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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October 10, 2017

A study just published by Eawag scientists shows that gold and silver each amounting to around CHF 1.5 million a year are lost via effluents and sludge from wastewater treatment plants in Switzerland. The concentrations measured do not pose risks to the environment – and recycling would not be economically worthwhile. However, the study also produced surprising findings on other trace elements in wastewater, including rare earth metals such as gadolinium and the heavy metal niobium. Read more

October 5, 2017

Single-celled bacteria are capable of mixing water layers in lakes – not directly, by movement of their flagella, but by accumulating locally and thus increasing water density. The heavier water then sinks, creating circular currents. Researchers have now observed this process for the first time not just in the laboratory, but in a natural water body – Lake Cadagno (canton of Ticino). Read more

Editor's Highlight - zebrafish and drug discovery

 Alena Tierbach's manuscript on the expression of glutatione S-transferases in developing zebrafish embryos and adult fish has been selected as Highlight by the editor of Toxicological Sciences.

Congratulations Alena!

Link to the Highlight

Latest Publications

Stadnicka-Michalak, J.; Weiss, F. T.; Fischer, M.; Tanneberger, K.; Schirmer, K. (2018) Biotransformation of benzo [a] pyrene by three rainbow trout (Onchorhynchus mykiss) cell lines and extrapolation to derive a fish bioconcentration factor, Environmental Science and Technology, 52(5), 3091-3100, doi:10.1021/acs.est.7b04548, Institutional Repository
Kosak née Röhder, L. A.; Brandt, T.; Sigg, L.; Behra, R. (2018) Uptake and effects of cerium(III) and cerium oxide nanoparticles to Chlamydomonas reinhardtii, Aquatic Toxicology, 197, 41-46, doi:10.1016/j.aquatox.2018.02.004, Institutional Repository
Tierbach, A.; Groh, K. J.; Schönenberger, R.; Schirmer, K.; Suter, M. J. -F. (2018) Glutathione S-transferase protein expression in different life stages of zebrafish (Danio rerio), Toxicological Sciences, 162(2), 702-712, doi:10.1093/toxsci/kfx293, Institutional Repository
Zupanic, A.; Pillai, S.; Coman Schmid, D.; Schirmer, K. (2018) Green algae and networks for adverse outcome pathways, In: Garcia-Reyero, N.; Murphy, C. (Eds.), A systems biology approach to advancing adverse outcome pathways for risk assessment, 133-148, doi:10.1007/978-3-319-66084-4_7, Institutional Repository
Sambalova, O.; Thorwarth, K.; Heeb, N. V.; Bleiner, D.; Zhang, Y.; Borgschulte, A.; Kroll, A. (2018) Carboxylate functional groups mediate interaction with silver nanoparticles in biofilm matrix, ACS Omega, 3(1), 724-733, doi:10.1021/acsomega.7b00982, Institutional Repository