previous 14 days
O3 concentrations per day (µg/m3), 31/12/2025 - 13/01/2026
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

Codecity31/1201/0102/0103/0104/0105/0106/0107/0108/0109/0110/0111/0112/0113/01
41B011 Sint-Agatha-Berchem 59 64 71 68 60 49 46 60 59 76 49 56 59 40
41MEU1 Neder-Over-Heembeek 46 60 68 64 55 36 43 53 58 74 51 55 57 42
41N043 Voorhaven (Haren) 44 56 63 57 50 23 32 45 50 66 44 48 50 36
41R001 Sint-Jans-Molenbeek 34 53 55 50 40 26 38 48 54 72 34 48 53 35
41R012 Ukkel 50 60 69 66 49 44 46 60 61 76 45 54 59 47
42N016 Dessel 52 62 69 59 50 46 45 58 47 70 54 50 53 39
42N027 Bree 51 72 72 68 61 54 65 67 55 78 51 55 61 49
42N035 Aarschot 56 64 71 66 53 52 53 61 55 75 48 53 59 47
42N040 Sint-Pieters-Leeuw 51 63 69 66 51 45 53 60 62 74 47 57 60 44
42N046 Gellik 49 67 66 65 59 53 55 63 54 75 49 55 62 46
42N047 Hasselt 46 69 69 65 55 51 53 62 49 33 47 52 61 48
42R801 Borgerhout 53 68 69 60 57 35 39 54 46 69 48 49 51 37
42R811 Schoten 56 70 68 60 63 40 40 55 50 76 48 51 53 38
42R842 Mechelen (Hendrik Speecqvest) 48 66 68 62 52 42 45 56 53 76 44 55 58 40
44M705 Roeselare (Haven) 64 73 74 69 66 57 51 55 69 74 59 57 71 42
44N012 Moerkerke 67 74 74 67 66 67 62 56 56 73 53 58 68 41
44N029 Houtem (Veurne) 69 70 74 68 63 69 66 59 72 77 60 60 71 48
44R701 Gent (Baudelopark) 58 69 69 65 62 47 41 53 65 78 48 57 60 40
44R710 Destelbergen 61 72 75 67 54 NA 45 57 66 76 46 59 60 41
43N060 Havinnes 41 60 71 62 59 31 32 52 55 73 53 54 54 40
43N064 Rixensart 49 70 75 71 61 56 52 64 63 80 51 59 63 53
43N066 Eupen 41 58 63 61 58 60 53 61 51 64 41 49 56 44
43N070 Mons 25 57 58 56 48 11 NA 54 60 75 47 55 56 40
43N073 Vezin 54 66 66 65 58 49 55 63 63 78 48 57 61 52
43N085 Vielsalm 49 61 65 65 62 57 58 60 47 NA 41 50 52 38
43N093 Sinsin 57 69 69 71 67 52 59 68 68 83 49 59 65 53
43N100 Dourbes 51 64 69 70 63 54 57 64 73 79 55 58 59 53
43N113 Saint-Ode 64 68 72 74 70 57 65 67 68 81 50 58 60 52
43N121 Offagne 32 41 38 55 51 41 45 56 53 66 37 46 47 NA
43N132 Habay-La-Neuve 40 57 71 61 61 52 59 62 62 72 53 49 51 47
43R221 Herstal 44 64 62 59 56 45 54 59 48 73 41 50 59 46
43R222 Liège (ISSeP) 56 68 65 60 60 55 59 65 60 79 42 56 65 53
43R240 Engis 25 45 60 60 50 51 50 60 51 68 38 50 55 45
43R401 Namur 56 67 61 64 58 44 52 57 59 77 NA 53 57 49
45R502 Lodelinsart 37 55 58 52 46 36 42 52 54 67 41 48 53 42
 
Interpolated spatial average in :
Brussels4461646148364255587441525643
Flanders5572736660494961587751566144
Wallonia4562646459475264617647535848
Belgium4967686559485162607749555946
 
% 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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