| Code | City | Region | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 (*) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40EG05 | Evergem (Rieme) | Fla | 25 | 26 | 29 | 23 | 20 | 23 | 22 | ||||||||||
| 40OB01 | Oostrozebeke | Fla | 33 | 34 | 30 | 31 | 28 | 28 | 28 | 28 | 27 | 25 | 25 | 25 | 26 | 23 | 19 | 23 | 22 |
| 44WG06 | Wondelgem (knooppunt Zeeschipstraat) | Fla | NA | ||||||||||||||||
| 42M802 | Antwerpen (Luchtbal) | Fla | 32 | 34 | 32 | 28 | 25 | 24 | 24 | 25 | 27 | 22 | 21 | 22 | 23 | 21 | 19 | 22 | 21 |
| 42DU07 | Antwerpen (Deurne) | Fla | 20 | 19 | 19 | 21 | 20 | ||||||||||||
| 42MK02 | Antwerpen (Merksem) | Fla | 21 | 18 | 21 | 20 | |||||||||||||
| 42R803 | Antwerpen (Park Spoor Noord) | Fla | NA | 23 | 25 | 25 | 23 | 22 | 22 | 24 | 21 | 18 | 21 | 20 | |||||
| 44R740 | Sint-Kruiswinkel | Fla | 31 | 34 | 28 | 30 | 26 | 25 | 25 | 25 | 25 | 25 | 23 | 24 | NA | 21 | 25 | 20 | |
| 40AL02 | Doel (Engelsesteenweg) | Fla | 31 | 25 | 26 | 25 | 23 | 23 | 23 | 25 | 23 | 22 | 23 | 23 | 20 | 16 | 19 | 19 | |
| 42HH08 | Houthalen-Helchteren | Fla | 22 | 21 | 22 | 23 | NA | 16 | 19 | 19 | |||||||||
| 42R805 | Antwerpen (Belgiëlei) | Fla | NA | 22 | 24 | 28 | 25 | 23 | 25 | 26 | 23 | 20 | 22 | 19 | |||||
| 44EG08 | Evergem (knooppunt Elslo) | Fla | NA | ||||||||||||||||
| 44M705 | Roeselare (Haven) | Fla | 31 | 32 | 29 | 30 | 27 | 24 | 25 | 25 | 27 | 24 | 23 | 22 | NA | 18 | 25 | 19 | |
| 44R701 | Gent (Baudelopark) | Fla | 33 | 31 | 28 | 30 | 25 | 26 | 28 | 26 | 29 | 25 | 23 | 26 | 26 | 19 | 16 | 21 | 19 |
| 44R750 | Zelzate | Fla | 29 | 32 | 29 | 30 | 27 | 26 | 24 | 24 | 25 | 24 | 22 | 21 | 22 | 19 | 17 | 20 | 19 |
| 45R512 | Marchienne-Au-Pont | Wal | 30 | NA | 24 | 23 | 20 | 24 | 26 | 25 | 27 | 22 | 22 | 23 | 25 | 16 | 14 | 20 | 19 |
| 40AL05 | Kallo (sluis Kallo) | Fla | 34 | 29 | 28 | 22 | 24 | 23 | 23 | 24 | 23 | 21 | 21 | 22 | 19 | 17 | 20 | 18 | |
| 40G100 | Gent (Terdonkplein) | Fla | NA | 22 | 18 | ||||||||||||||
| 40GK37 | Genk | Fla | 20 | 20 | 18 | ||||||||||||||
| 40MN01 | Menen | Fla | 27 | 26 | 25 | 27 | 25 | 24 | 26 | 24 | 25 | 24 | 23 | 24 | 25 | 21 | 18 | 22 | 18 |
| 42AL10 | Antwerpen (Blancefloerlaan) | Fla | 22 | 20 | 18 | 21 | 18 | ||||||||||||
| 42R020 | Vilvoorde | Fla | 30 | 31 | 27 | 27 | 25 | 24 | 23 | 23 | 25 | 22 | 21 | 21 | 22 | 18 | 17 | 21 | 18 |
| 42R802 | Borgerhout (straatkant) | Fla | 32 | 30 | 30 | 31 | 30 | 24 | 23 | 24 | 25 | 27 | 24 | 22 | 23 | 21 | 18 | 20 | 18 |
| 42R804 |
Borgerhout (Ring) | Fla | NA | 26 | 27 | 23 | 21 | 22 | 22 | 19 | 18 | 20 | 18 | ||||||
| 42R842 | Mechelen (Hendrik Speecqvest) | Fla | NA | 23 | 24 | 20 | 15 | 19 | 18 | ||||||||||
| 41MEU1 | Neder-Over-Heembeek | Bru | NA | NA | 25 | 23 | 24 | 22 | 21 | 20 | 20 | NA | NA | 18 | 18 | 17 | 15 | 18 | 17 |
| 41R001 | Sint-Jans-Molenbeek | Bru | 29 | 30 | 25 | 25 | 26 | 22 | 23 | 21 | 22 | 19 | 17 | 16 | 18 | 17 | 16 | 19 | 17 |
| 40AL04 |
Kallo (Liefkenshoektunnel) | Fla | 21 | 26 | 25 | 24 | 22 | 24 | 19 | 18 | 20 | 17 | |||||||
| 40HB81 | Hoboken | Fla | 17 | ||||||||||||||||
| 40ZB07 |
Zeebrugge | Fla | NA | 19 | 17 | ||||||||||||||
| 40ZB08 | Zeebrugge (Evendijk-Oost) | Fla | 18 | 17 | |||||||||||||||
| 42R801 | Borgerhout | Fla | 29 | 29 | 27 | 27 | 26 | 24 | 23 | 23 | 24 | 27 | 23 | 23 | 23 | 20 | 17 | 19 | 17 |
| 42R818 | Antwerpen (Burchtse Weel) | Fla | NA | 23 | 21 | 22 | 23 | 24 | 20 | 16 | 19 | 17 | |||||||
| 42R823 | Beveren-Waas | Fla | 23 | 22 | 22 | 20 | 20 | 19 | 20 | 18 | 15 | 18 | 17 | ||||||
| 42R834 | Boom | Fla | NA | 25 | 22 | 22 | 21 | 21 | 22 | 20 | 19 | 20 | 21 | 18 | 14 | 17 | 17 | ||
| 42WW03 | Wuustwezel (Marialaan) | Fla | NA | ||||||||||||||||
| 42ZD08 | Zwijndrecht (Neerstraat) | Fla | NA | 22 | 19 | 16 | 19 | NA | |||||||||||
| 44N012 | Moerkerke | Fla | 26 | 29 | 23 | 24 | 20 | 19 | 19 | 20 | 21 | 20 | 19 | 20 | 20 | 18 | 15 | 18 | 17 |
| 44R702 | Gent (Gustaaf Callierlaan) | Fla | 28 | 28 | 24 | 24 | 23 | 24 | 22 | 20 | 20 | 22 | 19 | 16 | 19 | 17 | |||
| 44RL01 | Roeselare (Brugsesteenweg) | Fla | 27 | 27 | 25 | 26 | 22 | 21 | 22 | 21 | 23 | 21 | 21 | 22 | 23 | 19 | 16 | 18 | 17 |
| 41N043 | Voorhaven (Haren) | Bru | 33 | 40 | 34 | 34 | 32 | 27 | 25 | 26 | 27 | 26 | 22 | 23 | 24 | 19 | 15 | 18 | 16 |
| 41REG1 | Brussel (Regentlaan) | Bru | 15 | 18 | 16 | ||||||||||||||
| 40AL01 | Antwerpen-Linkeroever | Fla | 26 | 26 | 24 | 25 | 22 | 22 | 22 | 22 | 23 | 21 | 21 | 21 | 21 | 19 | NA | NA | 16 |
| 40AL03 | Verrebroek | Fla | 20 | 25 | 23 | 22 | 23 | 22 | 19 | 16 | 18 | 16 | |||||||
| 40SA04 | Hoevenen | Fla | 18 | 26 | 22 | 24 | 21 | 22 | 23 | 22 | 20 | 20 | 20 | 18 | 15 | 16 | 16 | ||
| 42AL09 | Antwerpen (Van Averbekelaan) | Fla | 20 | 18 | 16 | 17 | 16 | ||||||||||||
| 42N047 | Hasselt | Fla | 19 | 19 | 18 | 20 | 17 | 15 | 17 | 16 | |||||||||
| 42R817 | Antwerpen (Groenenborgerlaan) | Fla | 20 | 23 | 22 | 22 | 19 | 20 | 20 | 22 | 19 | 16 | 18 | 16 | |||||
| 42ZD01 | Zwijndrecht (Binnenplein) | Fla | NA | 22 | 21 | 17 | 20 | NA | |||||||||||
| 44N029 | Houtem (Veurne) | Fla | 26 | 27 | 22 | 24 | 20 | 18 | 18 | 19 | 20 | 19 | 18 | 18 | 19 | 17 | 14 | 17 | 16 |
| 44N052 | Zwevegem | Fla | 30 | 31 | 25 | 27 | 23 | 23 | 23 | 22 | 25 | 23 | 22 | 22 | 22 | 20 | 16 | 19 | 16 |
| 44R710 | Destelbergen | Fla | 23 | 26 | 24 | 25 | 22 | 23 | 22 | 21 | 23 | 21 | 19 | 20 | 21 | 18 | 15 | 18 | 16 |
| 43N070 | Mons | Wal | 27 | 21 | 27 | 28 | 19 | 23 | 21 | 20 | 18 | 20 | 16 | 21 | 19 | 16 | 16 | 19 | 16 |
| 43R221 | Herstal | Wal | 36 | 29 | 21 | 20 | 17 | 20 | 20 | 17 | 19 | 16 | 15 | 16 | 18 | 15 | 14 | 16 | 16 |
| 43R223 | Jemeppe-sur-Meuse | Wal | 29 | 27 | 25 | 25 | 20 | 22 | 22 | 19 | 22 | 18 | 17 | 19 | 20 | 16 | 13 | 14 | 16 |
| 40AT83 | Berendrecht | Fla | NA | 20 | 17 | 15 | 17 | 15 | |||||||||||
| 40HB23 | Hoboken | Fla | 29 | 32 | 29 | 28 | 25 | 25 | 25 | 22 | 24 | 23 | 21 | 21 | 21 | 19 | 15 | 20 | NA |
| 40SZ05 | Steenokkerzeel | Fla | 19 | 20 | 17 | 14 | 17 | 15 | |||||||||||
| 42N016 | Dessel | Fla | 24 | 26 | 22 | 22 | 21 | 22 | 20 | 21 | 21 | 20 | 20 | 19 | 20 | 17 | 15 | 15 | 15 |
| 43R202 | Liège (Av M Destenay) | Wal | 16 | 19 | 18 | 16 | NA | 15 | |||||||||||
| 43R240 | Engis | Wal | 27 | 31 | 30 | 31 | 30 | 27 | 24 | 26 | 25 | 23 | 18 | 19 | 18 | 13 | 13 | 14 | 15 |
| 48R236 |
Liége (Aéroport 2) | Wal | 13 | 17 | 15 | ||||||||||||||
| 41B011 | Sint-Agatha-Berchem | Bru | 27 | 28 | 24 | 22 | 21 | 20 | 17 | 18 | 20 | 17 | 14 | 15 | 16 | 14 | 13 | 15 | 14 |
| 42N035 | Aarschot | Fla | 26 | 26 | 23 | 23 | 21 | 21 | 20 | 20 | 21 | 19 | 18 | 19 | 19 | 17 | 15 | 16 | 14 |
| 42N054 | Walshoutem | Fla | 26 | 25 | 23 | 23 | 21 | 21 | 21 | 20 | 21 | 18 | 17 | 19 | 18 | 17 | 14 | 15 | 14 |
| 43H201 | Saint-Nicolas (Liège) | Wal | 33 | 28 | 22 | 22 | 17 | 17 | 16 | 16 | 18 | 15 | 15 | 15 | 16 | 13 | 11 | 12 | 14 |
| 43R222 | Liège (ISSeP) | Wal | 31 | 25 | 22 | 22 | 19 | 19 | 19 | 19 | 21 | 20 | 16 | 17 | 18 | 16 | 13 | 15 | 14 |
| 45R502 | Lodelinsart | Wal | 27 | 26 | 24 | 22 | 17 | 21 | 20 | 19 | 21 | 18 | 16 | 15 | 17 | 13 | 12 | 15 | 14 |
| 45R503 | Charleroi - Parc | Wal | 15 | 18 | 15 | 14 | 15 | 14 | |||||||||||
| 41R012 | Ukkel | Bru | 25 | 25 | 26 | 28 | 24 | 20 | 18 | 17 | 17 | 15 | 14 | 15 | 15 | 13 | 12 | 14 | 13 |
| 43N060 | Havinnes | Wal | 18 | 22 | 21 | 19 | 18 | 20 | 19 | 18 | 16 | 12 | 15 | 15 | 14 | 14 | 14 | 13 | |
| 45R501 | Charleroi | Wal | 29 | 22 | 23 | 26 | 20 | 22 | 22 | 20 | 22 | 19 | 16 | 17 | 17 | 13 | 12 | 14 | 13 |
| 45R511 | Marcinelle | Wal | 23 | 19 | 19 | 21 | 17 | 19 | 18 | 18 | 19 | 16 | 15 | 15 | 16 | 13 | 11 | 15 | 13 |
| 48R215 |
Hermalle | Wal | 16 | 16 | 11 | 12 | 14 | 13 | |||||||||||
| 48R515 |
Charleroi (Aeroport 1) | Wal | 17 | 13 | 12 | 14 | 13 | ||||||||||||
| 43M204 | Angleur | Wal | 24 | 23 | 22 | 23 | 18 | 17 | 19 | 17 | 19 | 13 | 12 | 15 | 15 | 13 | 11 | 12 | 12 |
| 43N064 | Rixensart | Wal | 17 | 12 | 13 | 14 | 12 | ||||||||||||
| 43N073 | Vezin | Wal | 28 | 24 | 17 | 18 | 14 | 16 | 15 | 16 | 19 | 15 | 12 | 15 | 14 | 11 | 11 | 11 | 12 |
| 43R401 | Namur | Wal | 18 | 17 | NA | NA | 12 | 11 | 13 | 12 | |||||||||
| 45R510 | Chatelineau | Wal | 32 | 25 | 21 | 21 | 16 | 20 | 19 | 18 | 20 | 16 | 14 | 17 | 16 | 13 | 11 | 13 | 12 |
| 43N093 | Sinsin | Wal | 21 | 16 | 16 | 16 | 13 | 14 | 14 | 13 | 15 | 12 | 11 | 12 | 10 | 9 | 9 | 11 | 11 |
| 48R237 |
Liège (Aéroport 1) | Wal | NA | 11 | 11 | 10 | |||||||||||||
| 48R516 |
Charleroi (Aeroport 2) | Wal | 15 | 13 | 10 | 10 | 10 | ||||||||||||
| 43N067 | Membach | Wal | 19 | 16 | 18 | 16 | 14 | 13 | 13 | 14 | 11 | 10 | 13 | 11 | 10 | 9 | 10 | 9 | |
| 43N085 | Vielsalm | Wal | 18 | 13 | 12 | 13 | 12 | 11 | 8 | 9 | 12 | 9 | 9 | 9 | 8 | 8 | 7 | 7 | 9 |
| 43N100 | Dourbes | Wal | 19 | 14 | 14 | 15 | 11 | 13 | 13 | 13 | 14 | 11 | 8 | 11 | 10 | 8 | 7 | 9 | 9 |
| 43N113 | Saint-Ode | Wal | 19 | 14 | 12 | 13 | 10 | 11 | 10 | 10 | 12 | 9 | 9 | 9 | 7 | 5 | 5 | 8 | 9 |
| 43N121 | Offagne | Wal | 23 | 17 | 13 | 15 | 12 | 12 | 12 | 13 | 14 | 11 | 13 | 10 | 10 | 8 | 7 | 8 | 9 |
| 43N132 | Habay-La-Neuve | Wal | 19 | 16 | 14 | 15 | 12 | 14 | 13 | 12 | 13 | 11 | 10 | 9 | 10 | 8 | 8 | 9 | 7 |
| 40HR01 | Fla | ||||||||||||||||||
| 40NE02 | Fla | 22 | NA | ||||||||||||||||
| 40RM06 | Fla | 27 | |||||||||||||||||
| 40WV02 | Fla | 15 | |||||||||||||||||
| 40WE07 | Fla | 17 | |||||||||||||||||
| 40SG02 | Fla | 15 | |||||||||||||||||
| 40BV16 | Fla | 16 | |||||||||||||||||
| 40GN99 | Fla | NA | |||||||||||||||||
| 40RL18 | Fla | 18 | |||||||||||||||||
| 41AND3 | Anderlecht | Bru | |||||||||||||||||
| 41WOL1 | Sint-Lambrechts-Woluwe | Bru | 26 | 24 | 22 | 22 | 20 | 22 | 19 | 17 | 19 | 16 | 12 | ||||||
| 40AB01 | Antwerpen (Boudewijnsluis) | Fla | 28 | 29 | 27 | 27 | 23 | 22 | 22 | NA | |||||||||
| 40AB02 | Berendrecht | Fla | 28 | 29 | 26 | 26 | 22 | 22 | 22 | NA | |||||||||
| 40GK06 | Diepenbeek (Zinniastraat) | Fla | 27 | 27 | 25 | 26 | 21 | 21 | 22 | 21 | 24 | NA | |||||||
| 40GK09 |
Genk (Sluis Langerlo) | Fla | 26 | NA | |||||||||||||||
| 40GK11 | Genk (Fabrylaan) | Fla | 21 | 23 | 25 | 24 | 21 | NA | |||||||||||
| 40HK07 | Hemiksem (Rode-Kruispplein) | Fla | NA | NA | |||||||||||||||
| 40KO01 | Kortrijk | Fla | |||||||||||||||||
| 40ML01 | Mechelen (Hombeeksestwg) | Fla | 28 | 27 | 24 | ||||||||||||||
| 40OB02 | Wielsbeke | Fla | 22 | 25 | 22 | 23 | 23 | 23 | 25 | 24 | 23 | 23 | 24 | 21 | NA | ||||
| 40R822 |
Antwerpen (haven) | Fla | NA | 24 | 25 | 26 | 25 | NA | |||||||||||
| 40R833 | Stabroek | Fla | 31 | 32 | NA | ||||||||||||||
| 40RB01 | Ruisbroek | Fla | NA | 21 | NA | ||||||||||||||
| 40SZ01 |
Steenokkerzeel | Fla | NA | 20 | 20 | 19 | 22 | 20 | 19 | 19 | |||||||||
| 40SZ02 | Steenokkerzeel | Fla | 25 | 25 | 25 | 25 | 20 | 21 | 22 | 20 | 21 | 20 | 20 | ||||||
| 40TR01 | Tielrode | Fla | |||||||||||||||||
| 40WZ01 | Lommel | Fla | |||||||||||||||||
| 40ZD01 | Zwijndrecht (Admin Centrum) | Fla | |||||||||||||||||
| 42MW03 | Harelbeke | Fla | 25 | ||||||||||||||||
| 42N045 | Hasselt | Fla | 24 | 22 | 22 | 24 | 21 | 21 | 20 | ||||||||||
| 42R811 | Schoten | Fla | 28 | 26 | 25 | 25 | 22 | 22 | 22 | 22 | 23 | 21 | 20 | 20 | 20 | 18 | NA | ||
| 42R815 | Zwijndrecht | Fla | 30 | 33 | 28 | 29 | 25 | 21 | 22 | 23 | |||||||||
| 42R831 | Berendrecht | Fla | 24 | 25 | 25 | 24 | 23 | 21 | 21 | 21 | 20 | 18 | 20 | ||||||
| 42R832 | Ruisbroek | Fla | 32 | 31 | |||||||||||||||
| 42R841 | Mechelen (Technologielaan) | Fla | 26 | 25 | 24 | 25 | 23 | 22 | 21 | ||||||||||
| 44R731 | Evergem | Fla | 32 | 33 | 28 | 30 | 26 | 24 | 23 | 24 | 26 | 24 | 23 | 23 | 26 | 22 | NA | ||
| 43N063 | Corroy-Le-Grand | Wal | 24 | 22 | 21 | 20 | 17 | 17 | 17 | 17 | 18 | 14 | 12 | 15 | |||||
| 43N066 | Eupen | Wal | NA | ||||||||||||||||
| 43R201 | Liège | Wal | 26 | 21 | 22 | NA | |||||||||||||
| 48R235 | Bierset | Wal | 16 | 14 | 14 |
(*) Calculated with not validated data data till: 13/11/2026
"NA": less than 50% hourly measurements available
italic: between 50% and 90% hourly measurements available
bold: more than 90% hourly measurements available
Running average : average of the daily mean concentrations from 13/11/2025 till 13/11/2026. This period shifts daily with one day. A compliancy check with the EU limit value will only be possible on 31/12