Department Environmental Toxicology

How do aquatic organisms respond to stress?

We investigate how freshwater organisms respond to chemical exposure and other stressors in their environment. In particular, we explore adaptive and toxicological response pathways and develop conceptual and computational models to support knowledge-based risk assessment.

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News

Ksenia Groh tenured as Group Leader Bioanalytics

Bioanalytics group in December 2025, left to right: Mihai-Ovidiu Degeratu, Rafael Reis, Severin Ammann, René Schönenberger, Ksenia Groh (photo: René Schönenberger)
February 3, 2026 –

End of last year, Ksenia Groh was granted tenure as head of Bioanalytics group in our department of Environmental Toxicology (Utox) at Eawag.

End of last year, Ksenia Groh was granted tenure as head of Bioanalytics group in our department of Environmental Toxicology (Utox) at Eawag.
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Utox Department Retreat – A Day of Reflection, Collaborative Activities, and Team Spirit

Retreat of the Department Environmental Toxicology (photo: Gerhard Hartmut)
November 21, 2025 –

On October 31, Utox came together for a one-day retreat — a valuable opportunity to pause, reflect, and connect as a team.

On October 31, Utox came together for a one-day retreat — a valuable opportunity to pause, reflect, and connect as a team.
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Environmental chemist Walter Giger has passed away

Walter Giger 1992
November 19, 2025 –

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...

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.
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Vacancies

Open master projects

 

Seminars

21.01.​2027,