Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"Water column concentrations"”.
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Environmental impact of heavy metal pollution in natural aquatic systems
… and to do so with particular emphasis on the water column concentrations. Regulatory levels reflected in water quality criteria or standards are based on water column concentrations. Predicting water column concentrations requires a consideration of the interactions of water column …
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The Aquatic Geochemistry of the Particle-Reactive Radionuclides PO-210, PB-210, and BE-7
… In general, there was a marked elevation in the water column concentrations following a precipitation event and the concentrations decreased with time. The removal residence times of these radionuclides were on the order of several days. Po-210 exhibited similar behavior. Since the atmospheric …
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The influence of sediment nutrient dynamics on the response of lake ecosystems to restoration and climate change
… and recreation, have caused deterioration of water quality in many freshwater lakes worldwide. Apart from anthropogenic impacts, it is also recognized that climate has a direct influence on lake water temperature, nutrient loads, phytoplankton abundance and chemistry. However, little is known …
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The role of colloidal organic matter in the marine geochemistry of PCB’s
… of PCBs with colloidal organic matter in seawater, and the influence of this process on the distribution of PCBs in coastal sediments. Laboratory and field experiments were used to make quantitative estimates of PCB-organic matter sorption, and to test predictions of three-phase equilibrium …