My research is focused on the environmental behaviour of legacy and new emerging persistent organic pollutants (POPs). Special interest in studies in soil and water systems and to explore the possibility to connect inherent physicochemical properties to transport, transformation and biological uptake processes. In addition, research on fundamental processes of relevance for development of new environmental technologies for contaminated soil and water. Examples of studied classes of contaminants are; dioxins, pharmaceuticals and biocides. The research interests include fate and transport processes of anthropogenic pollutants, novel environmental technologies, multivariate structure-activity modelling, machine learning, and environmental system analysis. The research has been focused on complex environmental and process modelling combining fundamental process understanding and real environmental and process applications. In addition, during recent years, he has been focusing on the complexity of processes in a system perspective in order to obtain more sustainable and greener solutions meeting future societal demands.