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 20 of 86 for “"Metal contamination"”.
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Phytoremediation of Metal Contamination Using Salix (Willows)
… and humans. Cadmium (Cd) and lead (Pb) are metal contaminants often found in AMD. In my mine outwash water samples, cadmium and lead concentrations were 19 and 160 times greater than concentrations in control waterways, and 300 and 40 times greater than EPA Aquatic Life Use water quality …
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Recovery of the Mersey Estuary from Metal Contamination
… reservoir remains a repository of historical contamination and still contains high concentrations of trace metals and organic compounds. A combination of hydrodynamic, sedimentary and geochemical processes are responsible for maintaining trace metal concentrations at present-day levels. The …
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Heavy metal contamination in the Black River, Cape Town
… and background concentrations of selected heavy metals were researched and utilized in the effort to quantify heavy metal concentrations derived from anthropogenic sources in the Black River . The findings were intended for use in the aim of producing sediment quality guidelines (SQG) for South …
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Metal contamination and methane oxidising bacteria around a formerly industrialised suburban river.
Heavy metal pollution is a very prominent problem persisting globally at the present time. Many technologies have been put forward to remediate such pollution. Bioremediation is a promising and eco-friendly tool to resolve environmental pollution. Microbes belonging to diverse phylogenetic groups …
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Metal contamination and methane oxidising bacteria around a formerly industrialised suburban rive
Heavy metal pollution is a very prominent problem persisting globally at the present time. Many technologies have been put forward to remediate such pollution. Bioremediation is a promising and eco-friendly tool to resolve environmental pollution. Microbes belonging to diverse phylogenetic groups …
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An assessment of heavy metal contamination of groundwater in George compound of Lusaka
This study investigated groundwater contamination in a suburban area of George Compound located on the outskirts of the city of Lusaka in Zambia. The aim was to assess heavy metal contamination of groundwater and the local people’s awareness about the contamination in the study area. The objectives …
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An assessment of heavy metal contamination of groundwater in George compound of Lusaka
This study investigated groundwater contamination in a suburban area of George Compound located on the outskirts of the city of Lusaka in Zambia. The aim was to assess heavy metal contamination of groundwater and the local people’s awareness about the contamination in the study area. The objectives …
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The impacts of metal-contamination and fine sediment deposition on benthic macroinvertebrate communities
To view the abstract, please see the full text of the document.
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The effects of metal contamination on larval white sturgeon in the upper Columbia River
… and alteration, overexploitation, and contamination. In North America, white sturgeon (Acipenser transmontanus) populations in the upper Columbia River (UCR) face many of the same factors. White sturgeon in this system have been declining for decades due to a lack of recruitment to the …
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Assessing the Risks Posed by Metal Contamination to Environmental and Human Health in Millstream Creek, Canada
Potential metal contamination originating from race cars at an abandoned raceway in the region of Millstream-Langford on Vancouver Island is hypothesized to pose a risk to environmental and human health. This thesis uses Millstream Creek in the City of Langford as the study region for assessing …
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Assessment of heavy metal contamination in flooding area case study at Sungai Pahang and Sungai Kelantan
The news on of heavy metal contamination in environments especially in rivers is increasing nowadays. Uncontrolled urbanization in catchments, industrialization, improper dredging management and agricultural have caused the rivers to faced serious water and sediment pollution problems. Floods speed …
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The Central Stoneroller, Campostoma Anomalum, as an Indicator of Heavy Metal Contamination Using Otolith Age Determination and Growth Analysis
… as a potential bioindicator for heavy metal pollution. This species is a benthic algivore and detritivore that is exposed to heavy metals that accumulate in the sediment. It was hypothesized that young-of-the-year stonerollers from an impacted site would exhibit a reduced growth rate …
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Evaluating the relative importance of stormwater for nutrient and metal contamination to the urban, groundwater dependent Yellagonga Wetlands, through wetland budgeting
… utilised as pollutant sinks, however excessive contamination of wetlands can induce adverse effects to wetland ecology and lead to degradation of its values. Runoff from precipitation mobilizes contaminants from impervious surfaces which are, in some case, transported directly to wetlands …
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Soil microbial community structure and function of agriculturally used Mollisols in the periurban area around Buenos Aires, Argentina, with emphasis on pesticide and heavy metal contamination
… is increasingly concerned about an environmental contamination because of an enhanced application of pesticides and heavy metal containing fertilisers in the course of which organic management systems are getting increasing attention. The green belt is agriculturally used in manifold ways. Besides …
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Farming in the city: how the urban environment affects vegetable crop production, soil heavy metal contamination and nutrient dynamics, produce nutritive quality, and insect dynamics in urban gardens
… probes were used to assess soil nutrients, heavy metal contamination, and soil microbe dynamics. Fruit quality measures included soluble solids, total phenolic content (TPC), and two antioxidant capacity assays (FRAP and DPPH). Insect abundance and diversity was measures using yellow sticky traps …
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Metals Distribution in Roadside Soils and Himalayan Blackberries in Victoria, BC, Canada
AbstractThis study investigated metal contamination in roadside soils and Himalayan Blackberry plants across Greater Victoria, BC. Arsenic (As) and lead (Pb) concentrations in soil samples in some areas exceeded BC Contaminated Sites Regulation soil standards, indicating contamination hotspots …
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Dealing with contaminated land in the ‘New Regime’: an appraisal of the use of plants as biomonitors for metal contamination analysis and risk assessment for a former landfill site in Greenwich
In assessing the health risks posed from heavy metals in a contaminated site, it is important to determine when the contamination occurred and when the metals become available to the surrounding biota. Trees and plants growing in the vicinity of a contaminated site may provide such a historic …
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Heavy metal distribution in Wrigley Head, Moston Brook, Greater Manchester,Northwest England : implications for risk assessment and remediation
Heavy metal contaminated sites pose potential environmental and health problems and represent a great barrier to the beneficial use of contaminated sites. Therefore, the study of heavy metal contamination is a vital knowledge gap which, when filled, will facilitate development of sound management …
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Assessing Biological Recovery of Cladocera from Sudbury-Area Lakes Using Paleolimnology
… experienced widespread acidification and metal-contamination beginning in the late-19th century. These stressors caused extreme damage to regional aquatic systems and their catchments, with aquatic biota experiencing reduced species richness and, in some cases, extirpations. Emission …
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