RIMAX-Verbundprojekt HoT — Spannungsfeld Hochwasserrückhaltung und Trinkwasserversorgung: Vermeidung von Nutzungskonflikten

Maier, Matthias; Kühlers, Dirk; Brauch, Heinz‐Jürgen; Fleig, Michael; Maier, D.; Jirka, Gerhard H.; Mohrlok, Ulf; Bethge, E.; Bernhart, Hans Helmut; Lehmann, Boris; Hillebrand, Gudrun; Wölz, Jan; Hollert, Henner

doi:10.1007/bf03039170

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…Additionally, high oxygen attrition caused fish mortality in the tributaries which reached alarming proportions (IKzSdE 2004). Consequently, ecosystem services on different levels are affected such as livestock breeding on wetlands, fishery, recreational activities at the coast and rivers and, last but not least, drinking water supply (Maier et al 2005;Kuehlers et al 2009). Wölz et al (2008) related the measured ecotoxicological effects (e.g.…”

Section: Absorption/desorption Of Pollutantsmentioning

confidence: 99%

Anthropogenic pollutants affect ecosystem services of freshwater sediments: the need for a “triad plus x” approach

et al. 2011

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Purpose Freshwater sediments and their attached microbial communities (biofilms) are essential features of rivers and lakes, providing valuable ecosystem services such as nutrient recycling or self-purification which extend beyond the aquatic environment. Anthropogenic pollutants, whether from the industrial era or as a result of our contemporary lifestyles, can negatively affect these functions with hitherto unknown consequences on ecology, the economy and human health.Thus far, the singular view of the involved disciplines such as ecotoxicology, environmental microbiology, hydrology and geomorphology has prevented a deeper understanding of this emerging issue. Main features This paper discusses briefly the progressions and the state-of-the-art methods within the disciplines of concern related to contaminated sediments, ranging from ecotoxicological test systems, microbiological/molecular approaches to unravel changes of microbial ecosystems, up to the modelling of sediment transport and sorption/desorption of associated pollutants. The first bilateral research efforts on contaminated sediments include efforts to assess ecotoxicological sediment risk including sediment mobility (i.e. ecotoxicology and engineering), enhance bioremediation potential (i.e. microbiology and ecotoxicology) or to understand biostabilisation processes of sediments by microbial assemblages (i.e. microbiology and engineering). Conclusions and perspectives In freshwater habitats, acute, chronic and mechanism-specific toxic effects on organisms, shifts in composition, structure and functionality of benthic microbial communities, as well as the obstruction of important ecosystem services by continuously discharged and long-deposited pollutants, should be related to the in situ sediment dynamics. To achieve an improved understanding of the ecology of freshwater sediments and the impairment of their important ecosystem functions by human-derived pollutants, we suggest a "triad plus x" approach combining advanced methods of ecotoxicology, environmental microbiology and engineering science.

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Section: Absorption/desorption Of Pollutantsmentioning

confidence: 99%

Anthropogenic pollutants affect ecosystem services of freshwater sediments: the need for a “triad plus x” approach

et al. 2011

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“…To bridge this gap, a recent project assessed the risk of (extreme) discharge events for drinking water supply at the site of the future flood retention area in Bellenkopf-Rappenwört, near Karlsruhe, Germany (Maier et al 2005). Furthermore, within the framework of the German Excellence Initiative, the "Pathfinder" project Floodsearch at RWTH Aachen University, Germany, has made the first attempt to experimentally link hydrodynamic questions with ecotoxicology to assess the ecological relevance of re-suspension events to aquatic ecosystems ).…”

Section: The Projects Rimax-hot and Floodsearchmentioning

confidence: 99%

Toxizität und Risk Assessment fluvialer Sedimente und Schwebstoffe: Eine kurze Übersicht bisheriger und neuerer Entwicklungen

et al. 2010

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Background In recent years, sediments have become a central topic of scientific and public discussion as an important factor for determining water quality. While the quality of surface waters in Germany has significantly improved during the past years, highly contaminated sediments still create a considerable threat to the quality of several European catchment areas.Main features Here, we summarize different concepts and methods for the assessment of sediment quality and report on some novel integrative test methods for assessing sediment toxicity including contaminant re-mobilization during simulated re-suspension events.Results and discussion Currently, different approaches for assessment of sediment pollution exist. While instrumental chemical analyses are not suitable to accurately describe sediment toxicity, combinations of biological and chemical test procedures and integrated approaches, for example weight-of-evidence studies and effect-directed analysis (EDA), have the potential to identify key contaminants. Inter-disciplinary studies combining hydrodynamic and toxicological aspects coupled to real exposure of aquatic organisms to contaminants are currently being developed.Conclusions Monitoring and assessment of sediment quality are of increasing importance, not only for national legislation but also for the implementation of the European Water Framework Directive (WFD). Integrated approaches for the determination of sediment stability play a key role in the appropriate sediment-monitoring strategies.

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“…Um diese Lücken zu schließen, wird derzeit beispielsweise in einem BMBF-Verbundprojekt (RIMAX-HoT) am Standort des geplanten Rückhalteraums Bellenkopf-Rappenwört (bei Karlsruhe) untersucht, welche Auswirkungen (extreme) Hochwasserereignisse auf die Trinkwasserversorgung haben können (Maier et al 2005). Im Rahmen der Exzellenzinitative wurde an der RWTH Aachen im Rahmen des Pathfinder FLOODSEARCH-Projektes kürzlich begonnen, in einem integrativen hydraulischen und toxikologischen Ansatz die ökologische Relevanz von kurzfristig remobilisierten Sedimenten auf aquatische Systeme zu untersuchen (Wölz et al 2009 (Netzband et al 2007).…”

Section: Sedimentmobilität Und Hochwasserfolgenbewertungunclassified

Strategien zur Sedimentbewertung – ein Überblick

et al. 2009

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RIMAX-Verbundprojekt HoT — Spannungsfeld Hochwasserrückhaltung und Trinkwasserversorgung: Vermeidung von Nutzungskonflikten

Cited by 3 publications

References 6 publications

Anthropogenic pollutants affect ecosystem services of freshwater sediments: the need for a “triad plus x” approach

Anthropogenic pollutants affect ecosystem services of freshwater sediments: the need for a “triad plus x” approach

Toxizität und Risk Assessment fluvialer Sedimente und Schwebstoffe: Eine kurze Übersicht bisheriger und neuerer Entwicklungen

Strategien zur Sedimentbewertung – ein Überblick

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