| Code | city | 28/10 | 29/10 | 30/10 | 31/10 | 01/11 | 02/11 | 03/11 | 04/11 | 05/11 | 06/11 | 07/11 | 08/11 | 09/11 | 10/11 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 41B011 | Sint-Agatha-Berchem | 51 | 34 | 17 | 58 | 34 | 32 | 30 | 7 | 9 | 22 | 23 | 22 | 21 | 34 | |
| 41MEU1 | Neder-Over-Heembeek | 43 | 23 | 16 | 52 | 27 | 29 | 32 | 8 | NA | 17 | 23 | 22 | NA | 34 | |
| 41N043 | Voorhaven (Haren) | 46 | 28 | 19 | 47 | 33 | 32 | 30 | 10 | 8 | 22 | 26 | 22 | 17 | 35 | |
| 41R001 | Sint-Jans-Molenbeek | 46 | 28 | 16 | 52 | 35 | 29 | 25 | 9 | 9 | 16 | 18 | 20 | 18 | 26 | |
| 41R012 | Ukkel | 50 | 34 | 23 | 54 | 29 | 35 | 30 | 15 | 9 | 21 | 17 | 18 | 19 | 28 | |
| 42N016 | Dessel | 53 | 40 | 21 | 36 | NA | NA | NA | NA | 10 | 27 | 19 | 31 | 23 | 21 | |
| 42N027 | Bree | NA | NA | 25 | 38 | 39 | 43 | 20 | 34 | 21 | 9 | 26 | 29 | 18 | 27 | |
| 42N035 | Aarschot | 59 | 43 | 25 | 61 | 36 | 37 | 35 | 10 | 7 | 21 | 26 | 23 | 22 | 24 | |
| 42N040 | Sint-Pieters-Leeuw | 54 | 38 | 33 | 64 | 38 | 42 | 37 | 24 | 14 | 25 | 20 | 23 | 24 | 51 | |
| 42N046 | Gellik | NA | NA | 32 | 55 | 41 | 42 | 35 | 39 | 27 | 7 | 19 | 24 | 22 | 23 | |
| 42N047 | Hasselt | 31 | 49 | 27 | 55 | 37 | 35 | 36 | 10 | 18 | 16 | 20 | 23 | 16 | 21 | |
| 42R801 | Borgerhout | 47 | 37 | 12 | 38 | 31 | 32 | 26 | 7 | 9 | 11 | 17 | 20 | 7 | 17 | |
| 42R811 | Schoten | NA | NA | 7 | 45 | 30 | 38 | 27 | 12 | 7 | 16 | 19 | 25 | 12 | 22 | |
| 42R842 | Mechelen (Hendrik Speecqvest) | 49 | 35 | 14 | 37 | 32 | 27 | 32 | 7 | 6 | 21 | 24 | 21 | 18 | 23 | |
| 44M705 | Roeselare (Haven) | 62 | 41 | NA | NA | NA | 37 | 28 | 14 | 14 | 6 | 26 | 15 | NA | NA | |
| 44N012 | Moerkerke | 63 | 38 | 39 | 47 | 35 | 37 | 33 | 9 | 12 | 5 | 16 | 18 | 12 | 44 | |
| 44N029 | Houtem (Veurne) | 68 | 49 | 52 | 49 | 46 | 46 | 32 | 29 | 19 | 41 | 31 | 28 | 23 | 59 | |
| 44R701 | Gent (Baudelopark) | 59 | 37 | 23 | 48 | 33 | 34 | 34 | 11 | 10 | 12 | 18 | 20 | 12 | 28 | |
| 44R710 | Destelbergen | 63 | 36 | 24 | 49 | 32 | 36 | 34 | 10 | 11 | 11 | 17 | 19 | 12 | 31 | |
| 43N060 | Havinnes | 48 | 33 | 24 | 50 | 27 | 36 | 28 | 14 | 11 | 20 | 15 | 22 | 14 | 18 | |
| 43N064 | Rixensart | 59 | 41 | 28 | 62 | 34 | 35 | 37 | 13 | 10 | 15 | 17 | 20 | 19 | 25 | |
| 43N066 | Eupen | 56 | 55 | 48 | 54 | 34 | 35 | 34 | 46 | 37 | 10 | 26 | 15 | 25 | 24 | |
| 43N070 | Mons | 38 | 28 | 25 | 45 | 28 | 25 | 32 | 22 | 12 | 14 | 18 | 21 | 10 | 16 | |
| 43N073 | Vezin | 55 | 56 | 30 | 56 | 39 | 33 | 36 | 30 | 19 | 4 | 13 | 21 | 21 | 23 | |
| 43N085 | Vielsalm | 52 | 58 | 57 | 52 | 37 | 38 | 46 | 60 | 21 | 32 | 32 | 33 | 25 | 23 | |
| 43N093 | Sinsin | 62 | 59 | 42 | 58 | 46 | 35 | 39 | 54 | 28 | 23 | 30 | 29 | 27 | 33 | |
| 43N100 | Dourbes | 57 | 57 | 40 | 45 | 42 | 36 | 37 | 25 | 20 | 18 | 34 | 34 | 24 | 42 | |
| 43N113 | Saint-Ode | 63 | 59 | 45 | 53 | 46 | 49 | 41 | 48 | 19 | 41 | 40 | 32 | 24 | 40 | |
| 43N121 | Offagne | 57 | 58 | 33 | 50 | 45 | 47 | 39 | 39 | 17 | 23 | 34 | 29 | 22 | 39 | |
| 43N132 | Habay-La-Neuve | 55 | 54 | 44 | 35 | 43 | 45 | 38 | 18 | 11 | 33 | 27 | 27 | 17 | 20 | |
| 43R221 | Herstal | 45 | 54 | 24 | 53 | 37 | 27 | 32 | 5 | 20 | 2 | 14 | 23 | 18 | 12 | |
| 43R222 | Liège (ISSeP) | 54 | NA | 13 | 64 | 45 | 36 | 38 | 15 | 28 | 9 | 23 | 34 | 30 | 19 | |
| 43R240 | Engis | 49 | 57 | 24 | 56 | 37 | 31 | 35 | 8 | 20 | 3 | 18 | 28 | 24 | 22 | |
| 43R401 | Namur | 56 | 57 | 24 | 51 | 41 | 23 | 36 | 14 | 9 | 5 | 15 | 23 | 21 | 29 | |
| 45R502 | Lodelinsart | 40 | 42 | 22 | 48 | 29 | 25 | 29 | 18 | 4 | 7 | 11 | 18 | 14 | 10 | |
| Interpolated spatial average in : | ||||||||||||||||
| Brussels | 49 | 33 | 20 | 53 | 34 | 31 | 29 | 13 | 10 | 17 | 19 | 20 | 19 | 27 | ||
| Flanders | 60 | 41 | 31 | 51 | 37 | 40 | 30 | 20 | 20 | 16 | 21 | 25 | 20 | 27 | ||
| Wallonia | 55 | 52 | 37 | 52 | 40 | 35 | 36 | 31 | 19 | 19 | 26 | 26 | 22 | 22 | ||
| Belgium | 57 | 47 | 34 | 51 | 39 | 37 | 34 | 26 | 19 | 17 | 24 | 25 | 21 | 25 | ||
| % 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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