| Code | city | 20/10 | 21/10 | 22/10 | 23/10 | 24/10 | 25/10 | 26/10 | 27/10 | 28/10 | 29/10 | 30/10 | 31/10 | 01/11 | 02/11 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 41B011 | Sint-Agatha-Berchem | 67 | 66 | 54 | 67 | 46 | 48 | 64 | 58 | 51 | 34 | 17 | 58 | 34 | 32 | |
| 41MEU1 | Neder-Over-Heembeek | 63 | 60 | 54 | 63 | 46 | 45 | 58 | 56 | 43 | 23 | 16 | 52 | 27 | 29 | |
| 41N043 | Voorhaven (Haren) | 67 | 65 | 59 | 56 | 40 | 37 | 47 | 49 | 46 | 28 | 19 | 47 | 33 | 32 | |
| 41R001 | Sint-Jans-Molenbeek | 61 | 63 | 51 | 55 | 35 | 37 | 56 | 50 | 46 | 28 | 16 | 52 | 35 | 29 | |
| 41R012 | Ukkel | 63 | 62 | 53 | 61 | 37 | 39 | 51 | 45 | 50 | 34 | 23 | 54 | 29 | 35 | |
| 42N016 | Dessel | 67 | 67 | 63 | 68 | 50 | 48 | 61 | 60 | 53 | 40 | 21 | 36 | NA | NA | |
| 42N027 | Bree | 67 | 64 | NA | NA | NA | NA | NA | NA | NA | NA | 25 | 38 | 39 | 43 | |
| 42N035 | Aarschot | 67 | 69 | 58 | 75 | 49 | 48 | 65 | 59 | 59 | 43 | 25 | 61 | 36 | 37 | |
| 42N040 | Sint-Pieters-Leeuw | 67 | 66 | 58 | 76 | 42 | 50 | 67 | 57 | 54 | 38 | 33 | 64 | 38 | 42 | |
| 42N046 | Gellik | 70 | 68 | NA | NA | NA | NA | NA | NA | NA | NA | 32 | 55 | 41 | 42 | |
| 42N047 | Hasselt | 68 | 68 | NA | NA | NA | NA | NA | NA | 31 | 49 | 27 | 55 | 37 | 35 | |
| 42R801 | Borgerhout | 64 | NA | 47 | 57 | 35 | 30 | 33 | 61 | 47 | 37 | 12 | 38 | 31 | 32 | |
| 42R811 | Schoten | NA | NA | NA | 68 | NA | NA | NA | NA | NA | NA | 7 | 45 | 30 | 38 | |
| 42R842 | Mechelen (Hendrik Speecqvest) | NA | 63 | 56 | 64 | 42 | 42 | 53 | 51 | 49 | 35 | 14 | 37 | 32 | 27 | |
| 44M705 | Roeselare (Haven) | 75 | 68 | 61 | 66 | 37 | 41 | 50 | 70 | 62 | 41 | NA | NA | NA | 37 | |
| 44N012 | Moerkerke | NA | NA | NA | 74 | 49 | 53 | 49 | 68 | 63 | 38 | 39 | 47 | 35 | 37 | |
| 44N029 | Houtem (Veurne) | NA | NA | 60 | 71 | 45 | 51 | 57 | 65 | 68 | 49 | 52 | 49 | 46 | 46 | |
| 44R701 | Gent (Baudelopark) | 72 | 68 | 52 | 74 | 45 | 54 | 59 | 67 | 59 | 37 | 23 | 48 | 33 | 34 | |
| 44R710 | Destelbergen | 71 | 69 | 53 | 73 | 45 | 54 | 55 | 69 | 63 | 36 | 24 | 49 | 32 | 36 | |
| 43N060 | Havinnes | 60 | 57 | 56 | 62 | 40 | 49 | 56 | 63 | 48 | 33 | 24 | 50 | 27 | 36 | |
| 43N064 | Rixensart | 66 | 63 | 61 | 74 | 49 | 49 | 58 | 57 | 59 | 41 | 28 | 62 | 34 | 35 | |
| 43N066 | Eupen | 65 | 56 | 62 | 65 | 42 | 57 | 73 | 32 | 56 | 55 | 48 | 54 | 34 | 35 | |
| 43N070 | Mons | 50 | 51 | 42 | 59 | 34 | 41 | 49 | 43 | 38 | 28 | 25 | 45 | 28 | 25 | |
| 43N073 | Vezin | 64 | 54 | 56 | 73 | 43 | 53 | 67 | 37 | 55 | 56 | 30 | 56 | 39 | 33 | |
| 43N085 | Vielsalm | 60 | 57 | 61 | 64 | 39 | 49 | 68 | 22 | 52 | 58 | 57 | 52 | 37 | 38 | |
| 43N093 | Sinsin | 70 | 56 | 69 | 68 | 47 | 64 | 72 | 26 | 62 | 59 | 42 | 58 | 46 | 35 | |
| 43N100 | Dourbes | 65 | 53 | 66 | 64 | 50 | 62 | 75 | 30 | 57 | 57 | 40 | 45 | 42 | 36 | |
| 43N113 | Saint-Ode | 67 | 63 | 70 | 67 | 44 | 52 | 72 | 50 | 63 | 59 | 45 | 53 | 46 | 49 | |
| 43N121 | Offagne | 63 | 58 | 64 | 65 | 43 | 60 | 65 | 48 | 57 | 58 | 33 | 50 | 45 | 47 | |
| 43N132 | Habay-La-Neuve | 61 | 63 | 72 | 61 | 34 | 60 | 47 | 40 | 55 | 54 | 44 | 35 | 43 | 45 | |
| 43R221 | Herstal | 65 | 50 | 58 | 60 | 34 | 42 | 64 | 33 | 45 | 54 | 24 | 53 | 37 | 27 | |
| 43R222 | Liège (ISSeP) | 71 | NA | NA | NA | NA | NA | NA | NA | 54 | NA | 13 | 64 | 45 | 36 | |
| 43R240 | Engis | 65 | 48 | 51 | 53 | 38 | 46 | 66 | 32 | 49 | 57 | 24 | 56 | 37 | 31 | |
| 43R401 | Namur | 63 | 56 | 62 | 63 | 46 | 44 | 52 | 40 | 56 | 57 | 24 | 51 | 41 | 23 | |
| 45R502 | Lodelinsart | 58 | 52 | 47 | 60 | 39 | 50 | 65 | 30 | 40 | 42 | 22 | 48 | 29 | 25 | |
| Interpolated spatial average in : | ||||||||||||||||
| Brussels | 63 | 63 | 54 | 61 | 40 | 42 | 55 | 49 | 49 | 33 | 20 | 53 | 34 | 31 | ||
| Flanders | 71 | 67 | 58 | 71 | 47 | 51 | 56 | 60 | 60 | 41 | 31 | 51 | 37 | 40 | ||
| Wallonia | 64 | 55 | 60 | 66 | 41 | 55 | 64 | 35 | 55 | 52 | 37 | 52 | 40 | 35 | ||
| Belgium | 67 | 61 | 59 | 68 | 44 | 53 | 60 | 46 | 57 | 47 | 34 | 51 | 39 | 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% | ||
Color legend:
These data are not validated : they should not be used for any study whatsoever
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