SmogRank / World / Canada / British Columbia / March 2025
Most polluted cities in British Columbia, Canada, March 2025
37 cities in British Columbia, Canada ranked by their average PM2.5 over the 31 days. Worst: Smithers at 6.9 µg/m³, #2,085 of 2,809 cities in the world. Cleanest: West Vancouver at 2.1. 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.
- 1Smithers 0%
- 2Quesnel 0%
- 3Vernon 0%
- 4Castlegar 0%
- 5Kamloops 0%
- 6Port Alberni 0%
- 7Cranbrook 0%
- 8Terrace 0%
- 9Kelowna 0%
- 10Fort St. John 0%
- 10Victoria 0%
- 12Harewood 0%
- 13Langford 0%
- 14Kitimat 0%
- 15Mission 0%
- 15Vancouver 0%
- 17Whistler 0%
- 18Duncan 0%
- 18Gibsons 0%
- 20Abbotsford 0%
- 20Agassiz 0%
- 22Burnaby 0%
- 22Chilliwack 0%
- 22Langley 0%
- 22Richmond 0%
- 22Squamish 0%
- 22Strawberry Hill 0%
- 28Coquitlam 0%
- 28Hope 0%
- 30Delta 0%
- 30North Cowichan 0%
- 32Campbell River 0%
- 33Nanaimo 0%
- 33Williams Lake 0%
- 35North Vancouver 0%
- 35Port Coquitlam 0%
- 37West Vancouver 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, March 2025, smogrank.com/ca/region/british-columbia/history/2025-03 (accessed 7 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.