SmogRank / World / Canada / British Columbia / May 2023
Most polluted cities in British Columbia, Canada, May 2023
39 cities in British Columbia, Canada ranked by their average PM2.5 over the 31 days. Worst: Fort St. John at 49.5 µg/m³, #14 of 1,543 cities in the world. Cleanest: Campbell River at 3.5. 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.
- 1Fort St. John 42%
- 2Quesnel 12%
- 3Prince George 10%
- 4Cranbrook 10%
- 5Kamloops 6%
- 6Vernon 6%
- 7Kelowna 6%
- 8Smithers 4%
- 9Harewood 0%
- 10Squamish 0%
- 11Agassiz 0%
- 11Castlegar 0%
- 11Victoria 0%
- 14Gibsons 0%
- 15Strawberry Hill 0%
- 16Hope 0%
- 17North Vancouver 0%
- 18Abbotsford 0%
- 18Burnaby 0%
- 18Chilliwack 0%
- 18West Vancouver 0%
- 22Courtenay 0%
- 23Langley 0%
- 23Whistler 0%
- 25Nanaimo 0%
- 25Powell River 0%
- 27Coquitlam 0%
- 27Penticton 0%
- 27Port Coquitlam 0%
- 27Richmond 0%
- 27Vancouver 0%
- 32Kitimat 0%
- 33Terrace 0%
- 34Delta 0%
- 35North Cowichan 0%
- 35Port Alberni 0%
- 37Langford 0%
- 38Duncan 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 2023, smogrank.com/ca/region/british-columbia/history/2023-05 (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.