Metal Water-Sediment Interactions and Impacts on an Urban Ecosystem
| Autor: | Lian Lundy, Luciana Alves, Dirk Wildeboer, Michael Revitt |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Geologic Sediments
010504 meteorology & atmospheric sciences diffuse and point source pollution Health Toxicology and Mutagenesis Drainage basin chemistry.chemical_element lcsh:Medicine Zinc 010501 environmental sciences 01 natural sciences Article Rivers London Tributary Environmental monitoring urban receiving waters Ecosystem 0105 earth and related environmental sciences geography Cadmium geography.geographical_feature_category Ecology lcsh:R Public Health Environmental and Occupational Health Water Mercury (element) urban sediment quality chemistry Water Framework Directive Metals Environmental chemistry Environmental science Surface water Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | International Journal of Environmental Research and Public Health, Vol 14, Iss 7, p 722 (2017) International Journal of Environmental Research and Public Health International Journal of Environmental Research and Public Health; Volume 14; Issue 7; Pages: 722 Proceedings of the 14th IWA/IAHR International Conference on Urban Drainage |
| ISSN: | 1660-4601 1661-7827 |
| Popis: | The EU Water Framework Directive (WFD) requirement that all surface water bodies achieve good ecological status is still a goal for many regulatory authorities in England and Wales. This paper describes field and laboratory studies designed to identify metal contaminant loadings and their distributions within water bodies located in the Lower Lee catchment (London, UK). Water and sediment samples have been collected from increasingly urbanised sites on the River Lee and its main tributaries over a two-year period with samples analysed for total concentrations of cadmium, copper, lead, mercury, nickel, tin, and zinc. Complimentary batch tests indicate a positive relationship between aqueous metal concentrations and the batch test-derived sediment metal release data, particularly during wet weather events. Field data indicate a dynamic relationship between water and sediment concentrations with both being capable of exceeding relevant environmental quality standards/sediment quality guidelines at all sites. Mean sediment metal concentrations across all sites were found to be highest for Cu (141.1 ± 111.0 µg g−1), Pb (175.7 ± 83.0 µg g−1), and Zn (499.9 ± 264.7 µg g−1) with Zn demonstrating elevated mean water concentrations (17.2 ± 13.8 µg L−1) followed by Ni (15.6 ± 11.4 µg L−1) and Cu (11.1 ± 17.8 µg L−1). |
| Databáze: | OpenAIRE |
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