SmogRank / World / Canada / British Columbia / August 2025
Most polluted cities in British Columbia, Canada, August 2025
38 cities in British Columbia, Canada ranked by their average PM2.5 over the 31 days. Worst: Port Alberni at 12.6 µg/m³, #624 of 2,841 cities in the world. Cleanest: Kitimat at 3.9. 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.
- 1Port Alberni 4%
- 2Fort St. John 3%
- 3Hope 3%
- 4Prince George 0%
- 5Quesnel 0%
- 5Squamish 0%
- 7Agassiz 0%
- 7Chilliwack 0%
- 9Gibsons 0%
- 10Kamloops 0%
- 11Nanaimo 0%
- 12Abbotsford 0%
- 12Castlegar 0%
- 14Mission 0%
- 14Whistler 0%
- 16Burnaby 0%
- 16Cranbrook 0%
- 16Port Coquitlam 0%
- 19Coquitlam 0%
- 19Vancouver 0%
- 21Vernon 0%
- 21West Vancouver 0%
- 23Langley 0%
- 23Victoria 0%
- 25Kelowna 0%
- 26Strawberry Hill 0%
- 27Duncan 0%
- 27Richmond 0%
- 27Williams Lake 0%
- 30Creston 0%
- 31Delta 0%
- 31North Vancouver 0%
- 33North Cowichan 0%
- 34Langford 0%
- 34Terrace 0%
- 36Harewood 0%
- 37Smithers 0%
- 38Kitimat 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
All cities in the world, August 2025 · All cities in Canada, August 2025 · British Columbia now
Use this board
SmogRank, most polluted cities in British Columbia, Canada, PM2.5, August 2025, smogrank.com/ca/region/british-columbia/history/2025-08 (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.