Air Quality index, 04/09/2026 - 18/09/2026

	04/09	05/09	06/09	07/09	08/09	09/09	10/09	11/09	12/09	13/09	14/09	15/09	16/09	17/09	18/09
Conurbation
Brussels	3	4	5	5	4	3	4	3	4	3	2	5	3	3	4
Antwerp	4	4	5	5	4	3	4	3	4	4	2	5	4	3	4
Ghent	4	4	5	4	4	4	5	4	4	4	2	4	4	4	4
Liège	2	4	5	5	4	4	4	4	4	3	2	5	4	4	4
Charleroi	2	4	5	5	4	3	4	4	4	3	2	5	3	4	3
Area
Coast	4	4	5	3	4	4	4	4	4	4	2	4	4	3	4
West-Vlaanderen (south)	4	4	5	4	4	4	5	4	4	4	2	4	4	4	5
Ghent canal area	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Oost-Vlaanderen (south)	3	4	5	5	4	4	4	4	4	3	2	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)	3	4	5	6	4	4	4	4	4	4	2	5	4	4	4
Limburg	3	4	5	6	4	4	4	4	4	3	2	5	4	4	4
Region
Brussels	3	4	5	5	4	3	4	3	4	3	2	5	3	3	4
Flanders	3	4	5	5	4	4	4	4	4	4	2	5	4	4	4
Wallonia	2	4	5	5	4	4	4	4	4	3	2	5	4	4	4
Country
Belgium	3	4	5	5	4	4	4	4	4	3	2	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