| Code | city | 11/02 | 12/02 | 13/02 | 14/02 | 15/02 | 16/02 | 17/02 | 18/02 | 19/02 | 20/02 | 21/02 | 22/02 | 23/02 | 24/02 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 41B011 | Sint-Agatha-Berchem | 67 | 48 | NA | NA | 54 | 56 | 71 | 70 | 55 | 54 | 59 | 87 | 85 | 74 | |
| 41MEU1 | Neder-Over-Heembeek | 64 | 41 | NA | NA | 57 | 51 | 66 | 67 | 47 | 46 | 55 | 81 | 75 | 71 | |
| 41N043 | Voorhaven (Haren) | 66 | 42 | NA | NA | 48 | 56 | 70 | 74 | 56 | 55 | 63 | 92 | 87 | 76 | |
| 41R001 | Sint-Jans-Molenbeek | 57 | 55 | 64 | 57 | 49 | 45 | 60 | 70 | 37 | NA | NA | 80 | 80 | 70 | |
| 41R012 | Ukkel | 58 | 71 | 72 | 61 | 60 | 55 | 67 | 74 | 41 | NA | NA | 86 | 83 | 73 | |
| 42N016 | Dessel | 63 | 71 | 74 | 60 | 64 | 53 | 69 | 73 | 63 | 58 | 67 | 86 | 85 | 75 | |
| 42N027 | Bree | 71 | 70 | 70 | 65 | 64 | 52 | 60 | 71 | 62 | 67 | 71 | 92 | 88 | 78 | |
| 42N035 | Aarschot | 68 | 72 | 77 | 65 | 63 | 53 | 72 | 74 | 55 | 63 | 68 | 91 | 88 | 79 | |
| 42N040 | Sint-Pieters-Leeuw | 69 | 74 | 71 | 60 | 62 | 60 | 75 | 72 | 62 | 53 | 63 | 89 | 86 | 76 | |
| 42N046 | Gellik | 75 | 73 | 75 | 67 | 62 | 56 | 68 | 70 | 56 | 67 | 70 | 96 | 88 | 84 | |
| 42N047 | Hasselt | 74 | 69 | 74 | 65 | 62 | 56 | 64 | 71 | 55 | 62 | 69 | 92 | 89 | 62 | |
| 42R801 | Borgerhout | 69 | 68 | 66 | 58 | 40 | 51 | 59 | 67 | 54 | 48 | 55 | 80 | 81 | 70 | |
| 42R842 | Mechelen (Hendrik Speecqvest) | 67 | 56 | 67 | 61 | 56 | 49 | 64 | 70 | 45 | 53 | 59 | 85 | 88 | 74 | |
| 44M705 | Roeselare (Haven) | 72 | 72 | 69 | 63 | 50 | 65 | 81 | 71 | 58 | 78 | 67 | 85 | 86 | 79 | |
| 44N012 | Moerkerke | 64 | 80 | 76 | 67 | 54 | 60 | 78 | 70 | 61 | 75 | 69 | 87 | 82 | 76 | |
| 44N029 | Houtem (Veurne) | 67 | 71 | 75 | 61 | NA | NA | NA | NA | 62 | 76 | 68 | 84 | 81 | 81 | |
| 44R701 | Gent (Baudelopark) | 69 | 74 | 72 | 61 | 53 | 58 | 74 | 72 | 35 | 64 | 63 | 86 | 87 | 75 | |
| 44R710 | Destelbergen | 65 | 76 | 73 | 58 | 56 | 57 | 76 | 71 | 55 | 64 | 59 | 85 | 82 | 75 | |
| 43N060 | Havinnes | 62 | 74 | 61 | 54 | 52 | 67 | 80 | 65 | 63 | 56 | 50 | 71 | 73 | 69 | |
| 43N064 | Rixensart | 65 | 73 | 70 | 61 | 64 | 57 | 72 | 71 | 61 | 57 | 64 | 90 | 85 | 77 | |
| 43N066 | Eupen | 67 | 60 | 76 | 64 | 65 | 59 | 67 | 63 | 55 | 65 | 68 | 89 | 81 | 75 | |
| 43N070 | Mons | 62 | 54 | 64 | 57 | 53 | 52 | 70 | 68 | 51 | 48 | 56 | 87 | 82 | 72 | |
| 43N073 | Vezin | 72 | 67 | 70 | 65 | 65 | 58 | 72 | 71 | 59 | 66 | 69 | 90 | 86 | 78 | |
| 43N085 | Vielsalm | 62 | 64 | 66 | 61 | 52 | 49 | 68 | 60 | 66 | 63 | 65 | 81 | 74 | 76 | |
| 43N093 | Sinsin | 72 | 75 | 68 | 64 | 60 | 66 | 76 | 67 | 66 | 66 | 68 | 91 | 88 | 78 | |
| 43N100 | Dourbes | 72 | 79 | 70 | 66 | 68 | 66 | 80 | 70 | 70 | 65 | 72 | 92 | 89 | 79 | |
| 43N113 | Saint-Ode | 80 | 83 | 72 | 67 | 60 | 72 | 81 | 69 | 74 | 70 | 72 | 95 | 88 | 80 | |
| 43N121 | Offagne | 76 | 72 | 68 | 63 | 62 | 62 | 77 | 61 | 65 | 63 | 71 | 87 | 82 | 78 | |
| 43N132 | Habay-La-Neuve | 76 | 70 | 69 | 61 | 52 | 69 | 77 | 63 | 67 | 65 | 70 | 86 | 85 | 77 | |
| 43R221 | Herstal | 62 | 58 | 65 | 62 | 56 | 52 | 62 | 67 | 57 | 59 | 65 | 88 | 85 | 75 | |
| 43R222 | Liège (ISSeP) | 67 | 55 | 69 | 67 | 57 | 60 | 69 | 69 | 56 | 65 | 67 | 87 | 86 | 79 | |
| 43R240 | Engis | 57 | 55 | 65 | 57 | 61 | 51 | 67 | 65 | 53 | 57 | 67 | 75 | 75 | 72 | |
| 43R401 | Namur | 78 | 65 | 66 | 64 | 59 | 54 | 75 | 68 | 53 | 65 | 67 | 91 | 87 | 76 | |
| 45R502 | Lodelinsart | 64 | 54 | 62 | 54 | 60 | 49 | 65 | 64 | 50 | 42 | 55 | 79 | 77 | 67 | |
| Interpolated spatial average in : | ||||||||||||||||
| Brussels | 62 | 63 | 67 | 60 | 55 | 51 | 65 | 72 | 57 | 54 | 62 | 86 | 84 | 73 | ||
| Flanders | 66 | 74 | 75 | 63 | 59 | 59 | 71 | 72 | 59 | 65 | 67 | 88 | 85 | 77 | ||
| Wallonia | 68 | 68 | 69 | 63 | 60 | 58 | 73 | 67 | 63 | 62 | 67 | 87 | 84 | 76 | ||
| Belgium | 67 | 71 | 72 | 63 | 60 | 58 | 72 | 69 | 61 | 63 | 67 | 88 | 85 | 77 | ||
| % 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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