Search for dissertations about: "contaminated sediment"
Showing result 6 - 10 of 52 swedish dissertations containing the words contaminated sediment.
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6. Biomarkers and bioindicators of hypoxia and sediment toxicity in Monoporeia affinis
Abstract : Two of the most pressing environmental problems in the Baltic Sea are pollution and oxygen deficiency. The aim of this doctoral thesis was to evaluate a set of biomarkers and reproductive variables in the amphipod Monoporeia affinis to test their suitability as indicators of exposure to contaminants and hypoxia. READ MORE
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7. Contaminated sediments: Methods to assess release and toxicity of organic chemical mixtures
Abstract : Bottom sediments around the world store large amounts of legacy hydrophobic organic contaminants (HOCs), forming mixtures of unknown chemical composition. Primary emissions to the environment of many HOCs have been reduced as a consequence of regulation. READ MORE
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8. In situ remediation of contaminated sediments using thin-layer capping : efficiency in contaminant retention and ecological implications
Abstract : Hydrophobic organic contaminants (HOCs) often reside in sediments sorbed to particles, most tightly to particles with high content of organic carbon. If persistent, such pollutants can accumulate in the sediment for many years and constitute a contamination risk for sediment-living organisms and organisms at higher trophic levels, including humans. READ MORE
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9. Mobilization of metals from mining wastes and the resuspension of contaminated sediments
Abstract : In some environmental situations, environmental effects caused by elevated metals resulting from past mining and smelting activities can be observed in nearby receiving water bodies several decades after mine and smelter closure. There is a growing need for managing the hazardous solid wastes such as mining wastes as well as for assessing water quality and for sustainable management of sediment quality. READ MORE
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10. Accumulation and Composition of Gully Pot Sediments under Varying Anthropogenic Activities
Abstract : Gully pots (GPs) are an integral urban drainage component, contributing to conveying runoff from urban surfaces and reducing the load of solids and associated contaminants entering downstream piped systems and receiving waters. Over time, the silting-up of GPs impairs their hydraulic performance, increasing the risk of GP blockage-induced flood events and reducing solids retention performance. READ MORE