heavy metals in soil Articles
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Heavy Metals in Soil: Treat with Blastox
What are Heavy Metals in Soil? The EPA requires a Toxicity Characteristic Leaching Procedure (TCLP) test to determine if the heavy metals in soil needs to be managed as hazardous or non-hazardous waste. Soils exhibiting hazardous characteristics need to be disposed of at a facility permitted for that material at a high cost. Soils treated in the field prior to off-site disposal can be rendered ...
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Heavy metals in urban soils of Xuzhou (China), Part I: total concentration of heavy metals in soils
Concentrations of Hg, As, Cd, Se, Sb, Zn, Cu, Ni, Pb, Ag, Sn, Cr, Sc, Ba, Li, Bi and V were measured in 21 topsoil samples collected from the city of Xuzhou (China). Lead, Zn, Cd, As, Hg, Sb, Cu, Sn, Ag, Se and Bi have been found to be enriched in the topsoils with respect to the background values of Xuzhou, while Sc, Ba, Li, V, Ni and Cr are nearly in the normal concentration range. These ...
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White clover nodulation index in heavy metal contaminated soils– a potential bioindicator
Received for publication January 10, 2008. The morphological effects of heavy metal stress on the nodulation ability of Rhizobium spp. and growth of white clover (Trifolium repens L.) were studied in the laboratory under controlled conditions. Fourteen topsoils were collected from an area with elevated metal concentrations (Cd, Zn, and Pb). White clover was cultivated using a specialized ...
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Temporal Variability of Selected Heavy Metals in Automobile Soils
Studies on seasonal changes of heavy metal concentration in soils provide vital information for best management options at all times. The study investigated temporal variation in concentration of heavy metals in three towns having automobile service centres in Imo State. The study site is characterized by two major seasons in a year. Heavy metals were found in both arable and automobile soils, ...
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Risk assessment of heavy metal contaminated soil in the vicinity of a lead/zinc mine
Heavy metal contamination of soils through anthropogenic activities is a widespread and serious problem confronting scientists and regulators throughout the world. In this study we investigated the distribution, chemical species and availability of lead, zinc, cadmium and copper in nine surface (0 to 20 cm) soils from near an abandoned lead/zinc mine tailings located in Shaoxing, Zhejiang, China. ...
By IOS Press
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A voltammetric method for determining free metal activities in aqueous solutions. Part 1: direct current voltammetry of Cd, Cu, and Pb
A selective and sensitive method for determining free metal activities (M2+) for Cd, Cu and Pb in aqueous solutions is presented based on the Lingane and DeFord and Hume models. Electrochemical and complexation studies were carried out by direct current voltammetry (DCV) and by metal ion selective electrodes (ISE) as a reference method. A voltammetric equation was tested to evaluate (M2+) by ...
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The influence of past metallurgical activity on the concentration of heavy metals in the soil/grass system in Sibenik (Croatia)
Degree of heavy metal pollution in soil caused by a former Ferromanganese Plant (FMP) and aluminium factory was investigated and the potential of metal mobility and bioavailability was estimated. Elemental concentrations in soil, vegetation and soil extracts were determined by EDXRF. In the nearest vicinity of the factory, soil concentrations ranged as follows: Mn 12,700-342,000 ppm, Zn 200-1090, ...
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Effect of warfare waste on soil: a case study of Gallipoli Peninsula (Turkey)
Gallipoli is a small town on the European side of the Dardanelles Strait, in Turkey. More than 450,000 soldiers gave their lives on the Gallipoli Peninsula (Gallipoli Campaign) over a nine-month period during World War I. In that war, many naval and landing bombs were exploded. The ingredients of these bombs may cause heavy metal contamination in soils. An environmental geochemical investigation ...
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Stability and environmental geochemical profile of toxic heavy metals in soils around a crude oil refinery
Soil samples were taken near oil refinery activities, bulk and fractionated heavy metal contents, as well as other physico-chemical characteristics were measured. The reported results indicate that the enrichment factors of the measured heavy metals were 3.9, 1.8, 1.3, 23.7 and 52.5 for lead, nickel, zinc, cadmium and mercury, respectively. The samples can be considered to be extremely ...
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Measuring heavy metal migration rates in a low-permeability soil
Abstract Heavy metals at high concentrations are often toxic to living organisms, and their environmental toxicity depends on soil properties. It has long been thought that in clay-rich, low-permeability soils, heavy metals are bound to soil particles, and thus there are only few toxicity risks. This study questioned this perception and tested heavy metal mobility in such a soil, of the London ...
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Detecting Arsenic in Soil using Field Portable X-Ray Fluorescence
Abstract Rapid, accurate on site determination of arsenic and heavy metal levels in soil is a powerful tool in efforts to rebuild and revitalize abandoned and under-utilized industrial properties. The EPA is actively spearheading initiatives to encourage assessment, clean-up and re-use of these industrial properties. In the case of heavy metals (often the eight RCRA metals Pb, As, Cd, Cr, Hg, ...
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Relationship of chemical fractions of heavy metals with microbial and enzyme activities in sludge and ash-amended acid lateritic soil from India
The influence of metals, Cd, Cr, Cu, Ni, Pb and Zn, on the microbial biomass and enzyme activities of an amended acid lateritic soil were investigated under field conditions receiving a one-time application of 52 t ha–1 of sludge, coal ash and their mixtures at 1:3, 1:1 and 3:1 proportions, and including control and chemical fertilizer treatment at crop-specific recommended doses. Paddies and ...
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Distribution of chromium, cadmium, nickel and lead in agricultural soils collected from Kazanli-Mersin, Turkey
This study reports total levels of chromium, cadmium, nickel and lead in the agricultural land adjacent a factory producing chromate compounds in Kazanli-Mersin. Surface soil samples were collected from fields around the factory as well as from fields farther away to measure contamination due to aerial transportation and deposition of dust produced in the industrial process. Heavy metals in soil ...
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Heavy Metal Fixation Reagent for Soil - What is Heavy Metal Fixation?
Heavy Metal Fixation can be done by a chemical process that will prevent leaching of metals into the ground water during soil remediation projects. Different reagents are available which can stabilize lead, however different reagents required different cure times and addition of moisture, produce different amount of bulking, and produce material with different strengths, densities and other ...
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Comparing Field Portable X-Ray Fluorescence (XRF) To Laboratory Analysis Of Heavy Metals In Soil
ABSTRACT Field portable x-ray fluorescence (XRF) continues to gain acceptance as a complement to traditional laboratory testing of metal contaminated soil. The quality of data produced by field XRF varies with site conditions, soil composition, and sample preparation. Quality assurance protocols for the field method usually require that a number of field samples be split and sent to a ...
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Heavy metal uptake, its effects on plant biochemistry of wetland (constructed) macrophytes and potential application of the used biomass
Heavy metal pollution in soil and water is becoming a serious problem for agriculture and health. Many plant species have developed some physiological mechanisms that allow their survival in such environments. Here, comparative analysis on absorption of heavy metals and the biochemical changes in aquatic macrophytes like Typha sp. and Pistia sp. were done. The study reveals that the ...
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Trace metal characterization of soils using the Optima 7300 DV ICP-OES
Soil testing helps diagnose soil health and guides in the development of soilspecific and crop-specific remedies. It is an indispensable tool to assure national food safety, nutritional accuracy, maintenance of soil health and enhancement of soil fertility. Based on this analysis, farmers may be advised on soil fertility to make agriculture more productive and sustainable. Micronutrient analysis ...
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Preliminary assessment of heavy metals levels of soils of an oil field in the Niger Delta, Nigeria
Abstract: This communication presents the results of preliminary investigation of the characteristic levels of heavy metals in surface soils of an oilfield in the Niger Delta. The results indicate higher concentration of the following metals: Cd, Pb, Cu; Ni, Zn, Cr, Mn and Hg in soils around the gas plant than the pipeline areas. There is a significant temporal and spatial variation in the ...
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List of 10 Soil Metal Testing Methods
Soil testing has become a must-check item for environmental testing. In recent years, countries around the world have attached great importance to soil testing, which has led to great progress in soil testing technology. At the same time, countries around the world have increased their investment in soil metal testing, using advanced technologies such as spectroscopic analysis technology, ...
By Lifeasible
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Determination of heavy metals in roadside soil from Sapanca Area Highway, Turkey
This paper describes the determination of lead and nickel in soil samples from Kinali-Sakarya highway side, near Lake Sapanca. Lake Sapanca is the drinking water source for Sakarya city and its environment. This highway runs between Ankara and Istanbul and carries a heavy traffic volume. Soil samples were taken from different distances from the highway once every two months for a year. Three ...
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