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O3 concentrations per day (µg/m3), 10/05/2026 - 23/05/2026
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- 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

Codecity10/0511/0512/0513/0514/0515/0516/0517/0518/0519/0520/0521/0522/0523/05
41B011 Sint-Agatha-Berchem 101.5 90.5 85.5 80 71 85.5 92 67.5 77.5 69.5 83.5 88 119 116.5
41MEU1 Neder-Over-Heembeek 104 89.5 84.5 73.5 79.5 84.5 88 63.5 71.5 65 74.5 88 129.5 119
41N043 Voorhaven (Haren) 100.5 84.5 81 72.5 75 79 84.5 59.5 69 59 74.5 80 120 112
41R001 Sint-Jans-Molenbeek 96 78 76 71.5 67.5 75.5 84.5 64.5 59.5 NA 77.5 84 113 125.5
41R012 Ukkel 105.5 91.5 87 78 78.5 87 89 67 75.5 69 80 86 116 118
42N016 Dessel 66 NA 68 74 84 90 93 73.5 78.5 71 84 98 126.5 129
42N027 Bree 107 94.5 96.5 84.5 83.5 90.5 98.5 77 93 77 89.5 106 135.5 125.5
42N035 Aarschot 108 97 96 78.5 83.5 90.5 97.5 76.5 86.5 70 88 103.5 123 147
42N040 Sint-Pieters-Leeuw 99.5 87 86 78.5 74.5 84 90 69.5 77.5 68.5 79.5 92 115 117.5
42N046 Gellik 109 91.5 97.5 82 88 94 99.5 73.5 89.5 68.5 87.5 92.5 127.5 120.5
42N047 Hasselt 109.5 90 97 80 82 86.5 97.5 72 84.5 72 84.5 95 119 122.5
42R801 Borgerhout 110 91.5 91.5 79.5 75 86.5 89 68 77 67 81 87 126.5 132
42R811 Schoten 108.5 97 92 75.5 76 91 95 73 82.5 71.5 86.5 93.5 135.5 138
42R842 Mechelen (Hendrik Speecqvest) 101.5 90 87.5 71.5 78.5 83.5 90 68 70 66.5 74.5 82.5 119.5 117.5
44M705 Roeselare (Haven) 114.5 96.5 85.5 82.5 84.5 90.5 93.5 87.5 86.5 69 89 91 128.5 130
44N012 Moerkerke 108 94 97 78.5 83 89.5 94 77.5 86.5 73 90 92 136.5 131
44N029 Houtem (Veurne) 111.5 93.5 96 77.5 84 92 92 80.5 87 76.5 83 93.5 128.5 124
44R701 Gent (Baudelopark) 114.5 92.5 91 76 78.5 90.5 90.5 73 81.5 71.5 85.5 99 126.5 141
44R710 Destelbergen 116.5 93 94 78 72.5 85 90.5 72 78.5 72 86.5 98 123.5 142
43N060 Havinnes 101 84 83.5 68 77 80.5 85 60 72 60.5 69.5 85 103 117.5
43N064 Rixensart 110.5 92 94.5 85 90 91 93 78.5 82 73.5 89.5 100.5 118 125.5
43N066 Eupen 107 81.5 89 78 72.5 80 87 71 75.5 67 79.5 93.5 115.5 122
43N070 Mons 93 85 76 61.5 80 77.5 76.5 59.5 59.5 57.5 57.5 85 93.5 97
43N073 Vezin 104 85 88.5 76.5 70.5 84 87.5 64 73 65.5 81 94 113 116.5
43N085 Vielsalm 103.5 70.5 77.5 71 72.5 77.5 84.5 68.5 66.5 63.5 64.5 81.5 109 114.5
43N093 Sinsin 103.5 85.5 87.5 79.5 81.5 88.5 91 67.5 77.5 66 79 87.5 111.5 106.5
43N100 Dourbes 109.5 92.5 95.5 80.5 79 91.5 90.5 67.5 83 77 84 91.5 110.5 108.5
43N113 Saint-Ode 98 82 84.5 84 78.5 85 87.5 75 84 72 75 84 112 119.5
43N121 Offagne 84.5 69 79.5 71.5 58 63.5 76.5 58 60 59.5 65.5 42.5 70 68.5
43N132 Habay-La-Neuve 102 79.5 84 81 74 80.5 82 69.5 76 71.5 75.5 87 115.5 121
43R221 Herstal 109 90.5 93.5 79.5 79 81 93.5 74.5 84.5 69 85 93 122 123.5
43R222 Liège (ISSeP) 110 85 90 79 77.5 84 92 74 77 67 82.5 98 118 121
43R240 Engis 105 84.5 88 71.5 69 74 79 62 67 62.5 80.5 88 107.5 106.5
43R401 Namur 107 87 91 81.5 73.5 86.5 89.5 68.5 78 66.5 82.5 93.5 108 119
45R502 Lodelinsart 98 83.5 78.5 69 73.5 79.5 81.5 62 65.5 64.5 67 89.5 96 96
 
Interpolated spatial average in :
Brussels1028785767783886676698187116116
Flanders1089393788088917381708594124125
Wallonia998283747382846572667686102107
Belgium1038788767685876976688089112115
 
% 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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