Prof. Emilio Benfenati is head of the Laboratory of Environmental Chemistry and Toxicology at the Mario Negri Institute, Milan, Italy, and has been a researcher at Stanford University, CA. In that period he also had a collaborative research at the Berkeley University, CA. He has gained a considerable experience in the management of international programs, coordinating 13 European projects and participating to 16 others. Many of them are on toxicity and environmental modelling. He has been Member of the National Commission for the evaluation of pesticides, Italian Ministry of Health. His research activities include: computer chemistry, QSAR, toxicity prediction, risk assessment and many others. He is author or co-author of about 200 papers in international journals and books.