Brussels-Capital Region: location of various monitoring stations sound levels, managed by Brussels Environment. The monitoring stations are dedicated to ambient noise, road, rail and/or air. Indication of the name (corresponding to the location) and the dominant sound source. Measurement results are available via the module WebNoise on the website of Brussels Environment.

Brussels-Capital Region : location of the different surface water quality monitoring sites under the Water Framework Ordonnance and Directive. Surface waters concerned are surface water bodies: Canal, Senne and Woluwe. Monitoring involves a series of chemical, physico-chemical parameters... The code and the name of the monitoring site are given.

Brussels-Capital Region : location of the different surface water biological quality monitoring sites under the Water Framework Ordonnance and Directive. Surface waters concerned are surface water bodies: Canal, Senne and Woluwe. Monitoring involves a series of biological parameters.