SmogRank / Countries / Canada / December 2023

Most polluted cities in Canada, December 2023

98 cities in Canada ranked by their average PM2.5 over the 31 days. Worst: L'Ancienne-Lorette at 12.3 µg/m³, #334 of 1,889 cities in the world. Cleanest: Medicine Hat at 2.1. A city needs measurements on 70% of the days to be ranked.

  1. 1L'Ancienne-LoretteQuebec
    12.3
  2. 2WindsorOntario
    12.1
  3. 3GranbyQuebec
    10.3
  4. 4HamiltonOntario
    10.1
  5. 4LondonOntario
    10.1
  6. 6Grande PrairieAlberta
    10.0
  7. 7CranbrookBritish Columbia
    9.7
  8. 7SarniaOntario
    9.7
  9. 7WaterdownOntario
    9.7
  10. 10TorontoOntario
    9.6
  11. 11MiltonOntario
    9.5
  12. 12EdmontonAlberta
    9.4
  13. 12KitchenerOntario
    9.4
  14. 12OakvilleOntario
    9.4
  15. 15BrantfordOntario
    9.3
  16. 15CornwallOntario
    9.3
  17. 17CalgaryAlberta
    9.1
  18. 17ChathamOntario
    9.1
  19. 17Prince GeorgeBritish Columbia
    9.1
  20. 17QuébecQuebec
    9.1
  21. 21BrossardQuebec
    9.0
  22. 21GuelphOntario
    9.0
  23. 21SherbrookeQuebec
    9.0
  24. 24St. ThomasOntario
    8.9
  25. 24Trois-RivièresQuebec
    8.9
  26. 26MississaugaOntario
    8.8
  27. 27VernonBritish Columbia
    8.7
  28. 28BramptonOntario
    8.5
  29. 28ReginaSaskatchewan
    8.5
  30. 28St. CatharinesOntario
    8.5
  31. 31DrummondvilleQuebec
    8.3
  32. 31MontréalQuebec
    8.3
  33. 31OttawaOntario
    8.3
  34. 34DuncanBritish Columbia
    8.1
  35. 35Port AlberniBritish Columbia
    7.9
  36. 35Rivière-des-Prairies–Pointe-aux-TremblesQuebec
    7.9
  37. 37BarrieOntario
    7.8
  38. 37KingstonOntario
    7.8
  39. 39DorvalQuebec
    7.7
  40. 39Saint-Jean-sur-RichelieuQuebec
    7.7
  41. 41NewmarketOntario
    7.6
  42. 42BellevilleOntario
    7.5
  43. 42ShawiniganQuebec
    7.5
  44. 44PeterboroughOntario
    7.4
  45. 45BrooklinOntario
    7.2
  46. 46CourtenayBritish Columbia
    7.1
  47. 46SaguenayQuebec
    7.1
  48. 48Prince AlbertSaskatchewan
    7.0
  49. 49EdmundstonNew Brunswick
    6.9
  50. 50FrederictonNew Brunswick
    6.3
  51. 51LangfordBritish Columbia
    6.2
  52. 51TerraceBritish Columbia
    6.2
  53. 51St. John'sNewfoundland and Labrador
    6.2
  54. 54SaskatoonSaskatchewan
    6.1
  55. 55KamloopsBritish Columbia
    6.0
  56. 55MonctonNew Brunswick
    6.0
  57. 55Red DeerAlberta
    6.0
  58. 58St. AlbertAlberta
    5.8
  59. 59WhitehorseYukon
    5.7
  60. 60Sault Ste. MarieOntario
    5.6
  61. 60Thunder BayOntario
    5.6
  62. 62KelownaBritish Columbia
    5.5
  63. 63CharlottetownPrince Edward Island
    5.4
  64. 63Greater SudburyOntario
    5.4
  65. 65SydneyNova Scotia
    5.3
  66. 66Saint JohnNew Brunswick
    5.0
  67. 66VictoriaBritish Columbia
    5.0
  68. 66HarewoodBritish Columbia
    5.0
  69. 69MiramichiNew Brunswick
    4.8
  70. 70Mount PearlNewfoundland and Labrador
    4.7
  71. 71DartmouthNova Scotia
    4.6
  72. 71Fort McMurrayAlberta
    4.6
  73. 71Sherwood ParkAlberta
    4.6
  74. 74North BayOntario
    4.5
  75. 74RichmondBritish Columbia
    4.5
  76. 76AbbotsfordBritish Columbia
    4.4
  77. 77VancouverBritish Columbia
    4.3
  78. 78ChilliwackBritish Columbia
    4.1
  79. 78LangleyBritish Columbia
    4.1
  80. 80Fort St. JohnBritish Columbia
    4.0
  81. 80Rouyn-NorandaQuebec
    4.0
  82. 80Strawberry HillBritish Columbia
    4.0
  83. 83AirdrieAlberta
    3.9
  84. 84Campbell RiverBritish Columbia
    3.7
  85. 84Corner BrookNewfoundland and Labrador
    3.7
  86. 84PentictonBritish Columbia
    3.7
  87. 84Swift CurrentSaskatchewan
    3.7
  88. 88SquamishBritish Columbia
    3.6
  89. 89North CowichanBritish Columbia
    3.4
  90. 90CoquitlamBritish Columbia
    3.3
  91. 91BurnabyBritish Columbia
    3.2
  92. 91DeltaBritish Columbia
    3.2
  93. 93North VancouverBritish Columbia
    2.9
  94. 94LethbridgeAlberta
    2.6
  95. 94NanaimoBritish Columbia
    2.6
  96. 96Port CoquitlamBritish Columbia
    2.5
  97. 96West VancouverBritish Columbia
    2.5
  98. 98Medicine HatAlberta
    2.1
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, December 2023 · Canada now