Speciation and environmental risk assessment of heavy metals in soil from a lead/zinc mining site in Vietnam

Vuong, Xuan Truong; Vu, Lam Dinh; Duong, Anh Tuan; Duong, Hanh Thi; Hoang, Thai; Luu, M. N. T.; Nguyen, Thanh Nga; Nguyen, Van Duy; Nguyen, Thị Thu Hien; Van, Huu Tap; Minh, Tu Binh

doi:10.1007/s13762-022-04339-w

Cited by 15 publications

(11 citation statements)

References 42 publications

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“…Frontiers in Earth Science frontiersin.org compared with the soil quality limits, Pb, Zn, Cd, and As are critical heavy metals in soils in the vicinity of the mine tailing areas that require more attention, while Cr, Ni, and Cu exhibited the lowest risk levels. This finding is similar to those of other reports showing pollution indices of Pb, Zn, and Cd ranging from high to intense contamination, compared to mild and moderate pollution levels for other heavy metal pollution levels for soils from lead/zinc mining sites in Vietnam (Vuong et al, 2022).…”

Section: Figuresupporting

confidence: 91%

Environmental contamination characteristics of heavy metals from abandoned lead–zinc mine tailings in China

et al. 2023

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China holds large-scale lead–zinc mineral resources; however, mining activities often cause severe contamination by heavy metals. This study systemically assessed contamination by eight heavy metals (Cu, Zn, Cd, Pb, Cr, Hg, Ni, and As) in mine tailings, soil, and groundwater from 27 contaminated sites across China. Regarding mine tailings, 1% of the mine tailing samples were hazardous waste and 20% were class II non-hazardous waste. Regarding soil, Zn and Pb showed the highest mean concentrations, at 5574.67 mg/kg and 2034.88 mg/kg, respectively. The indexes of geo-accumulation (Igeo) of eight heavy metals ranged from −3.62 to 7.67, while Zn, Pb, and Cd showed the highest environmental risk levels as the priority pollutants. The contamination levels of these heavy metals in groundwater were generally in the order of Zn>As>Pb>Ni>Cd>Cu>Hg>Cr. In this study, 20% of the soil and 10% of the groundwater samples exceeded the corresponding quality limits. The content of heavy metals in soil, groundwater, and mine tailing were positively correlated, demonstrating the main pollution source and transport paths. The pollution levels of heavy metals in soil and groundwater were listed in the foremost and moderate positions compared with similar sites from other countries, respectively. These results may help determine the pollution levels of lead–zinc mining regions and direct the remediation activities of target sites to support the environmental management of abandoned mining and tailing waste in China.

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Section: Figuresupporting

confidence: 91%

Environmental contamination characteristics of heavy metals from abandoned lead–zinc mine tailings in China

et al. 2023

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“…The amount of Pb and Zn in the soil sample was 3369.5 ± 55.6 and 2414.1 ± 51.6 mg kg −1 , respectively, but biochar and apatite had very few of these elements (table S4). This finding suggests these materials were suitable for heavy metal treatment in multi-contaminated soil [18][19][20]34]. According to Vietnamese Regulation (2015) [42], the acceptable thresholds for Pb and Zn levels in agricultural soil are 70 and 200 mg kg −1 , respectively.…”

Section: Physicochemical Properties Of the Studied Soil And Materialsmentioning

confidence: 98%

“…Hence, it becomes imperative to identify an appropriate method for remediating heavy metals in the contaminated soil of this region, particularly in agricultural areas. Previous research has scarcely explored the utilization of agricultural waste-derived biochar in conjunction with apatite to immobilize heavy metals in contaminated soil in this region [18][19][20]34]. However, there is a scarcity of studies that comprehensively investigate the impacts of biochar derived from various biomass sources and its combination with apatite.…”

Section: Introductionmentioning

confidence: 99%

“…The Pb/Zn mining area in Hich village, in Dong Hy district, Vietnam, has been reported in preceding studies as highly heavy metal contamination in the soil caused by human activities [18][19][20]34]. Hence, it becomes imperative to identify an appropriate method for remediating heavy metals in the contaminated soil of this region, particularly in agricultural areas.…”

Section: Introductionmentioning

confidence: 99%

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Lead and zinc chemical fraction alterations in multi-metal contaminated soil with pomelo peel biochar and biochar/apatite incubation

Nguyen,

Vu,

Nguyen

et al. 2024

Mater. Res. Express

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The issue of heavy metal soil contamination is widespread, and the negative effects of heavy metals on the ecosystem depend on their chemical speciation in contaminated soil. Pomelo peel-derived biochar produced at 300 ◦C (PPB300) and 500 ◦C (PPB500) and its combination with apatite ore (AP) was applied to immobilize lead (Pb) and zinc (Zn) in agricultural multi-metal polluted soil. Soil amendments including biochar (PPB300 and PPB500) at concentrations of 3%, 5%, and 10%, as well as a mixture of biochar and apatite (AP) at 3:3% and 5:5% weight ratios, were introduced into the soil matrix. The chemical forms of Pb and Zn in incubated soil samples and control soil (CS) were studied utilizing the Tessier’s sequential extraction procedure. The chemical partitioning of heavy metals was carried out using Tessier's extraction protocol, yielding fractions representing exchangeable (F1), carbonate (F2), Fe/Mn oxide (F3), organic matter (F4), and residual (F5) forms. Quantification of Pb and Zn concentrations was accomplished via inductively coupled plasma mass spectrometry (ICP-MS). Observations revealed notable elevations in pH, organic carbon (OC), and electrical conductivity (EC) levels within the treated soil relative to the control soil (p < 0.05). After incubating PPB300, PPB500, and AP for 30 days, there was a reduction in the exchangeable fraction of Pb and Zn by approximately 64% and 58% respectively. This reduction was achieved by transforming heavy metals from mobile fractions to immobile fractions using five primary mechanisms: chemical and physical adsorption, electrostatic attraction, the formation of complexes via interactions with active groups, cation exchange processes, and precipitation events mediated by phosphate, carbonate ions, or hydroxyl ions within an alkaline environment. Therefore, pomelo peel-derived biochar and the blend of biochar/apatite show promise as materials for mitigating heavy metal pollution in soil

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“…Nevertheless, PTEs were tolerable in China's abandoned manganese mining region [ 14 ]. The result in Iran's Pb–Zn mining region revealed that Cd and Pb concentrations were higher than the background levels [ 15 ], while Vuong et al [ 16 ] reported a high level of contamination in an active Pb–Zn mine in Vietnam. In Enyigba, Nigeria, Obasi and Akudinobi [ 17 ] reported severe Cd, Cu, Pb, and Zn contamination of cropland near a Pb–Zn mine site, while a gold mine in southwest Nigeria increased the accumulation of PTEs in the surrounding soil, which posed a threat to human health [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of potentially toxic elements in soils developed on limestone and lead-zinc mine sites in parts of southeastern Nigeria

Umeobi,

Azuka,

Ofem

et al. 2024

Heliyon

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Speciation and environmental risk assessment of heavy metals in soil from a lead/zinc mining site in Vietnam

Cited by 15 publications

References 42 publications

Environmental contamination characteristics of heavy metals from abandoned lead–zinc mine tailings in China

Environmental contamination characteristics of heavy metals from abandoned lead–zinc mine tailings in China

Lead and zinc chemical fraction alterations in multi-metal contaminated soil with pomelo peel biochar and biochar/apatite incubation

Evaluation of potentially toxic elements in soils developed on limestone and lead-zinc mine sites in parts of southeastern Nigeria

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