Dr. Vernon Somerset has a PhD in Electro-analytical Chemistry and has more than 15 years experience in Environmental Chemistry research. He has worked on various projects focussing on the fate and transport of inorganic and organic pollutants in the environment. In particular, he has looked at the fate of heavy metals from acid mine drainage and fly ash; and pesticides in the environment and its impact on water quality and human health. This also includes investigating different aspects of improving analytical techniques for the detection of different pollutants in water, sediment and biota samples. The development and application of biosensors has played a big role in some of the investigations. For the past five years he has investigated the fate and transport of heavy metals in the freshwater ecosystems of South Africa, further focussing on the bioaccumulation of heavy metals in sediment and biota.