SmogRank / History / June 18, 2023

Most polluted cities on June 18, 2023

1,557 cities ranked by their average PM2.5 over the day; the worst was Curanilahue, Chile, at 169.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during June 18, 2023. All episodes.

← Curanilahue 169.0 µg/m³ 150 µg/m³15 WHO 24-hour guideline
Every city ranked for June 18, 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. 1CuranilahueBiobio, Chile
    24411.3×
  2. 2San CarlosÑuble, Chile
    2219.7×
  3. 3TemucoAraucania, Chile
    2189.5×
  4. 4Puerto MonttLos Lagos Region, Chile
    2119.1×
  5. 5HualpénBiobio, Chile
    2018.4×
  6. 6ChillánÑuble, Chile
    2018.4×
  7. 7Puerto VarasLos Lagos Region, Chile
    1927.6×
  8. 8Los ÁngelesBiobio, Chile
    1806.4×
  9. 9ThembisaGauteng, South Africa
    1776.2×
  10. 10RancaguaO'Higgins Region, Chile
    1735.8×
  11. 11OsornoLos Lagos Region, Chile
    1735.7×
  12. 12Lahorelow-cost sensorsPunjab, Pakistan
    1725.7×
  13. 13HualquiBiobio, Chile
    1685.4×
  14. 14TalaganteSantiago Metropolitan, Chile
    1675.2×
  15. 15SantiagoSantiago Metropolitan, Chile
    1645.0×
  16. 16CoronelBiobio, Chile
    1644.9×
  17. 17CoyhaiqueAysén, Chile
    1644.9×
  18. 18CauquenesMaule Region, Chile
    1634.9×
  19. 19TalcahuanoBiobio, Chile
    1634.9×
  20. 20RengoO'Higgins Region, Chile
    1614.6×
  21. 21La UniónLos Ríos Region, Chile
    1604.6×
  22. 22JohannesburgGauteng, South Africa
    1594.4×
  23. 23TlaquepaqueJalisco, Mexico
    1584.4×
  24. 24North BayOntario, Canada
    1544.0×
  25. 25SasolburgFree State, South Africa
    1544.0×
  26. 26Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1543.9×
  27. 27Ciudad Benito JuárezNuevo León, Mexico
    1543.9×
  28. 28Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1513.7×
  29. 29KigaliKigali, Rwanda
    1493.7×
  30. 30JakartaJakarta, Indonesia
    1463.6×
  31. 31BrakpanGauteng, South Africa
    1443.5×
  32. 32CuricóMaule Region, Chile
    1413.5×
  33. 33Dhakalow-cost sensorsDhaka Division, Bangladesh
    1403.4×
  34. 34LinaresMaule Region, Chile
    1293.1×
  35. 35QuillotaValparaiso, Chile
    1293.1×
  36. 36Tepeji del Río de OcampoHidalgo, Mexico
    1293.1×
  37. 37GuadalajaraJalisco, Mexico
    1263.1×
  38. 38DushanbeDushanbe, Tajikistan
    1222.9×
  39. 39ValdiviaLos Ríos Region, Chile
    1212.9×
  40. 40LotaBiobio, Chile
    1172.8×
  41. 41Addis AbabaAddis Ababa, Ethiopia
    1162.8×
  42. 42ConcepciónBiobio, Chile
    1152.8×
  43. 43Viña del MarValparaiso, Chile
    1152.7×
  44. 44Karachilow-cost sensorsSindh, Pakistan
    1132.7×
  45. 44Puente AltoSantiago Metropolitan, Chile
    1132.7×
  46. 46LimaLima Province, Peru
    1132.7×
  47. 47MiddelburgMpumalanga, South Africa
    1132.7×
  48. 48Islamabadlow-cost sensorsIslamabad, Pakistan
    1122.7×
  49. 49SalamancaGuanajuato, Mexico
    1122.7×
  50. 50ToméBiobio, Chile
    1112.6×
  51. 51Rouyn-NorandaQuebec, Canada
    1102.6×
  52. 52IndianapolisIndiana, United States
    1092.6×
  53. 53ChiguayanteBiobio, Chile
    1082.6×
  54. 54TalcaMaule Region, Chile
    1082.6×
  55. 54San Pedro de la PazBiobio, Chile
    1082.6×
  56. 56South BendIndiana, United States
    1082.5×
  57. 57ConcónValparaiso, Chile
    1062.5×
  58. 58DublinOhio, United States
    1052.5×
  59. 59Saint MatthewsKentucky, United States
    1042.4×
  60. 60HyderabadTelangana, India
    1042.4×
  61. 60ElizabethtownKentucky, United States
    1042.4×
  62. 62MiddletownOhio, United States
    1012.4×
  63. 63León de los AldamaGuanajuato, Mexico
    992.3×
  64. 64ManamaManama, Bahrain
    992.3×
  65. 64JeffersonvilleIndiana, United States
    992.3×
  66. 66AppletonWisconsin, United States
    992.3×
  67. 67CheektowagaNew York, United States
    982.3×
  68. 68SpringfieldOhio, United States
    982.3×
  69. 69Green BayWisconsin, United States
    972.3×
  70. 70West MifflinPennsylvania, United States
    972.2×
  71. 71DaytonOhio, United States
    962.2×
  72. 72AndersonIndiana, United States
    952.2×
  73. 73CelayaGuanajuato, Mexico
    952.2×
  74. 73NorwoodOhio, United States
    952.2×
  75. 73MilwaukeeWisconsin, United States
    952.2×
  76. 76Valley StationKentucky, United States
    942.2×
  77. 77Terre HauteIndiana, United States
    942.1×
  78. 78CincinnatiOhio, United States
    942.1×
  79. 79LublinLublin, Poland
    932.1×
  80. 79Ga-RankuwaNorth West, South Africa
    932.1×
  81. 79LouisvilleKentucky, United States
    932.1×
  82. 79WaukeshaWisconsin, United States
    932.1×
  83. 83SalorTashkent Region, Uzbekistan
    932.1×
  84. 84PeterboroughOntario, Canada
    932.1×
  85. 85St. CatharinesOntario, Canada
    932.1×
  86. 86QuinteroValparaiso, Chile
    932.1×
  87. 86GainesvilleGeorgia, United States
    932.1×
  88. 88East ChicagoIndiana, United States
    932.1×
  89. 89Santa CatarinaNuevo León, Mexico
    922.1×
  90. 90Calumet CityIllinois, United States
    922.1×
  91. 91ElkhartIndiana, United States
    912.1×
  92. 91HammondIndiana, United States
    912.1×
  93. 93JolietIllinois, United States
    912.0×
  94. 93BuffaloNew York, United States
    912.0×
  95. 95JeffersontownKentucky, United States
    912.0×
  96. 95Fort St. JohnBritish Columbia, Canada
    912.0×
  97. 97SpartanburgSouth Carolina, United States
    912.0×
  98. 97NapervilleIllinois, United States
    912.0×
  99. 99ConwaySouth Carolina, United States
    902.0×
  100. 99MadisonWisconsin, United States
    902.0×
  101. 101PristinaPristina, Kosovo
    902.0×
  102. 101Des PlainesIllinois, United States
    902.0×
  103. 101South MilwaukeeWisconsin, United States
    902.0×
  104. 104AshlandKentucky, United States
    881.9×
  105. 104MasonOhio, United States
    881.9×
  106. 104Saint AndrewsSouth Carolina, United States
    881.9×
  107. 104Santa Anita - Los FicusLima region, Peru
    881.9×
  108. 108MonterreyNuevo León, Mexico
    881.9×
  109. 108FlorenceSouth Carolina, United States
    881.9×
  110. 110Fort ThomasKentucky, United States
    881.9×
  111. 111PortageIndiana, United States
    881.9×
  112. 112BloomingtonIndiana, United States
    871.9×
  113. 112LebanonOhio, United States
    871.9×
  114. 114New AlbanyIndiana, United States
    871.9×
  115. 114BensalemPennsylvania, United States
    871.9×
  116. 116CaryIllinois, United States
    871.9×
  117. 117PhiladelphiaPennsylvania, United States
    861.9×
  118. 118KolkataWest Bengal, India
    861.9×
  119. 118ClintonIowa, United States
    861.9×
  120. 120East RidgeTennessee, United States
    861.8×
  121. 120BloomingtonIllinois, United States
    861.8×
  122. 122XonacatlánMéxico, Mexico
    851.8×
  123. 123KnoxvilleTennessee, United States
    851.8×
  124. 123NorthbrookIllinois, United States
    851.8×
  125. 123Jardines de la SillaNuevo León, Mexico
    851.8×
  126. 126Winston-SalemNorth Carolina, United States
    851.8×
  127. 126KenmoreNew York, United States
    851.8×
  128. 126CantonOhio, United States
    851.8×
  129. 129GreenvilleSouth Carolina, United States
    851.8×
  130. 130RockfordIllinois, United States
    851.8×
  131. 131San Luis de la PazGuanajuato, Mexico
    851.8×
  132. 131ClevelandOhio, United States
    851.8×
  133. 133AkronOhio, United States
    841.8×
  134. 134SiedlceMazovia, Poland
    841.8×
  135. 134DecaturIllinois, United States
    841.8×
  136. 136RaleighNorth Carolina, United States
    841.8×
  137. 137Cadereyta JiménezNuevo León, Mexico
    841.8×
  138. 137LawrencevilleGeorgia, United States
    841.8×
  139. 139CoquimboCoquimbo Region, Chile
    841.8×
  140. 139LafayetteIndiana, United States
    841.8×
  141. 141AntananarivoAnalamanga, Madagascar
    831.8×
  142. 141ChennaiTamil Nadu, India
    831.8×
  143. 141Lexington-FayetteKentucky, United States
    831.8×
  144. 141CharlottesvilleVirginia, United States
    831.8×
  145. 141RichmondVirginia, United States
    831.8×
  146. 141RoanokeVirginia, United States
    831.8×
  147. 147Ciudad General EscobedoNuevo León, Mexico
    831.8×
  148. 147TorontoOntario, Canada
    831.8×
  149. 149KaiserslauternRheinland-Pfalz, Germany
    831.7×
  150. 149ClemmonsNorth Carolina, United States
    831.7×
  151. 151San Mateo AtencoMéxico, Mexico
    831.7×
  152. 151ChattanoogaTennessee, United States
    831.7×
  153. 151Franklin ParkIllinois, United States
    831.7×
  154. 154ChesterPennsylvania, United States
    821.7×
  155. 155EvansvilleIndiana, United States
    821.7×
  156. 155OwensboroKentucky, United States
    821.7×
  157. 155PennsaukenNew Jersey, United States
    821.7×
  158. 155ChicagoIllinois, United States
    821.7×
  159. 159KingsportTennessee, United States
    821.7×
  160. 160GreenvilleNorth Carolina, United States
    821.7×
  161. 161GaryIndiana, United States
    811.7×
  162. 162La CrosseWisconsin, United States
    811.7×
  163. 163San Miguel de AllendeGuanajuato, Mexico
    811.7×
  164. 163East HamptonVirginia, United States
    811.7×
  165. 163KokomoIndiana, United States
    811.7×
  166. 163Candler-McAfeeGeorgia, United States
    811.7×
  167. 167GreensboroNorth Carolina, United States
    811.7×
  168. 167LancasterPennsylvania, United States
    811.7×
  169. 167LondonOntario, Canada
    811.7×
  170. 170SarajevoFederation of B&H, Bosnia and Herzegovina
    801.7×
  171. 170FayettevilleNorth Carolina, United States
    801.7×
  172. 170NorristownPennsylvania, United States
    801.7×
  173. 170HamiltonOntario, Canada
    801.7×
  174. 174PortsmouthEngland, United Kingdom
    801.7×
  175. 175MexicaliBaja California, Mexico
    801.6×
  176. 176AugustaGeorgia, United States
    801.6×
  177. 176SteubenvilleOhio, United States
    801.6×
  178. 176WilkinsburgPennsylvania, United States
    801.6×
  179. 176BellevilleOntario, Canada
    801.6×
  180. 180La SerenaCoquimbo Region, Chile
    801.6×
  181. 180CopiapóAtacama, Chile
    801.6×
  182. 180AntofagastaAntofagasta, Chile
    801.6×
  183. 180ZionIllinois, United States
    801.6×
  184. 180EriePennsylvania, United States
    801.6×
  185. 180ReadingPennsylvania, United States
    801.6×
  186. 186WilmingtonDelaware, United States
    801.6×
  187. 187WarrenOhio, United States
    791.6×
  188. 187Eau ClaireWisconsin, United States
    791.6×
  189. 189GuanajuatoGuanajuato, Mexico
    791.6×
  190. 189FishersIndiana, United States
    791.6×
  191. 189ClaytonNorth Carolina, United States
    791.6×
  192. 192LebanonPennsylvania, United States
    791.6×
  193. 193Santiago de QuerétaroQuerétaro, Mexico
    791.6×
  194. 194HopewellVirginia, United States
    791.6×
  195. 195GahannaOhio, United States
    781.6×
  196. 196AtlantaGeorgia, United States
    781.6×
  197. 196ColumbusIndiana, United States
    781.6×
  198. 198ShenyangLiaoning, China
    771.5×
  199. 199NairobiNairobi County, Kenya
    771.5×
  200. 199Rose HillVirginia, United States
    771.5×

Top 200 of 1,557 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, June 18, 2023, smogrank.com/history/2023-06-18 (accessed 2 Oct 2026).

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