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

Bioassays evaluate ozonation and post-treatment of wastewater

Post-treatment of wastewater following ozonation with fresh granulated activated carbon results in significant additional purification performance. (Photo: Eaum M/Shutterstock)
May 2, 2022 –

Ozonation is an established treatment process to remove micropollutants from wastewater. However, since unstable toxic reaction products can be formed in the process, biological post-treatment is necessary. Results from the Ecotox...

Ozonation is an established treatment process to remove micropollutants from wastewater. However, since unstable toxic reaction products can be formed in the process, biological post-treatment is necessary. Results from the Ecotox Centre and Eawag show how well different post-treatment methods reduce ecotoxicological effects. The combination of ozonation and activated carbon proved to be the most effective.
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Less animal testing thanks to machine learning

Trout are often used in experiments. Machine learning could be an alternative to fish testing. (Image: istock, edited by Eawag)
April 26, 2022 –

Eawag researchers are using computer algorithms to predict the toxicity of chemicals to fish. Machine learning can help set priorities for experiments and, in the longer term, enable a tremendous reduction of animal testing.

Eawag researchers are using computer algorithms to predict the toxicity of chemicals to fish. Machine learning can help set priorities for experiments and, in the longer term, enable a tremendous reduction of animal testing.
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Webinar about serum-free medium for fish cells

serum-free medium for fish cells - print screen webinar
March 10, 2022 –

Barbara Jozef, a postdoctoral scientist in the Department of Environmental Toxicology, took part in the joint monthly webinar "Serum-free: How and Why?" organized by the American Society for Cellular and Computational Toxicology...

Barbara Jozef, a postdoctoral scientist in the Department of Environmental Toxicology, took part in the joint monthly webinar "Serum-free: How and Why?" organized by the American Society for Cellular and Computational Toxicology (ASCCT) and the European Society of Toxicology In Vitro (ESTIV).
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