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 groundwater quality monitoring sites managed by Brussels Environment and which results are transmitted through the reporting to Europe (under Article 8 of the Water Framework Directive). Indication of the analyzed water body, the European Code and the Brussels code of the monitoring site. Distinction between two types of monitoring: surveillance monitoring for all groundwater bodies (type_monitoring = 1) and operational monitoring for groundwater bodies identified as being at risk of failing to achieve the objectives of good status (type_monitoring = 2)

Brussels-Capital Region: Delineation of the Brussels agglomeration, in accordance with the directive 91/271/EEC concerning urban waste water treatment. The agglomeration is there defined as "an area where the population and/or economic activities are sufficiently concentrated for urban waste water to be collected and conducted to an urban waste water treatment plant or to a final discharge point". It corresponds to the two collecting basins of the waste water treatment plants of Brussels-North and Brussels-South.

Brussels-Capital Region: Delineation of the Brussels agglomeration, in accordance with the directive 91/271/EEC concerning urban waste water treatment. The agglomeration is there defined as "an area where the population and/or economic activities are sufficiently concentrated for urban waste water to be collected and conducted to an urban waste water treatment plant or to a final discharge point". It corresponds to the two collecting basins of the waste water treatment plants of Brussels-North and Brussels-South.

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 three areas of limitation of aircraft noise defined by the order of the Government of the Brussels-Capital Region of 27 May 1999 on the fight against the noise generated by air traffic.

Brussels-Capital Region : location of the different groundwater quality monitoring sites managed by Brussels Environment and which results are transmitted through the reporting to Europe (under Article 8 of the Water Framework Directive). Indication of the analyzed water body, the European Code and the Brussels code of the monitoring site. Distinction between two types of monitoring: surveillance monitoring for all groundwater bodies (type_monitoring = 1) and operational monitoring for groundwater bodies identified as being at risk of failing to achieve the objectives of good status (type_monitoring = 2)

Brussels-Capital Region: A supply zone is a geographically defined area within which water intended for human consumption comes from one or more sources and within which water quality may be considered as being approximately uniform.

Brussels-Capital Region : this directive has as an aim the prevention of the major accidents implying of dangerous substances and the limitation of their consequences for the man and the environment, in order to ensure in a coherent and effective way in all the country of the high levels of protection. The geographical data file SEVESO consists of several classes of objects which make it possible to locate all the SEVESO sites on the territory of the area of Brussels.

Brussels-Capital Region: localization of the discharge points of the two treatment stations of wastewater and rainwater of the Brussels agglomeration.