previous 14 days
O3 concentrations per day (µg/m3), 17/01/2026 - 30/01/2026
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

Codecity17/0118/0119/0120/0121/0122/0123/0124/0125/0126/0127/0128/0129/0130/01
41B011 Sint-Agatha-Berchem 52 26 14 42 50 42 49 65 39 29 50 33 32 48
41MEU1 Neder-Over-Heembeek 52 34 11 37 44 41 54 66 40 25 53 28 16 49
41N043 Voorhaven (Haren) 41 25 9 33 41 31 44 56 35 18 43 24 13 40
41R001 Sint-Jans-Molenbeek 39 18 5 31 38 32 39 54 28 17 38 15 23 37
41R012 Ukkel 49 49 17 43 51 44 54 66 45 26 57 32 43 51
42N016 Dessel 48 31 16 18 46 32 39 59 26 18 47 40 28 33
42N027 Bree 42 22 11 22 22 23 32 47 20 16 37 26 19 44
42N035 Aarschot 55 39 19 32 44 44 50 64 47 24 60 35 19 56
42N040 Sint-Pieters-Leeuw 54 53 18 51 55 51 56 71 45 29 62 33 58 58
42N046 Gellik 55 30 19 26 49 31 46 48 14 26 62 42 27 60
42N047 Hasselt 58 30 20 25 48 34 48 63 28 24 53 46 31 57
42R801 Borgerhout 35 39 7 23 35 33 28 NA 27 23 31 37 18 40
42R811 Schoten 44 44 10 26 46 37 47 64 32 24 41 37 22 53
42R842 Mechelen (Hendrik Speecqvest) 47 35 8 33 41 39 47 62 32 30 45 28 17 48
44M705 Roeselare (Haven) 55 45 20 46 53 47 56 60 49 29 45 26 48 62
44N012 Moerkerke 53 21 22 42 54 45 56 64 43 21 53 30 19 47
44N029 Houtem (Veurne) 49 35 29 42 47 48 54 60 47 29 67 41 57 57
44R701 Gent (Baudelopark) 53 48 23 41 51 45 57 69 35 24 51 33 23 42
44R710 Destelbergen 55 49 28 44 54 49 58 71 38 27 55 36 25 48
43N060 Havinnes 42 47 22 45 49 48 56 74 40 31 57 26 54 55
43N064 Rixensart 62 42 21 42 58 52 63 71 67 35 66 36 56 57
43N066 Eupen 66 45 24 55 72 68 59 61 40 16 67 45 39 63
43N070 Mons 51 47 19 40 52 48 53 76 43 24 61 34 38 NA
43N073 Vezin 68 59 23 37 55 53 56 67 81 40 62 33 33 59
43N085 Vielsalm 46 52 24 26 49 48 44 60 27 23 65 47 50 53
43N093 Sinsin 72 45 24 33 43 49 57 67 41 20 64 54 43 58
43N100 Dourbes 70 60 22 51 57 49 60 71 57 40 76 53 68 66
43N113 Saint-Ode 70 68 25 30 62 44 44 66 29 60 69 63 66 66
43N121 Offagne 52 47 18 15 35 27 44 53 22 30 57 49 52 48
43N132 Habay-La-Neuve 57 49 27 22 23 19 37 59 21 27 46 65 62 53
43R221 Herstal 60 20 17 26 49 41 44 59 26 20 54 38 21 44
43R222 Liège (ISSeP) 65 20 25 38 60 57 55 60 28 22 66 37 26 60
43R240 Engis 61 21 23 26 58 55 51 57 36 32 63 28 18 52
43R401 Namur 56 30 22 35 45 44 53 66 74 37 61 31 28 55
45R502 Lodelinsart 54 45 14 32 48 38 51 66 53 28 56 28 52 47
 
Interpolated spatial average in :
Brussels4630133545394762382049222746
Flanders5136213547434762372451312854
Wallonia5844223148445164372563424457
Belgium5540223347434963372558373755
 
% 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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