Dr. Nikolaos Rousis is a Chemist and works as a Researcher at the National and Kapodistrian University of Athens, Greece, and the Queensland Alliance for Environmental Health Sciences (QAEHS), University of Queensland, Australia. He was awarded his PhD at the Mario Negri Institute for Pharmacological Research in Milan, Italy. His scientific research interests mainly focus on analytical and environmental chemistry and wastewater-based epidemiology. He has published numerous peer-reviewed papers in international journals and book chapters. He is also a reviewer for many international scientific journals.