Auflistung nach Autor:in "Düring, Rolf-Alexander"

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Celebrating 20 years of SETAC German Language Branch (GLB)
(2019) Zubrod, Jochen P.; Düring, Rolf-Alexander; Ebke, Klaus P.; Frische, Tobias; Kehrer, Anja
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 sustainable management and regulation of natural resources, to education in environmental sciences, as well as to issues related to research and development, and manufacturing of chemicals and products. The editorial serves as an introduction for an article collection published in the journal Environmental Sciences Europe, providing an overview of the current state of ecotoxicology and environmental chemistry in German-speaking countries and of the main developments and key topics within SETAC GLB. The article collection was developed on the occasion of the 20th anniversary of the regional branch of SETAC Europe. Quelle: https://enveurope.springeropen.com
Harmonization of environmental exposure assessment for veterinary pharmaceuticals and biocides
(2016) Düring, Rolf-Alexander; Wohde, Manuel; Junker, Thomas; ECT Oekotoxikologie GmbH (Flörsheim am Main); Fraunhofer-Institut für Molekularbiologie und Angewandte Oekologie; Deutschland. Umweltbundesamt; Berkner, Silvia; Konradi, Sabine
The spread of veterinary medicinal products (VMPs) and biocides onto agriculturally used areas represents a very important path of entry into the environment for these product groups. Within this literature study public available transformation studies with liquid manure are summarized. Transformation studies were evaluated considering the transformation fate of tested substances, the origin and characteristics of used manure, the experimental setup, the measured parameters and the main outcome of the studies. Test duration throughout the studies ranges from 2 to 374 days and study temperature ranges from 5 °C to 55 °C. As main topics within the 34 found transformation studies the high dependency of transformation on temperature, redox potential, dry matter content and many other parameters is reported. It was further critically analyzed which basic information and parameters were neglected. Unfortunately only six publications give information on the redox potential of the manure. Further, the characterization of the matrix in many cases is inadequate due to missing parameters such as dry matter content, pH, and TOC.Additionally, public available monitoring data of VMPs in manure were collected and evaluated regarding the origin and characteristics of the manure, the minimum and maximum found concentrations, and percentage of identified compounds. Within the 27 found publications, 1568 manure samples were analyzed and 39 different active substances for VMPs and 11 metabolites and transformation products of VMPs could be found in manure. Mainly, the samples were analyzed for sulfonamides, tetracyclines and fluorquinolones. In no case a non-target approach was used. Single active substances were found in some studies with more than 100 analyzed samples in more than 50 % of the analyzed manure samples. This is the case for sulfadimidine, chlortetracycline, oxytetracycline, and tetracycline. It can be concluded that for both transformation studies and monitoring studies a standardized guidance would be beneficial for their applicability in regulatory contexts and also enhance the scientific outcome of these studies.
Validation of a method to determine transformation of chemicals in anaerobic liquid pig and cattle manure for the OECD test guideline programme
(2022) Berkner, Silvia; Anke, Julia Margaretha; Düring, Rolf-Alexander; Walter-Rohde, Susanne
Manure is widely used as a fertilizer and applied to agricultural land. It may contain highly active chemicals like veterinary medicinal products or biocides, which enter into the environment by this pathway. This is recognized by several regulatory frameworks, however, a detailed method for examining the transformation of chemicals in manure was lacking. This article describes the validation of a method for studying the anaerobic transformation of chemicals in pig and cattle liquid manure. Different steps are covered with an emphasis on the validation ring test and the OECD (Organisation for Economic Cooperation and Development) process that led to the recent adoption of the method as OECD Test Guideline (TG) 320. © 2022 The Authors.