Analytical study on heavy metal output fluxes and source apportionment of a non-ferrous smelter in southwest China

Li, Chenchen; Yu, Xuegong; Yan, Jinpei; Gong, Rui; Meng, Qi; Yao, Jun; Yu, Hanjing; Ma, Yaoqiang; Liu, Bang; Xie, Ruosong

doi:10.1016/j.envpol.2023.121867

Cited by 8 publications

(2 citation statements)

References 65 publications

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“…This underscored significant spatial heterogeneity in heavy metal(loid) pollution in the soil, which can be associated with both anthropogenic and natural environmental factors. Specifically, some previous research on five Sn polymetallic deposits in Gejiu, including Malage, Songshujiao, Gaosong, Laochang, and Kafang, showed approximately 300 Mt of Sn ores at a mean grade of 1 wt% Sn, another 300 Mt of Cu ores averaging 2 wt% Cu, and 400 Mt of Pb-Zn ores with a mean grade of 7 wt% Pb/Zn [28] due to a protracted history of mining activities, including a Pb/Zn/Sn smelter, which resulted in the liberation and migration of the polymetallic elements [29][30][31]. Notably, As and Cr, unlike other heavy metal(loid) cations, generally exist in the form of oxygen-containing anions (AsO 4 3− and CrO 4 2− ) in the soil [32,33], resulting in a strong affinity to soil mineral surfaces and, consequently, a lower mobilization capacity.…”

Section: Total Concentration Of Heavy Metal(loid)s In the Soilmentioning

confidence: 99%

Assessing Phytoremediation Potential: Dominant Plants in Soils Impacted by Polymetal(loid)lic Mining

Wang,

Hou,

et al. 2024

Processes

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Phytoremediation, an ecological approach aimed at addressing polymetal(loid)lic-contaminated mining soils, has encountered adaptability challenges. Dominant plant species, well-suited to the local conditions, have emerged as promising candidates for this purpose. This study focused on assessing the phytoremediation potential of ten plant species that thrived in heavy metal(loid)-contaminated mining soils. This investigation covered nine heavy metal(loid)s (As, Cu, Cd, Cr, Hg, Ni, Pb, Sn, and Zn) in both plants and rhizosphere soils. The results revealed a significant impact of mining activities, with heavy metal(loid) concentrations surpassing the Yunnan Province’s background levels by 1.06 to 362 times, highlighting a significant concern for remediation. The average levels of the heavy metal(loid)s followed the order of As (3.98 × 103 mg kg−1) > Cu (2.83 × 103 mg kg−1) > Zn (815 mg kg−1) > Sn (176 mg kg−1) > Pb (169 mg kg−1) > Cr (68.1 mg kg−1) > Ni (36.2 mg kg−1) > Cd (0.120 mg kg−1) > Hg (0.0390 mg kg−1). The bioconcentration factors (BCFs), bioaccumulation factors (BAFs), and translocation factors (TFs) varied among the native plants, indicating diverse adaptation strategies. Low BCFs and BAFs (ranging from 0.0183 to 0.418 and 0.0114 to 0.556, respectively) suggested a low bioavailability of heavy metal(loid)s. Among the species, both J. effusus and P. capitata showed remarkable abilities for As accumulation, while A. adenophora demonstrated a notable accumulation ability for various heavy metal(loid)s, especially Cd, with relatively high BCFs (1.88) and BAFs (3.11), and the TF at 1.66 further underscored the crucial role of translocation in preventing root toxicity. These findings emphasized the potential of these plant species in mine ecological restoration and phytoremediation, guiding targeted environmental rehabilitation strategies.

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Section: Total Concentration Of Heavy Metal(loid)s In the Soilmentioning

confidence: 99%

Assessing Phytoremediation Potential: Dominant Plants in Soils Impacted by Polymetal(loid)lic Mining

Wang,

Hou,

et al. 2024

Processes

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“…The intensive application of these strategies can result in high costs and severe environmental impact, which make remediation work ineffective and non-sustainable [19,20]. For output sources, plant removal, leaching, and surface runoff are the main output sources of heavy metals in agricultural soils [21,22]. The total amount of heavy metals removed by plants can be significantly affected by humans.…”

Section: Introductionmentioning

confidence: 99%

Status of Sustainable Balance Regulation of Heavy Metals in Agricultural Soils in China: A Comprehensive Review and Meta-Analysis

Wei,

Jia,

Chang

et al. 2024

Agronomy

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To control heavy metal pollution effectively, prevention of heavy metal accumulations in agricultural soils should be the priority rather than remediation of heavy metal contamination. In this research, papers which contained input and output fluxes of Cd, As, Cr, Hg, and Pb in topsoil (the plough layer) of agricultural lands in Hunan, Zhejiang, the Yangtze River Delta, Hainan, and China as a whole were explored. Fluxes of heavy metal species were recalculated, and future trends of pollution were predicted. Also, cases regarding the application of technologies to control the input and output of heavy metals were analyzed. Results indicated that atmospheric decomposition was the dominant input source of heavy metals in all study sites except Hainan. The relative contributions of fertilizers, irrigation water, and straw returning fluctuated greatly among different sites. Cd pollution in all sites was the most serious, followed by Cr and Pb. In Hunan, Cd has already exceeded the maximum limit value and needs to be controlled urgently. The input of heavy metals from irrigation water, fertilizers, and straw returning could be controlled by proposing more policies to manage their quality and application amounts. The amount of heavy metals absorbed by plants could be increased by cultivating crops with hyperaccumulators and high-biomass plants.

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Potential risk, leaching behavior and mechanism of heavy metals from mine tailings under acid rain

Li,

Deng,

Wang

et al. 2024

Chemosphere

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Analytical study on heavy metal output fluxes and source apportionment of a non-ferrous smelter in southwest China

Cited by 8 publications

References 65 publications

Assessing Phytoremediation Potential: Dominant Plants in Soils Impacted by Polymetal(loid)lic Mining

Assessing Phytoremediation Potential: Dominant Plants in Soils Impacted by Polymetal(loid)lic Mining

Status of Sustainable Balance Regulation of Heavy Metals in Agricultural Soils in China: A Comprehensive Review and Meta-Analysis

Potential risk, leaching behavior and mechanism of heavy metals from mine tailings under acid rain

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