News - Aquatic Ecotoxicology
08. May 2026, Topic: Aquatic Ecotoxicology , Soil Ecotoxicology , Sediment Ecotoxicology , Risk Assessment
Oekotoxzentrum in SRF Einstein on the risks of PFAS
Risk specialist Alexandra Kroll talks to Katrin Hönegger from SRF Einstein about the significance of current PFAS contamination and assesses the situation.
Read more24. April 2026, Topic: Aquatic Ecotoxicology , Sediment Ecotoxicology
Dynamic pollutant carriers: The quality of suspended matter in Lake Geneva
Suspended matter is an often underestimated but crucial component of aquatic environments. It binds nutrients and pollutants and transports them through the water column. A new study from Lake Geneva shows how significantly the chemical and ecotoxicological quality of these particles can change over time – and what role extreme weather events, tributaries and biological processes play in this.
Read more22. April 2026, Topic: Aquatic Ecotoxicology , Soil Ecotoxicology , Sediment Ecotoxicology , Risk Assessment
Course: One Health - Concept, case studies, challenges and implementation, 23. June 2026
Together with the Swiss Centre for Applied Human Toxicology (SCAHT), we are organising the continuing education course "One Health – Concept, case studies, challenges and implementation". The course can also be attended online.
Read more17. February 2026, Topic: Aquatic Ecotoxicology
Webinar: Quality monitoring in surface waters, 26.2.2026, 15.00-16.30 Uhr
A series of webinars organised by the German Water Chemistry Society highlights the opportunities and possibilities of bioassays for assessing water quality. The Ecotox Centre is hosting this webinar which was already offered in German last October.
Read more13. February 2026, Topic: Aquatic Ecotoxicology
Webinar: Bioassays for drinking water assessment on 24.2.2026, 14.30-16.00
A series of webinars organised by the German Water Chemistry Society highlights the opportunities and possibilities of bioassays for assessing water quality. The Ecotox Centre is hosting the third webinar on the use of effect-based methods for testing of drinking water.
Read more11. February 2026, Topic: Aquatic Ecotoxicology , Risk Assessment
Ecotox Centre in SRF Kassensturz programme on drain cleaners
Cornelia Kienle advised SRF Kassensturz on the evaluation of drain cleaners. These products contain many aggressive substances.
Read more10. February 2026, Topic: Aquatic Ecotoxicology , Risk Assessment
Rare earths pollute Zurich's waters
An investigation in the canton of Zurich has shown that certain rare earth elements can enter bodies of water via wastewater treatment plants in concentrations that pose a risk to aquatic organisms. These elements are gadolinium, which comes from contrast agents used in healthcare facilities, as well as lanthanum and cerium, which are used in a number of wastewater treatment plants to remove phosphorus.
Read more09. January 2026, Topic: Aquatic Ecotoxicology , Risk Assessment
Podcast on PFAS in drinking water
How do PFAS end up in the environment and in drinking water? And what can be done about it? Ecotox Centre scientist Alexandra Kroll and former cantonal chemist Kurt Seiler explain why limit values are not enough and where we need to start earlier.
Read more08. January 2026, Topic: Aquatic Ecotoxicology , Risk Assessment , Soil Ecotoxicology , Sediment Ecotoxicology
Safer receipts without bisphenols
Researchers at EPFL have developed a new formula for thermal paper that is free of harmful bisphenols. According to toxicological studies conducted by the Ecotox Center, the wood-based substitutes used are significantly less problematic than traditional substances.
Read more11. November 2025, Topic: Aquatic Ecotoxicology , Sediment Ecotoxicology , Risk Assessment
Sunscreen and bathing lakes: what happens to UV filters in Swiss lakes and experimental ponds?
UV filters from sunscreens have been detected in Swiss lakes in concentrations that in some cases exceed the provisional environmental quality criteria. In both lakes and experimental ponds, lipophilic UV filters such as octocrylene tend to accumulate at the water surface. Additional data on behaviour and toxicity in sediments is currently being collected in order to refine the quality criteria.
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