Radon Policy in Finland, Achievements and Challenges

摘要

Finland is a country of high indoor radon concentrations. Since 1980 the authorityregulations, guidance, radon mapping and research work supporting decision making have beendeveloped continuously. Clear regulations directed to citizens and authorities form the basis forradon policy. Active mapping work and measurement ordered by private home owners hasresulted in 100.000 houses measured. National indoor radon data base forms a good basis fordecision making , communication and research. The number of new houses provided with radonpreventive constructions has increased remarkably. New radon campaigns has increasedmeasurement and mitigation activity. Furher increasing of public awareness is the key challenge.