Research Interests My position at CEH has allowed me to develop considerable expertise in the fate and risks of chemicals in the environment. This has included: the fate of pesticides in soils and groundwater; the fate of endocrine disrupting chemicals together with pharmaceuticals in rivers; and the fate of nanoparticles in soils and rivers; the fate of microplastics in wastewater and drinking water. Typically my approach is to start by researching the consumption and discharge of the chemical to the environment, assessing its fate, its distribution, its exposure levels and comparing these to toxicity thresholds. This requires an expertise in critical reviews, laboratory and field studies together with modelling.