SmogRank / Countries / Canada / February 2025

Most polluted cities in Canada, February 2025

92 cities in Canada ranked by their average PM2.5 over the 28 days. Worst: Prince George at 11.7 µg/m³, #700 of 2,012 cities in the world. Cleanest: Airdrie at 2.2. A city needs measurements on 70% of the days to be ranked.

  1. 1Prince GeorgeBritish Columbia
    11.7
  2. 2WindsorOntario
    10.8
  3. 3Sorel-TracyQuebec
    10.5
  4. 4CalgaryAlberta
    9.4
  5. 4EdmontonAlberta
    9.4
  6. 6Port AlberniBritish Columbia
    8.9
  7. 7LangfordBritish Columbia
    8.7
  8. 8VernonBritish Columbia
    8.6
  9. 9TorontoOntario
    8.1
  10. 9L'Ancienne-LoretteQuebec
    8.1
  11. 11HamiltonOntario
    8.0
  12. 12CranbrookBritish Columbia
    7.9
  13. 12SarniaOntario
    7.9
  14. 12Sherwood ParkAlberta
    7.9
  15. 15BrantfordOntario
    7.8
  16. 15LondonOntario
    7.8
  17. 15St. ThomasOntario
    7.8
  18. 18WaterdownOntario
    7.5
  19. 19St. AlbertAlberta
    7.4
  20. 20MiltonOntario
    7.3
  21. 20Red DeerAlberta
    7.3
  22. 22ChathamOntario
    7.2
  23. 22KitchenerOntario
    7.2
  24. 22St. CatharinesOntario
    7.2
  25. 25Trois-RivièresQuebec
    7.1
  26. 26GuelphOntario
    7.0
  27. 26OakvilleOntario
    7.0
  28. 28DorvalQuebec
    6.7
  29. 28KamloopsBritish Columbia
    6.7
  30. 28MississaugaOntario
    6.7
  31. 28MontréalQuebec
    6.7
  32. 28NewmarketOntario
    6.7
  33. 33ShawiniganQuebec
    6.6
  34. 34BramptonOntario
    6.5
  35. 34DrummondvilleQuebec
    6.5
  36. 36WhitehorseYukon
    6.4
  37. 36Rivière-des-Prairies–Pointe-aux-TremblesQuebec
    6.4
  38. 38GranbyQuebec
    6.3
  39. 38TerraceBritish Columbia
    6.3
  40. 40QuébecQuebec
    6.2
  41. 41DuncanBritish Columbia
    6.1
  42. 41KelownaBritish Columbia
    6.1
  43. 41OttawaOntario
    6.1
  44. 41ReginaSaskatchewan
    6.1
  45. 41SaskatoonSaskatchewan
    6.1
  46. 46BrossardQuebec
    6.0
  47. 47Grande PrairieAlberta
    5.9
  48. 47Medicine HatAlberta
    5.9
  49. 47SherbrookeQuebec
    5.9
  50. 47EdmundstonNew Brunswick
    5.9
  51. 51PeterboroughOntario
    5.8
  52. 52AllistonOntario
    5.7
  53. 52BarrieOntario
    5.7
  54. 54BellevilleOntario
    5.5
  55. 54Fort St. JohnBritish Columbia
    5.5
  56. 56LethbridgeAlberta
    5.3
  57. 57Fort McMurrayAlberta
    5.2
  58. 57Prince AlbertSaskatchewan
    5.2
  59. 59KingstonOntario
    5.1
  60. 59VancouverBritish Columbia
    5.1
  61. 61SaguenayQuebec
    5.0
  62. 61Saint-Jean-sur-RichelieuQuebec
    5.0
  63. 63HarewoodBritish Columbia
    4.8
  64. 64RichmondBritish Columbia
    4.7
  65. 64Saint JohnNew Brunswick
    4.7
  66. 64Swift CurrentSaskatchewan
    4.7
  67. 67MonctonNew Brunswick
    4.6
  68. 67Rouyn-NorandaQuebec
    4.6
  69. 69FrederictonNew Brunswick
    4.5
  70. 70VictoriaBritish Columbia
    4.4
  71. 71BurnabyBritish Columbia
    4.1
  72. 72CoquitlamBritish Columbia
    4.0
  73. 72Strawberry HillBritish Columbia
    4.0
  74. 74Greater SudburyOntario
    3.9
  75. 75MiramichiNew Brunswick
    3.8
  76. 75North BayOntario
    3.8
  77. 77CharlottetownPrince Edward Island
    3.7
  78. 77MissionBritish Columbia
    3.7
  79. 79AbbotsfordBritish Columbia
    3.6
  80. 79Campbell RiverBritish Columbia
    3.6
  81. 79ChilliwackBritish Columbia
    3.6
  82. 79LangleyBritish Columbia
    3.6
  83. 79Port CoquitlamBritish Columbia
    3.6
  84. 84SydneyNova Scotia
    3.5
  85. 85DeltaBritish Columbia
    3.4
  86. 85Sault Ste. MarieOntario
    3.4
  87. 87SquamishBritish Columbia
    3.3
  88. 88North VancouverBritish Columbia
    3.2
  89. 89DartmouthNova Scotia
    3.0
  90. 89NanaimoBritish Columbia
    3.0
  91. 91West VancouverBritish Columbia
    2.8
  92. 92AirdrieAlberta
    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, February 2025 · Canada now