Steve’s research interests are in increasing understanding of the factors affecting the bio-availability, ecotoxicology and mobility of nutrients and toxins in soil-crop systems. He is skilled in using stable and radioisotopes to trace the movement and sources of nutrients and contaminants in soils and plants; and in LC-ICP-MS, synchrotron and NanoSIMs to identify the speciation and localisation of trace elements. His latest research focuses on developing rapid techniques for the analysis of soils and plants to predict the transfer of nutrients, including micronutrients, into the food chain, to improve crop yields, human and animal health and nutrition.