SmogRank / Countries / Canada / 2023

Most polluted cities in Canada, 2023

75 cities in Canada ranked by their average PM2.5 over the 365 days; 67 above the WHO annual guideline (5.0 µg/m³). Worst: Grande Prairie at 26.9 µg/m³, #21 of 969 cities in the world. Cleanest: Campbell River at 3.6. A city needs measurements on 70% of the days to be ranked.

  1. 1Grande PrairieAlberta
    26.95.4×
  2. 2Fort McMurrayAlberta
    23.84.8×
  3. 3EdmontonAlberta
    22.34.5×
  4. 4Fort St. JohnBritish Columbia
    19.63.9×
  5. 5Red DeerAlberta
    14.72.9×
  6. 6Prince GeorgeBritish Columbia
    14.62.9×
  7. 7St. AlbertAlberta
    14.22.8×
  8. 8KamloopsBritish Columbia
    13.92.8×
  9. 9CalgaryAlberta
    13.12.6×
  10. 10Rouyn-NorandaQuebec
    12.62.5×
  11. 10Sherwood ParkAlberta
    12.62.5×
  12. 12VernonBritish Columbia
    12.02.4×
  13. 13LondonOntario
    11.52.3×
  14. 14HamiltonOntario
    11.22.2×
  15. 15KitchenerOntario
    11.02.2×
  16. 16BrantfordOntario
    10.92.2×
  17. 17SarniaOntario
    10.82.2×
  18. 18AirdrieAlberta
    10.72.1×
  19. 18SaguenayQuebec
    10.72.1×
  20. 18St. ThomasOntario
    10.72.1×
  21. 21Greater SudburyOntario
    10.62.1×
  22. 22OttawaOntario
    10.52.1×
  23. 23BarrieOntario
    10.42.1×
  24. 24CranbrookBritish Columbia
    10.32.1×
  25. 25L'Ancienne-LoretteQuebec
    10.22.0×
  26. 26St. CatharinesOntario
    9.92.0×
  27. 27KelownaBritish Columbia
    9.82.0×
  28. 27North BayOntario
    9.82.0×
  29. 29BellevilleOntario
    9.61.9×
  30. 30CornwallOntario
    9.51.9×
  31. 31PeterboroughOntario
    9.41.9×
  32. 32PentictonBritish Columbia
    9.31.9×
  33. 33GranbyQuebec
    9.11.8×
  34. 33KingstonOntario
    9.11.8×
  35. 33MontréalQuebec
    9.11.8×
  36. 36BrossardQuebec
    8.81.8×
  37. 36DrummondvilleQuebec
    8.81.8×
  38. 38ShawiniganQuebec
    8.61.7×
  39. 39QuébecQuebec
    8.41.7×
  40. 39Rivière-des-Prairies–Pointe-aux-TremblesQuebec
    8.41.7×
  41. 41Medicine HatAlberta
    8.21.6×
  42. 42LethbridgeAlberta
    8.01.6×
  43. 42Saint-Jean-sur-RichelieuQuebec
    8.01.6×
  44. 44DorvalQuebec
    7.71.5×
  45. 44Sault Ste. MarieOntario
    7.71.5×
  46. 46Trois-RivièresQuebec
    7.61.5×
  47. 47St. John'sNewfoundland and Labrador
    7.51.5×
  48. 48EdmundstonNew Brunswick
    7.01.4×
  49. 49HarewoodBritish Columbia
    6.61.3×
  50. 50ChilliwackBritish Columbia
    6.41.3×
  51. 50SquamishBritish Columbia
    6.41.3×
  52. 52DuncanBritish Columbia
    6.31.3×
  53. 52VictoriaBritish Columbia
    6.31.3×
  54. 54Port AlberniBritish Columbia
    6.21.2×
  55. 55CourtenayBritish Columbia
    6.11.2×
  56. 55MonctonNew Brunswick
    6.11.2×
  57. 57TerraceBritish Columbia
    6.01.2×
  58. 58AbbotsfordBritish Columbia
    5.91.2×
  59. 58LangfordBritish Columbia
    5.91.2×
  60. 60Strawberry HillBritish Columbia
    5.71.1×
  61. 61LangleyBritish Columbia
    5.61.1×
  62. 62WhitehorseYukon
    5.41.1×
  63. 63CoquitlamBritish Columbia
    5.31.1×
  64. 64BurnabyBritish Columbia
    5.21.0×
  65. 64MiramichiNew Brunswick
    5.21.0×
  66. 64VancouverBritish Columbia
    5.21.0×
  67. 67Mount PearlNewfoundland and Labrador
    5.11.0×
  68. 68CharlottetownPrince Edward Island
    4.91.0×
  69. 68North VancouverBritish Columbia
    4.91.0×
  70. 68RichmondBritish Columbia
    4.91.0×
  71. 71Port CoquitlamBritish Columbia
    4.70.9×
  72. 72NanaimoBritish Columbia
    4.40.9×
  73. 73DeltaBritish Columbia
    4.30.9×
  74. 74North CowichanBritish Columbia
    4.20.8×
  75. 75Campbell RiverBritish Columbia
    3.60.7×
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, 2023 · Canada now

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SmogRank, most polluted cities in Canada, PM2.5, 2023, smogrank.com/ca/history/2023 (accessed 2 Oct 2026).

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