News - Risikobewertung

12. June 2018, Topic: Aquatic Ecotoxicology, Soil Ecotoxicology, Sediment Ecotoxicology, Risk Assessment

Successful symposium on bioassays

Successful symposium on bioassays

Last week, more than 90 experts from public authorities, the private sector and science accepted the Ecotox Centre’s invitation.

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24. May 2018, Topic: Aquatic Ecotoxicology, Risk Assessment

Different approaches to assess water quality with bioassays

Different approaches to assess water quality with bioassays

For the regulatory assessment of water quality with bioassays, uniform approaches are necessary. These may only use the EQS of the reference substance or include as many EQS of a substance class as possible.

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18. May 2018, Topic: Aquatic Ecotoxicology, Soil Ecotoxicology, Sediment Ecotoxicology, Risk Assessment

Staff at the Ecotox Centre

Staff at the Ecotox Centre

We welcome two new employees, Janine Wong and Alan Bergmann. Welcome to the Ecotox Centre! And we wish Sophie Campiche every success in her new activities.

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29. March 2018, Topic: Aquatic Ecotoxicology, Soil Ecotoxicology, Sediment Ecotoxicology, Risk Assessment

Ecotoxicology for ZHAW students

Ecotoxicology for ZHAW students

In March 2018, the Ecotox Centre has given its annual introduction to ecotoxicology to prospective biotechnologists.

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31. January 2018, Topic: Aquatic Ecotoxicology, Sediment Ecotoxicology, Risk Assessment

Symposium "Environmental Monitoring with Bioassays" on 5./6. June 2018

Symposium "Environmental Monitoring with Bioassays" on 5./6. June 2018

The use of bioassays to assess water quality has many advantages and the acceptance of bioassays has increased in recent years. On the occasion of its 10th anniversary, the Ecotox Centre organises a symposium on the topic.

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22. December 2017, Topic: Aquatic Ecotoxicology, Risk Assessment

Eawag supports introduction of effect-based environmental quality criteria

Eawag supports introduction of effect-based environmental quality criteria

At the end of November, the Federal Council has sent the new risk-based required limits for biocides, plant protection products and other micro-pollutants within the Water Protection Ordinance in consultation. A new Eawag fact sheet shows why these values are meaningful and necessary.

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24. November 2017, Topic: Aquatic Ecotoxicology, Risk Assessment

Estrogens in surface waters - Screening and risk assessment for Europe

Estrogens in surface waters - Screening and risk assessment for Europe

In the framework of an international project, European water samples were analysed for estrogens using various biological and chemical methods. Bioassays based on cell cultures were shown to be well suited to detect the substances that are to be monitored across Europe.

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24. November 2017, Topic: Aquatic Ecotoxicology, Soil Ecotoxicology, Sediment Ecotoxicology, Risk Assessment

 Info sheet on pyrethroides

Info sheet on pyrethroides

Pyrethroids are among the most frequently used pesticides in the world. For this reason, the Ecotox Centre has published a new info sheet on the emissions, mechanism of action, toxicity and risk of the substances.

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23. November 2017, Topic: Aquatic Ecotoxicology, Risk Assessment

How long to collect water samples?

How long to collect water samples?

If the measured concentration of a substance in surface waters exceeds its quality criterion, the water quality is assessed as poor. But over which time period should the water sample be collected and the concentration be averaged?

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21. November 2017, Topic: Sediment Ecotoxicology, Risk Assessment

Progress in the assessment of sediment quality

Progress in the assessment of sediment quality

Together with eight cantons, the Ecotox Centre has conducted extensive field testing to investigate the comparability of different methods for sampling and sample preparation of sediments.

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