Pepijn de Vries gained his MSc in pharmaceutical science. Since 2006, he has worked in risk and hazard assessments of substances in the marine environment, broadening to general impact assessments of human activities in marine environments in later years. He has helped develop a risk assessment framework for produced water discharges by the offshore oil and gas industry. He was also involved in the development and analyses of a framework for assessing the overarching risks resulting from activities by a multitude of sectors. This was done for the EU project ODEMM (Options for Delivering Ecosystem-Based Marine Management).