SmogRank / Canada / British Columbia / West Vancouver

West Vancouver, month by month

West Vancouver has a measured daily mean on 1,234 days since 7 May 2023. Its worst month was September 2025, at 54 US AQI (10.6 µg/m³), 600th of 3,104 cities on that month's world ranking. Its cleanest was March 2025, at 12 US AQI (2.1 µg/m³). 2025 averaged 23 US AQI (4.1 µg/m³), against 21 US AQI (3.8 µg/m³) in 2024.

Every month since 2023

Each square is a month's mean PM2.5 in US AQI from West Vancouver's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with West Vancouver marked; each year, the year's. A dashed square is the running month, so far.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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

West Vancouver's worst months

MonthUS AQIDays measuredWorld rankEpisode
September 2025 5410.6 µg/m³30 of 30600thof 3,104North-western Canada and United States, September 2025
North-western United States and Canada, August and September 2025
August 2023 5310.4 µg/m³31 of 31552ndof 1,980North-western United States and Canada, August 2023
August 2026 468.3 µg/m³31 of 311,481stof 2,896North-western United States and Canada, 4 to 22 August 2026
August 2025 366.4 µg/m³31 of 312,395thof 2,901North-western United States and Canada, August and September 2025
May 2023 346.1 µg/m³25 of 311,279thof 1,600–
August 2024 335.9 µg/m³31 of 311,769thof 2,010–

Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.

West Vancouver's worst days

DayUS AQIEpisode
3 Sept 2025 17387.2 µg/m³North-western United States and Canada, August and September 2025
20 Aug 2023 12445.0 µg/m³North-western United States and Canada, August 2023
26 Aug 2023 9633.5 µg/m³North-western United States and Canada, August 2023
5 Aug 2026 9432.3 µg/m³North-western United States and Canada, 4 to 22 August 2026
5 Sept 2025 9331.4 µg/m³North-western United States and Canada, August and September 2025
6 Aug 2026 8829.2 µg/m³North-western United States and Canada, 4 to 22 August 2026
25 Aug 2023 8728.4 µg/m³North-western United States and Canada, August 2023
6 Sept 2025 8628.1 µg/m³North-western Canada and United States, September 2025
North-western United States and Canada, August and September 2025
27 Aug 2023 7823.8 µg/m³North-western United States and Canada, August 2023
4 Sept 2025 7521.8 µg/m³North-western United States and Canada, August and September 2025

Daily means, the highest since 7 May 2023; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.

Use this history

SmogRank, PM2.5 monthly and daily means, West Vancouver, Canada, 7 May 2023 – 10 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/ca/west-vancouver/history (accessed 13 Oct 2026).

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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.

West Vancouver now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-13 02:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).