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O3 concentrations per day (µg/m3), 11/05/2026 - 24/05/2026
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

Codecity11/0512/0513/0514/0515/0516/0517/0518/0519/0520/0521/0522/0523/0524/05
41B011 Sint-Agatha-Berchem 90.5 85.5 80 71 85.5 92 67.5 77.5 69.5 83.5 88 119 116.5 126
41MEU1 Neder-Over-Heembeek 89.5 84.5 73.5 79.5 84.5 88 63.5 71.5 65 74.5 88 129.5 119 123.5
41N043 Voorhaven (Haren) 84.5 81 72.5 75 79 84.5 59.5 69 59 74.5 80 120 112 119
41R001 Sint-Jans-Molenbeek 78 76 71.5 67.5 75.5 84.5 64.5 59.5 NA 77.5 84 113 125.5 124
41R012 Ukkel 91.5 87 78 78.5 87 89 67 75.5 69 80 86 116 118 123
42N016 Dessel NA 68 74 84 90 93 73.5 78.5 71 84 98 126.5 129 121
42N027 Bree 94.5 96.5 84.5 83.5 90.5 98.5 77 93 77 89.5 106 135.5 125.5 124.5
42N035 Aarschot 97 96 78.5 83.5 90.5 97.5 76.5 86.5 70 88 103.5 123 147 132.5
42N040 Sint-Pieters-Leeuw 87 86 78.5 74.5 84 90 69.5 77.5 68.5 79.5 92 115 117.5 121.5
42N046 Gellik 91.5 97.5 82 88 94 99.5 73.5 89.5 68.5 87.5 92.5 127.5 120.5 129
42N047 Hasselt 90 97 80 82 86.5 97.5 72 84.5 72 84.5 95 119 122.5 128
42R801 Borgerhout 91.5 91.5 79.5 75 86.5 89 68 77 67 81 87 126.5 132 124
42R811 Schoten 97 92 75.5 76 91 95 73 82.5 71.5 86.5 93.5 135.5 138 123.5
42R842 Mechelen (Hendrik Speecqvest) 90 87.5 71.5 78.5 83.5 90 68 70 66.5 74.5 82.5 119.5 117.5 116
44M705 Roeselare (Haven) 96.5 85.5 82.5 84.5 90.5 93.5 87.5 86.5 69 89 91 128.5 130 148
44N012 Moerkerke 94 97 78.5 83 89.5 94 77.5 86.5 73 90 92 136.5 131 146
44N029 Houtem (Veurne) 93.5 96 77.5 84 92 92 80.5 87 76.5 83 93.5 128.5 124 140.5
44R701 Gent (Baudelopark) 92.5 91 76 78.5 90.5 90.5 73 81.5 71.5 85.5 99 126.5 141 148.5
44R710 Destelbergen 93 94 78 72.5 85 90.5 72 78.5 72 86.5 98 123.5 142 143
43N060 Havinnes 84 83.5 68 77 80.5 85 60 72 60.5 69.5 85 103 117.5 117
43N064 Rixensart 92 94.5 85 90 91 93 78.5 82 73.5 89.5 100.5 118 125.5 114.5
43N066 Eupen 81.5 89 78 72.5 80 87 71 75.5 67 79.5 93.5 115.5 122 117.5
43N070 Mons 85 76 61.5 80 77.5 76.5 59.5 59.5 57.5 57.5 85 93.5 97 34.5
43N073 Vezin 85 88.5 76.5 70.5 84 87.5 64 73 65.5 81 94 113 116.5 124
43N085 Vielsalm 70.5 77.5 71 72.5 77.5 84.5 68.5 66.5 63.5 64.5 81.5 109 114.5 109
43N093 Sinsin 85.5 87.5 79.5 81.5 88.5 91 67.5 77.5 66 79 87.5 111.5 106.5 126
43N100 Dourbes 92.5 95.5 80.5 79 91.5 90.5 67.5 83 77 84 91.5 110.5 108.5 127
43N113 Saint-Ode 82 84.5 84 78.5 85 87.5 75 84 72 75 84 112 119.5 109
43N121 Offagne 69 79.5 71.5 58 63.5 76.5 58 60 59.5 65.5 42.5 70 68.5 74.5
43N132 Habay-La-Neuve 79.5 84 81 74 80.5 82 69.5 76 71.5 75.5 87 115.5 121 110.5
43R221 Herstal 90.5 93.5 79.5 79 81 93.5 74.5 84.5 69 85 93 122 123.5 134.5
43R222 Liège (ISSeP) 85 90 79 77.5 84 92 74 77 67 82.5 98 118 121 136.5
43R240 Engis 84.5 88 71.5 69 74 79 62 67 62.5 80.5 88 107.5 106.5 130.5
43R401 Namur 87 91 81.5 73.5 86.5 89.5 68.5 78 66.5 82.5 93.5 108 119 118.5
45R502 Lodelinsart 83.5 78.5 69 73.5 79.5 81.5 62 65.5 64.5 67 89.5 96 96 123
 
Interpolated spatial average in :
Brussels8785767783886676698187116116119
Flanders9393788088917381708594124125128
Wallonia8283747382846572667686102107110
Belgium8788767685876976688089112115118
 
% 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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