Nancy Seasonal Pollution
Nancy usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in May. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Grand Est, France.
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Average EPA AQI
39
Rank 78 of 272 cities by average AQI
PM2.5
8.3
ug/m3 annualized city average
Seasonality
November
Cleanest: May
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Nancy
53
40
46
33
29
32
29
30
37
35
53
47
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Nancy, the current global analytics build covers 302 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.