Arequipa Seasonal Pollution
Arequipa usually records its highest OpenAQ-derived EPA AQI in March and its cleanest month in May. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Arequipa, Peru.
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Average EPA AQI
57
Rank 5 of 14 cities by average AQI
PM2.5
12.8
ug/m3 annualized city average
Seasonality
March
Cleanest: May
Health indicator
0.6
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Arequipa
-
-
64
60
54
56
56
55
60
56
57
61
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Arequipa, the current global analytics build covers 280 daily rows from 2024-03-28 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.