Tocopilla Seasonal Pollution
Tocopilla usually records its highest OpenAQ-derived EPA AQI in December and its cleanest month in August. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Antofagasta, Chile.
Search city analytics
Average EPA AQI
79
Rank 42 of 60 cities by average AQI
PM2.5
24.7
ug/m3 annualized city average
Seasonality
December
Cleanest: August
Health indicator
1.1
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Tocopilla
74
72
80
75
74
81
73
71
73
77
84
114
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Tocopilla, 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.