News
17. May 2023, Topic: Aquatic Ecotoxicology , Sediment Ecotoxicology , Risk Assessment
Bioassays and biomarkers to assess water and sediment quality
The Ecotox Centre used numerous bioassays and biomarkers to investigate the water quality at 17 sites. The ecotoxicological risks were determined on the basis of the bioassays and compared with the risks determined on the basis of chemical measurements. Based on the results, the Centre proposes suitable methods for routine use.
Read more17. May 2023, Topic: Aquatic Ecotoxicology , Risk Assessment
Assessment of water quality with a bioassay battery
A comprehensive study on the assessment of water quality in Switzerland shows that chemical measurements and bioassays complement each other. While risks to fish were detected more sensitively with bioassays, chemical analysis was the more sensitive method for risks to invertebrates from pyrethroid insecticides. The Ecotox Centre proposes a bioassay battery for routine testing.
Read more17. May 2023, Topic: Aquatic Ecotoxicology , Sediment Ecotoxicology , Risk Assessment
Assessment of sediment quality with a bioassay battery
The Ecotox Centre proposes a battery of three bioassays to determine the quality of sediments and to complement chemical analysis. The test with ostracods reacts particularly sensitively and is suitable as a screening method for biological effects.
Read more17. May 2023, Topic: Aquatic Ecotoxicology , Risk Assessment , Sediment Ecotoxicology
Assessment of water quality with biomarkers in brown trout
Biomarkers detect effects of pollutants on wildlife early and sensitively and complement chemical measurements. Further studies on the natural variability of the method are needed.
Read more10. May 2023, Topic: Aquatic Ecotoxicology , Sediment Ecotoxicology , Risk Assessment
Ecotox Centre gets to the bottom of the fish decline in the Suze
The fish population and the number of small animals in the Suze have declined sharply. In order to estimate the pollution of the Suze, the Ecotox Centre examines water and sediment using various bioassays.
Read more20. April 2023, Topic: Aquatic Ecotoxicology , Soil Ecotoxicology , Sediment Ecotoxicology , Risk Assessment
Ecotox Centre webinar with Thomas Backhaus, 24 May 2023, 16:00-17:00
The Ecotox Centre would like to invite you to a webinar with Prof. Thomas Backhaus (University of Göteborg, Sweden) on "Regulatory risk assessment of substance mixtures with the Mixture Assessment Factor" on 24 May 2023 at 16:00.
Read more07. February 2023, Topic: Soil Ecotoxicology , Risk Assessment
New report on determining ecotoxicological reference values for soils
Monitoring of PPP residues in soils is currently being developed within the framework of the Federal Action Plan on Plant Protection Products. The Ecotox Centre provides an overview of possible methods for determining risk-based reference values for PPPs in soils.
Read more24. January 2023, Topic: Aquatic Ecotoxicology , Soil Ecotoxicology , Sediment Ecotoxicology , Risk Assessment
The Ecotox Centre visits the Canton of Vaud
With tailor-made courses, the Ecotox Centre passes on its expertise to cantons that request it - as was the case last week with the canton of Vaud.
Read more20. December 2022, Topic: Risk Assessment , Aquatic Ecotoxicology
Federal Council adopts revised Water Protection Ordinance
On 16 December 2022, the Federal Council approved the revised Water Protection Ordinance defining the criteria for when the authorisation of a pesticide must be reviewed. In this way, drinking water and surface waters will be better protected from pesticides.
Read more06. December 2022, Topic: Risk Assessment
Protecting surface waters and groundwater from new pollutants
The European Commission has proposed to increase the number of water pollutants that have to be strictly controlled in water bodies and groundwater. Numerous pesticides, including glyphosate, pyrethroids and neonicotinoids, some pharmaceuticals and hormones as well as PFAS are to be added to the list.
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