Kirsten Baken works as a toxicologist and researcher on the Chemical Water Quality and Health team. She studied Health Sciences, followed by a PhD and postdoctoral education in human toxicology. She uses the knowledge she acquired at KWR to evaluate the health relevance of contaminants in drinking water (springs) and by-products of purification methods and if possible derive target values for these substances in drinking water. Furthermore, Kirsten applies innovative test methods and risk evaluation techniques (the Threshold of Toxicological Concern (TTC), QSARs, DALYs, in vitro bioassays and Effect Directed Analysis) to evaluate chemical water quality. Kirsten is part of various crisis networks of the government and collaborating knowledge institutes such as the Crisis Expert Team on Environmental and Drinking Water Incidents (CET-md), the Crisis Expert Team on Radiation Incidents (CET-s), and the National Laboratory Network for Terrorist Attacks (LLN-ta). Kirsten is also a project manager for assignments commissioned by drinking water companies, the government and the sector to KWR.