| Code | city | 09/07 | 10/07 | 11/07 | 12/07 | 13/07 | 14/07 | 15/07 | 16/07 | 17/07 | 18/07 | 19/07 | 20/07 | 21/07 | 22/07 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 41B001 | Brussel (Kunst-Wet) | 13 | 14 | 12 | 9 | 12 | 14 | 12 | 21 | 23 | 16 | 13 | 18 | 18 | 16 | |
| 41B004 | Brussel (Sint-Katelijne) | 10 | 11 | 10 | 8 | 9 | 11 | 11 | 11 | 10 | 7 | 5 | 8 | 8 | 6 | |
| 41B006 | Brussel (EU Parlement) | 20 | 24 | 11 | 10 | 19 | 26 | 24 | 22 | 12 | 6 | 5 | 9 | 7 | 7 | |
| 41B008 | Brussel (Belliardstraat) | 15 | 14 | 11 | 9 | 10 | 12 | 12 | 16 | 14 | 9 | 7 | 11 | 10 | 10 | |
| 41B011 | Sint-Agatha-Berchem | 9 | 7 | 6 | 6 | 6 | 9 | 6 | 8 | 10 | 6 | 5 | 6 | 7 | 5 | |
| 41BUL1 | Brussel (Zuidlaan) | 17 | 12 | 14 | 9 | 8 | 12 | 10 | 15 | 15 | 19 | 16 | 18 | 16 | 17 | |
| 41CHA1 | Ganshoren (Keizer-Karel) | 31 | 32 | 27 | 19 | 23 | 29 | 26 | 27 | 24 | 17 | 11 | 16 | 13 | 16 | |
| 41MEU1 | Neder-Over-Heembeek | 11 | 10 | 7 | 6 | 6 | 8 | 8 | 9 | 9 | 4 | 3 | 6 | 6 | 4 | |
| 41N043 | Voorhaven (Haren) | 15 | 11 | 7 | 5 | 8 | 11 | 10 | 12 | 10 | 4 | 2 | 8 | 8 | 5 | |
| 41R001 | Sint-Jans-Molenbeek | 17 | 16 | 14 | 11 | 13 | 17 | 16 | 16 | 14 | 10 | 8 | 12 | 10 | 9 | |
| 41R002 | Elsene | 8 | 8 | 6 | 5 | 7 | 8 | 8 | 10 | 10 | 7 | 5 | 9 | 7 | 7 | |
| 41R012 | Ukkel | 6 | 7 | 6 | 5 | 6 | 7 | 7 | 9 | 8 | 5 | 4 | 8 | 6 | 6 | |
| 41REG1 | Brussel (Regentlaan) | 17 | 15 | 15 | 11 | 16 | 20 | 16 | 32 | 40 | 30 | 22 | 28 | 19 | 25 | |
| 41VBX3 | Brussel (Lakensestraat) | 19 | 18 | 17 | 14 | 14 | 19 | 18 | 19 | 15 | 10 | 8 | 13 | 12 | 10 | |
| 47E013 | Vorst | 10 | 11 | 10 | 8 | 8 | 10 | 11 | 11 | 9 | 6 | 5 | 9 | 7 | 8 | |
| 40AT44 | Antwerpen (Ordamstraat) | 15 | 11 | 7 | 5 | 8 | 11 | 12 | 13 | 14 | 11 | 7 | 8 | 13 | 10 | |
| 40AT83 | Berendrecht | 8 | 6 | 5 | 4 | 5 | 6 | 5 | 11 | 16 | 21 | 9 | 9 | 12 | 13 | |
| 40LD02 | Geel | 6 | 6 | 6 | 5 | 5 | 7 | 5 | 6 | 6 | 5 | 5 | 5 | 8 | 7 | |
| 40R822 | Antwerpen (haven) | 26 | 22 | 28 | 29 | 29 | 32 | 31 | 24 | 19 | 15 | 17 | 19 | 17 | 22 | |
| 40R891 | Antwerpen (haven) | 19 | 16 | 9 | 7 | 11 | 14 | 12 | 15 | 19 | 12 | 11 | 13 | 14 | 17 | |
| 40R897 | Antwerpen (haven) | 26 | 20 | 15 | 11 | 14 | 18 | 19 | 24 | 32 | 20 | 24 | 20 | 23 | 27 | |
| 40SA04 | Hoevenen | 6 | 5 | 5 | 4 | 4 | 6 | 5 | 5 | 7 | 4 | 4 | 5 | 7 | 4 | |
| 40SA08 | Stabroek | 7 | 5 | 4 | 4 | 4 | 6 | 4 | 6 | 11 | 4 | 4 | 5 | 9 | 8 | |
| 40SZ05 | Steenokkerzeel | 5 | 5 | 4 | 4 | 4 | 5 | 5 | 6 | 7 | 3 | 4 | 5 | 5 | 4 | |
| 40ZB07 | Zeebrugge | 18 | 15 | 9 | 9 | 8 | 12 | 12 | 14 | 11 | 7 | 15 | 7 | 7 | 13 | |
| 40ZB08 | Zeebrugge (Evendijk-Oost) | 22 | 21 | 14 | 16 | 15 | 25 | 20 | 24 | 18 | 5 | 31 | 8 | 13 | 14 | |
| 40ZB12 | Zeebrugge (H.V. Wolvenstraat) | 14 | 10 | 5 | 5 | 3 | 5 | 6 | 9 | 2 | 0 | 0 | 0 | 0 | 0 | |
| 42DU07 | Antwerpen (Deurne) | 9 | 7 | 6 | 5 | 5 | 7 | 7 | 8 | 13 | 9 | 6 | 7 | 8 | 10 | |
| 42M802 | Antwerpen (Luchtbal) | 11 | 10 | 6 | 5 | 6 | 8 | 7 | 8 | 11 | 6 | 4 | 7 | 8 | 8 | |
| 42MK02 | Antwerpen (Merksem) | 9 | 7 | 5 | 4 | 6 | 6 | 6 | 9 | 16 | 10 | 6 | 11 | 11 | 14 | |
| 42N016 | Dessel | 11 | 8 | 5 | 4 | 4 | 6 | 5 | 8 | 8 | 4 | 4 | 5 | 6 | 8 | |
| 42N027 | Bree | 7 | 7 | 7 | 7 | 6 | 8 | 6 | 8 | 6 | 5 | 4 | 4 | 5 | 5 | |
| 42N035 | Aarschot | 5 | 5 | 6 | 4 | 5 | 6 | 5 | 7 | 7 | 4 | 4 | 5 | 5 | 6 | |
| 42N040 | Sint-Pieters-Leeuw | 6 | 7 | 7 | 5 | 0 | 0 | 8 | 9 | 7 | 4 | 3 | 5 | 5 | 4 | |
| 42N047 | Hasselt | 6 | 7 | 6 | 5 | 4 | 6 | 6 | 6 | 6 | 4 | 3 | 5 | 4 | 7 | |
| 42N054 | Walshoutem | 7 | 7 | 5 | 5 | 5 | 6 | 5 | 6 | 6 | 4 | 3 | 4 | 3 | 5 | |
| 42R020 | Vilvoorde | 9 | 0 | 6 | 5 | 6 | 8 | 8 | 8 | 8 | 3 | 3 | 7 | 5 | 4 | |
| 42R801 | Borgerhout | 11 | 10 | 7 | 6 | 6 | 8 | 8 | 9 | 13 | 9 | 6 | 7 | 9 | 9 | |
| 42R802 | Borgerhout (straatkant) | 15 | 13 | 8 | 7 | 7 | 9 | 9 | 10 | 13 | 9 | 6 | 6 | 9 | 9 | |
| 42R803 | Antwerpen (Park Spoor Noord) | 11 | 9 | 6 | 5 | 6 | 8 | 8 | 9 | 13 | 9 | 5 | 9 | 10 | 10 | |
| 42R804 | Borgerhout (Ring) | 13 | 11 | 10 | 10 | 14 | 14 | 12 | 19 | 28 | 23 | 16 | 21 | 19 | 26 | |
| 42R805 | Antwerpen (Belgiëlei) | 17 | 14 | 10 | 9 | 12 | 14 | 14 | 16 | 17 | 11 | 9 | 11 | 12 | 14 | |
| 42R817 | Antwerpen (Groenenborgerlaan) | 0 | 8 | 6 | 5 | 5 | 7 | 6 | 10 | 15 | 8 | 8 | 8 | 9 | 12 | |
| 42R830 | Doel (Scheldemolenstraat) | 19 | 15 | 10 | 9 | 9 | 14 | 11 | 14 | 10 | 4 | 4 | 8 | 11 | 6 | |
| 42R831 | Berendrecht | 9 | 7 | 6 | 5 | 5 | 8 | 7 | 8 | 10 | 5 | 6 | 7 | 11 | 9 | |
| 42R842 | Mechelen (Hendrik Speecqvest) | 18 | 14 | 11 | 8 | 0 | 0 | 16 | 17 | 15 | 9 | 10 | 12 | 11 | 12 | |
| 44M705 | Roeselare (Haven) | 19 | 17 | 12 | 9 | 11 | 13 | 15 | 16 | 9 | 5 | 3 | 6 | 6 | 7 | |
| 44N029 | Houtem (Veurne) | 10 | 11 | 8 | 7 | 5 | 7 | 7 | 7 | 4 | 3 | 2 | 2 | 4 | 3 | |
| 44N052 | Zwevegem | 11 | 9 | 9 | 6 | 9 | 9 | 11 | 12 | 6 | 6 | 4 | 5 | 5 | 5 | |
| 44R701 | Gent (Baudelopark) | 11 | 11 | 11 | 7 | 11 | 17 | 12 | 14 | 10 | 6 | 5 | 7 | 11 | 6 | |
| 44R702 | Gent (Gustaaf Callierlaan) | 12 | 12 | 10 | 7 | 15 | 21 | 12 | 14 | 12 | 7 | 6 | 10 | 12 | 8 | |
| 44R731 | Evergem | 17 | 17 | 16 | 10 | 18 | 16 | 17 | 17 | 8 | 5 | 4 | 5 | 6 | 5 | |
| 44R740 | Sint-Kruiswinkel | 12 | 10 | 9 | 7 | 9 | 14 | 8 | 14 | 15 | 11 | 14 | 14 | 12 | 14 | |
| 44R750 | Zelzate | 15 | 13 | 10 | 7 | 9 | 12 | 10 | 12 | 9 | 6 | 6 | 7 | 9 | 9 | |
| 47E007 | Sint-Pieters-Leeuw | 8 | 10 | 8 | 0 | 8 | 10 | 9 | 9 | 7 | 5 | 3 | 5 | 5 | 4 | |
| 47E008 | Grimbergen | 6 | 6 | 5 | 5 | 5 | 6 | 6 | 8 | 7 | 4 | 2 | 6 | 5 | 3 | |
| 47E009 | Zemst | 6 | 6 | 5 | 5 | 4 | 6 | 6 | 8 | 7 | 3 | 3 | 7 | 6 | 4 | |
| 47E703 | Oost-Eeklo | 15 | 13 | 12 | 8 | 9 | 11 | 9 | 9 | 6 | 4 | 3 | 3 | 5 | 4 | |
| 47E704 | Wachtebeke | 9 | 9 | 9 | 7 | 6 | 9 | 8 | 9 | 7 | 5 | 6 | 6 | 8 | 7 | |
| 47E714 | Dudzele | 14 | 14 | 9 | 9 | 8 | 10 | 10 | 11 | 6 | 5 | 4 | 3 | 4 | 6 | |
| 47E715 | Zuienkerke | 14 | 13 | 9 | 9 | 8 | 10 | 10 | 11 | 4 | 3 | 2 | 3 | 5 | 2 | |
| 47E716 | Mariakerke | 13 | 11 | 14 | 14 | 14 | 14 | 15 | 14 | 6 | 4 | 3 | 4 | 6 | 4 | |
| 47E814 | Ham (Genebosstraat) | 14 | 14 | 11 | 9 | 11 | 14 | 13 | 12 | 9 | 6 | 7 | 8 | 8 | 8 | |
| 43N060 | Havinnes | 5 | 5 | 5 | 5 | 6 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 43N064 | Rixensart | 4 | 5 | 4 | 4 | 4 | 5 | 5 | 6 | 7 | 4 | 3 | 6 | 5 | 4 | |
| 43N066 | Eupen | 5 | 5 | 5 | 3 | 9 | 6 | 6 | 4 | 4 | 3 | 2 | 3 | 3 | 4 | |
| 43N070 | Mons | 8 | 7 | 6 | 6 | 7 | 9 | 7 | 10 | 9 | 6 | 6 | 8 | 6 | 9 | |
| 43N073 | Vezin | 5 | 7 | 6 | 5 | 7 | 7 | 7 | 8 | 6 | 5 | 4 | 4 | 5 | 5 | |
| 43N085 | Vielsalm | 5 | 4 | 5 | 4 | 5 | 6 | 5 | 5 | 5 | 4 | 3 | 3 | 4 | 3 | |
| 43N093 | Sinsin | 6 | 8 | 5 | 4 | 9 | 9 | 7 | 7 | 8 | 6 | 4 | 5 | 5 | 5 | |
| 43N100 | Dourbes | 3 | 4 | 3 | 3 | 5 | 4 | 4 | 4 | 5 | 3 | 2 | 3 | 3 | 3 | |
| 43N113 | Saint-Ode | 5 | 5 | 4 | 3 | 4 | 6 | 5 | 5 | 5 | 4 | 3 | 3 | 4 | 4 | |
| 43N121 | Offagne | 5 | 5 | 3 | 4 | 4 | 5 | 4 | 7 | 6 | 4 | 3 | 3 | 4 | 4 | |
| 43N132 | Habay-La-Neuve | 4 | 4 | 3 | 2 | 3 | 4 | 4 | 4 | 8 | 6 | 3 | 3 | 3 | 3 | |
| 43R202 | Liège (Av M Destenay) | 14 | 15 | 14 | 10 | 12 | 16 | 12 | 14 | 10 | 8 | 7 | 11 | 7 | 11 | |
| 43R221 | Herstal | 12 | 14 | 13 | 9 | 16 | 15 | 12 | 15 | 9 | 5 | 5 | 10 | 7 | 9 | |
| 43R222 | Liège (ISSeP) | 12 | 14 | 13 | 9 | 12 | 13 | 10 | 10 | 8 | 5 | 4 | 8 | 6 | 7 | |
| 43R223 | Jemeppe-sur-Meuse | 11 | 11 | 9 | 7 | 9 | 11 | 8 | 12 | 12 | 6 | 5 | 9 | 5 | 9 | |
| 43R240 | Engis | 8 | 10 | 8 | 7 | 9 | 9 | 9 | 13 | 8 | 4 | 3 | 9 | 4 | 7 | |
| 43R401 | Namur | 11 | 12 | 10 | 8 | 8 | 10 | 11 | 12 | 7 | 5 | 4 | 7 | 6 | 8 | |
| 45R501 | Charleroi | 19 | 27 | 20 | 16 | 17 | 14 | 17 | 16 | 9 | 6 | 5 | 10 | 7 | 7 | |
| 45R503 | Charleroi - Parc | 12 | 14 | 9 | 8 | 9 | 11 | 10 | 13 | 11 | 8 | 7 | 11 | 7 | 10 | |
| 45R512 | Marchienne-Au-Pont | 20 | 22 | 14 | 10 | 9 | 11 | 18 | 13 | 11 | 8 | 6 | 10 | 8 | 10 | |
| 48R236 | Liége (Aéroport 2) | 13 | 19 | 18 | 9 | 15 | 17 | 18 | 20 | 12 | 6 | 6 | 9 | 8 | 9 | |
| 48R237 | Liège (Aéroport 1) | 10 | 12 | 10 | 6 | 8 | 9 | 9 | 14 | 7 | 3 | 3 | 5 | 4 | 5 | |
| 48R515 | Charleroi (Aeroport 1) | 14 | 13 | 12 | 9 | 9 | 9 | 11 | 11 | 9 | 6 | 5 | 8 | 6 | 9 | |
| 48R516 | Charleroi (Aeroport 2) | 8 | 8 | 6 | 4 | 6 | 7 | 7 | 10 | 11 | 6 | 7 | 10 | 8 | 9 | |
| Spatial average monitoring sites in : | ||||||||||||||||
| Brussels | 14 | 14 | 11 | 9 | 11 | 14 | 13 | 16 | 15 | 10 | 8 | 12 | 10 | 10 | ||
| Flanders | 12 | 11 | 9 | 7 | 8 | 11 | 10 | 11 | 11 | 7 | 7 | 7 | 8 | 9 | ||
| Wallonia | 9 | 10 | 9 | 6 | 8 | 9 | 9 | 10 | 8 | 5 | 4 | 7 | 5 | 7 | ||
| Belgium | 12 | 11 | 9 | 7 | 9 | 11 | 10 | 12 | 11 | 7 | 6 | 8 | 8 | 8 | ||
| Interpolated spatial average in : | ||||||||||||||||
| Brussels | 8 | 8 | 7 | 6 | 7 | 8 | 8 | 9 | 8 | 5 | 4 | 6 | 5 | 5 | ||
| Flanders | 7 | 7 | 6 | 4 | 5 | 6 | 6 | 7 | 5 | 3 | 3 | 3 | 4 | 4 | ||
| Wallonia | 4 | 5 | 4 | 3 | 4 | 5 | 5 | 5 | 4 | 3 | 2 | 3 | 3 | 3 | ||
| Belgium | 6 | 6 | 5 | 4 | 5 | 6 | 5 | 6 | 5 | 3 | 2 | 3 | 3 | 3 | ||
These data are not validated : they should not be used for any study whatsoever
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