Luchtkwaliteitsindex, 16/11/2021 - 30/11/2021
| 16/11 | 17/11 | 18/11 | 19/11 | 20/11 | 21/11 | 22/11 | 23/11 | 24/11 | 25/11 | 26/11 | 27/11 | 28/11 | 29/11 | 30/11 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Agglomeratie | |||||||||||||||
| Brussel | 3 | 4 | 3 | 3 | 2 | 3 | 4 | 4 | 4 | 4 | 2 | 3 | 3 | 3 | 2 |
| Antwerpen | 5 | 4 | 4 | 3 | 3 | 2 | 4 | 4 | 5 | 4 | 2 | 3 | 2 | 4 | 2 |
| Gent | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 5 | 3 | 2 | 3 | 3 | 3 | 3 |
| Luik | 2 | 3 | 2 | 2 | 3 | 2 | NA | 4 | 4 | 4 | 2 | 3 | 2 | 2 | 2 |
| Charleroi | 3 | 3 | 3 | 2 | 2 | 2 | NA | 4 | 3 | 5 | 2 | 2 | 2 | 2 | 2 |
| Regio | |||||||||||||||
| Kust | 3 | 3 | 4 | 3 | 3 | 4 | 3 | 3 | 5 | 4 | 4 | 4 | 4 | 4 | 4 |
| zuid West-Vlaanderen | 4 | 3 | 3 | 3 | 3 | 3 | 4 | 5 | 6 | 4 | 3 | 3 | 4 | 4 | 3 |
| Gentse Kanaalzone | 4 | 3 | 3 | 2 | 3 | 3 | 3 | 4 | 5 | 4 | 2 | 3 | 3 | 3 | 3 |
| zuid Oost-Vlaanderen | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| Antwerps Havengebied | 5 | 4 | 4 | 2 | 3 | 2 | 3 | 4 | 5 | 4 | 3 | 3 | 3 | 3 | 2 |
| Kempen - oost Vlaams-Brabant | 4 | 3 | 3 | 3 | 3 | 2 | 2 | 4 | 4 | 4 | 2 | 3 | 2 | 2 | 3 |
| Limburg | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 4 | NA | NA | NA | 3 | 2 | 2 | 3 |
| Gewest | |||||||||||||||
| Brussel | 3 | 4 | 3 | 3 | 2 | 3 | 4 | 4 | 4 | 4 | 2 | 3 | 3 | 3 | 2 |
| Vlaanderen | 4 | 3 | 3 | 3 | 3 | 2 | 3 | 4 | 5 | 4 | 2 | 3 | 2 | 2 | 3 |
| Wallonië | 2 | 2 | 2 | 2 | 2 | 2 | NA | 3 | 3 | 4 | 2 | 3 | 2 | 2 | 2 |
| Land | |||||||||||||||
| België | 3 | 3 | 3 | 2 | 3 | 2 | 3 | 4 | 4 | 4 | 2 | 3 | 2 | 2 | 3 |
| 1 | uitstekend |
| 2 | zeer goed |
| 3 | goed |
| 4 | vrij goed |
| 5 | gewoon |
| 6 | middelmatig |
| 7 | ondermaats |
| 8 | slecht |
| 9 | zeer slecht |
| 10 | verschrikkelijk slecht |