Lleida Seasonal Pollution
Lleida usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in March. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Catalonia, Spain.
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Average EPA AQI
50
Rank 16 of 253 cities by average AQI
PM2.5
12.1
ug/m3 annualized city average
Seasonality
January
Cleanest: March
Health indicator
0.6
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Lleida
77
56
28
40
32
41
45
57
43
48
62
65
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Lleida, the current global analytics build covers 329 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.