Piedras Blancas Seasonal Pollution
Piedras Blancas usually records its highest OpenAQ-derived EPA AQI in February and its cleanest month in August. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Asturias, Spain.
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Average EPA AQI
32
Rank 125 of 253 cities by average AQI
PM2.5
6.2
ug/m3 annualized city average
Seasonality
February
Cleanest: August
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Piedras Blancas
41
43
28
34
22
28
21
21
34
27
43
41
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Piedras Blancas, the current global analytics build covers 310 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.