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O3 concentrations per day (µg/m3), 04/01/2026 - 17/01/2026
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- 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

Codecity04/0105/0106/0107/0108/0109/0110/0111/0112/0113/0114/0115/0116/0117/01
41B011 Sint-Agatha-Berchem 60 48.5 45.5 59.5 59 76 48.5 55.5 58.5 40 36.5 67.5 76 51.5
41MEU1 Neder-Over-Heembeek 55 36 43 53 57.5 73.5 50.5 55 56.5 41.5 38.5 65 70.5 52
41N043 Voorhaven (Haren) 49.5 22.5 31.5 44.5 49.5 66 44 48 50 35.5 30.5 56 67 41
41R001 Sint-Jans-Molenbeek 39.5 26 38 48 54 71.5 33.5 47.5 52.5 35 30.5 57.5 63 38.5
41R012 Ukkel 49 43.5 46 59.5 61 76 45 54 59 46.5 39 72 69.5 49
42N016 Dessel 50 46 44.5 58 46.5 69.5 54 50 53 39 42.5 66 62.5 47.5
42N027 Bree 60.5 54 64.5 67 54.5 77.5 50.5 54.5 61 48.5 46 62.5 74 41.5
42N035 Aarschot 53 52 52.5 61 55 74.5 47.5 53 58.5 46.5 42 73 71.5 54.5
42N040 Sint-Pieters-Leeuw 51 44.5 52.5 60 62 73.5 47 56.5 59.5 44 40 70 72.5 54
42N046 Gellik 58.5 52.5 54.5 63 53.5 75 48.5 54.5 62 46 46.5 65 71.5 54.5
42N047 Hasselt 55 50.5 52.5 62 48.5 32.5 47 51.5 60.5 48 44 63.5 72.5 58
42R801 Borgerhout 57 35 38.5 53.5 45.5 68.5 47.5 48.5 51 36.5 33.5 57 68 35
42R811 Schoten 63 40 39.5 54.5 49.5 75.5 48 51 53 37.5 45 64.5 75 43.5
42R842 Mechelen (Hendrik Speecqvest) 52 42 45 55.5 52.5 75.5 44 54.5 57.5 39.5 37.5 63 72.5 47
44M705 Roeselare (Haven) 66 56.5 51 54.5 69 73.5 59 56.5 71 42 49.5 61 76 54.5
44N012 Moerkerke 66 66.5 62 56 55.5 73 52.5 57.5 67.5 41 53.5 60.5 71.5 53
44N029 Houtem (Veurne) 62.5 68.5 65.5 59 71.5 77 59.5 59.5 70.5 47.5 59.5 61.5 70.5 48.5
44R701 Gent (Baudelopark) 61.5 47 40.5 53 65 78 47.5 56.5 59.5 40 39.5 64.5 77 53
44R710 Destelbergen 54 NA 44.5 57 66 75.5 45.5 58.5 60 41 40 66 76.5 54.5
43N060 Havinnes 58.5 30.5 31.5 52 54.5 72.5 52.5 54 53.5 40 36 58 73 42
43N064 Rixensart 61 56 52 64 62.5 79.5 51 59 62.5 52.5 44.5 78 73.5 62
43N066 Eupen 57.5 59.5 53 61 51 64 41 48.5 55.5 44 46.5 59.5 61.5 65.5
43N070 Mons 47.5 10.5 NA 54 60 74.5 47 55 55.5 39.5 38 64 64.5 51
43N073 Vezin 57.5 49 54.5 63 62.5 77.5 47.5 57 60.5 52 49 66.5 72.5 67.5
43N085 Vielsalm 62 56.5 58 60 47 NA 41 50 51.5 38 38.5 50.5 56.5 45.5
43N093 Sinsin 67 52 59 68 68 82.5 48.5 58.5 65 52.5 53.5 69.5 74.5 72
43N100 Dourbes 63 53.5 57 63.5 72.5 79 54.5 58 59 52.5 51 68.5 70.5 69.5
43N113 Saint-Ode 70 57 64.5 67 67.5 81 50 58 60 51.5 52 66.5 70.5 69.5
43N121 Offagne 51 40.5 45 56 53 65.5 36.5 45.5 47 NA 27 56 54 51.5
43N132 Habay-La-Neuve 60.5 52 59 61.5 61.5 72 53 48.5 50.5 47 42.5 62 64 57
43R221 Herstal 55.5 44.5 53.5 59 48 73 40.5 49.5 59 46 45 63 70.5 59.5
43R222 Liège (ISSeP) 59.5 54.5 58.5 65 60 79 41.5 55.5 65 52.5 49.5 70 74 64.5
43R240 Engis 49.5 51 50 60 51 68 38 49.5 55 44.5 43.5 63.5 68 61
43R401 Namur 57.5 44 51.5 57 58.5 77 NA 53 57 48.5 47.5 65 70.5 55.5
45R502 Lodelinsart 46 35.5 42 51.5 54 66.5 41 48 53 41.5 36 62.5 62.5 53.5
 
Interpolated spatial average in :
Brussels4836425558744152564336667046
Flanders6049496158775156614445667551
Wallonia5947526461764753584845646758
Belgium5948516260774955594645657155
 
% 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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