Doctor of Philosophy, University Heidelberg, Germany, 1992.
Postdoctoral fellow Korea Institute of Science and Technology, Seoul, 1992—1995. Professor Hallym University, Chuncheon, Republic of Korea, 1995—1997, Wonkwang University, Iksan, Republic of Korea, since 1997. Chairman Bk21 Core-Research Group, Iksan, since 2001.
Member of Korean Society Environmental Toxicology (director since 1998), American Association Cancer Research (associate).
Married Chung-Mi Koo, March 11, 1990. Children: Jae-Yong, Su-Min.