Title:
SeKT Verbundprojekt: Vergleichende Untersuchungen von limnischen anthropogen belasteten Sedimenten mit unterschiedlichen Sedimentkontakttests.
Authors:
Ute Feiler, Wolfgang Ahlf, Christiane Fahnenstich, Daniel Gilberg, Monika Hammers-Wirtz, Sebastian Hoess, Henner Hollert, Michael Meller, Kerstin Melbye, Helga Neumann-Hensel, Toni Ratte, Thomas-Benjamin Seiler, Denise Spira, Jürgen Weber & Peter Heininger
Year:
2008
Bibl. details:
Poster presentation, 3rd joint annual meeting of the Society of Environmental Toxicology and Chemistry - German-Language Branch e.V. (SETAC GLB) and the German Chemical Society (GDCh) Division Environmental Chemistry and Ecotoxicology, Frankfurt, 23. - 26.September 2008
Keywords:
Risk assessment, sediment contact test, exposure routes, natural sediment, artificial sediment, test battery, oligochaetes, bacteria, fungi, nematodes, fish, higher plants
Abstract
In the joint research project SeKT (sediment contact tests) various limnic sediment contact tests (with bacteria, fungi, nematodes, oligochaetes, fish, and higher plants as test organisms) are compared by the determination of reference conditions, control sediments, and toxicity thresholds. The project shall contribute to a better interpretation of toxicity data within the scope of environmental risk assessment of native sediment samples. In the first phase of the project suitable control sediments (artificial and natural sediments) were defined for the contact tests used in the SeKT project. In the second phase of the project the control sediments were spiked and tested with a test battery. The different uptake routes and different sensitivities of the various test organisms are reflected by the results. In the third project phase – presented here - the respective test systems were examined and compared with regard to their response to 11 anthropogenic contaminated field sediments. Based on the shown toxicity pattern the 11 sediments could be differentiated. The results of these examinations underline the necessity of a test battery for a risk assessment of the toxic potential of sediments.
