Dr. Solomon Leung graduated from University of Iowa, USA, with a B.A., M.S., and Ph.D. from Chemistry, Chemistry Engineering, and Environmental Engineering, respectively. Prior to working in the academics, he was a senior research engineer with the railroads. Dr. Leung is a full professor in Civil and Environmental Engineering Department at Idaho State University, Idaho, USA where he resides in the last 30 years. Dr. Leung has published more than 185 presentations with abstracts nationally and internationally, 43 peer-reviewed papers, and 83 conference proceedings and book chapters. He has a diversified research interest which includes physicochemical treatments in water and wastewater, environmental risk and toxicological assessment, and cancer therapy.