As part of the "One Health Day" celebrations, the Center for Environment and Marine Studies (CESAM) and the Fábrica Science Center organize the cycle of Science Cafés "Our Planet, our Health". This cycle aims to address the ideal health for people, animals and the environment. During the month of November, on Thursdays, and in an informal environment, the theme will be addressed by guests who are experts in different areas. Water and Reuse Vânia Calisto, CESAM & Dept. of Chemistry, University of Aveiro Carlos Oliveira, VentilAQUA, Coimbra