Geochemical evaluation of heavy metal migration in Pb–Zn tailings covered by different topsoils

Zhang, Wei; Alakangas, Lena; Zhong-yi, Wei; Long, Jinghua

doi:10.1016/j.gexplo.2016.03.010

Cited by 33 publications

(9 citation statements)

References 37 publications

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“…e second migration pathway involves the infiltration of metal(loid)s dissolved in mine tailing leachates. e dissolved metal(loid)s infiltrate into the nearby soils with mine tailing leachates during rainfall-runoff processes and migrate with the soil pore water, thus, degrading the adjacent soil and groundwater environment [7,10].…”

Section: Journal Of Chemistrymentioning

confidence: 99%

“…Globally, agricultural soil pollution caused by metal(loid)s from mining activities poses serious environmental concerns. Mine tailings, which are mine wastes derived from mining activities, contain several toxic metal(loid)s [1,2]; thus, mine tailing dumps left untreated near abandoned metal mines are the primary sources of soil and water pollution in the surrounding areas [3][4][5][6][7][8]. Dispersal of metal(loid)s from mine tailing dumps into the ecosystems in the vicinity of such mining sites occurs primarily through two pathways: (1) dispersal of metal(loid)bearing particles by the wind-and rainfall-driven erosion of mine tailings [2,6,9] and (2) infiltration of metal(loid)-bearing leachates into the soil below during rainfall-runoff processes and subsequent migration into nearby soils and groundwater [6,7,9,10].…”

Section: Introductionmentioning

confidence: 99%

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Distinct Dispersion of As, Cd, Pb, and Zn in Farmland Soils near Abandoned Mine Tailings: Field Observation Results in South Korea

Woo

Kang²,

Ji³

et al. 2020

Journal of Chemistry

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We investigated the characteristics of metal(loid) transport and dispersion in agricultural soils near an abandoned metal mine. Topsoil samples were collected from 162 sampling sites in the study area, including 1 in the mine tailing dumps, to analyze the total concentrations of As, Pb, Cd, and Zn. Subsequently, the metal(loid) transport and dispersion characteristics were investigated using geographic information system (GIS) technology. The results of this study clearly demonstrated the variation in the dispersal of As, Cd, Pb, and Zn from the mine tailing dumps to nearby agricultural soils and the element-specific spatial variability in their respective transport and dispersion characteristics. These findings suggested that compared with the migration behavior of Cd, Pb, and Zn, that of As has a farther-reaching impact on agricultural soils owing to its geochemical cycling in the soil and groundwater environment. This impact differed significantly in magnitude from that of the other investigated metals. Therefore, special consideration must be given to the migration behavior of As.

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Section: Journal Of Chemistrymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Distinct Dispersion of As, Cd, Pb, and Zn in Farmland Soils near Abandoned Mine Tailings: Field Observation Results in South Korea

Woo

Kang²,

Ji³

et al. 2020

Journal of Chemistry

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“…The decrease in the pH value could significantly promote the release of heavy metals from tailings [ 17 ]. A large amount of heavy metals would release from the tailings pond during the long-term oxidation process [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Pollution and Ecological Risk Evaluation of Heavy Metals in the Soil and Sediment around the HTM Tailings Pond, Northeastern China

Zhang

Long

Zhang

et al. 2020

IJERPH

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Tailings ponds are a main heavy metal pollution source in mining areas. In this study, the geo-accumulation index (Igeo) and the potential ecological risk index (RI) are used to evaluate the environmental impact of Hongtou Mountain (HTM) tailings pond on the surrounding area. Farmland soil, surface water, and sediment samples in the Hun River around the HTM tailings pond were collected. Heavy metal contents in the samples were analyzed by Inductively Coupled Plasma Mass Spectrometry (ICP-MS). Results show that Cu, Zn, and Cd content in the farmland soil and sediment around the lower reaches of the Hun River (HTM tailings pond section) are obviously higher than the upper reaches. The Igeo values show that the farmland soil near the outlet of the tailings pond is the most polluted area. Cu was classified as moderate–strongly pollution, Zn was moderately pollution, and Cd was strongly pollution. Cd is the major pollutant in farmland soil, the monomial ecological risk (Eri) for Cd is a very high potential ecological risk. The potential ecological risk of sediment in the dry season is more serious than in the raining season. In the dry season, the Igeo index shows strong pollution for Cu and Cd at the confluence of the Hun River and the tributary from the HTM tailings pond, and a moderate–strongly pollution for Zn. Whereas, the Eri index shows that the monomial ecological risk for Zn at H3 is low, and Cu is moderate. The potential ecological risk at H3 is high, and Cd is the main source of the ecological risk around the HTM tailings pond.

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“…The risk of being exposed to heavy metals is linked to direct contact with the soil or dispersion from the polluted site into the environment. The dispersion depends on h ow well metals are retained in the soil, the adsorption mechanisms depending on the soil characteristics and the given metal [7][8][9].…”

Section: Accepted Manuscript 1 Introductionmentioning

confidence: 99%

“…Most of the technologies are based on decreasing the bioavailability and risk of exposure through the immobilisation of heavy metals, e.g. by application of a topsoil to prevent leaching [8,11], addition of phosphate, lime or MgO to chemically stabilise the metals [12,13] or phytoremediation to stabilise the metals in soil or in plants/vegetation [14][15][16]. These technologies are relevant in areas for which future risk of exposure to the soil is minimal, but may fall short for sites situated in present/future sensitive land areas, e.g.…”

Section: Accepted Manuscript 1 Introductionmentioning

confidence: 99%

The relative influence of electrokinetic remediation design on the removal of As, Cu, Pb and Sb from shooting range soils

Pedersen

Jensen

Ottosen

et al. 2018

Engineering Geology

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show abstract

Geochemical evaluation of heavy metal migration in Pb–Zn tailings covered by different topsoils

Cited by 33 publications

References 37 publications

Distinct Dispersion of As, Cd, Pb, and Zn in Farmland Soils near Abandoned Mine Tailings: Field Observation Results in South Korea

Distinct Dispersion of As, Cd, Pb, and Zn in Farmland Soils near Abandoned Mine Tailings: Field Observation Results in South Korea

Pollution and Ecological Risk Evaluation of Heavy Metals in the Soil and Sediment around the HTM Tailings Pond, Northeastern China

The relative influence of electrokinetic remediation design on the removal of As, Cu, Pb and Sb from shooting range soils

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