| Code | city | 25/12 | 26/12 | 27/12 | 28/12 | 29/12 | 30/12 | 31/12 | 01/01 | 02/01 | 03/01 | 04/01 | 05/01 | 06/01 | 07/01 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 41B011 | Sint-Agatha-Berchem | 38 | 26 | 5 | 16 | 20 | 39 | 48 | 79 | 75 | 50 | 44 | 64 | 73 | 75 | |
| 41MEU1 | Neder-Over-Heembeek | 34 | 26 | 10 | 14 | 16 | 27 | 38 | 76 | 67 | 44 | 44 | 54 | 65 | 66 | |
| 41N043 | Voorhaven (Haren) | 33 | 27 | 13 | 19 | 19 | 34 | 47 | 79 | 73 | 43 | 41 | NA | 59 | 61 | |
| 41R001 | Sint-Jans-Molenbeek | 36 | 28 | 7 | 21 | 19 | 35 | 49 | 74 | 72 | 41 | 40 | 64 | 70 | 73 | |
| 41R012 | Ukkel | 43 | 25 | 8 | 14 | 21 | 40 | 48 | 80 | 72 | 45 | 44 | 69 | 69 | 73 | |
| 42N016 | Dessel | 45 | 37 | 14 | 10 | 23 | 40 | 46 | 80 | 73 | 56 | 46 | 64 | 72 | 71 | |
| 42N027 | Bree | 37 | 31 | 11 | 10 | 29 | 43 | 46 | 88 | 85 | 59 | 47 | 67 | 78 | 81 | |
| 42N035 | Aarschot | 47 | 39 | 17 | 13 | 28 | 45 | 49 | 85 | 83 | 58 | 43 | 70 | 77 | 80 | |
| 42N040 | Sint-Pieters-Leeuw | 45 | 34 | 10 | 23 | 22 | 45 | 48 | 83 | 81 | 52 | 48 | 67 | 75 | 77 | |
| 42N046 | Gellik | 38 | 19 | 11 | 14 | 34 | 43 | 44 | 87 | 83 | 57 | 52 | 69 | 76 | 79 | |
| 42N047 | Hasselt | 34 | 36 | 11 | 7 | 24 | 39 | 42 | 89 | 82 | 52 | 50 | 64 | 74 | 77 | |
| 42R801 | Borgerhout | 46 | 35 | 18 | 7 | 21 | 40 | 49 | 83 | 75 | 47 | 33 | 62 | 75 | 77 | |
| 42R811 | Schoten | 49 | 34 | 19 | 8 | 12 | 42 | 50 | 81 | 76 | 50 | 39 | 63 | 75 | 76 | |
| 42R842 | Mechelen (Hendrik Speecqvest) | 37 | 33 | 15 | 11 | 26 | 40 | 50 | 81 | 80 | 49 | 39 | 67 | 75 | 81 | |
| 44M705 | Roeselare (Haven) | 60 | 54 | 13 | 16 | 35 | 50 | 53 | 83 | 80 | 58 | 46 | 69 | 76 | 75 | |
| 44N012 | Moerkerke | 59 | 59 | 15 | 17 | 37 | 49 | 54 | 84 | 76 | 68 | 42 | 67 | 78 | 75 | |
| 44N029 | Houtem (Veurne) | 62 | 62 | 25 | 13 | 55 | 55 | 62 | 88 | 81 | 65 | 49 | 71 | 77 | 71 | |
| 44R701 | Gent (Baudelopark) | 37 | 54 | 10 | 16 | 21 | 44 | 50 | 82 | 77 | 56 | 43 | 67 | 77 | 77 | |
| 44R710 | Destelbergen | 36 | 49 | 11 | 18 | 22 | 44 | 51 | 62 | NA | 59 | 45 | 66 | 77 | 78 | |
| 43N060 | Havinnes | 33 | 30 | 7 | 14 | 9 | 36 | 37 | 71 | 71 | 50 | 49 | 55 | 71 | 68 | |
| 43N064 | Rixensart | 43 | 34 | 8 | 15 | 21 | 38 | 43 | 80 | 76 | 48 | 47 | 62 | 70 | 73 | |
| 43N066 | Eupen | 38 | 21 | 32 | 31 | 25 | 28 | 48 | 80 | 80 | 54 | 64 | 72 | 68 | 68 | |
| 43N070 | Mons | 35 | 29 | 5 | 10 | 11 | 30 | 41 | 63 | 66 | 43 | 49 | 60 | 68 | 67 | |
| 43N073 | Vezin | 34 | 29 | 5 | 20 | 27 | 35 | 40 | 79 | 78 | 48 | 51 | NA | 70 | 72 | |
| 43N085 | Vielsalm | 35 | 41 | 52 | 31 | 28 | 32 | 38 | 57 | 80 | 67 | 58 | 67 | 71 | 72 | |
| 43N093 | Sinsin | 42 | 28 | 23 | 18 | 28 | 37 | 39 | 68 | 89 | 59 | 56 | 67 | 77 | 74 | |
| 43N100 | Dourbes | 33 | 28 | 12 | 17 | 23 | 32 | 38 | 68 | 81 | 54 | 61 | 65 | 73 | 72 | |
| 43N113 | Saint-Ode | 47 | 52 | 53 | 33 | 31 | 32 | 38 | 60 | 87 | 67 | 57 | 70 | 76 | 77 | |
| 43N121 | Offagne | 42 | 49 | 48 | 34 | 28 | 33 | 36 | 57 | 82 | 57 | 50 | 64 | 73 | 72 | |
| 43N132 | Habay-La-Neuve | 39 | 48 | 44 | 20 | 20 | 29 | 33 | 58 | 79 | 57 | 46 | 64 | 71 | 70 | |
| 43R221 | Herstal | 36 | 19 | 4 | 14 | 22 | 28 | 39 | 76 | 79 | 49 | 54 | 61 | 71 | 74 | |
| 43R222 | Liège (ISSeP) | 36 | 25 | 9 | 13 | 31 | 37 | 48 | 79 | 79 | 55 | 63 | 71 | 78 | 79 | |
| 43R240 | Engis | 36 | 20 | 6 | 9 | 21 | 29 | 35 | 71 | 74 | 45 | 55 | 57 | 63 | 68 | |
| 43R401 | Namur | 33 | 25 | 5 | 11 | 26 | 37 | 39 | 83 | 79 | 48 | 49 | 65 | 72 | 75 | |
| 45R502 | Lodelinsart | 25 | 14 | 0 | 6 | 8 | 24 | 29 | 66 | 68 | 34 | 41 | 47 | 57 | 62 | |
| Interpolated spatial average in : | ||||||||||||||||
| Brussels | 37 | 27 | 9 | 16 | 20 | 38 | 47 | 79 | 75 | 45 | 42 | 63 | 69 | 72 | ||
| Flanders | 46 | 41 | 15 | 18 | 29 | 47 | 51 | 84 | 79 | 58 | 46 | 68 | 76 | 77 | ||
| Wallonia | 37 | 31 | 23 | 21 | 23 | 34 | 41 | 69 | 77 | 54 | 51 | 63 | 72 | 73 | ||
| Belgium | 41 | 36 | 19 | 19 | 25 | 40 | 46 | 75 | 78 | 56 | 49 | 65 | 74 | 75 | ||
| % of the population exposed to O3 concentrations > 180 μg/m³ in: | ||||||||||||||||
| Brussels | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | ||
| Flanders | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | ||
| Wallonia | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | ||
| Belgium | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | ||
| % of the population exposed to O3 concentrations > 240 μg/m³ in: | ||||||||||||||||
| Brussels | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | ||
| Flanders | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | ||
| Wallonia | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | ||
| Belgium | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | ||
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