SmogRank / World / Canada / British Columbia / May 2025
Most polluted cities in British Columbia, Canada, May 2025
39 cities in British Columbia, Canada ranked by their average PM2.5 over the 31 days. Worst: Quesnel at 5.6 µg/m³, #2,044 of 2,771 cities in the world. Cleanest: Campbell River at 1.7. A city needs measurements on 70% of the days to be ranked.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
- 1Quesnel 0%
- 2Prince George 0%
- 3Abbotsford 0%
- 4Agassiz 0%
- 4Fort St. John 0%
- 6Chilliwack 0%
- 6Vernon 0%
- 8Kamloops 0%
- 8Victoria 0%
- 10Castlegar 0%
- 10Mission 0%
- 12Squamish 0%
- 13Cranbrook 0%
- 13Langley 0%
- 13Vancouver 0%
- 16Burnaby 0%
- 16Hope 0%
- 18Gibsons 0%
- 18Kelowna 0%
- 18Richmond 0%
- 18Strawberry Hill 0%
- 18Harewood 0%
- 23Langford 0%
- 23Port Alberni 0%
- 25Coquitlam 0%
- 26Port Coquitlam 0%
- 27Delta 0%
- 27Duncan 0%
- 29Terrace 0%
- 30Nanaimo 0%
- 30West Vancouver 0%
- 32North Vancouver 0%
- 32Smithers 0%
- 32Whistler 0%
- 35Kitimat 0%
- 35Williams Lake 0%
- 37Creston 0%
- 38North Cowichan 0%
- 39Campbell River 0%
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
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SmogRank, most polluted cities in British Columbia, Canada, PM2.5, May 2025, smogrank.com/ca/region/british-columbia/history/2025-05 (accessed 6 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.