The Portuguese Society of Environmental Simulation and Risk Assessment (SOPSAR), officially established on the 12th March 2007, is an independent non-profit association, which aims to promote the advancement of science and technology regarding to Environmental Simulation and Risk Assessment, through the exchange of information and experiences in all related fields. SOPSAR is a multidisciplinary and interdisciplinary forum, which intends, in the fulfilment of its mission, to facilitate the professional accomplishment in this area, to promote the development of methodologies and procedures, to foster the information exchange and contacts among all professionals, as well as to encourage the development of standards and codes of practice, to sponsor research and education and to organize seminars and workshops. SOPSAR is a member of the Confederation of European Environmental Engineering Societies (CEEES) more....