摘要:This paper describes how Denmark has implemented the directive 2013/59/EURATOM, laying down basic safety standards for protection against the dangers caused by exposure to ionising radiation. Ionising radiation develops from radon. Furthermore, the paper describes a procedure to determine the value of the mean year concentration of radon based on short-term measurements. Procedures are described both for radon measurements in the indoor environment of buildings used for accommodation and buildings used for other purposes such as workspace, day-care for children and schools. In addition, the paper argues for the described requirements that short-term measurements should follow in order to be used for estimating the concentration of radon indoors as the mean year value.