Amurrio Seasonal Pollution
Amurrio usually records its highest OpenAQ-derived EPA AQI in August and its cleanest month in May. The page uses OpenAQ-derived daily history for 3 mapped monitoring locations in Basque Country, Spain.
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Average EPA AQI
18
Rank 194 of 253 cities by average AQI
PM2.5
4.0
ug/m3 annualized city average
Seasonality
August
Cleanest: May
Health indicator
0.2
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Amurrio
20
18
11
13
11
17
23
25
19
19
22
20
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Amurrio, the current global analytics build covers 332 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.