

Mr. Andres Rossini is Associate Professor of Cell Biophysics, Biostatistics and Health Physics at the University of Buenos Aires. He graduated in Biological Sciences and post graduated in Radiation Protection and Safety of Radiation Sources from the Faculty of Engineering at the University of Buenos Aires, Argentina. He is currently completing his PhD studies at the Faculty of Medicine.
Mr. Rossini also worked as Associate Professor of Biophysics and Biological Chemistry at the Faculty of Medicine of the Interamerican Open University and as Associate Professor of Human Physiology and Biophysics at the School of Medicine of the University of Morón.
Mr. Rossini is Assistant manager at the Nuclear Regulatory Authority of Argentina for the Biodosimetry, Radiopathology and Internal Dosimetry sectors, Further he is teaches Radiobiology in the Postgraduate Educational Course in Radiation Protection and the Safety of Radiation Sources sponsored by IAEA and the Nuclear Regulatory Authority for the countries of Latin America and the Caribbean. He is a member of the executive board of the Argentine Society of Radiation Protection.
Mr. Rossini participated in several international task groups representing the Nuclear Regulatory Authority of Argentina, and he is a contributing writer of the UNSCEAR expert group on Second Primary Cancer after Radiotherapy.
Mr. Rossini has been alternate representative of Argentina to UNSCEAR since the seventy-first session in 2024 and representative since the seventy-second session in 2025.

Marcela Ermacora is a Senior Adviser at the Argentine Nuclear Regulatory Authority (ARN).
Ms. Ermacora has a degree in Chemical Sciences, with postgraduate studies in Radiological Protection, Nuclear Safety and Project Management. Since 2000, she has worked at ARN, on issues related to safeguards, nuclear non-proliferation, licensing and control of radioactive facilities and project management in radiation protection and nuclear safety areas. She was president of the ARN's Advisory Council on Radioisotope and Ionizing Radiation Applications and alternate member of the IAEA's Radiation Safety Standards Committee (RASSC). She also participated as lecturer in the postgraduate educational course in radiation protection and the safety of radiation sources, sponsored by the IAEA and the Nuclear Regulatory Authority, and at other courses related to radiation safety.
Among other functions, she is currently Vice-President of the Ibero-American Forum of Radiological and Nuclear Regulatory Agencies (FORO) Executive Technical Committee, National Coordinator for IAEA’s Radiation Safety Information Management System (RASIMS), and has been involved in the development of FORO projects and other international cooperation projects both as a participant and in lead roles. She is also a member of the Argentine Radiation Protection Society.
Ms. Ermacora joined the Argentine delegation to UNSCEAR at the 62nd session in 2015, and has since been an alternate representative. She is also Argentine’s National Contact Person for the UNSCEAR Global Survey of Radiation Exposure and contributed as a member of the Expert Group to the evaluation of medical exposure to ionizing radiation.

Ms. Marina Vázquez is a medical doctor and specialist in Cardiology, Legal Medicine, and Radiation Protection and Safety of Radiation Sources. She graduated from the Faculty of Medicine at the University of Buenos Aires in 1995 and completed postgraduate training in cardiology, radiation protection (UBA/IAEA), and emergency medical response. She also undertook advanced training in radiation emergency medicine at REAC/TS (U.S. Department of Energy).
She served as a Supervising Physician at SAME (Emergency Medical Care System of Buenos Aires) from 2002 to 2005 and has worked at the Bernardino Rivadavia Hospital Emergency Department since 2004. She has been a medical advisor to the Nuclear Regulatory Authority since 2006 and served as the national liaison to the WHO's REMPAN network from 2008 to 2016.
Ms. Vázquez teaches in various academic programs, including the Radiation Protection Specialist Career (UBA/IAEA), the Basic Radiation Protection Course, and the Toxicology program at UBA. Since 2023, she has directed the Diploma in Radiomedicine and Radiological Emergencies at the Faculty of Medicine.
Ms. Vázquez is also involved in training first responders to radiological emergencies and has contributed to educational materials, workshops, and publications on the health effects of ionizing radiation, both nationally and internationally.
Ms. Vázquez is the alternate representative of Argentina since the 72nd session of UNSCEAR in 2025.