Ponferrada Seasonal Pollution
Ponferrada usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in March. The page uses OpenAQ-derived daily history for 5 mapped monitoring locations in Castille-Leon, Spain.
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Average EPA AQI
19
Rank 187 of 253 cities by average AQI
PM2.5
16.6
ug/m3 annualized city average
Seasonality
January
Cleanest: March
Health indicator
0.8
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Ponferrada
45
21
11
18
15
21
20
21
18
18
18
23
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Ponferrada, the current global analytics build covers 305 daily rows from 2024-01-29 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.