| Code | city | 30/10 | 31/10 | 01/11 | 02/11 | 03/11 | 04/11 | 05/11 | 06/11 | 07/11 | 08/11 | 09/11 | 10/11 | 11/11 | 12/11 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 41B001 | Brussel (Kunst-Wet) | 27 | 29 | 16 | 13 | 28 | 18 | 19 | 31 | 35 | 26 | NA | NA | 38 | 29 | |
| 41B004 | Brussel (Sint-Katelijne) | 20 | 17 | 10 | 6 | 12 | 12 | 10 | 19 | 22 | 18 | 18 | 22 | 33 | 24 | |
| 41B006 | Brussel (EU Parlement) | 16 | 15 | 8 | 6 | 10 | 9 | 9 | 14 | 15 | 13 | 15 | 17 | 28 | 17 | |
| 41B008 | Brussel (Belliardstraat) | 22 | 19 | 11 | 8 | 14 | 13 | 10 | 21 | 22 | 22 | 24 | 24 | 29 | 25 | |
| 41B011 | Sint-Agatha-Berchem | 13 | 7 | 4 | 2 | 5 | 5 | 3 | 6 | 7 | 7 | 7 | 10 | 13 | 14 | |
| 41BUL1 | Brussel (Zuidlaan) | 26 | 22 | 13 | 9 | 21 | 19 | 16 | 28 | 29 | 24 | 29 | 30 | 39 | 32 | |
| 41CHA1 | Ganshoren (Keizer-Karel) | 31 | 12 | 8 | 5 | 8 | 11 | 8 | 10 | 12 | 10 | 12 | 14 | 23 | 22 | |
| 41MEU1 | Neder-Over-Heembeek | 18 | 17 | 9 | NA | 14 | NA | NA | NA | NA | 13 | 15 | 19 | 22 | 19 | |
| 41N043 | Voorhaven (Haren) | 23 | 21 | 11 | 9 | 15 | 15 | 10 | 23 | 21 | 21 | 24 | 23 | 30 | 25 | |
| 41R001 | Sint-Jans-Molenbeek | 21 | 16 | 7 | 6 | 11 | 10 | 9 | 16 | 16 | 13 | 16 | 20 | 30 | 20 | |
| 41R002 | Elsene | 28 | 21 | 13 | 11 | 13 | 15 | 13 | 20 | 19 | 16 | 20 | 25 | 38 | 30 | |
| 41R012 | Ukkel | 8 | 8 | 3 | 1 | 4 | 3 | 4 | 6 | 8 | 5 | 7 | 8 | 15 | 9 | |
| 41REG1 | Brussel (Regentlaan) | 26 | 33 | 15 | 16 | 30 | 18 | 24 | 32 | 36 | 24 | 34 | 36 | 44 | 26 | |
| 41VBX1 | Brussel (Groot Eiland) | 27 | 17 | 9 | 7 | 12 | 11 | 10 | 18 | 17 | 14 | 17 | 21 | 32 | 24 | |
| 41VBX2 | Brussel (Huidevetterstraat) | 22 | 20 | 10 | 7 | 13 | 13 | 12 | 20 | 23 | 16 | 21 | 23 | 35 | 24 | |
| 41VBX3 | Brussel (Lakensestraat) | 29 | 19 | 13 | 9 | 13 | 16 | 12 | 20 | 20 | 17 | 21 | 24 | 34 | 30 | |
| 47E013 | Vorst | 11 | 10 | 4 | 3 | 7 | 5 | 5 | 10 | 11 | 6 | 10 | 12 | 18 | 12 | |
| 40AL01 | Antwerpen-Linkeroever | 19 | 11 | 6 | 4 | NA | 7 | 6 | NA | NA | 10 | 11 | 14 | 13 | 20 | |
| 40AT44 | Antwerpen (Ordamstraat) | 35 | 34 | 22 | 18 | 26 | 21 | 26 | 27 | 29 | 30 | 35 | 35 | 34 | 35 | |
| 40AT83 | Berendrecht | 30 | 34 | 29 | 15 | 26 | 27 | 22 | 25 | 28 | 30 | 33 | 32 | 25 | 33 | |
| 40LD02 | Geel | 11 | 10 | 4 | 4 | 8 | 6 | 6 | 10 | 13 | 9 | 10 | 13 | 12 | 13 | |
| 40R822 | Antwerpen (haven) | 29 | 19 | 13 | 11 | 15 | 15 | 11 | 19 | 17 | 18 | 17 | 27 | 20 | 29 | |
| 40R891 | Antwerpen (haven) | 27 | 24 | 8 | 9 | 20 | 13 | 18 | 21 | 21 | 14 | 23 | 31 | 32 | 24 | |
| 40R892 | Kallo (sluis Kallo) | 20 | 14 | 3 | 2 | 7 | 5 | 8 | 11 | 12 | 8 | 15 | 17 | 20 | 18 | |
| 40R897 | Antwerpen (haven) | 23 | 16 | 8 | 6 | 12 | 8 | 8 | 13 | 15 | 11 | 15 | 20 | 19 | 18 | |
| 40SA08 | Stabroek | 20 | 24 | 16 | 8 | 17 | 13 | 16 | 20 | 22 | 21 | 22 | 24 | 32 | 26 | |
| 40SZ01 | Steenokkerzeel | 12 | 19 | 9 | 11 | 16 | 9 | 12 | 18 | 20 | 14 | 18 | 17 | 30 | 13 | |
| 40SZ05 | Steenokkerzeel | 9 | 12 | 4 | 3 | 8 | 5 | 11 | 10 | 14 | 8 | 13 | 11 | 31 | 9 | |
| 42DU07 | Antwerpen (Deurne) | 29 | 26 | 15 | 9 | 19 | 17 | 15 | 21 | 25 | 23 | 25 | 34 | 28 | 25 | |
| 42M802 | Antwerpen (Luchtbal) | 24 | 19 | 9 | 6 | 13 | 12 | 13 | 14 | 16 | 14 | 17 | 27 | 24 | 29 | |
| 42MK02 | Antwerpen (Merksem) | 28 | 25 | 14 | 8 | 18 | 15 | 14 | 19 | 22 | 22 | 23 | 35 | 28 | 29 | |
| 42N016 | Dessel | 10 | 9 | 4 | 3 | 5 | 5 | 5 | 6 | 8 | 6 | 7 | 8 | 14 | 11 | |
| 42N027 | Bree | 11 | 5 | 3 | 3 | 4 | 4 | 3 | 5 | 6 | 5 | 5 | 7 | 10 | 9 | |
| 42N035 | Aarschot | 8 | 8 | 4 | 2 | 5 | 4 | 5 | 6 | 8 | 6 | 7 | 9 | 14 | 9 | |
| 42N040 | Sint-Pieters-Leeuw | 8 | 6 | 3 | 2 | 4 | 3 | 3 | 5 | 6 | 4 | 5 | 5 | 9 | 8 | |
| 42N046 | Gellik | 11 | 4 | 2 | 2 | 4 | 3 | 3 | 4 | 5 | 4 | 4 | 6 | 8 | 10 | |
| 42N047 | Hasselt | 12 | 8 | 4 | 3 | 8 | 4 | 6 | 9 | 10 | 7 | 8 | 10 | 16 | 13 | |
| 42N054 | Walshoutem | 6 | 6 | 2 | 2 | 4 | 3 | 4 | 5 | 6 | 5 | 5 | 6 | 11 | 6 | |
| 42R020 | Vilvoorde | 18 | 18 | 8 | 6 | 12 | 11 | 6 | 16 | 17 | 15 | 20 | 18 | 21 | 21 | |
| 42R801 | Borgerhout | 26 | 18 | 11 | 8 | 12 | 14 | 12 | 15 | 19 | 16 | 18 | 23 | 23 | 29 | |
| 42R802 | Borgerhout (straatkant) | 31 | 23 | 12 | 10 | 15 | 18 | 16 | 19 | 24 | 18 | 22 | 27 | 29 | 32 | |
| 42R803 | Antwerpen (Park Spoor Noord) | 26 | 19 | 11 | 8 | 13 | 13 | 12 | 16 | 19 | 20 | 18 | 26 | 22 | 31 | |
| 42R804 | Borgerhout (Ring) | 25 | 29 | 14 | 12 | 22 | 17 | 18 | 27 | 32 | 22 | 30 | 40 | 34 | 27 | |
| 42R805 | Antwerpen (Belgiëlei) | 29 | 21 | 11 | 8 | 14 | 13 | 13 | 18 | 21 | 18 | 21 | 26 | 23 | 30 | |
| 42R811 | Schoten | 16 | 15 | 7 | 5 | 10 | 9 | 9 | 13 | 16 | 11 | 15 | 21 | 19 | 21 | |
| 42R817 | Antwerpen (Groenenborgerlaan) | 16 | 14 | 9 | 5 | 10 | 9 | 8 | 11 | 13 | 12 | 15 | 20 | 15 | 19 | |
| 42R820 | Kapellen | 12 | 19 | 6 | 4 | 10 | 7 | 12 | 14 | 18 | 12 | 16 | 14 | 27 | 17 | |
| 42R830 | Doel (Scheldemolenstraat) | 23 | 17 | 17 | 8 | 10 | 21 | 10 | 10 | 13 | 15 | 12 | 9 | 13 | 29 | |
| 42R831 | Berendrecht | 20 | 26 | 18 | 10 | 17 | 16 | 17 | 24 | 28 | 19 | 23 | 23 | 25 | 29 | |
| 42R842 | Mechelen (Hendrik Speecqvest) | 19 | 15 | 8 | 6 | 11 | 9 | 9 | 13 | 14 | 13 | 16 | 21 | 23 | 17 | |
| 44M705 | Roeselare (Haven) | 20 | 9 | 6 | 4 | 6 | 7 | 5 | 8 | 8 | 11 | NA | NA | 16 | 18 | |
| 44N012 | Moerkerke | 9 | 7 | 3 | 2 | 4 | 4 | 4 | 5 | 4 | 7 | 7 | 6 | 7 | 10 | |
| 44N029 | Houtem (Veurne) | 6 | 4 | 2 | 2 | 4 | 3 | 5 | 3 | 3 | 4 | 4 | 4 | 8 | 10 | |
| 44N051 | Idegem | 6 | 6 | 3 | 2 | 4 | 3 | 3 | 5 | 6 | 4 | 6 | 5 | 9 | 6 | |
| 44N052 | Zwevegem | 13 | 11 | 4 | 3 | 7 | 5 | 5 | 11 | 9 | 8 | 10 | 10 | 18 | 10 | |
| 44R701 | Gent (Baudelopark) | 16 | 14 | 7 | 4 | 9 | 9 | 8 | 12 | 13 | 11 | 13 | 15 | 18 | 16 | |
| 44R702 | Gent (Gustaaf Callierlaan) | 19 | 16 | 8 | 5 | 10 | 10 | 10 | 14 | 16 | 13 | 17 | 19 | 26 | 22 | |
| 44R710 | Destelbergen | 10 | 11 | 4 | 3 | 7 | 5 | 6 | 11 | 11 | 8 | 12 | 11 | 15 | 9 | |
| 44R721 | Wondelgem | 18 | 15 | 7 | 5 | 12 | 12 | 10 | 15 | 14 | 11 | 13 | 13 | 20 | 21 | |
| 44R731 | Evergem | 18 | 13 | 11 | 5 | 10 | 11 | 8 | 12 | 11 | 15 | 12 | 12 | 16 | 18 | |
| 44R740 | Sint-Kruiswinkel | NA | NA | 4 | 3 | 10 | 5 | 11 | 17 | 21 | 12 | 16 | 13 | 17 | 9 | |
| 44R750 | Zelzate | 24 | 22 | 24 | 15 | 25 | 17 | 12 | 16 | 14 | 35 | 21 | 22 | 16 | 16 | |
| 47E007 | Sint-Pieters-Leeuw | 9 | 7 | 3 | 2 | 5 | 4 | 3 | 6 | 7 | 5 | 6 | 7 | 11 | 10 | |
| 47E008 | Grimbergen | 16 | 11 | 7 | 4 | 7 | 8 | 6 | 10 | 11 | 11 | 12 | 12 | 20 | 19 | |
| 47E009 | Zemst | 11 | 12 | 6 | 4 | 8 | 8 | 5 | 11 | 13 | 11 | 12 | 13 | 15 | 16 | |
| 47E703 | Oost-Eeklo | 19 | 17 | 12 | 6 | 13 | 12 | 14 | 16 | 16 | 16 | 25 | 24 | 17 | 17 | |
| 47E704 | Wachtebeke | 11 | 12 | 5 | 3 | 8 | NA | NA | NA | NA | 7 | 11 | 9 | 22 | 10 | |
| 47E714 | Dudzele | 10 | 10 | 4 | 3 | NA | 5 | 5 | 7 | 10 | 9 | 11 | 9 | 10 | 11 | |
| 47E715 | Zuienkerke | 11 | 6 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 6 | 6 | 6 | 7 | 15 | |
| 47E716 | Mariakerke | 14 | 10 | 6 | 3 | 6 | 8 | 6 | 8 | 8 | 8 | 8 | 10 | 11 | 12 | |
| 47E814 | Ham (Genebosstraat) | 13 | 6 | 2 | 2 | 4 | 4 | 4 | 6 | 7 | 5 | 6 | 11 | 11 | 12 | |
| 43N060 | Havinnes | 9 | 8 | 6 | 3 | 7 | 6 | 5 | 7 | 5 | 11 | 7 | 9 | 12 | 8 | |
| 43N064 | Rixensart | 6 | 5 | 2 | 2 | 4 | 3 | 3 | 5 | 6 | 5 | 5 | 7 | 12 | 8 | |
| 43N066 | Eupen | NA | 2 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 5 | 2 | |
| 43N070 | Mons | 17 | 16 | 6 | 6 | 12 | 9 | 6 | 12 | 14 | 10 | 15 | 14 | 22 | 11 | |
| 43N073 | Vezin | 3 | 3 | 1 | 1 | 2 | 1 | 2 | 3 | 3 | 2 | 3 | 3 | 6 | 3 | |
| 43N085 | Vielsalm | 1 | 2 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 2 | 1 | |
| 43N093 | Sinsin | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 2 | 4 | 4 | |
| 43N100 | Dourbes | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 2 | 3 | 2 | |
| 43N113 | Saint-Ode | 3 | 2 | 2 | 1 | 2 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | |
| 43N121 | Offagne | 1 | 2 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | |
| 43N132 | Habay-La-Neuve | 3 | 2 | 1 | 1 | 2 | 2 | 1 | 1 | 2 | 2 | 2 | 2 | 4 | 4 | |
| 43R221 | Herstal | 18 | 11 | 4 | 3 | 6 | 5 | 6 | 10 | 12 | 7 | 11 | 9 | 21 | 13 | |
| 43R222 | Liège (ISSeP) | 7 | 7 | 1 | 2 | 4 | 1 | 2 | 8 | 11 | 4 | 8 | 7 | 12 | 11 | |
| 43R223 | Jemeppe-sur-Meuse | 11 | 16 | 4 | 3 | 8 | 4 | 8 | 14 | 18 | 9 | 14 | 11 | 18 | 13 | |
| 43R240 | Engis | 5 | 11 | 2 | 2 | 5 | 2 | 13 | 10 | 9 | 4 | 6 | 5 | 10 | 7 | |
| 43R401 | Namur | 16 | 6 | 5 | 3 | 4 | 6 | 3 | 7 | 7 | 7 | 7 | 9 | 13 | 14 | |
| 45R501 | Charleroi | 17 | 14 | 5 | 5 | 10 | 6 | 5 | 17 | 17 | 11 | 16 | 17 | 18 | 13 | |
| 45R502 | Lodelinsart | 11 | 9 | 4 | 3 | 6 | 5 | 6 | 10 | 11 | 6 | 9 | 12 | 19 | 10 | |
| 45R503 | Charleroi - Parc | 17 | 14 | 6 | 5 | 10 | 8 | 6 | 14 | 18 | 10 | 15 | 17 | 20 | 13 | |
| 45R512 | Marchienne-Au-Pont | 9 | 8 | 4 | 4 | 7 | 5 | 4 | 10 | 9 | 6 | 8 | 7 | 12 | 7 | |
| 48R215 | Hermalle | 9 | 9 | 3 | 2 | 5 | 3 | 3 | 8 | 9 | 5 | 8 | 8 | 14 | 10 | |
| 48R235 | Bierset | 9 | 13 | 5 | 5 | 10 | 5 | 5 | 14 | 15 | 9 | 11 | 11 | 12 | 11 | |
| 48R515 | Charleroi (Aeroport 1) | 10 | 6 | 4 | 2 | 4 | 4 | 3 | 6 | 10 | 8 | 6 | 9 | 10 | 9 | |
| 48R516 | Charleroi (Aeroport 2) | 9 | 8 | 2 | 2 | 5 | 2 | 5 | 9 | 11 | 5 | 8 | 8 | 16 | 6 | |
| Spatial average monitoring sites in : | ||||||||||||||||
| Brussels | 22 | 18 | 10 | 7 | 14 | 12 | 11 | 18 | 20 | 16 | 18 | 21 | 29 | 22 | ||
| Flanders | 17 | 15 | 8 | 6 | 11 | 9 | 9 | 13 | 14 | 13 | 15 | 17 | 19 | 18 | ||
| Wallonia | 8 | 7 | 3 | 2 | 5 | 3 | 4 | 7 | 8 | 5 | 7 | 7 | 11 | 8 | ||
| Belgium | 16 | 13 | 7 | 5 | 10 | 8 | 8 | 12 | 14 | 11 | 13 | 15 | 19 | 16 | ||
| Interpolated spatial average in : | ||||||||||||||||
| Brussels | 13 | 11 | 5 | 4 | 7 | 7 | 6 | 11 | 12 | 9 | 11 | 13 | 19 | NA | ||
| Flanders | 9 | 7 | 3 | 2 | 4 | 4 | 4 | 6 | 7 | 5 | 7 | 8 | 11 | NA | ||
| Wallonia | 4 | 3 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 2 | 3 | 3 | 6 | NA | ||
| Belgium | 6 | 5 | 2 | 1 | 3 | 3 | 3 | 4 | 5 | 4 | 5 | 5 | 8 | NA | ||
These data are not validated : they should not be used for any study whatsoever
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