Nematode-based risk assessment of mixture toxicity in a moderately polluted river floodplain in The Netherlands
| Autor: | Petra C.J. van Vliet, Ron G.M. de Goede |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
indicatoren
forest pollution Water Pollutants heavy metals Waste Management and Disposal Netherlands Trophic level media_common chemistry.chemical_classification geography.geographical_feature_category Ecology grasslands zware metalen Soil Biology PE&RC graslanden communities floodplains Environmental chemistry river waal land van maas en waal Pollution Environmental Engineering Floodplain cadmium media_common.quotation_subject metals soil stroomvlakten Animals Environmental Chemistry Ecotoxicology Organic matter nematoda Bodembiologie Pollutant toxiciteit geography toxicity sensitivity Floods indicators rivers rivieren chemistry waal Environmental science verontreiniging Surface water Bioindicator gelderland |
| Zdroj: | Science of the Total Environment, 406(3), 449-454 Science of the Total Environment 406 (2008) 3 |
| ISSN: | 0048-9697 |
| DOI: | 10.1016/j.scitotenv.2008.06.056 |
| Popis: | Heavy metal polluted soils usually contain mixtures of different metals, whereas legislation is derived from concentrations of individual metals. The mixture toxicity of the Dutch floodplain Afferdensche and Deestsche Waarden was estimated to be high (msPAF ranged from 67¿94%). Analyses of nematode community based bioindicators (Maturity Index, taxonomic diversity, trophic groups, multivariate analysis, DoFT-sentinels) were used to determine the ecological effects of the mixture toxicity in the floodplain soil. None of the indices indicated direct effects of heavy metals on the nematode community. This can be explained by the high adsorption of heavy metals on organic matter and clay particles resulting in a low bioavailability, and questions the estimation of the toxicity based on total concentrations of heavy metals in such environments. The nematode fauna showed great seasonal variation, which most probably was related to the temporal inundation of the floodplain. In uiterwaarden die geregeld onderlopen zijn zware metalen een regelmatig terugkerend probleem. De rivier heeft de metalen, afkomstig van industrieën die zich stroomopwaarts bevinden, afgezet. In het onderzoek werd de gemeenschap van aaltjes in de bodem van de Afferdensche and Deestsche Waarden in kaart gebracht. Aan de hand daarvan probeerden de onderzoekers de impact van zware metalen te meten |
| Databáze: | OpenAIRE |
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