Environmentally damaging levels of illicit drugs have been found in the river running through the Glastonbury Festival site, scientists said. Researchers discovered that during the festival, levels of MDMA and cocaine in the water were so high it could be harming wildlife further downstream, including rare populations of eels. The experts are now urging greenfield festival revellers to use the official toilets provided by organisers, as it is thought the drugs can enter nearby rivers through public urination. Dan Aberg, a Masters student in the School of Natural Sciences, Bangor University, worked with Dr. Daniel Chaplin from the Centre for Environmental Biotechnology (CEB) to measure levels of illicit drugs before, during, and after the Glastonbury Festival when it was last held in 2019. Samples were taken from the Whitelake River both upstream and downstream of the festival site. The study found that MDMA concentrations quadrupled the week after the festival, …