La Rochelle Seasonal Pollution
La Rochelle usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in June. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Nouvelle-Aquitaine, France.
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Average EPA AQI
33
Rank 167 of 272 cities by average AQI
PM2.5
6.6
ug/m3 annualized city average
Seasonality
January
Cleanest: June
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
La Rochelle
51
37
26
-
-
19
21
21
29
30
39
40
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For La Rochelle, the current global analytics build covers 198 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.