previous 14 days
O3 concentrations per day (µg/m3), 15/03/2026 - 28/03/2026
next 14 days


- Click on the figures in the table cells to get an evolution graph of daily concentrations
- Click on the date to get an interpolation map
- "NA" means no or not enough data were available

Codecity15/0316/0317/0318/0319/0320/0321/0322/0323/0324/0325/0326/0327/0328/03
41B011 Sint-Agatha-Berchem 82.5 77.5 82 89.5 110.5 91.5 76 90.5 85.5 97 82 79.5 78.5 83.5
41MEU1 Neder-Over-Heembeek 78 64 NA 85 108.5 42.5 74 88 82 89.5 80 79.5 73 84.5
41N043 Voorhaven (Haren) 73.5 64 66.5 78.5 100 13 NA NA 76 83 75 76.5 62.5 80
41R001 Sint-Jans-Molenbeek 71 60 71 80.5 91 78.5 67 80 66.5 86 75.5 69.5 62 71
41R012 Ukkel 78.5 80 80.5 87.5 107.5 92.5 75.5 92 85 96.5 82.5 79 78.5 84.5
42N016 Dessel 80.5 82 79.5 90 107 96 81.5 92 95.5 99 82.5 84 80 87.5
42N027 Bree 82.5 80 79 86 109 95 81 86 100.5 62.5 81.5 73 84.5 86.5
42N035 Aarschot 81 67.5 NA NA NA 101 83.5 95 92.5 104.5 85.5 85.5 85 87.5
42N040 Sint-Pieters-Leeuw 77 66 NA NA NA 91 75.5 89 83 91 79.5 78 78 82
42N046 Gellik NA NA NA NA 92.5 46 NA NA NA 90.5 88 81.5 85 89.5
42N047 Hasselt 78.5 78 78.5 86 106 95 76 93 99 93.5 84.5 80 84 88.5
42R801 Borgerhout 78.5 79.5 78.5 83 104 94 79.5 90.5 73.5 92 83.5 80.5 77 85
42R811 Schoten 78.5 66.5 NA NA NA NA NA NA 74.5 95.5 88 82 77.5 89.5
42R842 Mechelen (Hendrik Speecqvest) 79.5 68.5 NA NA NA 79 70.5 84 72.5 93.5 79.5 74.5 73.5 82.5
44M705 Roeselare (Haven) 87 80 86 86.5 94.5 89 67 NA 82 99 86.5 82.5 79 88.5
44N012 Moerkerke 88 83 89.5 88.5 97 85.5 61.5 79.5 82 93.5 86.5 83 81 86
44N029 Houtem (Veurne) 85 80 85 88 81 70.5 71 46 80 88.5 83 83 80.5 86
44R701 Gent (Baudelopark) 84 77 89.5 89 105 96 69 94 85.5 107 85 77.5 76 85
44R710 Destelbergen 85.5 80 87 91 107.5 90 79.5 95.5 88.5 105 87.5 81 79 86.5
43N060 Havinnes 74.5 69 74 75.5 96.5 91 68.5 76 78 81.5 71 72.5 68.5 73
43N064 Rixensart 85 84.5 83 92 118.5 100.5 86.5 100 93.5 100 86 84 83 89.5
43N066 Eupen 73 70 69 82 100 84.5 83.5 93 95 94.5 86 69.5 80 78.5
43N070 Mons 73.5 75 73.5 87.5 115.5 105.5 80 89 82 83 77 78 65.5 85
43N073 Vezin 78 80 79 87.5 101 105 78.5 86 95 95.5 82.5 77.5 83 84
43N085 Vielsalm 62.5 68 71.5 82.5 100 104.5 88 93 95 93.5 79 75 75.5 74
43N093 Sinsin 76 78.5 79 85.5 98 93.5 90 92 99 100 85.5 80 82.5 88
43N100 Dourbes 85 87.5 86 95.5 109.5 108.5 100 95.5 107.5 106 90 86 89.5 94.5
43N113 Saint-Ode 78 80 78 88.5 102.5 108 92 93 98 100 90 86 86.5 85.5
43N121 Offagne 61.5 62 68.5 78.5 84.5 82 76.5 79 80 91.5 76 57 70 77
43N132 Habay-La-Neuve 72.5 70.5 75 79.5 100.5 103 89 91 93.5 96.5 82.5 77 80 82
43R221 Herstal 78 72.5 71 84.5 92 88 81 90 94.5 93.5 87 76 77.5 84.5
43R222 Liège (ISSeP) 80.5 73 77 87 101 93 86 93.5 95.5 97.5 89.5 78.5 82.5 87.5
43R240 Engis 74 75 76 86.5 100 90 81 91 94.5 95 85 71 82 84
43R401 Namur 78 78.5 78.5 79 95 89.5 79.5 84.5 93 96.5 86 79.5 83 85
45R502 Lodelinsart 70 67.5 73.5 80 100.5 98.5 74.5 87 82 91.5 79 74 73 81.5
 
Interpolated spatial average in :
Brussels76777686107897287809281787483
Flanders84838592107937485909887818186
Wallonia75757987103988388939683777982
Belgium79798289105967986919785798084
 
% of the population exposed to O3 concentrations > 180 μg/m³ in:
Brussels0%0%0%0%0%0%0%0%0%0%0%0%0%0%
Flanders0%0%0%0%0%0%0%0%0%0%0%0%0%0%
Wallonia0%0%0%0%0%0%0%0%0%0%0%0%0%0%
Belgium0%0%0%0%0%0%0%0%0%0%0%0%0%0%
 
% of the population exposed to O3 concentrations > 240 μg/m³ in:
Brussels0%0%0%0%0%0%0%0%0%0%0%0%0%0%
Flanders0%0%0%0%0%0%0%0%0%0%0%0%0%0%
Wallonia0%0%0%0%0%0%0%0%0%0%0%0%0%0%
Belgium0%0%0%0%0%0%0%0%0%0%0%0%0%0%

Color legend:Kleurlegende

These data are not validated : they should not be used for any study whatsoever
The use or publication of the data is allowed only when the source (www.irceline.be) is acknowledged

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