previous 14 days
O3 concentrations per day (µg/m3), 21/09/2025 - 04/10/2025
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

Codecity21/0922/0923/0924/0925/0926/0927/0928/0929/0930/0901/1002/1003/1004/10
41B011 Sint-Agatha-Berchem 63 64 64 63 42 39 57 74 72 78 65 73 53 73
41MEU1 Neder-Over-Heembeek 70 71 68 66 49 42 62 72 79 84 54 80 54 68
41N043 Voorhaven (Haren) 64 65 62 63 43 39 50 70 71 74 56 63 45 72
41R001 Sint-Jans-Molenbeek 65 66 NA 60 46 35 NA NA NA NA NA NA 43 68
41R012 Ukkel 68 72 68 66 46 42 56 72 81 83 70 76 55 77
42N016 Dessel 63 67 70 71 52 47 59 79 81 82 69 77 52 72
42N027 Bree 67 70 72 49 45 47 63 82 89 89 76 86 55 86
42N035 Aarschot 68 72 73 70 53 45 65 82 88 89 68 84 58 77
42N040 Sint-Pieters-Leeuw 66 69 67 65 46 47 68 81 84 81 77 79 56 81
42N046 Gellik 79 65 69 64 49 46 52 77 73 85 68 77 55 80
42N047 Hasselt 71 67 72 70 52 46 57 86 83 85 73 84 58 83
42R801 Borgerhout 73 74 71 69 50 42 57 74 71 81 62 68 45 85
42R811 Schoten 70 72 70 70 50 43 70 77 77 83 61 76 51 82
42R842 Mechelen (Hendrik Speecqvest) 67 69 64 64 45 36 62 75 73 73 50 72 52 73
44M705 Roeselare (Haven) 74 71 81 74 59 42 68 75 75 73 36 NA 55 76
44N012 Moerkerke 69 69 68 66 55 42 62 73 77 81 81 76 54 77
44N029 Houtem (Veurne) 72 71 73 64 51 41 64 70 72 69 87 80 59 71
44R701 Gent (Baudelopark) 71 67 67 64 46 40 71 77 75 77 68 73 54 77
44R710 Destelbergen 68 71 69 68 49 40 65 73 73 76 68 78 57 NA
43N060 Havinnes 72 73 75 70 55 45 60 78 80 80 94 80 58 83
43N064 Rixensart 72 75 75 69 53 54 66 83 91 91 75 85 58 82
43N066 Eupen 58 60 56 55 44 39 53 63 76 76 72 69 59 70
43N070 Mons 68 67 66 61 48 36 39 67 93 72 65 59 43 63
43N073 Vezin 66 62 67 56 44 43 59 76 82 83 77 80 55 79
43N085 Vielsalm 53 64 62 51 49 40 42 69 59 45 66 72 50 80
43N093 Sinsin 68 62 60 50 51 50 57 71 78 79 74 78 59 89
43N100 Dourbes 61 65 64 46 41 48 53 67 76 82 76 74 58 84
43N113 Saint-Ode 64 67 60 60 59 50 51 76 83 76 76 77 64 88
43N121 Offagne 56 60 56 51 55 44 41 74 78 70 70 73 52 75
43N132 Habay-La-Neuve 56 61 52 51 53 43 38 72 75 70 74 71 49 81
43R221 Herstal 66 58 61 53 34 46 50 74 68 79 67 77 56 84
43R222 Liège (ISSeP) 67 62 62 51 38 47 52 76 77 82 65 76 60 88
43R240 Engis 58 57 57 52 32 40 51 67 73 74 63 72 47 69
43R401 Namur 67 59 62 51 37 35 57 73 81 79 73 76 58 84
45R502 Lodelinsart 62 61 61 53 40 34 52 69 77 77 73 72 48 71
 
Interpolated spatial average in :
Brussels6568676645425774778066745375
Flanders7073737051466477808475805679
Wallonia6165635547454971777974765477
Belgium6568676149455574798174775578
 
% 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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