Gaillard Seasonal Pollution
Gaillard usually records its highest OpenAQ-derived EPA AQI in December and its cleanest month in September. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Auvergne-Rhone-Alpes, France.
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Average EPA AQI
37
Rank 102 of 272 cities by average AQI
PM2.5
8.8
ug/m3 annualized city average
Seasonality
December
Cleanest: September
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Gaillard
48
46
47
28
23
27
30
38
21
34
51
53
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Gaillard, the current global analytics build covers 329 daily rows from 2024-01-01 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.