Occurrence and potential risk of currently used pesticides in sediments of the Alqueva reservoir (Guadiana Basin)
| Autor: | Marianne Köck-Schulmeyer, Paula Alvarenga, M. López de Alda, Damià Barceló, L. Ledo, Patrícia Palma |
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| Rok vydání: | 2015 |
| Předmět: |
chemistry.chemical_classification
Geologic Sediments Health Toxicology and Mutagenesis Aquatic ecosystem General Medicine Pesticide Risk Assessment Pollution Europe chemistry Bioaccumulation Environmental chemistry Environmental monitoring Water Pollution Chemical Environmental Chemistry Environmental science Organic matter Water quality Pesticides Water pollution Surface water Ecosystem Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Environmental Science and Pollution Research. 22:7665-7675 |
| ISSN: | 1614-7499 0944-1344 |
| DOI: | 10.1007/s11356-015-4390-1 |
| Popis: | The evaluation of sediments, concerning to pesticides, constitutes an important step for the understanding of the principal sources of contamination of the surface water. Hence, the purpose of this study was to evaluate for the first time the occurrence, distribution and risk of pesticides in sediments of the Alqueva reservoir, the largest reservoir in the Europe. For this purpose, the occurrence of 22 pesticides and some of their degradation products was determined in surficial sediments of the Alqueva reservoir. To assess the potential risk on ecosystem, the measured concentrations of pesticides were compared with regulatory and toxicological benchmarks. Of the 22 pesticides analysed, only 8 were detected. Diuron was the pesticide detected in greater concentration, followed by terbuthylazine and chlortoluron. The sediments most polluted by pesticides were from Lucefecit, constituted totally by fine particles ( |
| Databáze: | OpenAIRE |
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