Air Quality index, 21/09/2025 - 05/10/2025

	21/09	22/09	23/09	24/09	25/09	26/09	27/09	28/09	29/09	30/09	01/10	02/10	03/10	04/10	05/10
Conurbation
Brussels	3	4	4	4	3	2	3	4	4	4	4	4	3	4	3
Antwerp	4	4	4	4	3	3	3	4	4	4	4	4	2	4	4
Ghent	4	4	4	4	3	2	3	4	4	4	4	7	3	4	4
Liège	4	3	3	3	2	2	2	4	3	4	3	4	3	4	4
Charleroi	3	3	3	3	2	2	2	3	4	4	3	4	2	3	3
Area
Coast	4	4	4	4	3	2	3	3	4	2	4	4	3	4	3
West-Vlaanderen (south)	4	4	4	4	3	2	3	4	4	4	4	4	3	4	4
Ghent canal area	2	2	2	2	2	3	3	3	3	2	5	4	2	2	2
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)	4	4	4	4	3	2	3	4	4	4	3	4	3	4	3
Limburg	4	4	4	4	3	2	3	4	4	4	3	4	3	4	4
Region
Brussels	3	4	4	4	3	2	3	4	4	4	4	4	3	4	3
Flanders	4	4	4	4	3	2	3	4	4	4	4	4	3	4	4
Wallonia	4	3	3	3	2	2	2	3	4	4	3	4	2	4	3
Country
Belgium	4	4	4	3	2	2	3	4	4	4	3	4	3	4	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