Vieiro Seasonal Pollution
Vieiro usually records its highest OpenAQ-derived EPA AQI in February and its cleanest month in August. The page uses OpenAQ-derived daily history for 5 mapped monitoring locations in Galicia, Spain.
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Average EPA AQI
32
Rank 127 of 253 cities by average AQI
PM2.5
6.0
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
Vieiro
35
44
32
33
29
32
19
18
33
28
36
36
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Vieiro, the current global analytics build covers 333 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.