Longuenesse Seasonal Pollution
Longuenesse usually records its highest OpenAQ-derived EPA AQI in May and its cleanest month in June. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Hauts-de-France, France.
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Average EPA AQI
39
Rank 76 of 272 cities by average AQI
PM2.5
8.3
ug/m3 annualized city average
Seasonality
May
Cleanest: June
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Longuenesse
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-
-
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46
32
33
34
40
39
45
43
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Longuenesse, the current global analytics build covers 201 daily rows from 2024-04-29 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.