Billère Seasonal Pollution
Billère usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in March. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Nouvelle-Aquitaine, France.
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Average EPA AQI
36
Rank 122 of 272 cities by average AQI
PM2.5
7.6
ug/m3 annualized city average
Seasonality
January
Cleanest: March
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Billère
57
43
21
24
22
27
39
36
28
26
47
47
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Billère, the current global analytics build covers 304 daily rows from 2024-01-02 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.