| Code | city | 21/11 | 22/11 | 23/11 | 24/11 | 25/11 | 26/11 | 27/11 | 28/11 | 29/11 | 30/11 | 01/12 | 02/12 | 03/12 | 04/12 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 41B011 | Sint-Agatha-Berchem | 50 | 63 | 59 | 66 | 70 | 63 | 66 | 62 | 44 | 38 | 39 | 61 | 54 | 27 | |
| 41MEU1 | Neder-Over-Heembeek | 35 | 56 | 54 | 62 | 64 | 46 | 58 | 55 | 37 | 23 | 33 | 56 | 54 | 25 | |
| 41N043 | Voorhaven (Haren) | 45 | 62 | 56 | 62 | 65 | 49 | 63 | 60 | 35 | 25 | 29 | 53 | 54 | 28 | |
| 41R001 | Sint-Jans-Molenbeek | 39 | 51 | 57 | 64 | 67 | 44 | 56 | 53 | 30 | 25 | 34 | 50 | 47 | 30 | |
| 41R012 | Ukkel | 43 | 61 | 60 | 65 | 67 | 53 | 67 | 56 | 40 | 36 | 39 | 54 | 51 | 32 | |
| 42N016 | Dessel | 61 | 66 | 61 | 64 | 67 | 49 | 66 | 63 | 41 | 32 | 38 | 55 | 63 | 26 | |
| 42N027 | Bree | 63 | 66 | 63 | 68 | 72 | 61 | 68 | 67 | 33 | 38 | 39 | 59 | 60 | 34 | |
| 42N035 | Aarschot | 63 | 63 | 63 | 68 | 72 | 58 | 66 | 62 | 39 | 36 | 38 | 61 | 56 | 36 | |
| 42N040 | Sint-Pieters-Leeuw | 51 | 62 | 64 | 63 | 73 | 68 | 68 | 61 | 46 | 40 | 38 | 64 | 59 | 37 | |
| 42N046 | Gellik | 63 | 63 | 63 | 68 | 72 | 61 | 69 | 67 | 44 | 32 | 38 | 63 | 58 | NA | |
| 42N047 | Hasselt | 63 | 63 | 62 | 67 | 68 | 57 | 45 | 54 | 1 | NA | 39 | 61 | 59 | 35 | |
| 42R801 | Borgerhout | 53 | 59 | 54 | 64 | 67 | 43 | 66 | 63 | 21 | 28 | 29 | 51 | 57 | 43 | |
| 42R811 | Schoten | 52 | 59 | 57 | 65 | 68 | 39 | NA | 71 | 30 | 32 | 29 | 59 | 62 | 37 | |
| 42R842 | Mechelen (Hendrik Speecqvest) | 57 | 54 | 59 | 65 | 68 | 55 | 60 | 64 | 31 | 27 | 30 | 52 | 54 | 33 | |
| 44M705 | Roeselare (Haven) | 55 | 63 | 57 | 65 | 65 | 66 | 68 | 60 | 35 | 31 | 28 | 69 | 67 | 35 | |
| 44N012 | Moerkerke | 66 | 67 | 59 | 68 | 72 | 67 | 72 | 66 | 50 | 29 | 29 | 66 | 70 | 44 | |
| 44N029 | Houtem (Veurne) | 68 | 63 | 59 | 64 | 72 | 74 | 76 | 74 | 49 | 35 | 34 | 72 | 73 | 56 | |
| 44R701 | Gent (Baudelopark) | 52 | 63 | 59 | 68 | 69 | 55 | NA | 2 | 43 | 26 | 28 | 59 | 62 | 28 | |
| 44R710 | Destelbergen | 52 | 65 | 64 | 69 | 70 | 61 | 68 | 62 | 48 | 28 | 33 | 64 | 62 | 33 | |
| 43N060 | Havinnes | 36 | 53 | 54 | 60 | 62 | 59 | 58 | 54 | 50 | 27 | 26 | 56 | 57 | 22 | |
| 43N064 | Rixensart | 42 | 57 | 63 | 67 | 70 | 57 | 65 | 57 | 48 | 36 | 38 | 59 | 53 | 32 | |
| 43N066 | Eupen | 57 | 56 | 60 | 66 | 67 | 59 | 63 | 62 | 52 | 56 | 65 | 57 | 56 | 44 | |
| 43N070 | Mons | 35 | 40 | 50 | 59 | 60 | 47 | 45 | 43 | 40 | 26 | 26 | 49 | 53 | 19 | |
| 43N073 | Vezin | 53 | 54 | 66 | 68 | 68 | 59 | 61 | 57 | 48 | 42 | 44 | 60 | 49 | 41 | |
| 43N085 | Vielsalm | 57 | 59 | 60 | 68 | 72 | 49 | 61 | 60 | 47 | 38 | 29 | 52 | 55 | 49 | |
| 43N093 | Sinsin | 48 | 61 | 66 | 70 | 71 | 62 | 65 | 60 | 57 | 44 | 40 | 63 | 59 | 55 | |
| 43N100 | Dourbes | 43 | 47 | 66 | 67 | 64 | 58 | 60 | 61 | 47 | 51 | 40 | 60 | 62 | 33 | |
| 43N113 | Saint-Ode | 53 | 62 | 59 | 66 | 70 | 60 | 66 | 64 | 57 | 43 | 27 | 61 | 62 | 58 | |
| 43N121 | Offagne | 49 | 55 | 58 | 65 | 71 | 59 | 61 | 63 | 54 | 33 | 24 | 59 | 58 | 46 | |
| 43N132 | Habay-La-Neuve | 47 | 54 | 55 | 64 | 67 | 57 | 63 | 68 | 37 | 27 | 16 | 54 | 57 | 41 | |
| 43R221 | Herstal | 57 | 51 | 60 | 66 | 66 | 54 | 61 | 59 | 34 | 35 | 34 | 54 | 50 | 37 | |
| 43R222 | Liège (ISSeP) | 55 | 42 | 67 | 71 | 71 | 64 | 71 | 64 | 53 | 42 | 45 | 56 | 56 | 45 | |
| 43R240 | Engis | 52 | 45 | 59 | 65 | 66 | 52 | 57 | 57 | 45 | 40 | 33 | 48 | 45 | 46 | |
| 43R401 | Namur | 41 | 56 | 59 | 67 | 68 | 56 | 62 | 59 | 37 | 33 | 37 | 62 | 50 | 27 | |
| 45R502 | Lodelinsart | 29 | 41 | 54 | 61 | 62 | 46 | 47 | 43 | 31 | 28 | 30 | 38 | 43 | 19 | |
| Interpolated spatial average in : | ||||||||||||||||
| Brussels | 45 | 58 | 58 | 65 | 68 | 52 | 63 | 58 | 38 | 32 | 35 | 55 | 51 | 29 | ||
| Flanders | 57 | 63 | 62 | 68 | 71 | 61 | 70 | 65 | 44 | 34 | 35 | 63 | 63 | 36 | ||
| Wallonia | 48 | 54 | 59 | 67 | 70 | 58 | 62 | 59 | 46 | 38 | 33 | 56 | 57 | 38 | ||
| Belgium | 52 | 58 | 60 | 67 | 71 | 59 | 65 | 62 | 45 | 36 | 34 | 59 | 60 | 37 | ||
| % 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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