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O3 concentrations per day (µg/m3), 26/04/2026 - 09/05/2026
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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

Codecity26/0427/0428/0429/0430/0401/0502/0503/0504/0505/0506/0507/0508/0509/05
41B011 Sint-Agatha-Berchem 96.5 101 108 101.5 103 117 96.5 72.5 68.5 56.5 79.5 86 95 115.5
41MEU1 Neder-Over-Heembeek 100.5 107 112 105 106 121.5 99.5 69 69.5 60.5 84.5 87.5 96 115.5
41N043 Voorhaven (Haren) 96.5 101 107.5 99.5 102 114.5 90.5 68 67.5 57.5 77.5 78 85.5 112.5
41R001 Sint-Jans-Molenbeek 93.5 93 105.5 100 101.5 115.5 95 77 67 58.5 71.5 77.5 86 108.5
41R012 Ukkel 105.5 112 117 108 107 117.5 99 73.5 75 60.5 83 85 92.5 119
42N016 Dessel 110.5 112 114 109.5 118.5 126 112 56.5 80 65 66.5 63.5 62 62
42N027 Bree 107 110 111.5 106.5 112.5 109 111.5 67.5 81.5 62.5 73.5 96 94.5 120
42N035 Aarschot 109.5 113 115 110 114 124.5 112.5 73 82.5 63 98 89 104.5 121.5
42N040 Sint-Pieters-Leeuw 101 103.5 111.5 108 108.5 124.5 101.5 82 76 59 78 87 94 117
42N046 Gellik 106.5 107 113.5 107.5 112.5 123 106 71.5 74 62.5 71.5 97.5 100.5 127.5
42N047 Hasselt 106 111.5 115.5 107 113.5 122 105 68 78 58 79 95.5 104.5 123
42R801 Borgerhout 105.5 108.5 109.5 108.5 109 118 108.5 81.5 68.5 80.5 93 89.5 99.5 118
42R811 Schoten 106.5 110.5 112 113 119.5 127 114 87.5 65.5 71.5 93 89.5 98.5 120
42R842 Mechelen (Hendrik Speecqvest) 96.5 98.5 107 105 111.5 120 105.5 79.5 69 69 87.5 88.5 100 109.5
44M705 Roeselare (Haven) 114 99 110.5 109.5 107.5 127.5 116.5 92 89.5 97.5 97.5 83.5 103.5 132
44N012 Moerkerke 93 101 106.5 104 113.5 130 99 83.5 98.5 101.5 99 89 102 124
44N029 Houtem (Veurne) 95.5 103 100 101.5 114 116.5 110.5 78.5 99.5 104.5 101 80.5 111.5 113.5
44R701 Gent (Baudelopark) 99 99 113.5 110.5 110 127 113.5 NA 79 94 99 95 109.5 127.5
44R710 Destelbergen 104.5 107.5 114.5 112 114.5 127 114 91 77 99 97.5 91 109.5 131
43N060 Havinnes 105.5 102 104 94.5 106.5 113.5 96 77.5 86 74.5 90 93 93.5 108.5
43N064 Rixensart 110 117 120 113 118.5 124.5 104 68.5 75.5 55.5 82 99 102 128
43N066 Eupen 93 103 114 104 107 111.5 105 80 76 42 58 91 95 107
43N070 Mons 109 108.5 116.5 107 117.5 108.5 85.5 62 76.5 59 67.5 85.5 88 115
43N073 Vezin 109 115 112 104 115.5 122 99 61 66.5 48.5 70.5 91.5 90 116.5
43N085 Vielsalm 101.5 112.5 114.5 104.5 107.5 113 112 83.5 69 59 63 74.5 83.5 100.5
43N093 Sinsin 98.5 106 114.5 107 115.5 124 103.5 73 69 56 72.5 86 88 111
43N100 Dourbes 117 119.5 124.5 116 126 130.5 109.5 78 81.5 55 77 90.5 96 119.5
43N113 Saint-Ode 107.5 104.5 117 105.5 113 122.5 107 82.5 86.5 75.5 67 75.5 93 104.5
43N121 Offagne 92.5 88 101.5 96 103 107 88.5 52 44 16.5 52 50 74 75
43N132 Habay-La-Neuve 106.5 104.5 116.5 103.5 106.5 118.5 100 79 72 71.5 66 78.5 93.5 102
43R221 Herstal 104 108.5 112 108.5 110.5 119.5 103.5 76 62 43.5 68.5 97.5 96 116
43R222 Liège (ISSeP) 101 109 113 108 112.5 121 104 76 67 47 71 91.5 96 117.5
43R240 Engis 105.5 106 111 105.5 112.5 116.5 96 63 57 33 54 87.5 90.5 117
43R401 Namur 108.5 108 109.5 100.5 104 120 98.5 62.5 69 55.5 75 90 89 112
45R502 Lodelinsart 100 107 112.5 105 112.5 121 94.5 51.5 62.5 55 59 87 87.5 112.5
 
Interpolated spatial average in :
Brussels10010511010510611896716558788391115
Flanders1021051101071121221087578758989101119
Wallonia10110411210411011698696951668189105
Belgium102104111105111119102717362768594111
 
% 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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