SmogRank / History / week of May 15, 2023

Most polluted cities, week of May 15, 2023

1,380 cities ranked by their average PM2.5 over the 7 days; the worst was Grande Prairie, Canada, at 266.0 µg/m³. A city needs measurements on 70% of the days to be ranked.

  1. 1Grande PrairieAlberta, Canada
    266.0
  2. 2Ceglie MessapicaApulia, Italy
    178.5
  3. 3Fort St. JohnBritish Columbia, Canada
    128.9
  4. 4EdmontonAlberta, Canada
    121.8
  5. 5Lahorelow-cost sensorsPunjab, Pakistan
    97.9
  6. 5Red DeerAlberta, Canada
    97.9
  7. 7St. AlbertAlberta, Canada
    92.4
  8. 8AirdrieAlberta, Canada
    85.2
  9. 9Fort McMurrayAlberta, Canada
    82.0
  10. 10Prince AlbertSaskatchewan, Canada
    75.1
  11. 11Sherwood ParkAlberta, Canada
    69.7
  12. 12CalgaryAlberta, Canada
    68.9
  13. 13Swift CurrentSaskatchewan, Canada
    66.7
  14. 14DelhiDelhi, India
    66.3
  15. 15Dhakalow-cost sensorsDhaka Division, Bangladesh
    61.1
  16. 16SaskatoonSaskatchewan, Canada
    58.1
  17. 17JakartaJakarta, Indonesia
    54.4
  18. 18DushanbeDushanbe, Tajikistan
    53.0
  19. 19HyderabadTelangana, India
    47.9
  20. 20BaghdadBaghdad, Iraq
    47.2
  21. 21BeijingBeijing, China
    46.4
  22. 22Prince GeorgeBritish Columbia, Canada
    45.2
  23. 23HanoiHanoi, Vietnam
    44.8
  24. 24BismarckNorth Dakota, United States
    44.3
  25. 25Kampalalow-cost sensorsCentral Region, Uganda
    43.4
  26. 26Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    41.9
  27. 27KigaliKigali, Rwanda
    40.9
  28. 28Medicine HatAlberta, Canada
    40.8
  29. 29LethbridgeAlberta, Canada
    37.6
  30. 30ReginaSaskatchewan, Canada
    37.4
  31. 31HelenaMontana, United States
    35.6
  32. 32AntananarivoAnalamanga, Madagascar
    34.4
  33. 33CelayaGuanajuato, Mexico
    33.7
  34. 34Kathmandulow-cost sensorsBagmati Province, Nepal
    33.5
  35. 34GuangzhouGuangdong, China
    33.5
  36. 36Great FallsMontana, United States
    32.3
  37. 37Islamabadlow-cost sensorsIslamabad, Pakistan
    32.1
  38. 38Addis AbabaAddis Ababa, Ethiopia
    31.6
  39. 39Tha BoNong Khai, Thailand
    31.5
  40. 40KamloopsBritish Columbia, Canada
    31.1
  41. 41León de los AldamaGuanajuato, Mexico
    30.8
  42. 42ChennaiTamil Nadu, India
    30.1
  43. 43Rapid CitySouth Dakota, United States
    30.0
  44. 44West FargoNorth Dakota, United States
    29.9
  45. 45RabinalBaja Verapaz, Guatemala
    29.3
  46. 45Guatemala CityGuatemala, Guatemala
    29.3
  47. 47KolkataWest Bengal, India
    28.8
  48. 48LongmontColorado, United States
    28.1
  49. 49SalamancaGuanajuato, Mexico
    28.0
  50. 50ThorntonColorado, United States
    27.1
  51. 51DenverColorado, United States
    26.8
  52. 52GilletteWyoming, United States
    26.6
  53. 53Ken CarylColorado, United States
    25.2
  54. 54CranbrookBritish Columbia, Canada
    25.1
  55. 55CheyenneWyoming, United States
    23.8
  56. 56GreeleyColorado, United States
    23.4
  57. 57SheridanWyoming, United States
    23.3
  58. 58SalorTashkent Region, Uzbekistan
    22.8
  59. 59Silao de la VictoriaGuanajuato, Mexico
    22.6
  60. 60BoulderColorado, United States
    22.5
  61. 61AberdeenSouth Dakota, United States
    21.9
  62. 62WatertownSouth Dakota, United States
    21.8
  63. 63BillingsMontana, United States
    21.5
  64. 64PristinaPristina, Kosovo
    21.2
  65. 65ButteMontana, United States
    20.9
  66. 66VernonBritish Columbia, Canada
    20.5
  67. 67Colorado SpringsColorado, United States
    20.4
  68. 68BozemanMontana, United States
    20.0
  69. 69YangonYangon, Myanmar
    19.7
  70. 69Mexico CityMexico City, Mexico
    19.7
  71. 71Jastrzębie ZdrójSilesia, Poland
    19.6
  72. 71IrapuatoGuanajuato, Mexico
    19.6
  73. 73GuanajuatoGuanajuato, Mexico
    19.3
  74. 74HobbsNew Mexico, United States
    19.2
  75. 75KelownaBritish Columbia, Canada
    18.6
  76. 76ShakopeeMinnesota, United States
    18.3
  77. 77AbasoloGuanajuato, Mexico
    18.2
  78. 77BurnsvilleMinnesota, United States
    18.2
  79. 77Idaho FallsIdaho, United States
    18.2
  80. 80AstanaAstana, Kazakhstan
    18.0
  81. 80FontanaCalifornia, United States
    18.0
  82. 82BrandonManitoba, Canada
    17.9
  83. 83Ciudad JuárezChihuahua, Mexico
    17.7
  84. 83La Crescenta-Montroselow-cost sensorsCalifornia, United States
    17.7
  85. 85ParadiseCalifornia, United States
    17.6
  86. 86Jelenia GóraLower Silesia, Poland
    17.5
  87. 87Karachilow-cost sensorsSindh, Pakistan
    17.3
  88. 88AthensAttica, Greece
    17.1
  89. 88BakuBaki, Azerbaijan
    17.1
  90. 90NišCentral Serbia, Serbia
    16.9
  91. 91LewistonIdaho, United States
    16.8
  92. 92KłodzkoLower Silesia, Poland
    16.7
  93. 92TijuanaBaja California, Mexico
    16.7
  94. 92Grand IslandNebraska, United States
    16.7
  95. 92RiversideCalifornia, United States
    16.7
  96. 96KaliszGreater Poland, Poland
    16.6
  97. 97Apple ValleyMinnesota, United States
    16.4
  98. 97MissoulaMontana, United States
    16.4
  99. 99Fort CollinsColorado, United States
    16.3
  100. 100Jurupa ValleyCalifornia, United States
    16.2
  101. 101RacibórzSilesia, Poland
    16.1
  102. 101RexburgIdaho, United States
    16.1
  103. 103ColomboWestern Province, Sri Lanka
    16.0
  104. 103Saint CloudMinnesota, United States
    16.0
  105. 103LaramieWyoming, United States
    16.0
  106. 106HernandoMississippi, United States
    15.8
  107. 106TexarkanaTexas, United States
    15.8
  108. 106BrookingsSouth Dakota, United States
    15.8
  109. 109MinneapolisMinnesota, United States
    15.7
  110. 110CasperWyoming, United States
    15.6
  111. 111Santa ClaritaCalifornia, United States
    15.5
  112. 112KrefeldNorth Rhine-Westphalia, Germany
    15.4
  113. 112HavířovMoravian-Silesian Region, Czechia
    15.4
  114. 114AcharnésAttica, Greece
    15.3
  115. 114Saint PaulMinnesota, United States
    15.3
  116. 116San Miguel de AllendeGuanajuato, Mexico
    15.2
  117. 116GlendoraCalifornia, United States
    15.2
  118. 118MumbaiMaharashtra, India
    15.1
  119. 118PesaroThe Marches, Italy
    15.1
  120. 118Novi SadVojvodina, Serbia
    15.1
  121. 118BanningCalifornia, United States
    15.1
  122. 118AmarilloTexas, United States
    15.1
  123. 123OpavaMoravian-Silesian Region, Czechia
    15.0
  124. 123WaterlooIowa, United States
    15.0
  125. 125MielecSubcarpathia, Poland
    14.9
  126. 126ConakryConakry, Guinea
    14.8
  127. 126KladnoCentral Bohemia, Czechia
    14.8
  128. 126Český TěšínMoravian-Silesian Region, Czechia
    14.8
  129. 129BelgradeCentral Serbia, Serbia
    14.7
  130. 130SliemaTas-Sliema, Malta
    14.6
  131. 131IndianapolisIndiana, United States
    14.5
  132. 132Ulu BedokSingapore
    14.4
  133. 132San Luis de la PazGuanajuato, Mexico
    14.4
  134. 132Saint MichaelMinnesota, United States
    14.4
  135. 135AsprópyrgosAttica, Greece
    14.2
  136. 135Frýdek-MístekMoravian-Silesian Region, Czechia
    14.2
  137. 137RuseRuse, Bulgaria
    14.1
  138. 137WrocławLower Silesia, Poland
    14.1
  139. 137OmahaNebraska, United States
    14.1
  140. 140Kansas CityKansas, United States
    14.0
  141. 141Banja LukaSrpska, Bosnia and Herzegovina
    13.9
  142. 141East Saint LouisIllinois, United States
    13.9
  143. 143Lagoslow-cost sensorsLagos, Nigeria
    13.8
  144. 143BéthuneHauts-de-France, France
    13.8
  145. 143RochesterMinnesota, United States
    13.8
  146. 146OstravaMoravian-Silesian Region, Czechia
    13.7
  147. 147JeffersonvilleIndiana, United States
    13.6
  148. 147PeoriaIllinois, United States
    13.6
  149. 149KortrijkFlanders, Belgium
    13.5
  150. 150DěčínÚstí nad Labem Region, Czechia
    13.4
  151. 150St. LouisMissouri, United States
    13.4
  152. 150Agouralow-cost sensorsCalifornia, United States
    13.4
  153. 153BogotáBogota D.C., Colombia
    13.3
  154. 153EvansvilleIndiana, United States
    13.3
  155. 153JacksonMississippi, United States
    13.3
  156. 153BurbankCalifornia, United States
    13.3
  157. 153MillcreekUtah, United States
    13.3
  158. 158Queenstown Estatelow-cost sensorsSingapore
    13.2
  159. 159DieppeNormandy, France
    13.1
  160. 159KrakówLesser Poland, Poland
    13.1
  161. 159LincolnNebraska, United States
    13.1
  162. 162WaregemFlanders, Belgium
    13.0
  163. 162EvergemFlanders, Belgium
    13.0
  164. 162KroměřížZlín, Czechia
    13.0
  165. 162RedfordMichigan, United States
    13.0
  166. 162PentictonBritish Columbia, Canada
    13.0
  167. 167IzegemFlanders, Belgium
    12.9
  168. 167RoubaixHauts-de-France, France
    12.9
  169. 167SpringfieldIllinois, United States
    12.9
  170. 167JeffersontownKentucky, United States
    12.9
  171. 171MenenFlanders, Belgium
    12.8
  172. 171HamiltonOntario, Canada
    12.8
  173. 173TřinecMoravian-Silesian Region, Czechia
    12.7
  174. 173KatowiceSilesia, Poland
    12.7
  175. 173LouisvilleKentucky, United States
    12.7
  176. 173NorwoodOhio, United States
    12.7
  177. 173West JordanUtah, United States
    12.7
  178. 178Botevgradlow-cost sensorsSofia, Bulgaria
    12.6
  179. 178Ang Mo Kio New TownSingapore
    12.6
  180. 178OlomoucOlomouc Region, Czechia
    12.6
  181. 178Hradec KrálovéHradec Králové Region, Czechia
    12.6
  182. 178WichitaKansas, United States
    12.6
  183. 178Valley StationKentucky, United States
    12.6
  184. 184SenicaTrnava Region, Slovakia
    12.5
  185. 184BohumínMoravian-Silesian Region, Czechia
    12.5
  186. 184BerounCentral Bohemia, Czechia
    12.5
  187. 184Czechowice-DziedziceSilesia, Poland
    12.5
  188. 184West MifflinPennsylvania, United States
    12.5
  189. 184Hawthornelow-cost sensorsCalifornia, United States
    12.5
  190. 184PortervilleCalifornia, United States
    12.5
  191. 184Salt Lake CityUtah, United States
    12.5
  192. 184Rock SpringsWyoming, United States
    12.5
  193. 193Haskovolow-cost sensorsHaskovo, Bulgaria
    12.4
  194. 193Las Palmas de Gran CanariaCanary Islands, Spain
    12.4
  195. 193KnoxvilleTennessee, United States
    12.4
  196. 193North OgdenUtah, United States
    12.4
  197. 197PiraeusAttica, Greece
    12.3
  198. 197GraysEngland, United Kingdom
    12.3
  199. 197RoeselareFlanders, Belgium
    12.3
  200. 197KadaňÚstí nad Labem Region, Czechia
    12.3

Top 200 of 1,380 shown.

Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+