Saint-Martin-d’Hères Seasonal Pollution
Saint-Martin-d’Hères usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in May. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Auvergne-Rhone-Alpes, France.
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Average EPA AQI
45
Rank 25 of 272 cities by average AQI
PM2.5
10.3
ug/m3 annualized city average
Seasonality
January
Cleanest: May
Health indicator
0.5
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Saint-Martin-d’Hères
67
53
40
29
25
34
38
44
33
38
58
63
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Saint-Martin-d’Hères, the current global analytics build covers 304 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.