Tournai Seasonal Pollution
Tournai usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in April. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Wallonia, Belgium.
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Average EPA AQI
36
Rank 50 of 67 cities by average AQI
PM2.5
8.1
ug/m3 annualized city average
Seasonality
January
Cleanest: April
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Tournai
51
30
33
14
43
37
23
31
42
42
46
41
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Tournai, the current global analytics build covers 322 daily rows from 2024-01-01 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.