Niel Health Impact
Niel averaged 16.4 ug/m3 PM2.5, equal to 3.3x the WHO annual PM2.5 guideline and about 0.7 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Flanders, Belgium.
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Average EPA AQI
61
Rank 3 of 67 cities by average AQI
PM2.5
16.4
ug/m3 annualized city average
Seasonality
December
Cleanest: July
Health indicator
0.7
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Niel
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61
49
56
58
56
74
74
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Niel, the current global analytics build covers 185 daily rows from 2024-06-01 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.