SmogRank / Countries / Canada / May 2023

Most polluted cities in Canada, May 2023

85 cities in Canada ranked by their average PM2.5 over the 31 days. Worst: Grande Prairie at 85.3 µg/m³, #1 of 1,267 cities in the world. Cleanest: Campbell River at 3.5. A city needs measurements on 70% of the days to be ranked.

  1. 1Grande PrairieAlberta
    85.3
  2. 2Fort St. JohnBritish Columbia
    49.5
  3. 3Fort McMurrayAlberta
    46.4
  4. 4EdmontonAlberta
    41.8
  5. 5Red DeerAlberta
    33.1
  6. 6Prince AlbertSaskatchewan
    32.2
  7. 7St. AlbertAlberta
    31.4
  8. 8AirdrieAlberta
    27.9
  9. 9SaskatoonSaskatchewan
    25.4
  10. 10Sherwood ParkAlberta
    25.1
  11. 11CalgaryAlberta
    24.6
  12. 12Swift CurrentSaskatchewan
    23.6
  13. 13Prince GeorgeBritish Columbia
    19.0
  14. 14ReginaSaskatchewan
    17.4
  15. 15LethbridgeAlberta
    14.2
  16. 16Medicine HatAlberta
    13.7
  17. 17KamloopsBritish Columbia
    12.8
  18. 18HamiltonOntario
    11.7
  19. 19CranbrookBritish Columbia
    10.7
  20. 20BrantfordOntario
    9.3
  21. 21LondonOntario
    9.1
  22. 22VernonBritish Columbia
    8.8
  23. 23BarrieOntario
    8.7
  24. 24ChathamOntario
    8.6
  25. 24TorontoOntario
    8.6
  26. 26KitchenerOntario
    8.3
  27. 27St. ThomasOntario
    8.2
  28. 27HarewoodBritish Columbia
    8.2
  29. 29SquamishBritish Columbia
    7.9
  30. 30KelownaBritish Columbia
    7.8
  31. 31Greater SudburyOntario
    7.5
  32. 31St. CatharinesOntario
    7.5
  33. 33SarniaOntario
    7.3
  34. 34L'Ancienne-LoretteQuebec
    7.1
  35. 35VictoriaBritish Columbia
    7.0
  36. 36MontréalQuebec
    6.9
  37. 36St. John'sNewfoundland and Labrador
    6.9
  38. 38Strawberry HillBritish Columbia
    6.7
  39. 39DrummondvilleQuebec
    6.6
  40. 40BellevilleOntario
    6.5
  41. 41North VancouverBritish Columbia
    6.2
  42. 41SaguenayQuebec
    6.2
  43. 43AbbotsfordBritish Columbia
    6.1
  44. 43BurnabyBritish Columbia
    6.1
  45. 43ChilliwackBritish Columbia
    6.1
  46. 43PeterboroughOntario
    6.1
  47. 43West VancouverBritish Columbia
    6.1
  48. 48CornwallOntario
    6.0
  49. 48Rivière-des-Prairies–Pointe-aux-TremblesQuebec
    6.0
  50. 50CourtenayBritish Columbia
    5.9
  51. 50DorvalQuebec
    5.9
  52. 50OttawaOntario
    5.9
  53. 50ShawiniganQuebec
    5.9
  54. 54BrossardQuebec
    5.8
  55. 54LangleyBritish Columbia
    5.8
  56. 54Saint JohnNew Brunswick
    5.8
  57. 57KingstonOntario
    5.7
  58. 57NanaimoBritish Columbia
    5.7
  59. 57Rouyn-NorandaQuebec
    5.7
  60. 57QuébecQuebec
    5.7
  61. 61CoquitlamBritish Columbia
    5.6
  62. 61PentictonBritish Columbia
    5.6
  63. 61Port CoquitlamBritish Columbia
    5.6
  64. 61RichmondBritish Columbia
    5.6
  65. 61VancouverBritish Columbia
    5.6
  66. 66FrederictonNew Brunswick
    5.3
  67. 66GranbyQuebec
    5.3
  68. 66MonctonNew Brunswick
    5.3
  69. 69Saint-Jean-sur-RichelieuQuebec
    5.2
  70. 69Sault Ste. MarieOntario
    5.2
  71. 71Trois-RivièresQuebec
    5.0
  72. 72TerraceBritish Columbia
    4.9
  73. 73EdmundstonNew Brunswick
    4.8
  74. 74DeltaBritish Columbia
    4.7
  75. 75Port AlberniBritish Columbia
    4.6
  76. 76Mount PearlNewfoundland and Labrador
    4.5
  77. 76North CowichanBritish Columbia
    4.5
  78. 78Corner BrookNewfoundland and Labrador
    4.4
  79. 78North BayOntario
    4.4
  80. 80CharlottetownPrince Edward Island
    4.3
  81. 81LangfordBritish Columbia
    4.2
  82. 81MiramichiNew Brunswick
    4.2
  83. 83WhitehorseYukon
    3.8
  84. 84DuncanBritish Columbia
    3.7
  85. 85Campbell RiverBritish Columbia
    3.5
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, May 2023 · Canada now