The latest news from Eawag

Eawag researchers are using machine learning to map nitrate pollution in Swiss groundwater. This allows gaps in the measurement network to be filled and the causes of excessive values to be identified. The study is part of a larger project analysing the nitrogen cycle in Switzerland.

Walter Giger was a pioneer in the life cycle analysis of environmental pollutants. He analysed, but also insisted that action be taken when the harmfulness of a substance was proven. His work on toxic nonylphenols attracted worldwide attention. Walter Giger passed away on 6 November 2025. With his passing, Eawag and environmental chemistry have lost an outstanding researcher, but for many he was also a good friend.

A new website and two fact sheets provide up-to-date information on PFAS, the forever chemicals in the environment, and outline possible courses of action.

Eawag scientist Serina Robinson receives the ERC Starting Grant. She is investigating how microbial enzymes bind PFAS.

Groundwater, which provides 80 percent of Switzerland's drinking water, is the focus of the Eawag Info Day taking place today in Dübendorf.