Niort Seasonal Pollution
Niort usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in March. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Nouvelle-Aquitaine, France.
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Average EPA AQI
34
Rank 147 of 272 cities by average AQI
PM2.5
6.9
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
Niort
53
38
23
29
24
30
30
31
31
32
44
46
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Niort, the current global analytics build covers 341 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.