Current status of regulatory identification of radon priority areas in Italy

In 2020, Italy transposed Council Directive 2013/59/Euratom, establishing national criteria for identifying radon priority areas. In 2024, further guidance was provided by the adoption of the national radon action plan. Between 2022 and 2025, priority areas were identified in a part of the country where adequate radon measurement surveys had been carried out. The main choices applied are outlined, and the current situation is presented for the first time, allowing parameters to be quantified, including the number of buildings involved and the expected number of buildings above the reference level within priority areas.