Hosam Saleh is a professor of radioactive waste management at the radioisotope department, Atomic Energy Authority, Egypt. He was awarded his MSc and PhD degrees in physical chemistry at Cairo University. Saleh has more than 27 years of experience in hazardous waste management with an emphasis on treatment and developing new matrices for the immobilization of these wastes. He is also interested in studying innovative economic and environmentally friendly techniques for the management of hazardous and radioactive wastes. He has authored many peer-reviewed scientific papers and chapters and served as a book editor of several books published by international publishers. He has been selected as among the top 2% of scientists in the world according to the Stanford University reports for 2019, 2020, 2021, 2022, 2023 and 2024.