The data set presents in the form of polygons the breakdown of Belgium in almost 20,000 statistical sectors. The statistical sector is the basic territorial unit resulting from the subdivision of the territory of municipalities by STATBEL since 1970 for the dissemination of its statistics at a finer level than the municipal level. A statistical sector cannot extend over two municipalities and any point in the municipal territory is part of one and the same statistical sector. The 1970 and 1981 versions are shown in analogue format while the 2001, 2011, 2018 and 2019 versions are available in digital vector format. The files can be linked to the data on population, housing and disposable income on the website of Statbel.

The National surveillance of SARS-CoV-2 monitors the SARS-CoV-2 presence in several wastewater treatment plants across Belgium. This dataset contains the results per treatment plant since the beginning of the surveillance is June 2020. The results consist in the SARS-CoV2 concentrations over time as well as other data needed for the interpretations such as the flow rates of the treatment plants and their covering populations.

The National surveillance of SARS-CoV-2 monitors the SARS-CoV-2 presence in several wastewater treatment plants across Belgium. This dataset contains the catchment areas per wastewater treatment plant since the beginning of the surveillance is June 2020.