Distribution and ecotoxicity of chlorotriazines in the Scheldt Estuary (B-Nl)
| Autor: | Karen Polfliet, Tim Verslycke, Hubert De Brabander, K. Verheyden, Peter Van Caeter, Colin R. Janssen, Herlinde Noppe, Eric De Wulf, An Ghekiere, Els Monteyne |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Geologic Sediments
Neomysis integer Health Toxicology and Mutagenesis Simazine Toxicology chemistry.chemical_compound Rivers Crustacea Ecotoxicology Animals Atrazine Ecosystem Netherlands geography geography.geographical_feature_category biology Herbicides Triazines Estuary General Medicine Terbuthylazine Environmental Exposure Pesticide biology.organism_classification Pollution Mysida chemistry Environmental chemistry Environmental science Ecotoxicity Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Environmental pollution (Barking, Essex : 1987). 147(3) |
| ISSN: | 0269-7491 |
| Popis: | As part of the Endis-Risks project, the current study describes the occurrence of the chlorotriazine pesticides atrazine, simazine and terbutylazine in water, sediment and suspended matter in the Scheldt estuary (B-Nl) from 2002 to 2005 (3 samplings a year, 8 sampling points). Atrazine was found at the highest concentrations, varying from 10 to 736 ng/l in water and from 5 up to 10 ng/g in suspended matter. Simazine and terbutylazine were detected at lower concentrations. Traces of the targeted pesticides were also detected in sediments, but these were below the limit of quantification. As part of an ecotoxicological assessment, we studied the potential effect of atrazine on molting of Neomysis integer (Crustacea:Mysidacea), a resident invertebrate of the Scheldt Estuary and a proposed test organism for the evaluation of endocrine disruption. Following chronic exposure ( approximately 3 weeks), atrazine did not significantly affect mysid molting at environmentally relevant concentrations (up to 1 microg/l). |
| Databáze: | OpenAIRE |
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