SmogRank / Countries / Canada / June 2026

Most polluted cities in Canada, June 2026

95 cities in Canada ranked by their average PM2.5 over the 30 days. Worst: Nepean at 10.7 µg/m³, #332 of 1,918 cities in the world. Cleanest: Campbell River at 1.4. A city needs measurements on 70% of the days to be ranked.

  1. 1Nepeanlow-cost sensorsOntario
    10.7
  2. 2Fort McMurrayAlberta
    8.7
  3. 3Sorel-TracyQuebec
    8.4
  4. 4L'Ancienne-LoretteQuebec
    8.2
  5. 5ShawiniganQuebec
    7.9
  6. 6BrossardQuebec
    7.5
  7. 7BrantfordOntario
    7.3
  8. 8SaguenayQuebec
    7.1
  9. 8QuébecQuebec
    7.1
  10. 10EdmontonAlberta
    7.0
  11. 10MontréalQuebec
    7.0
  12. 12HamiltonOntario
    6.9
  13. 12MiltonOntario
    6.9
  14. 14TorontoOntario
    6.8
  15. 14Trois-RivièresQuebec
    6.8
  16. 16CornwallOntario
    6.7
  17. 17EdmundstonNew Brunswick
    6.6
  18. 18GranbyQuebec
    6.5
  19. 18NewmarketOntario
    6.5
  20. 18Prince AlbertSaskatchewan
    6.5
  21. 21BarrieOntario
    6.4
  22. 21CalgaryAlberta
    6.4
  23. 21DrummondvilleQuebec
    6.4
  24. 21OakvilleOntario
    6.4
  25. 25Red DeerAlberta
    6.3
  26. 25Sept-ÎlesQuebec
    6.3
  27. 25WindsorOntario
    6.3
  28. 25Rivière-des-Prairies–Pointe-aux-TremblesQuebec
    6.3
  29. 29LondonOntario
    6.1
  30. 29Rouyn-NorandaQuebec
    6.1
  31. 29WaterdownOntario
    6.1
  32. 32Gatineaulow-cost sensorsQuebec
    6.0
  33. 32GuelphOntario
    6.0
  34. 32St. ThomasOntario
    6.0
  35. 35OttawaOntario
    5.9
  36. 35Saint-Jean-sur-RichelieuQuebec
    5.9
  37. 37BramptonOntario
    5.8
  38. 37KingstonOntario
    5.8
  39. 37KitchenerOntario
    5.8
  40. 37North BayOntario
    5.8
  41. 37SarniaOntario
    5.8
  42. 37Sault Ste. MarieOntario
    5.8
  43. 43BellevilleOntario
    5.7
  44. 43MississaugaOntario
    5.7
  45. 45Greater SudburyOntario
    5.6
  46. 45SherbrookeQuebec
    5.6
  47. 47Prince GeorgeBritish Columbia
    5.4
  48. 47St. CatharinesOntario
    5.4
  49. 49Saint JohnNew Brunswick
    5.3
  50. 49VictoriaBritish Columbia
    5.3
  51. 51AirdrieAlberta
    5.2
  52. 51AllistonOntario
    5.2
  53. 51St. AlbertAlberta
    5.2
  54. 54ChathamOntario
    5.1
  55. 55SaskatoonSaskatchewan
    5.0
  56. 56MiramichiNew Brunswick
    4.9
  57. 57FrederictonNew Brunswick
    4.8
  58. 57Sherwood ParkAlberta
    4.8
  59. 57SquamishBritish Columbia
    4.8
  60. 60MonctonNew Brunswick
    4.7
  61. 60PeterboroughOntario
    4.7
  62. 62Fort St. JohnBritish Columbia
    4.6
  63. 62ReginaSaskatchewan
    4.6
  64. 64Grande PrairieAlberta
    4.4
  65. 64NanaimoBritish Columbia
    4.4
  66. 66AbbotsfordBritish Columbia
    4.3
  67. 67ChilliwackBritish Columbia
    4.2
  68. 67LangfordBritish Columbia
    4.2
  69. 69KamloopsBritish Columbia
    4.1
  70. 70VancouverBritish Columbia
    4.0
  71. 71CoquitlamBritish Columbia
    3.9
  72. 71LethbridgeAlberta
    3.9
  73. 71Port CoquitlamBritish Columbia
    3.9
  74. 71VernonBritish Columbia
    3.9
  75. 71HarewoodBritish Columbia
    3.9
  76. 76BurnabyBritish Columbia
    3.8
  77. 76DuncanBritish Columbia
    3.8
  78. 76LangleyBritish Columbia
    3.8
  79. 76Medicine HatAlberta
    3.8
  80. 76Strawberry HillBritish Columbia
    3.8
  81. 81DartmouthNova Scotia
    3.7
  82. 81RichmondBritish Columbia
    3.7
  83. 83DeltaBritish Columbia
    3.6
  84. 83SydneyNova Scotia
    3.6
  85. 85CharlottetownPrince Edward Island
    3.4
  86. 85Swift CurrentSaskatchewan
    3.4
  87. 85TerraceBritish Columbia
    3.4
  88. 85Winnipeglow-cost sensorsManitoba
    3.4
  89. 89WhitehorseYukon
    3.2
  90. 90West VancouverBritish Columbia
    3.0
  91. 91North VancouverBritish Columbia
    2.9
  92. 92CranbrookBritish Columbia
    2.6
  93. 93North CowichanBritish Columbia
    2.5
  94. 94Yellowknifelow-cost sensorsNorthwest Territories
    2.2
  95. 95Campbell RiverBritish Columbia
    1.4
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, June 2026 · Canada now