| Code | city | 16/09 | 17/09 | 18/09 | 19/09 | 20/09 | 21/09 | 22/09 | 23/09 | 24/09 | 25/09 | 26/09 | 27/09 | 28/09 | 29/09 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 41B001 | Brussel (Kunst-Wet) | 35 | 16 | 18 | 22 | 34 | 35 | 17 | 23 | 25 | 24 | 26 | 27 | 36 | 26 | |
| 41B004 | Brussel (Sint-Katelijne) | 26 | 15 | 17 | 19 | 25 | 27 | 20 | 14 | 14 | 14 | 11 | 12 | 22 | 22 | |
| 41B006 | Brussel (EU Parlement) | 22 | 14 | 17 | 23 | 24 | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| 41B008 | Brussel (Belliardstraat) | 27 | NA | NA | NA | NA | 33 | 24 | NA | NA | NA | NA | NA | 26 | 22 | |
| 41B011 | Sint-Agatha-Berchem | 13 | 7 | 9 | 10 | 16 | 17 | 10 | 9 | 9 | 7 | 3 | 4 | 10 | 11 | |
| 41BUL1 | Brussel (Zuidlaan) | 31 | 14 | 16 | 19 | 28 | 32 | 17 | 24 | 23 | 22 | 20 | 19 | 27 | 24 | |
| 41CHA1 | Ganshoren (Keizer-Karel) | 24 | 16 | 16 | 18 | 32 | 39 | 20 | 12 | 14 | 10 | 6 | 13 | 30 | 26 | |
| 41MEU1 | Neder-Over-Heembeek | 17 | 11 | 15 | 18 | 25 | 23 | 10 | 13 | 12 | 11 | 11 | 9 | 15 | 15 | |
| 41N043 | Voorhaven (Haren) | 25 | 15 | 19 | 21 | 28 | 29 | 14 | 18 | 16 | 15 | 13 | 12 | 19 | 15 | |
| 41R001 | Sint-Jans-Molenbeek | 26 | 21 | 25 | 26 | 29 | 33 | 16 | 13 | 15 | 13 | 10 | 12 | 22 | 19 | |
| 41R002 | Elsene | 27 | 13 | 15 | 15 | 24 | 27 | 25 | 18 | 18 | 17 | 12 | 17 | 31 | 26 | |
| 41R012 | Ukkel | 16 | 10 | 11 | 12 | 11 | 9 | 7 | 6 | 8 | 6 | 5 | 6 | 9 | 7 | |
| 41REG1 | Brussel (Regentlaan) | 41 | 18 | 21 | 22 | 26 | 27 | 14 | 25 | 33 | 25 | 25 | 36 | 51 | 24 | |
| 41VBX1 | Brussel (Groot Eiland) | 27 | 19 | 20 | 23 | 28 | 28 | 16 | 14 | 14 | 13 | 11 | 12 | 22 | 20 | |
| 41VBX2 | Brussel (Huidevetterstraat) | 26 | 14 | 18 | 20 | 23 | 22 | 12 | 15 | 16 | 14 | 12 | 14 | 24 | 19 | |
| 41VBX3 | Brussel (Lakensestraat) | 32 | 22 | 26 | 29 | 38 | 42 | 29 | 18 | 17 | 20 | 14 | 15 | 26 | 28 | |
| 47E013 | Vorst | 17 | 13 | 16 | 17 | 18 | 14 | 9 | 7 | 9 | 6 | 6 | 9 | 14 | 10 | |
| 40AT44 | Antwerpen (Ordamstraat) | 29 | 12 | 13 | 13 | 18 | 22 | 18 | 34 | 38 | 31 | 24 | 19 | 27 | 25 | |
| 40AT83 | Berendrecht | 17 | 6 | 7 | 7 | 8 | 14 | 11 | 30 | 35 | 28 | 24 | 22 | 30 | 14 | |
| 40LD02 | Geel | 11 | 5 | 7 | 8 | 10 | 13 | 13 | 9 | 11 | 8 | 8 | 7 | 8 | 9 | |
| 40R822 | Antwerpen (haven) | 37 | 41 | 34 | 23 | 24 | 41 | 47 | 14 | 21 | 15 | 12 | 18 | 32 | 23 | |
| 40R891 | Antwerpen (haven) | 26 | 14 | 14 | 15 | 21 | 22 | 16 | 21 | 29 | 20 | 14 | 15 | 24 | 16 | |
| 40R892 | Kallo (sluis Kallo) | 30 | 22 | 24 | 23 | 30 | 30 | 20 | 9 | 17 | 11 | 9 | 13 | 16 | 12 | |
| 40R897 | Antwerpen (haven) | 29 | 27 | 32 | 41 | 54 | 35 | 25 | 13 | 16 | 14 | 11 | 21 | 17 | 14 | |
| 40SA04 | Hoevenen | 14 | 7 | 7 | 7 | 8 | 12 | 9 | 11 | 19 | 14 | 13 | 10 | 12 | 14 | |
| 40SA08 | Stabroek | 22 | 6 | 7 | 8 | 8 | 11 | 9 | 17 | 25 | 18 | 18 | 13 | 19 | 11 | |
| 40SZ05 | Steenokkerzeel | 16 | 5 | 7 | 8 | 8 | 8 | 6 | 6 | 9 | 7 | 6 | 9 | 15 | 8 | |
| 42DU07 | Antwerpen (Deurne) | 24 | 10 | 11 | 11 | NA | 21 | 15 | 23 | 24 | 25 | 19 | 15 | 28 | 18 | |
| 42M802 | Antwerpen (Luchtbal) | 25 | 9 | 10 | 11 | 16 | 22 | 16 | 17 | 23 | 15 | 12 | 11 | 21 | 19 | |
| 42MK02 | Antwerpen (Merksem) | 29 | 11 | 10 | 10 | 13 | 15 | 14 | 24 | 28 | 24 | 20 | 22 | 30 | 18 | |
| 42N016 | Dessel | 10 | 7 | 7 | 7 | 11 | 15 | 12 | 5 | 7 | 6 | 5 | 6 | 7 | 8 | |
| 42N027 | Bree | 7 | 7 | 11 | 14 | 16 | 13 | 11 | 6 | 6 | 5 | 3 | 3 | 5 | 7 | |
| 42N035 | Aarschot | 14 | 5 | 7 | 8 | 10 | 9 | 8 | 5 | 6 | 5 | 4 | 5 | 8 | 7 | |
| 42N040 | Sint-Pieters-Leeuw | 8 | 8 | 11 | 12 | 10 | 8 | 7 | 5 | 5 | 5 | 3 | 3 | 5 | 8 | |
| 42N047 | Hasselt | 16 | 8 | 13 | 14 | 16 | 16 | 14 | 5 | 7 | 7 | 6 | 6 | 11 | 10 | |
| 42N054 | Walshoutem | 8 | 5 | 11 | 10 | 10 | 13 | 8 | 4 | 5 | 4 | 3 | 4 | 7 | 7 | |
| 42R020 | Vilvoorde | 16 | 7 | 11 | 13 | 18 | 19 | 12 | 16 | 15 | 14 | 10 | 7 | 13 | 15 | |
| 42R801 | Borgerhout | 21 | 11 | 13 | 13 | 20 | 28 | NA | NA | NA | 15 | 11 | 12 | 20 | 23 | |
| 42R802 | Borgerhout (straatkant) | 23 | 12 | 15 | 18 | 30 | 35 | 28 | 20 | 23 | 19 | 12 | 14 | 22 | 26 | |
| 42R803 | Antwerpen (Park Spoor Noord) | NA | 15 | 15 | 15 | 18 | NA | NA | NA | 17 | 14 | 10 | NA | 19 | NA | |
| 42R804 | Borgerhout (Ring) | 39 | 22 | 15 | 15 | 18 | 28 | 19 | 27 | 28 | 29 | 26 | 37 | 37 | 17 | |
| 42R805 | Antwerpen (Belgiëlei) | 28 | 20 | 20 | 22 | 24 | 31 | 23 | 18 | 23 | 17 | 13 | 16 | 21 | 23 | |
| 42R806 | Antwerpen (Maerlant) | NA | NA | 16 | 17 | 25 | NA | NA | NA | 27 | 28 | 21 | 23 | 25 | NA | |
| 42R817 | Antwerpen (Groenenborgerlaan) | 23 | 14 | 13 | 12 | 16 | 21 | 12 | 12 | 14 | 11 | 8 | 10 | 14 | 14 | |
| 42R830 | Doel (Scheldemolenstraat) | 13 | 17 | 13 | 14 | 20 | 45 | 42 | 23 | 18 | 16 | 11 | 5 | 5 | 26 | |
| 42R831 | Berendrecht | 16 | 8 | 8 | 8 | 10 | 16 | 11 | 14 | 22 | 19 | 18 | 11 | 10 | 11 | |
| 42R842 | Mechelen (Hendrik Speecqvest) | 27 | 19 | 18 | 20 | 19 | 21 | 11 | 13 | 18 | 14 | 10 | 13 | 28 | 14 | |
| 44M705 | Roeselare (Haven) | 14 | 19 | 19 | 22 | 24 | 21 | 14 | 10 | 11 | 10 | 6 | 7 | 13 | 19 | |
| 44N029 | Houtem (Veurne) | 3 | 7 | 12 | 14 | 12 | 11 | 8 | 3 | 5 | 4 | 2 | 2 | 4 | 7 | |
| 44N052 | Zwevegem | 12 | 12 | 16 | 13 | 14 | 11 | 7 | 6 | 7 | 5 | 4 | 4 | 9 | 8 | |
| 44R701 | Gent (Baudelopark) | 17 | 14 | 20 | 21 | 24 | 15 | 14 | 9 | 12 | 10 | 7 | 8 | 14 | 15 | |
| 44R702 | Gent (Gustaaf Callierlaan) | 22 | 11 | 17 | 16 | 19 | 22 | 15 | 13 | 18 | 14 | 9 | 11 | 21 | 17 | |
| 44R731 | Evergem | 12 | 17 | 25 | 24 | 18 | 13 | 15 | 14 | 13 | 11 | 7 | 5 | 9 | 12 | |
| 44R740 | Sint-Kruiswinkel | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 11 | 14 | 14 | NA | |
| 44R750 | Zelzate | 16 | 10 | 14 | 15 | 22 | 21 | 12 | 17 | 21 | 14 | 17 | 14 | 14 | 12 | |
| 47E007 | Sint-Pieters-Leeuw | 9 | 9 | 13 | 14 | 14 | 13 | 8 | 7 | 6 | 6 | 3 | 4 | 6 | 9 | |
| 47E008 | Grimbergen | 13 | 7 | 10 | 10 | 12 | 14 | 13 | 12 | 9 | 9 | 6 | 5 | 13 | 15 | |
| 47E009 | Zemst | 11 | 6 | 8 | 8 | 9 | 9 | 8 | 11 | 10 | 9 | 6 | 5 | 7 | 9 | |
| 47E703 | Oost-Eeklo | 14 | 16 | 17 | 17 | 20 | 21 | 17 | 12 | 14 | 11 | 9 | 8 | 11 | 14 | |
| 47E704 | Wachtebeke | 12 | 9 | 12 | 15 | 16 | 14 | 10 | 5 | 10 | 7 | 5 | 7 | 10 | 7 | |
| 47E714 | Dudzele | NA | 8 | NA | NA | NA | 13 | 10 | NA | NA | 6 | 4 | 6 | 5 | NA | |
| 47E715 | Zuienkerke | 5 | 9 | NA | NA | 15 | 15 | 14 | 5 | 5 | 5 | 2 | 2 | 4 | 9 | |
| 47E716 | Mariakerke | 11 | 16 | 21 | 19 | 17 | 14 | 11 | NA | NA | 7 | 4 | 5 | 9 | 10 | |
| 47E814 | Ham (Genebosstraat) | 14 | 15 | 16 | 18 | 27 | 24 | 22 | 5 | 6 | 5 | 4 | 4 | 7 | 14 | |
| 43N060 | Havinnes | 7 | 5 | 6 | 6 | 8 | 8 | 6 | 7 | 10 | 10 | 5 | 3 | 4 | 7 | |
| 43N064 | Rixensart | 10 | 4 | 7 | 8 | 8 | 10 | 7 | 4 | 5 | 4 | 2 | 3 | 5 | 7 | |
| 43N066 | Eupen | 5 | 8 | 7 | 6 | 5 | 4 | 3 | 4 | 2 | 2 | 1 | 1 | 4 | 1 | |
| 43N070 | Mons | 11 | 6 | 7 | 8 | 14 | 22 | 12 | 17 | 17 | 13 | 8 | 10 | 14 | 6 | |
| 43N073 | Vezin | 6 | 6 | 10 | 10 | 7 | 4 | 4 | 3 | 4 | 3 | 2 | 3 | 4 | 3 | |
| 43N085 | Vielsalm | 2 | 4 | 2 | 2 | 2 | 2 | 2 | 1 | 3 | 1 | 0 | 1 | 1 | 2 | |
| 43N093 | Sinsin | 7 | 9 | 9 | 12 | 7 | 8 | 5 | 3 | 2 | 2 | 1 | 2 | 5 | 4 | |
| 43N100 | Dourbes | 4 | 5 | 7 | 5 | 3 | 3 | 2 | 1 | 2 | 1 | 1 | 1 | 2 | 2 | |
| 43N113 | Saint-Ode | 5 | 6 | 4 | 4 | 5 | 5 | 4 | 2 | 2 | 1 | 1 | 1 | 2 | 4 | |
| 43N121 | Offagne | 3 | 5 | 3 | 3 | 6 | 6 | 3 | 1 | 1 | NA | NA | NA | NA | NA | |
| 43N132 | Habay-La-Neuve | 4 | 5 | 4 | 5 | 6 | 6 | 5 | 5 | 3 | 3 | 2 | 2 | 4 | 5 | |
| 43R202 | Liège (Av M Destenay) | 24 | 19 | 19 | 21 | 26 | 21 | 17 | 15 | 15 | 17 | 13 | 9 | 19 | 15 | |
| 43R221 | Herstal | 19 | 18 | 19 | 18 | 25 | 22 | 17 | 11 | 12 | 10 | 8 | 7 | 14 | 13 | |
| 43R222 | Liège (ISSeP) | 20 | 18 | 21 | 20 | 23 | 16 | 12 | 7 | 9 | 6 | 4 | 5 | 14 | 11 | |
| 43R223 | Jemeppe-sur-Meuse | 15 | 13 | 14 | 15 | 18 | 20 | 19 | 10 | 13 | 11 | 11 | 9 | 13 | 9 | |
| 43R240 | Engis | 11 | 10 | 12 | 14 | 16 | 15 | 11 | 8 | 11 | 9 | 8 | 6 | 8 | 8 | |
| 43R401 | Namur | 13 | 12 | 15 | 19 | 24 | 18 | 17 | 10 | 9 | 8 | 3 | 4 | 11 | 12 | |
| 45R501 | Charleroi | 19 | 21 | 27 | 31 | 28 | 26 | 16 | 13 | 15 | 15 | 11 | 9 | 16 | NA | |
| 45R502 | Lodelinsart | 19 | 8 | 13 | 14 | 20 | 23 | 13 | 8 | 12 | 7 | 6 | 9 | 22 | 13 | |
| 45R503 | Charleroi - Parc | 22 | 11 | 16 | 19 | 21 | 23 | 11 | 13 | 16 | 15 | 12 | 11 | 21 | 13 | |
| 45R512 | Marchienne-Au-Pont | 15 | 9 | 16 | 18 | 25 | 22 | 11 | 9 | 8 | 8 | 5 | 6 | 14 | 10 | |
| 48R236 | Liége (Aéroport 2) | 14 | 18 | 24 | 24 | 14 | 11 | 10 | 4 | 7 | 6 | 3 | 5 | 13 | 7 | |
| 48R237 | Liège (Aéroport 1) | 11 | 9 | 14 | 15 | 18 | 19 | 12 | 8 | 9 | 10 | 6 | 5 | 8 | 11 | |
| 48R515 | Charleroi (Aeroport 1) | 13 | 9 | 13 | 15 | 20 | 17 | 10 | 7 | 7 | 6 | 4 | 3 | 11 | 12 | |
| 48R516 | Charleroi (Aeroport 2) | 18 | 8 | 12 | 13 | 17 | 18 | 10 | 8 | 12 | 9 | 8 | 7 | 18 | 10 | |
| Spatial average monitoring sites in : | ||||||||||||||||
| Brussels | 25 | 15 | 17 | 20 | 26 | 27 | 16 | 15 | 16 | 14 | 12 | 14 | 24 | 20 | ||
| Flanders | 18 | 12 | 14 | 15 | 18 | 19 | 15 | 13 | 16 | 13 | 10 | 10 | 15 | 14 | ||
| Wallonia | 12 | 10 | 12 | 13 | 15 | 14 | 10 | 7 | 8 | 7 | 5 | 5 | 10 | 8 | ||
| Belgium | 18 | 12 | 14 | 15 | 18 | 19 | 14 | 12 | 14 | 12 | 9 | 10 | 15 | 13 | ||
| Interpolated spatial average in : | ||||||||||||||||
| Brussels | 15 | 9 | 12 | 13 | 16 | 17 | 11 | 9 | 10 | 8 | 6 | 7 | 13 | NA | ||
| Flanders | 9 | 6 | 8 | 8 | 10 | 12 | 9 | 5 | 6 | 5 | 3 | 3 | 7 | NA | ||
| Wallonia | 5 | 5 | 6 | 6 | 7 | 7 | 5 | 3 | 3 | 3 | 2 | 2 | 4 | NA | ||
| Belgium | 7 | 5 | 7 | 7 | 8 | 9 | 6 | 4 | 5 | 4 | 2 | 3 | 6 | NA | ||
These data are not validated : they should not be used for any study whatsoever
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