I am an Environmental Microbiologist interested in the role of water in the spread and control of water-related diseases. I'm particularly interested in how we can protect human health and aquatic environments. My teaching and research focuses on three main areas: the behaviour of microbiological and chemical contaminants (e.g. viruses, bacteria, pesticides and microplastics) in engineered and natural environments; the provision of safe water and sanitation in low-income settings; and the development and application of novel, low-cost methods for determining sources of contamination. My teaching draws heavily on current and recent research projects investigating water quality in Africa (UNICEF and GCRF), Asia (Gates Foundation and GCRF), and South America (Santander, British Council, Newton Fund).