Do you need to assess environmental concentrations of chemicals? The Ecotox Centre maintains an extensive database of environmental quality criteria (EQC) and other ecotoxicological threshold values, which we have now expanded to include new information.

Christof Holliger, Professor of Environmental Biotechnology at EPFL, has been closely involved with the Ecotox Centre since it was founded in 2008, initially as part of the direction and the strategic steering committee and later as the representative of EPFL on the host institute council. He retired at the end of February 2025. Here he looks back.