previous 14 days
O3 concentrations per day (µg/m3), 25/12/2025 - 07/01/2026
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

Codecity25/1226/1227/1228/1229/1230/1231/1201/0102/0103/0104/0105/0106/0107/01
41B011 Sint-Agatha-Berchem 52 18 52 68 34 59 59 64 71 68 60 49 46 60
41MEU1 Neder-Over-Heembeek 52 23 54 62 38 66 46 60 68 64 55 36 43 53
41N043 Voorhaven (Haren) 51 20 52 62 36 59 44 56 63 57 50 23 32 45
41R001 Sint-Jans-Molenbeek 43 12 35 48 24 48 34 53 55 50 40 26 38 48
41R012 Ukkel 50 22 52 61 49 65 50 60 69 66 49 44 46 60
42N016 Dessel 53 30 57 62 43 63 52 62 69 59 50 46 45 58
42N027 Bree 47 26 56 58 42 60 51 72 72 68 61 54 65 67
42N035 Aarschot 52 29 59 62 35 60 56 64 71 66 53 52 53 61
42N040 Sint-Pieters-Leeuw 49 20 51 65 27 61 51 63 69 66 51 45 53 60
42N046 Gellik 43 30 36 55 32 59 49 67 66 65 59 53 55 63
42N047 Hasselt 46 28 59 61 28 58 46 69 69 65 55 51 53 62
42R801 Borgerhout 53 22 50 61 33 57 53 68 69 60 57 35 39 54
42R811 Schoten 55 29 56 64 27 60 56 70 68 60 63 40 40 55
42R842 Mechelen (Hendrik Speecqvest) 52 21 48 57 35 57 48 66 68 62 52 42 45 56
44M705 Roeselare (Haven) 54 20 59 72 43 67 64 73 74 69 66 57 51 55
44N012 Moerkerke 55 22 54 68 51 69 67 74 74 67 66 67 62 56
44N029 Houtem (Veurne) 51 22 52 67 44 69 69 70 74 68 63 69 66 59
44R701 Gent (Baudelopark) 50 22 51 68 26 56 58 69 69 65 62 47 41 53
44R710 Destelbergen 56 26 53 71 27 72 61 72 75 67 54 NA 45 57
43N060 Havinnes 51 19 49 66 32 53 41 60 71 62 59 31 32 52
43N064 Rixensart 50 28 53 64 46 71 49 70 75 71 61 56 52 64
43N066 Eupen 42 43 57 62 64 51 41 58 63 61 58 60 53 61
43N070 Mons 50 24 53 64 40 55 25 57 58 56 48 11 NA 54
43N073 Vezin 41 23 30 53 43 57 54 66 66 65 58 49 55 63
43N085 Vielsalm 46 41 64 66 67 64 49 61 65 65 62 57 58 60
43N093 Sinsin 47 39 51 61 76 65 57 69 69 71 67 52 59 68
43N100 Dourbes 44 25 40 61 69 73 51 64 69 70 63 54 57 64
43N113 Saint-Ode 47 46 71 71 73 74 64 68 72 74 70 57 65 67
43N121 Offagne 37 37 63 56 62 59 32 41 38 55 51 41 45 56
43N132 Habay-La-Neuve 44 38 67 70 74 76 40 57 71 61 61 52 59 62
43R221 Herstal 39 21 20 49 1 44 44 64 62 59 56 45 54 59
43R222 Liège (ISSeP) 42 22 26 60 9 42 56 68 65 60 60 55 59 65
43R240 Engis 39 20 23 50 14 34 25 45 60 60 50 51 50 60
43R401 Namur 38 15 28 46 33 49 56 67 61 64 58 44 52 57
45R502 Lodelinsart 41 17 40 53 37 59 37 55 58 52 46 36 42 52
 
Interpolated spatial average in :
Brussels4920455929584461646148364255
Flanders5328516433645572736660494961
Wallonia4632476149634562646459475264
Belgium4930496242634967686559485162
 
% 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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