Huasco Seasonal Pollution
Huasco usually records its highest OpenAQ-derived EPA AQI in May and its cleanest month in October. The page uses OpenAQ-derived daily history for 12 mapped monitoring locations in Atacama, Chile.
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Average EPA AQI
68
Rank 53 of 60 cities by average AQI
PM2.5
18.4
ug/m3 annualized city average
Seasonality
May
Cleanest: October
Health indicator
0.8
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Huasco
70
68
68
68
72
67
71
66
71
64
67
66
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Huasco, the current global analytics build covers 367 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.