previous 14 days
O3 concentrations per day (µg/m3), 16/02/2026 - 01/03/2026
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

Codecity16/0217/0218/0219/0220/0221/0222/0223/0224/0225/0226/0227/0228/0201/03
41B011 Sint-Agatha-Berchem 63 NA NA NA 72 77 72 80 60 62.5 74 70.5 79 79.5
41MEU1 Neder-Over-Heembeek 73 74 70 57 71.5 67 67.5 76.5 48 63 70 68 74.5 77.5
41N043 Voorhaven (Haren) 67 69.5 62.5 NA 66 66 65 72 49 48 64.5 62 69.5 73.5
41R001 Sint-Jans-Molenbeek 58 58 58 48 60.5 60.5 58 65 48 50.5 60 61.5 70.5 73.5
41R012 Ukkel 74.5 73 69 54 70 74.5 70.5 77 56 63.5 76.5 74 79 82
42N016 Dessel 67.5 74.5 68 58.5 61.5 65 62.5 75 54 58.5 68 75 72.5 75.5
42N027 Bree 71.5 81.5 67.5 63 70 76 74 85 71 66 80.5 88.5 84.5 85
42N035 Aarschot 73 76 62 53.5 71 76 67.5 77 64 62 78.5 78.5 79 81
42N040 Sint-Pieters-Leeuw 73.5 75.5 72 58 72.5 78.5 72 77 63 65.5 72.5 70.5 76 79
42N046 Gellik 73 72.5 62 54 67 77.5 70 81 66 64.5 78 88 81 80.5
42N047 Hasselt 71.5 76.5 65 53.5 69.5 76.5 72 80 64.5 63 78.5 83.5 81.5 81
42R801 Borgerhout 67.5 70.5 60 52 66.5 72.5 64 72.5 58 45.5 56.5 62.5 72 77
42R811 Schoten 65 77.5 71 58 73 81 69 80.5 61 57.5 74.5 68 77 82
42R842 Mechelen (Hendrik Speecqvest) 71 75 64 55 72 76 70 73 53.5 57.5 74.5 68 78.5 79.5
44M705 Roeselare (Haven) 71.5 79 66 52 78.5 80 73.5 75.5 61 56.5 78 60 77 74
44N012 Moerkerke 72.5 74 63.5 47.5 76.5 78.5 70.5 78.5 54.5 58.5 75.5 61 73 69
44N029 Houtem (Veurne) 71.5 78 67.5 53 77 75.5 72.5 74 60 54.5 74.5 61.5 74.5 69
44R701 Gent (Baudelopark) 71.5 72.5 40.5 52 72 75.5 68.5 75 55.5 59.5 76.5 65.5 76 73.5
44R710 Destelbergen 74.5 75 68.5 58.5 74.5 77 70.5 78.5 55.5 65.5 82 66 78 76
43N060 Havinnes 77 75 71 51 80 80 71 79.5 61 53 79 58.5 76 77.5
43N064 Rixensart 77.5 80 77.5 56.5 74.5 79.5 72.5 83.5 59.5 66 82.5 81 82.5 85
43N066 Eupen 63 64.5 66.5 53 59 65 58 72.5 59 52.5 71.5 79 79.5 77
43N070 Mons 61 66.5 72 50.5 64.5 68.5 60 64 51 50.5 64.5 62 73 75
43N073 Vezin 74 75.5 75.5 58.5 70.5 76.5 65 78 60 62 75 87.5 81.5 79
43N085 Vielsalm 67 64.5 64.5 53.5 57.5 74 54.5 70 46.5 44 58.5 72 73 73.5
43N093 Sinsin NA 75.5 76 59.5 67.5 78 NA 79.5 59 61.5 72 86.5 84 82.5
43N100 Dourbes 83.5 82.5 79.5 97 75 85.5 72 85.5 66.5 68 78 93.5 87 89
43N113 Saint-Ode 81.5 78 79 61.5 71.5 84 69.5 82.5 65 54.5 71.5 83 82 84
43N121 Offagne 59.5 52.5 67.5 45 48 61.5 38.5 76 40.5 42 56 74 69.5 73
43N132 Habay-La-Neuve NA NA 76 55.5 64.5 69 59.5 74 58.5 42 64.5 76 74 78
43R221 Herstal 65 68.5 71.5 57.5 63.5 72.5 65 75 49.5 58.5 72.5 83 79.5 80
43R222 Liège (ISSeP) 69 70 76.5 62 70.5 71 63 76.5 56.5 68 77 87.5 83 84
43R240 Engis 57.5 66 72.5 52.5 47 56 57 69.5 49 54.5 70.5 79 77.5 77
43R401 Namur NA 76.5 70 56 73.5 77 64.5 78 59 58.5 72.5 86.5 82.5 81
45R502 Lodelinsart 65 64.5 67.5 48 55 67.5 56 64.5 50.5 59 65.5 77 74.5 77
 
Interpolated spatial average in :
Brussels6869655367706675555870687578
Flanders7378695673757080616277718078
Wallonia7472745765726278555671807979
Belgium7375725668736579585874767979
 
% 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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