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 two treatment stations of wastewater and rainwater. The Brussels-North waste water treatment plant (AQUIRIS commissioned in 2007) and the waste water treatment plant Brussels-South (commissioned in 2000).

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