Châteauneuf-les-Martigues Seasonal Pollution
Châteauneuf-les-Martigues usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in October. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Provence-Alpes-Cote d'Azur, France.
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Average EPA AQI
20
Rank 201 of 272 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
January
Cleanest: October
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Châteauneuf-les-Martigues
24
20
15
-
-
22
21
22
17
14
15
19
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Châteauneuf-les-Martigues, the current global analytics build covers 170 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.