A combined hydraulic and toxicological approach to assess re-suspended sediments during simulated flood events—part II: an interdisciplinary experimental methodology

Cofalla, Catrina; Hudjetz, Sebastian; Roger, Sebastian; Brinkmann, Markus; Frings, Roy M.; Wölz, Jan; Schmidt, Burkhard; Schäffer, Andreas; Kammann, Ulrike; Hecker, Markus; Hollert, Henner; Schüttrumpf, Holger

doi:10.1007/s11368-012-0476-2

Cited by 23 publications

(7 citation statements)

References 85 publications

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“…Interdisciplinary research employing methods at the intersection of hydraulic engineering and ecotoxicology has been shown to be particularly useful in this context (Cofalla et al, 2012;Schüttrumpf et al, 2011). Here, we report on experiments that were conducted to investigate the time-and concentration-dependent uptake of DLCs from sediment suspensions and their effects in juvenile rainbow trout (Oncorhynchus mykiss).…”

Section: Introductionmentioning

confidence: 99%

Towards science-based sediment quality standards—Effects of field-collected sediments in rainbow trout (Oncorhynchus mykiss)

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Towards science-based sediment quality standards—Effects of field-collected sediments in rainbow trout (Oncorhynchus mykiss)

et al. 2015

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“…In context of the interdisciplinary project framework FloodSearch, which was funded by the German excellence initiative, methods of hydraulic engineering and ecotoxicology were experimentally combined. To this end, exposure experiments with contaminated sediments were conducted in (a) static re-suspension tanks or (b) an annular flume, an experimental facility in which rainbow trout ( Oncorhynchus mykiss ) can be exposed under simulated flood-like conditions (Cofalla et al [ 161 ], Hudjetz et al [ 164 ]. Schüttrumpf et al [ 166 ], Wölz et al [ 167 ], Brinkmann et al [ 168 , 170 ]).…”

Section: Scientific Support For Dioxin- and Wfd-related Eu-directivesmentioning

confidence: 99%

“…Furthermore, additional collaborations were established with the Thünen Institute of Fisheries Ecology (Hamburg, Germany), the Fraunhofer Institute for Molecular Biology and Applied Ecology IME (Schmallenberg, Germany), the Swiss Federal Institute for Materials Science and Technology (EMPA; Dübendorf, Switzerland), and the Centre for Fish and Wildlife Health (Bern, Switzerland). The DioRAMA project profited largely from the experiences made during the previously introduced projects FloodSearch and FloodSearch II [ 161 , 166 , 167 ].…”

Section: Scientific Support For Dioxin- and Wfd-related Eu-directivesmentioning

confidence: 99%

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

et al. 2016

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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 priority substances for which environmental quality standards (EQSs) need to be derived (Directive 2013/39/EC); (ii) in the search for innovative solutions in sediment remediation (i.e., respecting the influence of mechanical processes; Flood Risk Directive 2007/60/EC); and (iii) as indicators at the land–sea interface (Marine Strategy Framework Directive 2008/56/EC). In the Elbe river catchment, aspects of policy and science are closely connected, which became particularly obvious in a classic example of dioxin hot spot contamination, the case of the Spittelwasser creek. Here, the “source-first principle” of the first cycle of the European Water Framework Directive (WFD) had to be confirmed in a controversy on the dioxin hot spots with Saxony-Anhalt’s Agency for Contaminated Sites (LAF). At the Spittelwasser site, the move from “inside the creek” to “along the river banks” goes parallel to a general paradigm shift in retrospective risk assessment frameworks and remediation techniques for organic chemicals (Ortega-Calvo et al. 2015). With respect to dioxin, large-scale stabilization applying activated carbon additions is particularly promising. Another important aspect is the assessment of the ecotoxicology of dioxins and dl- PCBs in context of sediment mobility and flood risk assessment, which has been studied in the project framework FloodSearch. Currently, the quality goals of the WFD to reach a “good chemical status” are not met in many catchment areas because substances such as mercury do and others probably will (PCDD/Fs and dl-PCB) exceed biota-EQS values catchment area-wide. So far, relating biota-EQS values to sediment-EQSs is not possible. To overcome these limitations, the DioRAMA project was initiated, which has led to improved approaches for the assessment of dioxin-contaminated sediment using in vitro bioassays and to a robust dataset on the interrelation between dioxins and dioxin-like compounds in sediments and biota.Electronic supplementary materialThe online version of this article (doi:10.1186/s12302-016-0075-8) contains supplementary material, which is available to authorized users.

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“…Consequences include changes to the natural morphological development, the sustainable disturbance of the natural bank and bed dynamics, a deterioration of the water quality, changes to the groundwater dynamics of the floodplains, loss of flooding areas and loss of habitats for aquatic and terrestrial ecosystems [ 1 ]. Contaminants might be adsorbed on fine-grained sediments [ 4 – 6 ] and thereafter transported downstream with the water phase or deposited on the riverbed or on the floodplains from where they might be remobilized by subsequent flood events [ 7 – 9 ]. River modifications at contaminated sites can have negative effects on the distribution of contaminants or positive effects due to the improvement of the chemical and ecological conditions [ 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

A decade of fluvial morphodynamics: relocation and restoration of the Inde River (North-Rhine Westphalia, Germany)

et al. 2018

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BackgroundRelocations and restorations do not only change the ecological passability and sediment continuity of a river but also its flow behavior and fluvial morphodynamics. Sediment transport processes and morphological development can be assessed with field measurements, also taking the transport of sediment-bounded contaminants as a tracer material for fluvial morphodynamics into account. The objective of this study was to determine the morphological development of the Inde River (a tributary of the Rur River in North-Rhine Westphalia, Germany) towards its pre-defined guiding principle after a relocation and restoration in 2005 AD.MethodsThe fluvial morphodynamics of the Inde River were analyzed over a period of almost 15 years taking sediment samples, analyzing echo soundings of the river’s bathymetry and determining the heavy metal content of the sediment as a tracer material for the morphological development.ResultsThe results show that the relocation and restoration of the Inde River initiates new hydrodynamic processes, which cause morphological changes of the river widths, meander belts and channel patterns. The riverbed of the new Inde River has incised into the ground due to massive erosion, which has led to increased fine sediment transport in the downstream direction. The reasons for and consequences of this fine sediment transport are discussed and correlated to the sediment continuity of a river.ConclusionsOverall, the new Inde River has reached its goal of being a natural river as a consequence of the relocation and restoration and has adapted its new conditions towards a dynamic morphological equilibrium.

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A combined hydraulic and toxicological approach to assess re-suspended sediments during simulated flood events—part II: an interdisciplinary experimental methodology

Cited by 23 publications

References 85 publications

Towards science-based sediment quality standards—Effects of field-collected sediments in rainbow trout (Oncorhynchus mykiss)

Towards science-based sediment quality standards—Effects of field-collected sediments in rainbow trout (Oncorhynchus mykiss)

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

A decade of fluvial morphodynamics: relocation and restoration of the Inde River (North-Rhine Westphalia, Germany)

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