SmogRank / History / July 10, 2023

Most polluted cities on July 10, 2023

1,502 cities ranked by their average PM2.5 over the day; the worst was Puerto Varas, Chile, at 210.0 µg/m³. Each city's own local calendar day.

← Puerto Varas 210.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for July 10, 2023, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1Puerto VarasLos Lagos Region, Chile
    28514.0×
  2. 2Fort St. JohnBritish Columbia, Canada
    2219.7×
  3. 3OsornoLos Lagos Region, Chile
    1867.1×
  4. 4CuranilahueBiobio, Chile
    1745.9×
  5. 5HualpénBiobio, Chile
    1695.4×
  6. 6CoyhaiqueAysén, Chile
    1685.4×
  7. 7TemucoAraucania, Chile
    1675.3×
  8. 8La UniónLos Ríos Region, Chile
    1644.9×
  9. 9Grande PrairieAlberta, Canada
    1634.8×
  10. 10CoronelBiobio, Chile
    1543.9×
  11. 11Santa Anita - Los FicusLima region, Peru
    1483.6×
  12. 12Puerto AysénAysén, Chile
    1403.4×
  13. 13SantiagoSantiago Metropolitan, Chile
    1393.4×
  14. 14Los ÁngelesBiobio, Chile
    1353.3×
  15. 15TalaganteSantiago Metropolitan, Chile
    1343.3×
  16. 16HualquiBiobio, Chile
    1333.2×
  17. 17Puerto MonttLos Lagos Region, Chile
    1313.2×
  18. 18ValdiviaLos Ríos Region, Chile
    1243.0×
  19. 18San CarlosÑuble, Chile
    1243.0×
  20. 20ChillánÑuble, Chile
    1233.0×
  21. 21LimaLima Province, Peru
    1192.9×
  22. 22Karachilow-cost sensorsSindh, Pakistan
    1182.8×
  23. 23TalcahuanoBiobio, Chile
    1172.8×
  24. 24ManamaManama, Bahrain
    1152.7×
  25. 25Prince GeorgeBritish Columbia, Canada
    1132.7×
  26. 26BamakoBamako, Mali
    1102.6×
  27. 27ToméBiobio, Chile
    1072.5×
  28. 28Addis AbabaAddis Ababa, Ethiopia
    1062.5×
  29. 29CauquenesMaule Region, Chile
    1032.4×
  30. 30Dhakalow-cost sensorsDhaka Division, Bangladesh
    1012.4×
  31. 31TalcaMaule Region, Chile
    962.2×
  32. 32San Francisco De BorjaLima region, Peru
    962.2×
  33. 33CalgaryAlberta, Canada
    952.2×
  34. 34SarajevoFederation of B&H, Bosnia and Herzegovina
    952.2×
  35. 35RancaguaO'Higgins Region, Chile
    952.2×
  36. 36Puente AltoSantiago Metropolitan, Chile
    942.1×
  37. 37RengoO'Higgins Region, Chile
    932.1×
  38. 38LinaresMaule Region, Chile
    922.1×
  39. 39ChiguayanteBiobio, Chile
    912.1×
  40. 40JakartaJakarta, Indonesia
    912.0×
  41. 41EdmontonAlberta, Canada
    902.0×
  42. 42QuillotaValparaiso, Chile
    902.0×
  43. 43AntananarivoAnalamanga, Madagascar
    892.0×
  44. 44Villa Poeta José Gálvez BarrenecheaLima region, Peru
    892.0×
  45. 45CuricóMaule Region, Chile
    892.0×
  46. 46BakuBaki, Azerbaijan
    861.9×
  47. 46ConcepciónBiobio, Chile
    861.9×
  48. 48San Pedro de la PazBiobio, Chile
    861.9×
  49. 49AstanaAstana, Kazakhstan
    861.8×
  50. 50MexicaliBaja California, Mexico
    851.8×
  51. 51SalorTashkent Region, Uzbekistan
    851.8×
  52. 52PristinaPristina, Kosovo
    851.8×
  53. 53Şabāḩ as SālimMubārak al Kabīr, Kuwait
    841.8×
  54. 54Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    821.7×
  55. 55KolkataWest Bengal, India
    791.6×
  56. 56Český TěšínMoravian-Silesian Region, Czechia
    781.6×
  57. 57NaplesCampania, Italy
    781.6×
  58. 58CuencaCastille-La Mancha, Spain
    781.6×
  59. 59AlgiersAlgiers, Algeria
    771.5×
  60. 60Ciudad RealCastille-La Mancha, Spain
    771.5×
  61. 60La SerenaCoquimbo Region, Chile
    771.5×
  62. 60CoquimboCoquimbo Region, Chile
    771.5×
  63. 63Medicine HatAlberta, Canada
    771.5×
  64. 64Red DeerAlberta, Canada
    761.5×
  65. 65Alto HospicioTarapacá, Chile
    761.5×
  66. 66Bonita SpringsFlorida, United States
    761.5×
  67. 67OstravaMoravian-Silesian Region, Czechia
    751.5×
  68. 67BerounCentral Bohemia, Czechia
    751.5×
  69. 69Hradec KrálovéHradec Králové Region, Czechia
    751.5×
  70. 70ShenyangLiaoning, China
    751.5×
  71. 70MostÚstí nad Labem Region, Czechia
    751.5×
  72. 72HoustonTexas, United States
    741.4×
  73. 73ChennaiTamil Nadu, India
    741.4×
  74. 74DushanbeDushanbe, Tajikistan
    741.4×
  75. 74Fort LauderdaleFlorida, United States
    741.4×
  76. 76Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    741.4×
  77. 77Viña del MarValparaiso, Chile
    741.4×
  78. 78BailénAndalusia, Spain
    731.4×
  79. 79ConcónValparaiso, Chile
    731.4×
  80. 80Jastrzębie ZdrójSilesia, Poland
    721.4×
  81. 81PesaroThe Marches, Italy
    721.3×
  82. 82ĆuprijaCentral Serbia, Serbia
    711.3×
  83. 82HyderabadTelangana, India
    711.3×
  84. 82HavířovMoravian-Silesian Region, Czechia
    711.3×
  85. 82BolzanoTrentino-Alto Adige, Italy
    711.3×
  86. 86TrentoTrentino-Alto Adige, Italy
    711.3×
  87. 87DěčínÚstí nad Labem Region, Czechia
    711.3×
  88. 87AntofagastaAntofagasta, Chile
    711.3×
  89. 89TocopillaAntofagasta, Chile
    711.3×
  90. 89HomesteadFlorida, United States
    711.3×
  91. 91GroßostheimBavaria, Germany
    701.3×
  92. 91CalamaAntofagasta, Chile
    701.3×
  93. 93BohumínMoravian-Silesian Region, Czechia
    701.3×
  94. 93RacibórzSilesia, Poland
    701.3×
  95. 95Islamabadlow-cost sensorsIslamabad, Pakistan
    701.3×
  96. 96EisenhüttenstadtBrandenburg, Germany
    691.3×
  97. 96Mladá BoleslavCentral Bohemia, Czechia
    691.3×
  98. 98KadaňÚstí nad Labem Region, Czechia
    691.2×
  99. 99BeijingBeijing, China
    691.2×
  100. 99PraguePrague, Czechia
    691.2×
  101. 99PardubicePardubice Region, Czechia
    691.2×
  102. 102Frýdek-MístekMoravian-Silesian Region, Czechia
    691.2×
  103. 103KanchanaburiKanchanaburi, Thailand
    681.2×
  104. 103PřerovOlomouc Region, Czechia
    681.2×
  105. 105HuelvaAndalusia, Spain
    681.2×
  106. 105OlomoucOlomouc Region, Czechia
    681.2×
  107. 105KladnoCentral Bohemia, Czechia
    681.2×
  108. 108São PauloSão Paulo, Brazil
    681.2×
  109. 109QuinteroValparaiso, Chile
    681.2×
  110. 109MiamiFlorida, United States
    681.2×
  111. 111ValdemoroMadrid, Spain
    681.2×
  112. 111LotaBiobio, Chile
    681.2×
  113. 113PilsenPlzeň Region, Czechia
    671.2×
  114. 114ŽideniceSouth Moravian, Czechia
    671.2×
  115. 114El CentroCalifornia, United States
    671.2×
  116. 116Khlong LuangPathum Thani, Thailand
    671.2×
  117. 116VeniceFlorida, United States
    671.2×
  118. 116BaytownTexas, United States
    671.2×
  119. 116PasadenaTexas, United States
    671.2×
  120. 120Romans-sur-IsèreAuvergne-Rhône-Alpes, France
    661.2×
  121. 121LiberecLiberec Region, Czechia
    661.1×
  122. 121RoveretoTrentino-Alto Adige, Italy
    661.1×
  123. 121Sherwood ParkAlberta, Canada
    661.1×
  124. 124Lagoslow-cost sensorsLagos, Nigeria
    661.1×
  125. 124JaénAndalusia, Spain
    661.1×
  126. 124DavieFlorida, United States
    661.1×
  127. 127TřinecMoravian-Silesian Region, Czechia
    661.1×
  128. 127AlessandriaPiedmont, Italy
    661.1×
  129. 127SalamancaGuanajuato, Mexico
    661.1×
  130. 130Schwandorf in BayernBavaria, Germany
    661.1×
  131. 131MostaIl-Mosta, Malta
    651.1×
  132. 131AlbertvilleAuvergne-Rhône-Alpes, France
    651.1×
  133. 133RatchaburiRatchaburi, Thailand
    651.1×
  134. 133DelhiDelhi, India
    651.1×
  135. 133Port ArthurTexas, United States
    651.1×
  136. 136BambergBavaria, Germany
    651.1×
  137. 136GrenobleAuvergne-Rhône-Alpes, France
    651.1×
  138. 136KroměřížZlín, Czechia
    651.1×
  139. 136GalvestonTexas, United States
    651.1×
  140. 140Kathmandulow-cost sensorsBagmati Province, Nepal
    651.1×
  141. 140Ústí nad LabemÚstí nad Labem Region, Czechia
    651.1×
  142. 140CelayaGuanajuato, Mexico
    651.1×
  143. 143TepliceÚstí nad Labem Region, Czechia
    651.1×
  144. 143Missouri CityTexas, United States
    651.1×
  145. 145Klagenfurt am WörtherseeCarinthia, Austria
    641.1×
  146. 145PisaTuscany, Italy
    641.1×
  147. 145CopiapóAtacama, Chile
    641.1×
  148. 148ZnojmoSouth Moravian, Czechia
    641.1×
  149. 148SokolovCarlsbad Region, Czechia
    641.1×
  150. 150Valašské MeziříčíZlín, Czechia
    641.1×
  151. 150OpavaMoravian-Silesian Region, Czechia
    641.1×
  152. 152LivornoTuscany, Italy
    641.1×
  153. 153SallanchesAuvergne-Rhône-Alpes, France
    631.1×
  154. 153FlorenceTuscany, Italy
    631.1×
  155. 153Coconut CreekFlorida, United States
    631.1×
  156. 153Delray BeachFlorida, United States
    631.1×
  157. 153East LakeFlorida, United States
    631.1×
  158. 158SaalfeldThuringia, Germany
    631.0×
  159. 158Jelenia GóraLower Silesia, Poland
    631.0×
  160. 158Deerfield BeachFlorida, United States
    631.0×
  161. 161San RoqueAndalusia, Spain
    631.0×
  162. 161Kędzierzyn-KoźleOpole Voivodeship, Poland
    631.0×
  163. 161Jurupa ValleyCalifornia, United States
    631.0×
  164. 164ColomboWestern Province, Sri Lanka
    631.0×
  165. 164GardanneProvence-Alpes-Côte d'Azur, France
    631.0×
  166. 164GapProvence-Alpes-Côte d'Azur, France
    631.0×
  167. 164ZlínZlín, Czechia
    631.0×
  168. 164LitvínovÚstí nad Labem Region, Czechia
    631.0×
  169. 164Czechowice-DziedziceSilesia, Poland
    631.0×
  170. 170GrazStyria, Austria
    631.0×
  171. 170ChambéryAuvergne-Rhône-Alpes, France
    631.0×
  172. 170České BudějoviceSouth Bohemian Region, Czechia
    631.0×
  173. 170BrnoSouth Moravian, Czechia
    631.0×
  174. 170CatañoCataño, Puerto Rico
    631.0×
  175. 175SpeyerRheinland-Pfalz, Germany
    621.0×
  176. 175AschaffenburgBavaria, Germany
    621.0×
  177. 175AnnecyAuvergne-Rhône-Alpes, France
    621.0×
  178. 175WestonFlorida, United States
    621.0×
  179. 175ConroeTexas, United States
    621.0×
  180. 175Mission BendTexas, United States
    621.0×
  181. 175St. AlbertAlberta, Canada
    621.0×
  182. 182CártamaAndalusia, Spain
    621.0×
  183. 182TurinPiedmont, Italy
    621.0×
  184. 184MarseilleProvence-Alpes-Côte d'Azur, France
    621.0×
  185. 184Los AngelesCalifornia, United States
    621.0×
  186. 184RiversideCalifornia, United States
    621.0×
  187. 187MeylanAuvergne-Rhône-Alpes, France
    621.0×
  188. 187KatowiceSilesia, Poland
    621.0×
  189. 187Banja LukaSrpska, Bosnia and Herzegovina
    621.0×
  190. 190SulphurLouisiana, United States
    611.0×
  191. 190AustinTexas, United States
    611.0×
  192. 192WeidenBavaria, Germany
    611.0×
  193. 192Limburg an der LahnHesse, Germany
    611.0×
  194. 192Frankfurt (Oder)Brandenburg, Germany
    611.0×
  195. 192HollandMichigan, United States
    611.0×
  196. 196Bang Bo DistrictSamut Prakan, Thailand
    611.0×
  197. 196CórdobaAndalusia, Spain
    611.0×
  198. 196WolfsbergCarinthia, Austria
    611.0×
  199. 196CottbusBrandenburg, Germany
    611.0×
  200. 196MiędzyrzeczLubusz, Poland
    611.0×

Top 200 of 1,502 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, July 10, 2023, smogrank.com/history/2023-07-10 (accessed 2 Oct 2026).

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