News
17. 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 more02. December 2025, Topic:
Webinar on antimicrobial resistances in the environment, 20 January 2026, 4 p.m.
The Ecotox Centre invites you to a webinar with Prof. Ed Topp (INRAE) on Tuesday, 20 January 2026, at 4 p.m. on the topic of ‘The environmental relevance of antimicrobial resistances’.
Read more13. November 2025, Topic: Soil Ecotoxicology , Risk Assessment
Monitoring concept for plant protection products in Swiss soils
The Ecotox Centre is working with the National Soil Monitoring Programme (NABO) / Agroscope and EnviBioSoil on a concept for monitoring pesticide residues in Swiss agricultural soils. The project is part of the federal government's action plan for risk reduction and sustainable use of pesticides. Project manager and soil ecotoxicologist Mathieu Renaud reports on the progress made so far.
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.
Read more07. November 2025, Topic:
Pesticide inputs into Swiss streams
A comprehensive screening of five Swiss watercourses detected 135 pesticides, many of which exceeded ecotoxicological quality criteria. At four locations, there was a high risk to aquatic organisms over a period of several weeks, mainly due to insecticides. Input via wastewater treatment plants also contributed to pesticide pollution.
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