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 6 of 6 for “"water-quality trends"”.
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Water quality trends in the Eerste River, Western Cape, 1990 - 2005
… study was to investigatge temporal and spatial trends in the water quality of the Eerste River between 1990 and 2005. The study results revealed that the major trends in the water quality of the Eerste River are more spatial than temporal.
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Relationships Between Land Use, Land-Use Change, and Water-Quality Trends in Virginia
… the relationships between land use and surface water quality trends in Virginia. Data from 168 surface water quality monitoring stations throughout Virginia were analyzed for trends for the period of 1978 to 1995. Water-quality data available at these stations included dissolved oxygen …
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A Systems Analysis of Trace Element Cycling in the Great Lakes
The Great Lakes are a globally unique freshwater resource, comprising six lakes (Ontario, Erie, Huron, Superior, Michigan, Lake St. Clair) containing 20% of global surface freshwater resources. The region is known for manufacturing and agriculture; anthropogenic waste steams (industrial effluents, …
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A Water Quality Assessment of the Occoquan Reservoir and its Tributary Watershed: 1973-2002
The Occoquan Reservoir is a public water supply in northern Virginia. The Occoquan Watershed has developed over the years from rural land uses to metropolitan suburbs within easy commuting distance from Washington, DC. Due to this urbanization, the Occoquan Reservoir is especially vulnerable to …
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Occoquan Reservoir and Watershed: A Water Quality Assessment 1973–2019
… systems in the United States. It in an important water supply source for the Northern Virginia area, as well as, an ecological and recreational area. Furthermore, the Occoquan Reservoir protects the water quality of the Chesapeake Bay because it acts as a trap for sediments and pollutants. …
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The variance in the water quality of the lower orange river
… for measuring the status of river ecosystems, water quality and water demand, and can provide early warning for management intervention with regard to water quality and quantity. This can be quite a daunting undertaking for rivers that cross national boundaries such as the Orange River. …