Nelson Seasonal Pollution
Nelson 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 British Columbia, Canada.
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Average EPA AQI
30
Rank 82 of 158 cities by average AQI
PM2.5
12.8
ug/m3 annualized city average
Seasonality
July
Cleanest: April
Health indicator
0.6
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Nelson
7
6
5
5
6
8
126
115
39
24
23
13
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Nelson, 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.