In this paper, we discuss the research that the Environment and Health research team at the Flemish Department of Environment & Spatial Development conducts in order to measure human exposure to certain factors via sensors. Those particular factors were chosen mainly because they are part of themes around
which the Flemish Department can make policy. We will consider three ongoing cases: measuring the quality of the indoor environment in different types of semi-public locations (such as schools, residential care centres, cultural centres,…), measuring radiofrequency radiation from fixed transmitting antennas in urban environments and measuring noise pollution. Partnering with international research & development organizations such as IMEC (Interuniversity Microelectronics Centre) and VITO (Flemish Institute for Technological Research), they supplied us with innovative and high-quality sensor technology. The sensors
can transmit their measurement data in real time and participating parties can track the data on dashboards allowing immediate feedback and action when necessary. The results are intended to feed further research. Although not all case studies are equally advanced, we will conclude each one with possible policy actions.