| Code | city | 03/11 | 04/11 | 05/11 | 06/11 | 07/11 | 08/11 | 09/11 | 10/11 | 11/11 | 12/11 | 13/11 | 14/11 | 15/11 | 16/11 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 41B011 | Sint-Agatha-Berchem | 30 | 7 | 9 | 22 | 23 | 22 | 21 | 34 | 68 | 50 | 24 | 40 | 41 | 53 | |
| 41MEU1 | Neder-Over-Heembeek | 32 | 8 | NA | 17 | 23 | 22 | NA | 34 | 66 | 44 | 24 | 38 | 43 | 47 | |
| 41N043 | Voorhaven (Haren) | 30 | 10 | 8 | 22 | 26 | 22 | 17 | 35 | 70 | 50 | 25 | 43 | 38 | 51 | |
| 41R001 | Sint-Jans-Molenbeek | 25 | 9 | 9 | 16 | 18 | 20 | 18 | 26 | 57 | 45 | 21 | 24 | 36 | 48 | |
| 41R012 | Ukkel | 30 | 15 | 9 | 21 | 17 | 18 | 19 | 28 | 69 | 47 | 24 | 38 | 36 | 49 | |
| 42N016 | Dessel | NA | NA | 10 | 27 | 19 | 31 | 23 | 21 | 68 | 58 | 21 | 78 | 49 | 49 | |
| 42N027 | Bree | 20 | 34 | 21 | 9 | 26 | 29 | 18 | 27 | 67 | 53 | 30 | 76 | 67 | 58 | |
| 42N035 | Aarschot | 35 | 10 | 7 | 21 | 26 | 23 | 22 | 24 | 64 | 52 | 26 | 73 | 65 | 56 | |
| 42N040 | Sint-Pieters-Leeuw | 37 | 24 | 14 | 25 | 20 | 23 | 24 | 51 | 64 | 54 | 30 | 47 | 46 | 55 | |
| 42N046 | Gellik | 35 | 39 | 27 | 7 | 19 | 24 | 22 | 23 | 70 | 51 | 28 | 64 | 69 | 61 | |
| 42N047 | Hasselt | 36 | 10 | 18 | 16 | 20 | 23 | 16 | 21 | 59 | 48 | 27 | 59 | 71 | 57 | |
| 42R801 | Borgerhout | 26 | 7 | 9 | 11 | 17 | 20 | 7 | 17 | 67 | 47 | 21 | 62 | 48 | 50 | |
| 42R811 | Schoten | 27 | 12 | 7 | 16 | 19 | 25 | 12 | 22 | 70 | 44 | 23 | 61 | 43 | 51 | |
| 42R842 | Mechelen (Hendrik Speecqvest) | 32 | 7 | 6 | 21 | 24 | 21 | 18 | 23 | 64 | 49 | 16 | 35 | 36 | 49 | |
| 44M705 | Roeselare (Haven) | 28 | 14 | 14 | 6 | 26 | 15 | NA | NA | NA | NA | NA | 61 | 55 | 54 | |
| 44N012 | Moerkerke | 33 | 9 | 12 | 5 | 16 | 18 | 12 | 44 | 70 | 67 | 41 | 83 | 61 | 51 | |
| 44N029 | Houtem (Veurne) | 32 | 29 | 19 | 41 | 31 | 28 | 23 | 59 | 75 | 72 | 59 | 77 | 64 | 50 | |
| 44R701 | Gent (Baudelopark) | 34 | 11 | 10 | 12 | 18 | 20 | 12 | 28 | 70 | 59 | 29 | 74 | 44 | 49 | |
| 44R710 | Destelbergen | 34 | 10 | 11 | 11 | 17 | 19 | 12 | 31 | 71 | 56 | 24 | 74 | 45 | 51 | |
| 43N060 | Havinnes | 28 | 14 | 11 | 20 | 15 | 22 | 14 | 18 | 56 | 52 | 28 | 60 | 50 | 46 | |
| 43N064 | Rixensart | 37 | 13 | 10 | 15 | 17 | 20 | 19 | 25 | 65 | 49 | 33 | 47 | 55 | 54 | |
| 43N066 | Eupen | 34 | 46 | 37 | 10 | 26 | 15 | 25 | 24 | 57 | 43 | 40 | 55 | 65 | 54 | |
| 43N070 | Mons | 32 | 22 | 12 | 14 | 18 | 21 | 10 | 16 | 54 | 50 | 37 | 35 | 39 | 50 | |
| 43N073 | Vezin | 36 | 30 | 19 | 4 | 13 | 21 | 21 | 23 | 54 | 46 | 35 | 48 | 66 | 53 | |
| 43N085 | Vielsalm | 46 | 60 | 21 | 32 | 32 | 33 | 25 | 23 | 51 | 50 | 42 | 51 | 49 | 56 | |
| 43N093 | Sinsin | 39 | 54 | 28 | 23 | 30 | 29 | 27 | 33 | 61 | 52 | 37 | 55 | 66 | 61 | |
| 43N100 | Dourbes | 37 | 25 | 20 | 18 | 34 | 34 | 24 | 42 | 56 | 53 | 45 | 50 | 59 | 59 | |
| 43N113 | Saint-Ode | 41 | 48 | 19 | 41 | 40 | 32 | 24 | 40 | 61 | 53 | 47 | 65 | 64 | 59 | |
| 43N121 | Offagne | 39 | 39 | 17 | 23 | 34 | 29 | 22 | 39 | 59 | 52 | 49 | 57 | 63 | 59 | |
| 43N132 | Habay-La-Neuve | 38 | 18 | 11 | 33 | 27 | 27 | 17 | 20 | 54 | 52 | 49 | 60 | 65 | 55 | |
| 43R221 | Herstal | 32 | 5 | 20 | 2 | 14 | 23 | 18 | 12 | 50 | 41 | 22 | 44 | 52 | 49 | |
| 43R222 | Liège (ISSeP) | 38 | 15 | 28 | 9 | 23 | 34 | 30 | 19 | 55 | 51 | 27 | 46 | 60 | 59 | |
| 43R240 | Engis | 35 | 8 | 20 | 3 | 18 | 28 | 24 | 22 | 49 | 39 | 29 | 42 | 40 | 49 | |
| 43R401 | Namur | 36 | 14 | 9 | 5 | 15 | 23 | 21 | 29 | 56 | 49 | 36 | 39 | 61 | 56 | |
| 45R502 | Lodelinsart | 29 | 18 | 4 | 7 | 11 | 18 | 14 | 10 | 45 | 39 | 34 | 31 | 51 | 48 | |
| Interpolated spatial average in : | ||||||||||||||||
| Brussels | 29 | 13 | 10 | 17 | 19 | 20 | 19 | 27 | 65 | 49 | 25 | 38 | 40 | 51 | ||
| Flanders | 30 | 20 | 20 | 16 | 21 | 25 | 20 | 27 | 70 | 55 | 30 | 66 | 51 | 53 | ||
| Wallonia | 36 | 31 | 19 | 19 | 26 | 26 | 22 | 22 | 56 | 50 | 40 | 46 | 55 | 55 | ||
| Belgium | 34 | 26 | 19 | 17 | 24 | 25 | 21 | 25 | 62 | 52 | 35 | 55 | 53 | 54 | ||
| % 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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