Department of Mass Spectrometry is involved in environmental and nuclear medicine studies. Several of our projects concern natural and man-made radionuclides and the contribution of potentially harmful chemical elements in the environment of Nothern and Southern Hemispheres (mainly high mountain and glacial areas). In particular, deposition of 137Cs, 238, 239, 240Pu, 241Am and mass ratio of 239Pu/240Pu are systematically studied. The Department also focuses on the development of a method for measuring internal radioactive contamination of medical personnel. Furthermore, an investigation on the metabolism of radiolabeled citrates and gluconates may lead to a new technique in oncology. The installation of the new ICP-MS/MS instrument is foreseen in 2021.