Dr Carin Sjöstedt is researcher at the Department of Soil and Environment, Swedish University of Agricultural Sciences, Uppsala, Sweden. She completed her PhD studies in Land and Water Resources Engineering at the Royal Institute of Technology in 2012. She recently led the 4-year project “Biochar as a metal trap in soil – mechanisms, modelling and ageing” funded by the Swedish Research Council. She has published 19 papers in various journals. Her teaching disciplines include soil chemistry, and her interests include trace metal speciation, XAS synchrotron experiments, and soil monitoring.