Copiapó Seasonal Pollution
Copiapó usually records its highest OpenAQ-derived EPA AQI in July and its cleanest month in February. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Atacama, Chile.
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Average EPA AQI
69
Rank 52 of 60 cities by average AQI
PM2.5
19.2
ug/m3 annualized city average
Seasonality
July
Cleanest: February
Health indicator
0.9
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Copiapó
67
64
66
69
74
75
78
69
71
65
67
67
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Copiapó, the current global analytics build covers 362 daily rows from 2024-01-01 to 2024-12-31. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.