Air Quality index, 26/09/2024 - 10/10/2024
| 26/09 | 27/09 | 28/09 | 29/09 | 30/09 | 01/10 | 02/10 | 03/10 | 04/10 | 05/10 | 06/10 | 07/10 | 08/10 | 09/10 | 10/10 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Conurbation | |||||||||||||||
| Brussels | NA | 3 | 5 | 4 | NA | 4 | 5 | 5 | 7 | 6 | 3 | 4 | 3 | 4 | 5 | 
| Antwerp | 3 | 3 | 5 | 5 | 2 | 5 | 6 | 3 | 4 | 7 | 3 | 4 | 3 | 5 | 5 | 
| Ghent | 3 | 3 | 4 | 4 | 3 | 4 | 5 | 4 | 7 | 6 | 3 | 3 | 3 | 4 | 3 | 
| Liège | 3 | 4 | 3 | 3 | 2 | 2 | 4 | 4 | 5 | 4 | 3 | 3 | 2 | 3 | 3 | 
| Charleroi | 2 | 3 | 4 | 3 | 2 | 3 | 3 | 3 | 5 | 4 | 2 | 3 | 2 | 3 | 3 | 
| Area | |||||||||||||||
| Coast | 4 | 4 | 4 | 3 | 2 | 2 | 4 | 4 | 4 | 6 | 4 | 3 | 3 | 2 | 4 | 
| West-Vlaanderen (south) | 4 | 4 | 4 | 4 | 3 | 3 | 5 | 5 | 8 | 6 | 3 | 3 | 3 | 3 | 2 | 
| Ghent canal area | 3 | 3 | 3 | 3 | 2 | 2 | 5 | 4 | 5 | 6 | 4 | 3 | 3 | 3 | 3 | 
| Oost-Vlaanderen (south) | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 
| Antwerp harbour area | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 
| Kempen - Vlaams-Brabant (east) | 3 | 3 | 3 | 3 | 2 | 2 | 4 | 3 | 3 | 4 | 2 | 2 | 2 | 2 | 2 | 
| Limburg | 3 | 4 | 3 | 3 | 2 | 2 | 4 | 3 | 4 | 4 | 2 | 3 | 4 | 2 | 3 | 
| Region | |||||||||||||||
| Brussels | NA | 3 | 5 | 4 | NA | 4 | 5 | 5 | 7 | 6 | 3 | 4 | 3 | 4 | 5 | 
| Flanders | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 
| Wallonia | 3 | 3 | 3 | 3 | 2 | 2 | 3 | 3 | 4 | 3 | 2 | 2 | 2 | 2 | 2 | 
| Country | |||||||||||||||
| Belgium | 3 | 3 | 3 | 3 | 2 | 3 | 4 | 4 | 5 | 4 | 2 | 3 | 2 | 3 | 3 | 
| 1 | exellent | 
| 2 | very good | 
| 3 | good | 
| 4 | fairly good | 
| 5 | moderate | 
| 6 | poor | 
| 7 | very poor | 
| 8 | bad | 
| 9 | very bad | 
| 10 | horrible |