Natural radionuclides in bottled drinking waters produced in Croatia and their contribution to radiation dose

► Levels of 234,238U, 226,228Ra, 210Po and 210Pb in Croatian bottled drinking waters. ► Dose assessment for three groups of population (infants, children and adults). ► The most critical group of population are children (they assessed the highest dose). ► Contribution of each radionuclide to total annual effective ingestion doses. ► A base for further investigation of radioactivity in Croatian drinking water.