Valenciennes Seasonal Pollution
Valenciennes usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in June. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Hauts-de-France, France.
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Average EPA AQI
39
Rank 82 of 272 cities by average AQI
PM2.5
9.8
ug/m3 annualized city average
Seasonality
January
Cleanest: June
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Valenciennes
53
45
48
26
31
19
35
29
30
39
52
48
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Valenciennes, the current global analytics build covers 309 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.