I am an academic at the Sefako Makgatho Health Sciences University, based in Pretoria, and an honorary academic at the University of KwaZulu-Natal, South Africa. My research interests are in aquatic toxicology, which involves the exploration of the behaviour of metals and microplastics in freshwater environments, and ecological and human health risk assessment. I have used fish and macroinvertebrates as sentinel organisms to investigate the impacts of microplastics and chemical contaminants, and ecological risk assessment. With over 15 years of experience in freshwater ecotoxicology and ecology, I have attracted grants and published over 30 peer-reviewed papers and trained Masters and PhD students in the field.