SmogRank / Countries / Canada / April 2023

Most polluted cities in Canada, April 2023

76 cities in Canada ranked by their average PM2.5 over the 30 days. Worst: Hamilton at 10.8 µg/m³, #237 of 1,251 cities in the world. Cleanest: North Cowichan at 2.2. A city needs measurements on 70% of the days to be ranked.

  1. 1HamiltonOntario
    10.8
  2. 2St. ThomasOntario
    9.6
  3. 3St. John'sNewfoundland and Labrador
    9.5
  4. 4KitchenerOntario
    9.4
  5. 5LondonOntario
    9.1
  6. 6BrantfordOntario
    9.0
  7. 7SarniaOntario
    8.5
  8. 8SaguenayQuebec
    8.4
  9. 9BarrieOntario
    8.2
  10. 10St. CatharinesOntario
    8.0
  11. 11BellevilleOntario
    7.9
  12. 12Greater SudburyOntario
    7.6
  13. 13DrummondvilleQuebec
    7.5
  14. 14PeterboroughOntario
    7.3
  15. 15MontréalQuebec
    7.2
  16. 16L'Ancienne-LoretteQuebec
    7.0
  17. 17EdmontonAlberta
    6.8
  18. 17OttawaOntario
    6.8
  19. 19Grande PrairieAlberta
    6.6
  20. 19Prince GeorgeBritish Columbia
    6.6
  21. 21CornwallOntario
    6.5
  22. 22DorvalQuebec
    6.2
  23. 22Mount PearlNewfoundland and Labrador
    6.2
  24. 24KingstonOntario
    6.1
  25. 24ShawiniganQuebec
    6.1
  26. 26BrossardQuebec
    6.0
  27. 26St. AlbertAlberta
    6.0
  28. 28VernonBritish Columbia
    5.9
  29. 28QuébecQuebec
    5.9
  30. 30HarewoodBritish Columbia
    5.8
  31. 31GranbyQuebec
    5.7
  32. 31Red DeerAlberta
    5.7
  33. 31Sherwood ParkAlberta
    5.7
  34. 34Sault Ste. MarieOntario
    5.6
  35. 34Rivière-des-Prairies–Pointe-aux-TremblesQuebec
    5.6
  36. 36CranbrookBritish Columbia
    5.4
  37. 36Fort McMurrayAlberta
    5.4
  38. 36KamloopsBritish Columbia
    5.4
  39. 36VictoriaBritish Columbia
    5.4
  40. 40MonctonNew Brunswick
    5.3
  41. 41CalgaryAlberta
    5.1
  42. 41Fort St. JohnBritish Columbia
    5.1
  43. 41Saint-Jean-sur-RichelieuQuebec
    5.1
  44. 41EdmundstonNew Brunswick
    5.1
  45. 45AbbotsfordBritish Columbia
    5.0
  46. 46AirdrieAlberta
    4.9
  47. 47LangleyBritish Columbia
    4.8
  48. 47Rouyn-NorandaQuebec
    4.8
  49. 47WhitehorseYukon
    4.8
  50. 50Trois-RivièresQuebec
    4.7
  51. 51CourtenayBritish Columbia
    4.6
  52. 52LethbridgeAlberta
    4.4
  53. 53CharlottetownPrince Edward Island
    4.3
  54. 53MiramichiNew Brunswick
    4.3
  55. 53Strawberry HillBritish Columbia
    4.3
  56. 56TerraceBritish Columbia
    4.2
  57. 57North VancouverBritish Columbia
    4.1
  58. 58BrandonManitoba
    4.0
  59. 59ChilliwackBritish Columbia
    3.9
  60. 59DeltaBritish Columbia
    3.9
  61. 61BurnabyBritish Columbia
    3.8
  62. 61KelownaBritish Columbia
    3.8
  63. 61Port AlberniBritish Columbia
    3.8
  64. 64DuncanBritish Columbia
    3.7
  65. 64Medicine HatAlberta
    3.7
  66. 66PentictonBritish Columbia
    3.6
  67. 66Port CoquitlamBritish Columbia
    3.6
  68. 66VancouverBritish Columbia
    3.6
  69. 69SquamishBritish Columbia
    3.5
  70. 70RichmondBritish Columbia
    3.4
  71. 71CoquitlamBritish Columbia
    3.1
  72. 71LangfordBritish Columbia
    3.1
  73. 73NanaimoBritish Columbia
    2.7
  74. 74Campbell RiverBritish Columbia
    2.5
  75. 74North BayOntario
    2.5
  76. 76North CowichanBritish Columbia
    2.2
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, April 2023 · Canada now