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Showing 1 to 15 of 15 for “"metals in soil"”.
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A comparison of extraction techniques for the determination of metals in soil
A growing issue in groundwater studies concerns the distinction between anthropological and geological metal contaminants in soil. Current extraction methods, such as hot acid extraction, result in the digestion of the sample matrix which may obscure the origin of the contaminant. Since metals from …
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Levels of Heavy metals in Soil, Water, and Plants and Variation of water Quality Parameters at Vikuge in Kibaha District, Tanzania
The levels of toxic heavy metals ( cadmium, lead, copper, zinc, chromium and iron) were checked in soil, water, plant leaves, fruits and roots obtained at Vikuge in Kibaha, Tanzania. The samples of water from the three wells were taken in triplicate, similar to the samples of plants, fruits and …
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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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The Transfer and Fate of Cadmium and Zinc from Sewage Sludge Amended Agricultural Soil in an Arthropod Food Chain
The re-cycling of sewage sludgeis the most significant entry point for trace metalsin to the agroecosystem. However, the investigation of the transfer and fate of trace metals in soil-plant-arthropod systems in an agricultural context has received little attention, despite the potential threat that …
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Evaluation of Metal Concentration in Water and Soil in the Southern Region of Lake Nacogdoches
<p>The concentrations of metals (Ba, Cd, Co, Cr, Cu, Mn, Ni, Pb, Sr, V, Zn) were investigated in soil and water samples collected over four different sites in the southern part of Lake Nacogdoches over one year from August 2018 through June 2019. Water samples were analyzed using the USEPA method …
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The adsorption of Ni, Cu, Zn, Cd and Pb by δ-MnO₂ and its inclusion in an equilibrium model of metal partitioning in soils
Chemical equilibrium modelling provides a mechanistic tool for the prediction of metal partitioning in soils, which is important in predicting the fate and effects of metals in soil systems. In order to set up an equilibrium model of metal partitioning in soil systems, thermodynamic data for all …
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Effect of Synthetic Chelating Agent Application to Soils on Phosphorus Availability
… unavailable to crops due to immobilization of P in acidic soils through forming chemical bonds with iron (Fe) and aluminum (Al) amorphous oxides. Organic chelating agents form strong bonds with metals in soil and may reduce P binding with Fe and Al. Ethylenediamine tetraacetic acid (EDTA), …
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Environmental risk assessment for an informal e-waste recycling site in Lagos State, Nigeria
It has been recognised that the informal E-waste recycling may pose a risk to human health and the environment, this study aims to evaluate the e-waste contamination and the environmental and human health impact of informal e-waste recycling on the exposed population using the risk assessment …
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Einsatz von Magnetit-immobilisierten Chelatoren zur Extraktion von Schwermetallen aus Boden und Wasser
The aim of this work was to investigate the feasibility of applying functionalized magnetic beads to extract the heavy metals from soil and water for analyzing heavy metals in soil and water and decontaminating the environment polluted by heavy metals. This study was carried out with the as …
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Phytoremediation: a tool for restoring land degraded due to opencast coal mining
… set on a former reclaimed opencast coal spoil in Varteg Hills, South Wales, UK explores the phytoremediation potential of Alnus glutinosa (Alder), Betula pendula (Roth) (Birch) and Larix decidua (Larch), which are commonly used in UK land reclamation, to sequester metals: Zn, Cd, Mn, Pb and Cu, …
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Metal Extraction From Soil Samples By Chelation in a Microwave System
This work involves the combination of chelation and microwave extraction as a technique for extracting adsorbed metals in soil. It has been termed in this work, Chelate Assisted Microwave Extraction (CAME). Unlike other extraction methods, CAME is able to differentiate between anthropological and …
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Assessing water quality in Sultanate of Oman using a newly developed dynamic speciation technique
Rapid increases in coastal developments in the Sultanate of Oman recently, including large ports with industries, crude oil refineries, mining and industrial activities, have often produced point sources of metal and organic contaminations in the local marine systems. Although advances have been …
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Bioaccessibility of metals in Toronto city parks
The purpose of this work was to estimate metals bioaccessibility in soil samples from 15 city parks in Toronto, Ontario, Canada. Total metals concentrations were analyzed to identify contaminants that exceeded the Canadian Council of Ministers of the Environment (CCME) guidelines for …
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Suitability of energy cropping on abandoned metal contaminated farmland.
A great deal of research is being undertaken globally on the viability of alternative energy sources given the potential effects of climate change and increases in oil prices. Energy cropping is one of many emerging technologies for producing renewable energy that is being widely researched around …
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Metal exposure in non-occupationally exposed pregnant women of Western Australia and contribution of environmental sources
Metals pollution is a growing global concern and human exposure has been associated with increased chronic and acute health effects even at low metal concentrations (Hu et al., 2006; US EPA, 2007; Rice et al., 2010; UNEP, 2010). Sensitive members of the population, such as neonates, children and …