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O3 concentrations per day (µg/m3), 09/01/2026 - 22/01/2026
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

Codecity09/0110/0111/0112/0113/0114/0115/0116/0117/0118/0119/0120/0121/0122/01
41B011 Sint-Agatha-Berchem 76 48.5 55.5 58.5 40 36.5 67.5 76 51.5 26 13.5 42 50 42
41MEU1 Neder-Over-Heembeek 73.5 50.5 55 56.5 41.5 38.5 65 70.5 52 34 11 37 44 41
41N043 Voorhaven (Haren) 66 44 48 50 35.5 30.5 56 67 41 24.5 9 32.5 40.5 30.5
41R001 Sint-Jans-Molenbeek 71.5 33.5 47.5 52.5 35 30.5 57.5 63 38.5 17.5 5 31 38 31.5
41R012 Ukkel 76 45 54 59 46.5 39 72 69.5 49 49 17 43 50.5 43.5
42N016 Dessel 69.5 54 50 53 39 42.5 66 62.5 47.5 30.5 15.5 17.5 45.5 32
42N027 Bree 77.5 50.5 54.5 61 48.5 46 62.5 74 41.5 22 11 22 22 22.5
42N035 Aarschot 74.5 47.5 53 58.5 46.5 42 73 71.5 54.5 39 19 32 44 43.5
42N040 Sint-Pieters-Leeuw 73.5 47 56.5 59.5 44 40 70 72.5 54 53 17.5 50.5 54.5 50.5
42N046 Gellik 75 48.5 54.5 62 46 46.5 65 71.5 54.5 29.5 19 26 49 31
42N047 Hasselt 32.5 47 51.5 60.5 48 44 63.5 72.5 58 30 19.5 24.5 47.5 34
42R801 Borgerhout 68.5 47.5 48.5 51 36.5 33.5 57 68 35 38.5 6.5 22.5 35 32.5
42R811 Schoten 75.5 48 51 53 37.5 45 64.5 75 43.5 43.5 10 26 45.5 36.5
42R842 Mechelen (Hendrik Speecqvest) 75.5 44 54.5 57.5 39.5 37.5 63 72.5 47 35 8 32.5 41 38.5
44M705 Roeselare (Haven) 73.5 59 56.5 71 42 49.5 61 76 54.5 45 19.5 46 53 47
44N012 Moerkerke 73 52.5 57.5 67.5 41 53.5 60.5 71.5 53 20.5 21.5 42 54 44.5
44N029 Houtem (Veurne) 77 59.5 59.5 70.5 47.5 59.5 61.5 70.5 48.5 34.5 28.5 41.5 47 48
44R701 Gent (Baudelopark) 78 47.5 56.5 59.5 40 39.5 64.5 77 53 47.5 22.5 40.5 51 44.5
44R710 Destelbergen 75.5 45.5 58.5 60 41 40 66 76.5 54.5 49 27.5 43.5 53.5 48.5
43N060 Havinnes 72.5 52.5 54 53.5 40 36 58 73 42 46.5 22 44.5 48.5 47.5
43N064 Rixensart 79.5 51 59 62.5 52.5 44.5 78 73.5 62 42 20.5 42 58 52
43N066 Eupen 64 41 48.5 55.5 44 46.5 59.5 61.5 65.5 44.5 24 55 71.5 68
43N070 Mons 74.5 47 55 55.5 39.5 38 64 64.5 51 47 18.5 40 52 47.5
43N073 Vezin 77.5 47.5 57 60.5 52 49 66.5 72.5 67.5 58.5 22.5 37 54.5 52.5
43N085 Vielsalm NA 41 50 51.5 38 38.5 50.5 56.5 45.5 51.5 24 25.5 49 48
43N093 Sinsin 82.5 48.5 58.5 65 52.5 53.5 69.5 74.5 72 44.5 24 32.5 42.5 49
43N100 Dourbes 79 54.5 58 59 52.5 51 68.5 70.5 69.5 59.5 22 50.5 56.5 49
43N113 Saint-Ode 81 50 58 60 51.5 52 66.5 70.5 69.5 68 25 30 62 43.5
43N121 Offagne 65.5 36.5 45.5 47 NA 27 56 54 51.5 46.5 17.5 15 35 26.5
43N132 Habay-La-Neuve 72 53 48.5 50.5 47 42.5 62 64 57 49 27 21.5 22.5 18.5
43R221 Herstal 73 40.5 49.5 59 46 45 63 70.5 59.5 19.5 17 25.5 48.5 41
43R222 Liège (ISSeP) 79 41.5 55.5 65 52.5 49.5 70 74 64.5 19.5 24.5 37.5 60 56.5
43R240 Engis 68 38 49.5 55 44.5 43.5 63.5 68 61 21 22.5 26 58 55
43R401 Namur 77 NA 53 57 48.5 47.5 65 70.5 55.5 30 22 34.5 44.5 44
45R502 Lodelinsart 66.5 41 48 53 41.5 36 62.5 62.5 53.5 44.5 13.5 32 47.5 38
 
Interpolated spatial average in :
Brussels7441525643366670463013354539
Flanders7751566144456675513621354743
Wallonia7647535848456467584422314844
Belgium7749555946456571554022334743
 
% 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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