Leganés Seasonal Pollution
Leganés usually records its highest OpenAQ-derived EPA AQI in August and its cleanest month in March. The page uses OpenAQ-derived daily history for 3 mapped monitoring locations in Madrid, Spain.
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Average EPA AQI
44
Rank 52 of 253 cities by average AQI
PM2.5
10.1
ug/m3 annualized city average
Seasonality
August
Cleanest: March
Health indicator
0.5
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Leganés
50
41
20
41
30
37
38
60
40
42
52
58
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Leganés, the current global analytics build covers 285 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.