News - Sediment Ecotoxicology

18. May 2020, Topic: Aquatic Ecotoxicology, Soil Ecotoxicology, Sediment Ecotoxicology

Ecotoxicity of tire wear particles

Ecotoxicity of tire wear particles

Jedes Jahr gelangen mehrere Tausend Tonnen Reifenabrieb in die Umwelt, die aus einem komplexen Gemisch von Gummipartikeln und Strassenmaterial bestehen und mit zahlreichen Schadstoffen belastet sind. Das Oekotoxzentrum arbeitet daher in einem neuen Projekt daran, die Bioverfügbarkeit und Toxizität von Reifenabrieb besser zu verstehen.

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15. May 2020, Topic: Aquatic Ecotoxicology, Sediment Ecotoxicology, Soil Ecotoxicology, Risk Assessment

TKTD-modelling for dummies

TKTD-modelling for dummies

A milestone has been reached by processing one of the TKTD models for the use of practitioners without modelling experience. With the GUTs model, the mortality can be predicted for a given concentration curve of a chemical.

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14. May 2020, Topic: Aquatic Ecotoxicology, Sediment Ecotoxicology

Invertebrate and microbial communities in contaminated river sediments

Invertebrate and microbial communities in contaminated river sediments

The river sediments of Ardières and Tillet are both polluted with complex substance mixtures. The effect of the contamination with PCB on the oligochaete communities was clearly visible. The effect of the contamination on microbial communities was harder to assess because microbes are influenced by a multitude of environmental factors.

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11. May 2020, Topic: Sediment Ecotoxicology, Aquatic Ecotoxicology

Assessment of sediment quality in artificial canals in Valais

Assessment of sediment quality in artificial canals in Valais

Ecotoxicological bioassays and the assessment of invertebrate benthic communities complement physico-chemical analyses when assessing sediment quality. The sediment quality in three artificial channels in the Valais was severely affected.

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08. May 2020, Topic: Aquatic Ecotoxicology, Soil Ecotoxicology, Sediment Ecotoxicology, Risk Assessment

Fungicidal azoles cause concern

Fungicidal azoles cause concern

In Switzerland, these substances are detected in most samples from water, sediment, soil and organisms. However, a lack of toxicity data for many azoles makes it difficult to assess the risk they pose.

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17. March 2020, Topic: Aquatic Ecotoxicology, Soil Ecotoxicology, Sediment Ecotoxicology, Risk Assessment

COVID-19 Information

COVID-19 Information

Due to the current situation regarding the coronavirus / COVID-19, all Ecotox Centre offices and labs are closed starting 17 March 2020. Employees work from home and can be contacted via e-mail.

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22. November 2019, Topic: Aquatic Ecotoxicology, Sediment Ecotoxicology, Soil Ecotoxicology, Risk Assessment

"Ecotoxicology will continue to gain in importance" - in conversation with Inge Werner

"Ecotoxicology will continue to gain in importance" - in conversation with Inge Werner

The longtime former head of the Ecotox Centre, Inge Werner, handed over management to Benoit Ferrari on 1 September. Here she reflects on the past and future of practical ecotoxicology in Switzerland.

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21. November 2019, Topic: Aquatic Ecotoxicology, Sediment Ecotoxicology, Risk Assessment

Ecotoxicological effects of pesticides in stream sediments

Ecotoxicological effects of pesticides in stream sediments

Pesticides in sediments cause adverse effects on benthic organisms. This was shown by a monitoring study conducted by the Ecotox Centre and Eawag on five streams in agricultural areas. Crustaceans were particularly affected. Concentrations of several insecticides, including chlorpyrifos and the pyrethroid cypermethrin, exceeded effect thresholds, indicating impaired sediment quality.

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19. November 2019, Topic: Aquatic Ecotoxicology, Sediment Ecotoxicology, Risk Assessment

Video tutorial on the L-YES

Video tutorial on the L-YES

A video tutorial shows the preparation and execution of the yeast estrogen screen with lyticase for the detection of estrogenic substances.

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04. November 2019, Topic: Aquatic Ecotoxicology, Sediment Ecotoxicology, Risk Assessment

How do plant production products affect Swiss fish?

How do plant production products affect Swiss fish?

Pesticides detected in Swiss streams pose a risk to the fish living there. Harmful effects on the fish, particularly through sublethal and indirect effects, are possible in the measured concentrations.

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