 171HokotaIbaraki, Japan 691.2×
- 171RoveretoTrentino-Alto Adige, Italy 691.2×
- 171KoperUrban Municipality of Koper, Slovenia 691.2×
- 171DuluthMinnesota, United States 691.2×
- 171SuperiorWisconsin, United States 691.2×
- 171NasukarasuyamaTochigi, Japan 691.2×
- 171HigashimurayamaTokyo, Japan 691.2×
- 178SninaPrešov Region, Slovakia 691.2×
- 178MinamirinkanKanagawa, Japan 691.2×
- 178OlomoucOlomouc Region, Czechia 691.2×
- 178Kędzierzyn-KoźleOpole Voivodeship, Poland 691.2×
- 182SōkaSaitama, Japan 691.2×
- 182CeljeUrban Municipality of Celje, Slovenia 691.2×
- 184AjikiChiba, Japan 681.2×
- 184OregonOhio, United States 681.2×
- 186SanoTochigi, Japan 681.2×
- 186KanumaTochigi, Japan 681.2×
- 186AiharaKanagawa, Japan 681.2×
- 186OmigawaChiba, Japan 681.2×
- 186TravnikFederation of B&H, Bosnia and Herzegovina 681.2×
- 186Prince GeorgeBritish Columbia, Canada 681.2×
- 192KawaguchiSaitama, Japan 681.2×
- 192KashiwaChiba, Japan 681.2×
- 192BolzanoTrentino-Alto Adige, Italy 681.2×
- 195FuchūTokyo, Japan 681.2×
- 196NanNan, Thailand 681.2×
- 196KalasinKalasin, Thailand 681.2×
- 196SakadoSaitama, Japan 681.2×
- 196MachidaTokyo, Japan 681.2×
- 196GyōdaSaitama, Japan 681.2×
Top 200 of 2,324 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, July 9, 2024, smogrank.com/history/2024-07-09 (accessed 3 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.