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O3 concentrations per day (µg/m3), 17/04/2026 - 30/04/2026
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

Codecity17/0418/0419/0420/0421/0422/0423/0424/0425/0426/0427/0428/0429/0430/04
41B011 Sint-Agatha-Berchem 93 47 82 78 89.5 102.5 98.5 91 94 96.5 101 108 101.5 103
41MEU1 Neder-Over-Heembeek 95.5 52 87 81.5 92 106.5 103 92.5 93 100.5 107 112 105 106
41N043 Voorhaven (Haren) 88.5 46 85.5 78.5 88.5 100 95.5 86 91.5 96.5 101 107.5 99.5 102
41R001 Sint-Jans-Molenbeek 87.5 49 79 71 82.5 95.5 89.5 82.5 84 93.5 93 105.5 100 101.5
41R012 Ukkel 98.5 57 90 86.5 96.5 107.5 104.5 101 98 105.5 112 117 108 107
42N016 Dessel 102.5 68 95.5 89.5 100.5 112 111 107 107.5 110.5 112 114 109.5 118.5
42N027 Bree 107 76.5 94 94 97.5 103 107.5 108 108 107 110 111.5 106.5 112.5
42N035 Aarschot 102.5 63 96 94 101.5 110.5 105 103 108.5 109.5 113 115 110 114
42N040 Sint-Pieters-Leeuw 97 52.5 84 83.5 92.5 107 103 100 92.5 101 103.5 111.5 108 108.5
42N046 Gellik 107 81 94 93 93 110 106.5 103 105 106.5 107 113.5 107.5 112.5
42N047 Hasselt 102 65.5 93.5 91 96 109.5 104.5 100.5 100 106 111.5 115.5 107 113.5
42R801 Borgerhout 98.5 65 92 85 94.5 108 106 89 87 105.5 108.5 109.5 108.5 109
42R811 Schoten 104 59.5 92 54.5 95.5 65 108 95 97 106.5 110.5 112 113 119.5
42R842 Mechelen (Hendrik Speecqvest) 87.5 55.5 88.5 78 89 101.5 96.5 91 93.5 96.5 98.5 107 105 111.5
44M705 Roeselare (Haven) 93.5 90.5 88 88.5 91.5 111 98.5 96.5 92 114 99 110.5 109.5 107.5
44N012 Moerkerke 93.5 81 92.5 89 92 107 102.5 99.5 96 93 101 106.5 104 113.5
44N029 Houtem (Veurne) 88 97 90.5 89.5 87.5 97 96.5 97.5 97 95.5 103 100 101.5 114
44R701 Gent (Baudelopark) 91.5 75 87 87.5 93.5 109.5 99 93.5 101 99 99 113.5 110.5 110
44R710 Destelbergen 95.5 67.5 88 88 95 110 96 87 99.5 104.5 107.5 114.5 112 114.5
43N060 Havinnes 83 63 78 81 81.5 97 101 87.5 95.5 105.5 102 104 94.5 106.5
43N064 Rixensart 104.5 61 93 93 99.5 117.5 110 112 102.5 110 117 120 113 118.5
43N066 Eupen 104 89.5 84.5 88.5 81 108 100.5 100 111.5 93 103 114 104 107
43N070 Mons 92.5 56 85.5 89.5 94.5 110 106.5 104 101.5 109 108.5 116.5 107 117.5
43N073 Vezin 96.5 66 88.5 88.5 86.5 107 106 103 95 109 115 112 104 115.5
43N085 Vielsalm 105 91.5 85 92 86 106.5 105 107 103 101.5 112.5 114.5 104.5 107.5
43N093 Sinsin 94 89.5 91 91 83 107 110.5 104.5 101.5 98.5 106 114.5 107 115.5
43N100 Dourbes 104.5 97.5 94.5 100 96 115.5 120.5 116.5 111.5 117 119.5 124.5 116 126
43N113 Saint-Ode 103.5 93 92.5 89.5 88.5 107.5 108 106 104 107.5 104.5 117 105.5 113
43N121 Offagne 65.5 70 NA NA 71.5 88.5 97 97.5 91 92.5 88 101.5 96 103
43N132 Habay-La-Neuve 94.5 97 92 85.5 89.5 106 103 108.5 104 106.5 104.5 116.5 103.5 106.5
43R221 Herstal 103 82.5 92 92.5 89 108 116 99.5 100 104 108.5 112 108.5 110.5
43R222 Liège (ISSeP) 103 79.5 92 90.5 87.5 113 108.5 101.5 99.5 101 109 113 108 112.5
43R240 Engis 96 67 87 89 87.5 110 99.5 102 94 105.5 106 111 105.5 112.5
43R401 Namur 97.5 64 87.5 88.5 83.5 102 101 92.5 94 108.5 108 109.5 100.5 104
45R502 Lodelinsart 87 58.5 84 87 87.5 104.5 102.5 101 95.5 100 107 112.5 105 112.5
 
Interpolated spatial average in :
Brussels94498681921041009393100105110105106
Flanders96679088931061019697102105110107112
Wallonia937487898710410310198101104112104110
Belgium94718989901051029997102104111105111
 
% 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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