previous 14 days
O3 concentrations per day (µg/m3), 01/05/2026 - 14/05/2026
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

Codecity01/0502/0503/0504/0505/0506/0507/0508/0509/0510/0511/0512/0513/0514/05
41B011 Sint-Agatha-Berchem 117 96.5 72.5 68.5 56.5 79.5 86 95 115.5 101.5 90.5 85.5 80 71
41MEU1 Neder-Over-Heembeek 121.5 99.5 69 69.5 60.5 84.5 87.5 96 115.5 104 89.5 84.5 73.5 79.5
41N043 Voorhaven (Haren) 114.5 90.5 68 67.5 57.5 77.5 78 85.5 112.5 100.5 84.5 81 72.5 75
41R001 Sint-Jans-Molenbeek 115.5 95 77 67 58.5 71.5 77.5 86 108.5 96 78 76 71.5 67.5
41R012 Ukkel 117.5 99 73.5 75 60.5 83 85 92.5 119 105.5 91.5 87 78 78.5
42N016 Dessel 126 112 56.5 80 65 66.5 63.5 62 62 66 NA 68 74 84
42N027 Bree 109 111.5 67.5 81.5 62.5 73.5 96 94.5 120 107 94.5 96.5 84.5 83.5
42N035 Aarschot 124.5 112.5 73 82.5 63 98 89 104.5 121.5 108 97 96 78.5 83.5
42N040 Sint-Pieters-Leeuw 124.5 101.5 82 76 59 78 87 94 117 99.5 87 86 78.5 74.5
42N046 Gellik 123 106 71.5 74 62.5 71.5 97.5 100.5 127.5 109 91.5 97.5 82 88
42N047 Hasselt 122 105 68 78 58 79 95.5 104.5 123 109.5 90 97 80 82
42R801 Borgerhout 118 108.5 81.5 68.5 80.5 93 89.5 99.5 118 110 91.5 91.5 79.5 75
42R811 Schoten 127 114 87.5 65.5 71.5 93 89.5 98.5 120 108.5 97 92 75.5 76
42R842 Mechelen (Hendrik Speecqvest) 120 105.5 79.5 69 69 87.5 88.5 100 109.5 101.5 90 87.5 71.5 78.5
44M705 Roeselare (Haven) 127.5 116.5 92 89.5 97.5 97.5 83.5 103.5 132 114.5 96.5 85.5 82.5 84.5
44N012 Moerkerke 130 99 83.5 98.5 101.5 99 89 102 124 108 94 97 78.5 83
44N029 Houtem (Veurne) 116.5 110.5 78.5 99.5 104.5 101 80.5 111.5 113.5 111.5 93.5 96 77.5 84
44R701 Gent (Baudelopark) 127 113.5 NA 79 94 99 95 109.5 127.5 114.5 92.5 91 76 78.5
44R710 Destelbergen 127 114 91 77 99 97.5 91 109.5 131 116.5 93 94 78 72.5
43N060 Havinnes 113.5 96 77.5 86 74.5 90 93 93.5 108.5 101 84 83.5 68 77
43N064 Rixensart 124.5 104 68.5 75.5 55.5 82 99 102 128 110.5 92 94.5 85 90
43N066 Eupen 111.5 105 80 76 42 58 91 95 107 107 81.5 89 78 72.5
43N070 Mons 108.5 85.5 62 76.5 59 67.5 85.5 88 115 93 85 76 61.5 80
43N073 Vezin 122 99 61 66.5 48.5 70.5 91.5 90 116.5 104 85 88.5 76.5 70.5
43N085 Vielsalm 113 112 83.5 69 59 63 74.5 83.5 100.5 103.5 70.5 77.5 71 72.5
43N093 Sinsin 124 103.5 73 69 56 72.5 86 88 111 103.5 85.5 87.5 79.5 81.5
43N100 Dourbes 130.5 109.5 78 81.5 55 77 90.5 96 119.5 109.5 92.5 95.5 80.5 79
43N113 Saint-Ode 122.5 107 82.5 86.5 75.5 67 75.5 93 104.5 98 82 84.5 84 78.5
43N121 Offagne 107 88.5 52 44 16.5 52 50 74 75 84.5 69 79.5 71.5 58
43N132 Habay-La-Neuve 118.5 100 79 72 71.5 66 78.5 93.5 102 102 79.5 84 81 74
43R221 Herstal 119.5 103.5 76 62 43.5 68.5 97.5 96 116 109 90.5 93.5 79.5 79
43R222 Liège (ISSeP) 121 104 76 67 47 71 91.5 96 117.5 110 85 90 79 77.5
43R240 Engis 116.5 96 63 57 33 54 87.5 90.5 117 105 84.5 88 71.5 69
43R401 Namur 120 98.5 62.5 69 55.5 75 90 89 112 107 87 91 81.5 73.5
45R502 Lodelinsart 121 94.5 51.5 62.5 55 59 87 87.5 112.5 98 83.5 78.5 69 73.5
 
Interpolated spatial average in :
Brussels1189671655878839111510287857677
Flanders122108757875898910111910893937880
Wallonia116986969516681891059982837473
Belgium11910271736276859411110387887676
 
% 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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