Olds Seasonal Pollution
Olds usually records its highest OpenAQ-derived EPA AQI in July and its cleanest month in April. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Alberta, Canada.
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Average EPA AQI
26
Rank 109 of 158 cities by average AQI
PM2.5
5.7
ug/m3 annualized city average
Seasonality
July
Cleanest: April
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Olds
29
20
23
11
19
15
51
49
24
13
27
25
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Olds, the current global analytics build covers 365 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.