Grande-Synthe Health Impact
Grande-Synthe averaged n/a ug/m3 PM2.5, equal to n/ax the WHO annual PM2.5 guideline. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Hauts-de-France, France.
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Average EPA AQI
15
Rank 213 of 272 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
May
Cleanest: April
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Grande-Synthe
18
13
12
12
20
19
14
17
17
13
16
14
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Grande-Synthe, the current global analytics build covers 324 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.