SmogRank / Countries / Canada / September 2023

Most polluted cities in Canada, September 2023

96 cities in Canada ranked by their average PM2.5 over the 30 days. Worst: Fort McMurray at 54.2 µg/m³, #4 of 1,830 cities in the world. Cleanest: Whitehorse at 3.1. A city needs measurements on 70% of the days to be ranked.

  1. 1Fort McMurrayAlberta
    54.2
  2. 2Grande PrairieAlberta
    46.1
  3. 3Prince AlbertSaskatchewan
    44.7
  4. 4EdmontonAlberta
    44.6
  5. 5Fort St. JohnBritish Columbia
    41.3
  6. 6SaskatoonSaskatchewan
    40.4
  7. 7ReginaSaskatchewan
    38.8
  8. 8Prince GeorgeBritish Columbia
    29.8
  9. 9Swift CurrentSaskatchewan
    25.4
  10. 10Red DeerAlberta
    25.3
  11. 11St. AlbertAlberta
    25.1
  12. 12Sherwood ParkAlberta
    24.1
  13. 13CalgaryAlberta
    19.4
  14. 14AirdrieAlberta
    14.8
  15. 15Medicine HatAlberta
    14.6
  16. 16BrandonManitoba
    13.2
  17. 17KamloopsBritish Columbia
    13.0
  18. 18SherbrookeQuebec
    11.1
  19. 19LethbridgeAlberta
    11.0
  20. 19SaguenayQuebec
    11.0
  21. 21L'Ancienne-LoretteQuebec
    10.8
  22. 22EdmundstonNew Brunswick
    10.4
  23. 23BrossardQuebec
    10.3
  24. 23CornwallOntario
    10.3
  25. 25GranbyQuebec
    10.2
  26. 25QuébecQuebec
    10.2
  27. 27MontréalQuebec
    10.1
  28. 27VernonBritish Columbia
    10.1
  29. 29LondonOntario
    9.7
  30. 29OakvilleOntario
    9.7
  31. 31OttawaOntario
    9.6
  32. 31WindsorOntario
    9.6
  33. 31St. John'sNewfoundland and Labrador
    9.6
  34. 34BrantfordOntario
    9.5
  35. 35DrummondvilleQuebec
    9.4
  36. 36HamiltonOntario
    9.3
  37. 36MiltonOntario
    9.3
  38. 38BarrieOntario
    9.2
  39. 38KitchenerOntario
    9.2
  40. 38Rivière-des-Prairies–Pointe-aux-TremblesQuebec
    9.2
  41. 41Thunder BayOntario
    9.0
  42. 42KelownaBritish Columbia
    8.9
  43. 43TorontoOntario
    8.8
  44. 44BramptonOntario
    8.7
  45. 44Greater SudburyOntario
    8.7
  46. 44GuelphOntario
    8.7
  47. 44NewmarketOntario
    8.7
  48. 48WaterdownOntario
    8.6
  49. 49PentictonBritish Columbia
    8.5
  50. 50SarniaOntario
    8.4
  51. 50Trois-RivièresQuebec
    8.4
  52. 52DorvalQuebec
    8.3
  53. 52MississaugaOntario
    8.3
  54. 54KingstonOntario
    8.2
  55. 54Saint-Jean-sur-RichelieuQuebec
    8.2
  56. 54ShawiniganQuebec
    8.2
  57. 54St. ThomasOntario
    8.2
  58. 58St. CatharinesOntario
    8.1
  59. 59PeterboroughOntario
    8.0
  60. 59Rouyn-NorandaQuebec
    8.0
  61. 61ChathamOntario
    7.9
  62. 62North BayOntario
    7.6
  63. 63Mount PearlNewfoundland and Labrador
    7.3
  64. 64BellevilleOntario
    7.2
  65. 64Sault Ste. MarieOntario
    7.2
  66. 66ChilliwackBritish Columbia
    7.1
  67. 67Saint JohnNew Brunswick
    7.0
  68. 67SquamishBritish Columbia
    7.0
  69. 69BrooklinOntario
    6.9
  70. 70MiramichiNew Brunswick
    6.8
  71. 70MonctonNew Brunswick
    6.8
  72. 72Strawberry HillBritish Columbia
    6.4
  73. 73CoquitlamBritish Columbia
    6.3
  74. 73CranbrookBritish Columbia
    6.3
  75. 75AbbotsfordBritish Columbia
    6.2
  76. 75VictoriaBritish Columbia
    6.2
  77. 77VancouverBritish Columbia
    6.1
  78. 78CharlottetownPrince Edward Island
    6.0
  79. 78LangfordBritish Columbia
    6.0
  80. 80DuncanBritish Columbia
    5.7
  81. 81West VancouverBritish Columbia
    5.6
  82. 82LangleyBritish Columbia
    5.5
  83. 83BurnabyBritish Columbia
    5.4
  84. 84Corner BrookNewfoundland and Labrador
    5.3
  85. 85North VancouverBritish Columbia
    5.2
  86. 86NanaimoBritish Columbia
    5.1
  87. 87CourtenayBritish Columbia
    4.8
  88. 88Port CoquitlamBritish Columbia
    4.7
  89. 88HarewoodBritish Columbia
    4.7
  90. 90Port AlberniBritish Columbia
    4.6
  91. 90RichmondBritish Columbia
    4.6
  92. 92DeltaBritish Columbia
    4.5
  93. 93TerraceBritish Columbia
    4.2
  94. 94Campbell RiverBritish Columbia
    4.1
  95. 95North CowichanBritish Columbia
    3.5
  96. 96WhitehorseYukon
    3.1
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, September 2023 · Canada now