Mission Seasonal Pollution
Mission usually records its highest OpenAQ-derived EPA AQI in July and its cleanest month in December. 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 88 of 158 cities by average AQI
PM2.5
5.6
ug/m3 annualized city average
Seasonality
July
Cleanest: December
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Mission
-
-
-
-
22
28
35
33
30
30
30
22
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Mission, the current global analytics build covers 233 daily rows from 2024-05-13 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.