Legal implications of exposure to enhanced natural radiation in the context of the Euratom Directives

The Euratom Directives apply to "enhanced natural radiation" as far as these radiation concerns operations with respect to substances not to "be disregarded as far as radiation protection is concerned" and accordingly it is a subject of the policy of the Member States. In this case application of "enhanced natural radiation" should be subjected to the basic principles of the 1980 Directive. Measures to be taken in national and international context are analysed.