Air Quality index, 08/09/2025 - 22/09/2025

	08/09	09/09	10/09	11/09	12/09	13/09	14/09	15/09	16/09	17/09	18/09	19/09	20/09	21/09	22/09
Conurbation
Brussels	4	4	4	3	3	3	3	4	3	3	3	5	3	3	4
Antwerp	4	4	4	3	3	3	4	4	4	3	3	5	4	4	4
Ghent	4	4	4	3	3	3	4	4	4	4	3	5	4	4	4
Liège	5	3	4	3	4	4	4	4	4	4	3	5	4	4	3
Charleroi	4	4	4	3	3	3	3	3	3	4	2	5	4	3	3
Area
Coast	4	4	4	3	3	4	3	4	4	3	3	5	4	4	4
West-Vlaanderen (south)	4	4	4	3	3	3	4	4	4	4	3	5	4	4	4
Ghent canal area	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Oost-Vlaanderen (south)	4	4	4	3	3	3	4	4	4	4	3	5	4	4	4
Antwerp harbour area	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Kempen - Vlaams-Brabant (east)	4	4	4	3	3	4	4	4	4	4	3	5	4	4	4
Limburg	5	3	4	4	4	4	4	4	4	4	4	5	4	4	4
Region
Brussels	4	4	4	3	3	3	3	4	3	3	3	5	3	3	4
Flanders	4	4	4	3	3	3	4	4	4	4	3	5	4	4	4
Wallonia	4	4	4	3	3	3	3	4	3	4	3	5	4	4	3
Country
Belgium	4	4	4	3	3	3	3	4	4	4	3	5	4	4	4

1	exellent
2	very good
3	good
4	fairly good
5	moderate
6	poor
7	very poor
8	bad
9	very bad
10	horrible