Cities with the cleanest air quality in Belgium

Air pollution is one of the most documented environmental health risks of our time. Fine particles (PM2.5), nitrogen dioxide (NO2), and ground-level ozone affect respiratory health, cardiovascular function, and sleep quality - often without visible signs. Choosing where you live, work, or spend extended time matters more than most people realise.

ClearSpot aggregates air quality data from official open government monitoring networks and the Copernicus Atmosphere Monitoring Service (CAMS) into a normalised score for every scored city. The ranking below reflects monthly averages at default sensitivity thresholds. Cities at the top have consistently lower modelled air pressure - not just on one good day.

The 50 cleanest cities for air quality in Belgium in May 2026 are listed below, scored from 0% (maximum pressure) to 100% (no documented pressure within default thresholds). Click any city to explore the full environmental breakdown and compare with nearby places.

All countries Global city ranking

Country	City	ClearSpot score	air %	View on map
BE	's-Gravenvoeren	100%	0%	View on map
BE	's-Gravenwezel	100%	0%	View on map
BE	Aalter	100%	0%	View on map
BE	Aalterbrug	100%	0%	View on map
BE	Aarschot	100%	0%	View on map
BE	Aartselaar	100%	0%	View on map
BE	Achel	100%	0%	View on map
BE	Alken	100%	0%	View on map
BE	Andrimont	100%	0%	View on map
BE	Appels	100%	0%	View on map
BE	Arendonk	100%	0%	View on map
BE	Arville	100%	0%	View on map
BE	As	100%	0%	View on map
BE	Assebroek	100%	0%	View on map
BE	Assenede	100%	0%	View on map
BE	Attenhoven	100%	0%	View on map
BE	Aubel	100%	0%	View on map
BE	Auderghem	100%	0%	View on map
BE	Averbode	100%	0%	View on map
BE	Baal	100%	0%	View on map
BE	Baardegem	100%	0%	View on map
BE	Baarle-Hertog	100%	0%	View on map
BE	Baelen	100%	0%	View on map
BE	Balen	100%	0%	View on map
BE	Basse Lasne	100%	0%	View on map
BE	Bassevelde	100%	0%	View on map
BE	Bavegem	100%	0%	View on map
BE	Beauvechain	100%	0%	View on map
BE	Beek	100%	0%	View on map
BE	Beernem	100%	0%	View on map
BE	Beerse	100%	0%	View on map
BE	Beerzel	100%	0%	View on map
BE	Begijnendijk	100%	0%	View on map
BE	Bekegem	100%	0%	View on map
BE	Bellem	100%	0%	View on map
BE	Berbroek	100%	0%	View on map
BE	Berg	100%	0%	View on map
BE	Berlare	100%	0%	View on map
BE	Bertem	100%	0%	View on map
BE	Betekom	100%	0%	View on map
BE	Beverlo	100%	0%	View on map
BE	Bierbeek	100%	0%	View on map
BE	Biez	100%	0%	View on map
BE	Bilstain	100%	0%	View on map
BE	Blaasveld	100%	0%	View on map
BE	Blanden	100%	0%	View on map
BE	Blankenberge	100%	0%	View on map
BE	Blauwput	100%	0%	View on map
BE	Bocholt	100%	0%	View on map
BE	Boechout	100%	0%	View on map

How is air quality measured on ClearSpot?

ClearSpot sources air quality data primarily from the Open-Meteo Air Quality API and WAQI (World Air Quality Index), both of which aggregate readings from national government monitoring stations. For each city, we compute a monthly average across PM2.5, PM10, NO2, ozone, and carbon monoxide, then normalise against WHO 2021 guidelines to produce a 0-100% pressure score. A score of 100% means no measured pollutant exceeded WHO thresholds during the reference period. A score of 0% means persistent exceedance across multiple pollutants.

Data is refreshed monthly. For a real-time reading at any precise GPS coordinate, use the ClearSpot live map.