Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Ökotoxikologische Untersuchung von Sedimenten und Schwebstoffen - Abschätzung des Gefährdungspotenzials für Trinkwasser und Korrelation verschiedener Expositionspfade (Acetonischer Extrakt, Natives Sediment) im Bakterienkontakttest und Fischeitest
Autor Ulrich, M.; Schulze, T.; Leist, E.; Glaß, B.; Maier, M.; Maier, D.; Braunbeck, T.; Hollert, H.;
Journal / Serie Umweltwissenschaften und Schadstoff-Forschung
Erscheinungsjahr 2002
Department WANA;
Band/Volume 14
Heft 3
Sprache deutsch;
Keywords acetone extracts; Arthrobacter globiformis; bioavailability; Danio rerio; dehydrogenase assay; drinking water contamination; embryo toxicity; native samples; sediment contact test; suspended matter; whole sediments; Acetonische Extrakte; Arthrobacter globiformis; Bakterienkontakttest; Bioverfügbarkeit; Danio rerio; Embryotoxizität; Gesamtsediment; Schwebstoffe; Trinkwassergefährdung
Abstract The potential risk of ground-water contamination through the infiltration of contaminants originating from suspended matter and sediments deposited within flood retention areas in the Upper Rhine valley, as well as subsequent problems for drinking water production, were analyzed by means of the bacterial dehydrogenase activity (DHA; sediment contact test) assay with Arthrobacter globiformis and in a prolonged embryo toxicity assay using zebrafish (Danio rerio). Since the direct uptake of contaminants from particle-bound sources has usually been assumed to play only a minor role in bioaccumulation, the availability of organic extracts to biota has generally been regarded as being overestimated. In order to confirm or discard this hypothesis, organic (acetone) extracts of recently suspended, freezedried matter, as well as freeze-dried sediments collected from Rhine flood plains (i.e. soil samples) were compared to corresponding native samples in order to screen for the relative availability of particle-bound contaminants. Whereas a significantly higher ecotoxicological burden was observed for some native soil samples, organic extracts of suspended matter proved to be more toxic than corresponding native samples when compared to organic extracts using each test system. With respect to organic extracts, the suspended matter samples were more toxic than soil samples taken from a rarely flooded site. In contrast to the native samples, the rarely flooded soils revealed a higher toxicity than suspended matter. Therefore, organic extracts did not necessarily overestimate the toxicity of soil and suspended matter samples. Moreover, considerable toxicity of particlebound contaminants to both bacteria and fish embryos, even in native samples, corroborate the hypothesis that particle-bound contaminants may be more readily available than is generally assum
ID 6080
dauerhafte UFZ-Verlinkung http://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=6080
Ulrich, M., Schulze, T., Leist, E., Glaß, B., Maier, M., Maier, D., Braunbeck, T., Hollert, H. (2002):
Ökotoxikologische Untersuchung von Sedimenten und Schwebstoffen - Abschätzung des Gefährdungspotenzials für Trinkwasser und Korrelation verschiedener Expositionspfade (Acetonischer Extrakt, Natives Sediment) im Bakterienkontakttest und Fischeitest
UWSF 14 (3), 132 - 137