SmogRank / World / Canada / British Columbia / July 2025
Most polluted cities in British Columbia, Canada, July 2025
37 cities in British Columbia, Canada ranked by their average PM2.5 over the 31 days. Worst: Williams Lake at 8.3 µg/m³, #1,654 of 2,832 cities in the world. Cleanest: Campbell River at 1.9. 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.
- 1Williams Lake 0%
- 2Quesnel 0%
- 3Prince George 0%
- 4Castlegar 0%
- 5Fort St. John 0%
- 5Squamish 0%
- 7Hope 0%
- 8Agassiz 0%
- 9Chilliwack 0%
- 9Coquitlam 0%
- 11Gibsons 0%
- 12Nanaimo 0%
- 12Vernon 0%
- 14Abbotsford 0%
- 14Port Coquitlam 0%
- 16Burnaby 0%
- 16Mission 0%
- 16Vancouver 0%
- 16Whistler 0%
- 20Victoria 0%
- 21Cranbrook 0%
- 21Smithers 0%
- 23Duncan 0%
- 24Langley 0%
- 24Richmond 0%
- 24Terrace 0%
- 24West Vancouver 0%
- 28Strawberry Hill 0%
- 29Creston 0%
- 30Kelowna 0%
- 31North Cowichan 0%
- 32Delta 0%
- 32Harewood 0%
- 34North Vancouver 0%
- 35Langford 0%
- 36Kitimat 0%
- 37Campbell 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, July 2025, smogrank.com/ca/region/british-columbia/history/2025-07 (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.