Radon in workplaces

The EU Member States have to implement the new Basic Safety Standards Direc tive (BSS) by May 2000. The Title VII of the Directive applies in particula r to radon in workplaces. The Member States are required to identify workpl aces which may be of concern, to set up appropriate means for monitoring ra don exposures in the identified workplaces and, as necessary, to apply all or part of the system of radiological protection for practices or intervent ions. The BSS provisions on natural radiation are based on the ICRP 1990 re commendations. These recommendations were considered in the Finnish radiati on legislation already in 1992, which resulted in establishing controls on radon in all types of workplaces. In this paper issues are discussed on the practical implementation of the BSS concerning occupational exposures to r adon basing on the Finnish experiences in monitoring radon in workplaces du ring the past seven years.