Besançon Seasonal Pollution
Besançon usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in May. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Bourgogne-Franche-Comté, France.
Search city analytics
Average EPA AQI
35
Rank 138 of 272 cities by average AQI
PM2.5
7.6
ug/m3 annualized city average
Seasonality
January
Cleanest: May
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Besançon
55
40
38
25
16
29
20
25
28
30
42
51
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Besançon, the current global analytics build covers 275 daily rows from 2024-01-02 to 2024-12-30. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.