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20 years SETAC GLB: increasing realism of pesticide risk assessment

Pesticides contribute to this reduction of biodiversity in ecosystems. Obviously, environmental risk assessment did not prevent adverse pesticide effects on non-target organisms. This called for an identification of processes that are relevant to extrapolate from simplified investigations to the reality of pesticide effects in the field, one of the prominent research areas at the...

Pesticides diazinon and diuron increase glutathione levels and affect multixenobiotic resistance activity and biomarker responses in zebrafish (Danio rerio) embryos and larvae

BackgroundZebrafish have been increasingly used for monitoring and assessing the effects of different contaminants in the aquatic environments. In the present study, zebrafish embryos and larvae were used to study the effects of the insecticide diazinon and the herbicide diuron in regard to occurrence of oxidative stress-related cellular responses, multixenobiotic resistance (MXR...

Toxicity and neurotoxicity profiling of contaminated sediments from Gulf of Bothnia (Sweden): a multi-endpoint assay with Zebrafish embryos

BackgroundThe toxicological characterization of sediments is an essential task to monitor the quality of aquatic environments. Many hazardous pollutants may accumulate in sediments and pose a risk to the aquatic community. The present study provides an attempt to integrate a diagnostic whole mixture assessment workflow based on a slightly modified Danio rerio embryo acute...

Reviewing the relevance of dioxin and PCB sources for food from animal origin and the need for their inventory, control and management

BackgroundIn the past, cases of PCDD/F and PCB contamination exceeding limits in food from animal origin (eggs, meat or milk) were mainly caused by industrially produced feed. But in the last decade, exceedances of EU limit values were discovered more frequently for PCDD/Fs or dioxin-like(dl)-PCBs from free range chicken, sheep, and beef, often in the absence of any known...

Celebrating 20 years of SETAC German Language Branch (GLB)

This editorial presents the objectives and achievements of the German Language Branch of the Society of Environmental Toxicology and Chemistry Europe (SETAC GLB), a regional branch of SETAC Europe, of the last 20 years. SETAC GLB serves Germany, Austria, and Switzerland, by providing an open forum for research related to ecotoxicology and environmental chemistry, to the...

Towards a holistic and solution-oriented monitoring of chemical status of European water bodies: how to support the EU strategy for a non-toxic environment?

The definition of priority substances (PS) according to the Water Framework Directive (WFD) helped to remove many of these chemicals from the market and to reduce their concentrations in the European water bodies. However, it could not prevent that many of these chemicals have been replaced by others with similar risks. Today, monitoring of the PS-based chemical status according...

Effect-based methods are key. The European Collaborative Project SOLUTIONS recommends integrating effect-based methods for diagnosis and monitoring of water quality

The present monitoring and assessment of the chemical status of water bodies fail to characterize the likelihood that complex mixtures of chemicals affect water quality. The European Collaborative Project SOLUTIONS suggests that this likelihood can be estimated with effect-based methods (EBMs) complemented by chemical screening and/or impact modeling. These methods should be used...

Erratum to: Biodegradability and ecotoxicity of commercially available geothermal heat transfer fluids

Sacher Henner Hollert - Fig. 2 Concentrations of (a) DOC (Dissolved Organic Carbon), (b) 1H-benzotriazole and (c) ethylhexanoic acid during fluid A biodegradation in groundwater at different redox

Impacts of the North American signal crayfish (Pacifastacus leniusculus) on European ecosystems

As a vector of the crayfish plague (Aphanomyces astaci), invasive crayfish pose a major threat to endemic crayfish species in Europe. But do they affect whole ecosystems and fish species as well? A comprehensive review was done using online search engines on current literature to elucidate possible crayfish effects. It showed that they have the potential to decimate benthic...

Temperature and food quantity effects on the harpacticoid copepod Nitocra spinipes: Combining in vivo bioassays with population modeling

The harpacticoid copepod Nitocra spinipes has become a popular model species for toxicity testing over the past few decades. However, the combined influence of temperature and food shortage, two climate change-related stressors, has never been assessed in this species. Consequently, effects of three temperatures (15, 20 and 25°C) and six food regimes (between 0 and 5 × 105 algal...

Life cycle assessment and sustainable engineering in the context of near net shape grown components: striving towards a sustainable way of future production

Usadel 4 Alexandra Wormit 4 Henner Hollert 0 3 0 Institute for Environmental Research, RWTH Aachen University , Worringerweg 1, 52074 Aachen , Germany 1 Chair of Structures and Structural Design, RWTH

Green Toxicology: a strategy for sustainable chemical and material development

Hollert Hollert@bio5.rwth?aachen.de 0 3 Bj?rn Mathes 7 Bennard van Ravenzwaay 6 Thomas Steger?Hartmann 5 Christoph Studer 4 Harald F. Krug 8 0 Institute for Environmental Research, RWTH Aachen University

A versatile and low-cost open source pipetting robot for automation of toxicological and ecotoxicological bioassays

In the past decades, bioassays and whole-organism bioassay have become important tools not only in compliance testing of industrial chemicals and plant protection products, but also in the monitoring of environmental quality. With few exceptions, such test systems are discontinuous. They require exposure of the biological test material in small units, such as multiwell plates...

Dioxin in the Elbe river basin: policy and science under the water framework directive 2000–2015 and toward 2021

A critical review of the last 25 years of dioxin policy in the Elbe river catchment is presented along seven main theses of the River Basin Community (RBC)-Elbe background document “Pollutants” for the Management Plan 2016–2021. In this period, polychlorinated dibenzodioxins/-furans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (dl-PCBs) will play a major role: (i) as new...

Microscale In Vitro Assays for the Investigation of Neutral Red Retention and Ethoxyresorufin-O-Deethylase of Biofuels and Fossil Fuels

Only few information on the potential toxic effectiveness of biofuels are available. Due to increasing worldwide demand for energy and fuels during the past decades, biofuels are considered as a promising alternative for fossil fuels in the transport sector. Hence, more information on their hazard potentials are required to understand the toxicological impact of biofuels on the...