Master of Science (cand. real.) (1977) in nutrition, University of Bergen and PhD (1996) in biologi, University of Oslo, ’Biotransfomation enzymes as markers of xenobiotic exposure’. Position as Head of R&D at Rumen Chemistry, Oslo, and as a scientist at the University of Bergen, the Norwegian School of Veterinary Science, the Norwegian Plant Protection Institute (now part of Bioforsk), and the Norwegian Veterinary Institute, also former Head of the Section of Chemistry, National Veterinary Institute. Fulbright Scholarship at the National Marine Fisheries Service, Seattle (1979-80), USA and a sabbatical at the Institute of Toxicology, North Carolina State University, USA (1990-91).