SmogRank / Countries / Canada / 2026
Most polluted cities in Canada, 2026
96 cities in Canada ranked by their average PM2.5 so far (273 of 365 days); 77 above the WHO annual guideline (5.0 µg/m³). Worst: Kamloops at 13.8 µg/m³, #363 of 2,181 cities in the world. Cleanest: North Cowichan at 3.3. A city needs measurements on 70% of the days to be ranked.
- 1KamloopsBritish Columbia 13.82.8×
- 2VernonBritish Columbia 11.32.3×
- 3WindsorOntario 10.92.2×
- 4CalgaryAlberta 10.02.0×
- 5SarniaOntario 9.82.0×
- 6EdmontonAlberta 9.51.9×
- 6LondonOntario 9.51.9×
- 8BrantfordOntario 9.41.9×
- 9Nepeanlow-cost sensorsOntario 9.31.9×
- 10Red DeerAlberta 9.21.8×
- 11CranbrookBritish Columbia 9.01.8×
- 11St. ThomasOntario 9.01.8×
- 13HamiltonOntario 8.91.8×
- 13MiltonOntario 8.91.8×
- 15KitchenerOntario 8.71.7×
- 16TorontoOntario 8.61.7×
- 17GuelphOntario 8.51.7×
- 18ChathamOntario 8.41.7×
- 18NewmarketOntario 8.41.7×
- 20L'Ancienne-LoretteQuebec 8.31.7×
- 21KelownaBritish Columbia 8.21.6×
- 21OakvilleOntario 8.21.6×
- 21WaterdownOntario 8.21.6×
- 24Sorel-TracyQuebec 7.81.6×
- 25BarrieOntario 7.71.5×
- 26BramptonOntario 7.61.5×
- 27AirdrieAlberta 7.51.5×
- 27MississaugaOntario 7.51.5×
- 29St. CatharinesOntario 7.31.5×
- 30Prince AlbertSaskatchewan 7.21.4×
- 30Sault Ste. MarieOntario 7.21.4×
- 30ShawiniganQuebec 7.21.4×
- 33AllistonOntario 7.11.4×
- 33LethbridgeAlberta 7.11.4×
- 33Yellowknifelow-cost sensorsNorthwest Territories 7.11.4×
- 36Fort McMurrayAlberta 7.01.4×
- 36Sherwood ParkAlberta 7.01.4×
- 38BrossardQuebec 6.91.4×
- 38Medicine HatAlberta 6.91.4×
- 40MontréalQuebec 6.81.4×
- 40Port AlberniBritish Columbia 6.81.4×
- 40St. AlbertAlberta 6.81.4×
- 40QuébecQuebec 6.81.4×
- 44ChilliwackBritish Columbia 6.71.3×
- 44ReginaSaskatchewan 6.71.3×
- 44SaskatoonSaskatchewan 6.71.3×
- 47Swift CurrentSaskatchewan 6.61.3×
- 48BellevilleOntario 6.51.3×
- 48CornwallOntario 6.51.3×
- 48DrummondvilleQuebec 6.51.3×
- 48GranbyQuebec 6.51.3×
- 48Grande PrairieAlberta 6.51.3×
- 48Trois-RivièresQuebec 6.51.3×
- 54KingstonOntario 6.41.3×
- 54Prince GeorgeBritish Columbia 6.41.3×
- 54Rivière-des-Prairies–Pointe-aux-TremblesQuebec 6.41.3×
- 57Winnipeglow-cost sensorsManitoba 6.21.2×
- 57EdmundstonNew Brunswick 6.21.2×
- 59OttawaOntario 6.11.2×
- 60Gatineaulow-cost sensorsQuebec 6.01.2×
- 61PeterboroughOntario 5.91.2×
- 62AbbotsfordBritish Columbia 5.81.2×
- 62Greater SudburyOntario 5.81.2×
- 62SquamishBritish Columbia 5.81.2×
- 65Fort St. JohnBritish Columbia 5.71.1×
- 65SherbrookeQuebec 5.71.1×
- 67North BayOntario 5.61.1×
- 67SaguenayQuebec 5.61.1×
- 67HarewoodBritish Columbia 5.61.1×
- 70Saint-Jean-sur-RichelieuQuebec 5.41.1×
- 70VictoriaBritish Columbia 5.41.1×
- 72Sept-ÎlesQuebec 5.21.0×
- 72VancouverBritish Columbia 5.21.0×
- 74BurnabyBritish Columbia 5.11.0×
- 74CoquitlamBritish Columbia 5.11.0×
- 74DuncanBritish Columbia 5.11.0×
- 74LangleyBritish Columbia 5.11.0×
- 78Strawberry HillBritish Columbia 5.01.0×
- 79Port CoquitlamBritish Columbia 4.91.0×
- 80RichmondBritish Columbia 4.81.0×
- 80Rouyn-NorandaQuebec 4.81.0×
- 80Saint JohnNew Brunswick 4.81.0×
- 83NanaimoBritish Columbia 4.70.9×
- 84TerraceBritish Columbia 4.50.9×
- 85FrederictonNew Brunswick 4.40.9×
- 86MonctonNew Brunswick 4.30.9×
- 86North VancouverBritish Columbia 4.30.9×
- 88DeltaBritish Columbia 4.20.8×
- 88MiramichiNew Brunswick 4.20.8×
- 88WhitehorseYukon 4.20.8×
- 88West VancouverBritish Columbia 4.20.8×
- 92SydneyNova Scotia 4.00.8×
- 93CharlottetownPrince Edward Island 3.60.7×
- 94Campbell RiverBritish Columbia 3.40.7×
- 94DartmouthNova Scotia 3.40.7×
- 96North CowichanBritish Columbia 3.30.7×
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, 2026 · Canada now
Use this board
SmogRank, most polluted cities in Canada, PM2.5, 2026 (so far), smogrank.com/ca/history/2026 (accessed 2 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.