SmogRank / Cleaner or dirtier / Belgium

Belgium: cleaner or dirtier, 2024

In Belgium, 24 cities have enough days in both years to compare 2024 with the same days of 2023: 7 got dirtier and 16 cleaner.

The 7 cities that got dirtier, biggest rise first

#	City	2023	2024	Change
1	LochristiFlanders, Belgium	53	55	+1.1 µg/m³+11%
2	StabroekFlanders, Belgium	52	54	+0.7 µg/m³+7%
3	BrusselsBrussels Capital, Belgium	51	52	+0.4 µg/m³+4%
4	Flémalle-HauteWallonia, Belgium	34	37	+0.4 µg/m³+6%
5	AndenneWallonia, Belgium	38	39	+0.3 µg/m³+4%
6	MolFlanders, Belgium	52	52	+0.2 µg/m³+2%
7	ZwijndrechtFlanders, Belgium	53	53	+0.1 µg/m³+1%

The 16 cities that got cleaner, biggest fall first

#	City	2023	2024	Change
1	IzegemFlanders, Belgium	58	55	−1.5 µg/m³−12%
2	MenenFlanders, Belgium	56	54	−1.2 µg/m³−10%
3	CharleroiWallonia, Belgium	42	36	−1.1 µg/m³−15%
4	KortrijkFlanders, Belgium	55	53	−1.1 µg/m³−10%
5	RoeselareFlanders, Belgium	56	54	−1.0 µg/m³−9%
6	BeverenFlanders, Belgium	54	52	−0.8 µg/m³−8%
7	EupenWallonia, Belgium	33	29	−0.8 µg/m³−13%
8	TournaiWallonia, Belgium	48	43	−0.8 µg/m³−9%
9	LiègeWallonia, Belgium	41	37	−0.7 µg/m³−10%
10	MaldegemFlanders, Belgium	54	52	−0.7 µg/m³−7%
11	KoksijdeFlanders, Belgium	52	50	−0.6 µg/m³−6%
12	WillebroekFlanders, Belgium	52	51	−0.6 µg/m³−6%
13	KapellenFlanders, Belgium	53	52	−0.5 µg/m³−5%
14	AntwerpFlanders, Belgium	54	53	−0.5 µg/m³−5%
15	GentFlanders, Belgium	53	52	−0.4 µg/m³−4%
16	MonsWallonia, Belgium	46	45	−0.2 µg/m³−2%

Means in US AQI over the days a city was measured in both years, the same calendar days each year; a city needs 55% of the days paired, and at least 30. The change is in µg/m³ and per cent. How we compare.

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Updated 2026-10-07 12:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.