The Swiss Centre for Applied Ecotoxicology (Ecotox Centre) detects and assesses the environmental effects of chemicals and develops strategies for minimizing their risk.
The headquarter of the Ecotox Centre and its expertise in aquatic ecotoxicology is hosted by Eawag in Dübendorf.
A second site of the Ecotox Centre, focusing on soil and sediment ecotoxicology, is located at the EPFL.
Bioassays are used to determine how pollutants affect soil organisms and soil health.
Sediments serve as a habitat for many organisms as well as a long-term source of pollutants.