Colwood Health Impact
Colwood averaged 5.4 ug/m3 PM2.5, equal to 1.1x the WHO annual PM2.5 guideline and about 0.2 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in British Columbia, Canada.
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Average EPA AQI
29
Rank 86 of 158 cities by average AQI
PM2.5
5.4
ug/m3 annualized city average
Seasonality
November
Cleanest: June
Health indicator
0.2
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Colwood
32
34
34
31
23
20
29
29
25
26
34
31
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Colwood, the current global analytics build covers 359 daily rows from 2024-01-01 to 2025-01-01. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.