Metal-mining-induced sediment pollution presents a potential ecological risk and threat to human health across China: A meta-analysis

Wu, Lijun; Yue, Weifeng; Wu, Jin; Cao, Changming; Liu, Hong; Teng, Yanguo

doi:10.1016/j.jenvman.2022.117058

Cited by 25 publications

(14 citation statements)

References 80 publications

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“…The total amount of Pb, Cd and Zn in slag heap is higher than that in other plots, but the content of Mn is low, which may be related to the low content of loam and clay in slag heap and high pH (Lu et al, 2022). Soil contaminated by heavy metals has various adverse effects on plant growth, such as the reduction of plant nutrients, toxic concentration of heavy metals, salinity and alkalinity (Wu et al, 2023). Despite being contaminated by heavy metals, different plant species have achieved their adaptation through microevolutionary processes (Buch et al, 2020), which are determined by specific cellular mechanisms, including limiting and/or excluding free radical absorption of heavy metals, fixing heavy metals in the external environment through free radical exudates (Elizabeth et al, 2020), chelating ions in the epidermis, vacuoles and trichomes, and transferring heavy metals through xylem to branches (Singh et al, 2020).…”

Section: Discussionmentioning

confidence: 97%

“…Abandoned land in mining areas refers to the land that has been destroyed in mining, transportation, smelting and other mining processes and cannot exert normal ecological functions without restoration (Saavedra-Mella et al, 2022). Abandoned land, tailings and waste residues often remain after mining, causing serious soil pollution, water pollution and air pollution (Wu et al, 2023), posing a major threat to human health and environmental safety (Briffa et al, 2020). Therefore, the restoration and stabilization of mining wasteland has become one of the environmental issues of global concern.…”

Section: Introductionmentioning

confidence: 99%

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Rhizosphere microbial characteristics of pioneer plant Oxyria sinensis Hemsl. in abandoned Pb-Zn mining area

Tang,

Yang,

Yuan

et al. 2023

Front. Ecol. Evol.

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Oxyria sinensis has the characteristics of drought resistance, barren resistance, pollution resistance and clonal reproduction, and has the potential to be developed as a restoration plant (pioneer plant) for vegetation restoration and heavy metal pollution control in mining wasteland. In this study, the rhizosphere microbial communities of the pioneer plant O. sinensis growing in a lead-zinc mine wasteland and the rhizosphere microbial communities of O. sinensis growing in adjacent non-mining areas were studied by field investigation. There were significant differences in the composition of microbial communities between the rhizosphere soil of O. sinensis and the bare soil. There were significant differences in the composition of soil microbial communities between the non-mining area control and the lead-zinc mine wasteland. Compared with the non-mining area control, the rhizosphere soil of O. sinensis in the lead-zinc mine wasteland had a unique microbial community. The dominant bacteria were Nitrospirae, Chloroflexi, Proteobacteria, Actinobacteria, Ascomycota and Kickxellomycota. Further gene function prediction showed that the metabolic pathway sequences related to heavy metal ion transport, heavy metal resistance and repair in the rhizosphere soil of O. sinensis were more abundant than those in the control. The dominant ecological functional groups of fungi in the rhizosphere soil of O. sinensis were saprophytic flora and pathological flora. Plenodomus, Surfurifusis, Sphingomonas, Filobasidium and Articulospora were enriched in the rhizosphere soil of O. sinensis in the abandoned land of lead-zinc mining area, and had high tolerance to heavy metals in the soil, indicating that O. sinensis can recruit heavy metal-tolerant microbial groups to promote its survival and adaptation in the abandoned land of the mining area.

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Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Rhizosphere microbial characteristics of pioneer plant Oxyria sinensis Hemsl. in abandoned Pb-Zn mining area

Tang,

Yang,

Yuan

et al. 2023

Front. Ecol. Evol.

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“…The generation of Hg 2+ ions in coastal seawater is influenced by various sources, including shipbuilding and shipping operations, domestic and industrial wastewater discharges, as well as estuaries. 2 These activities contribute to the release of Hg 2+ ions into the marine environment, increasing the pollution levels in coastal seawater. The presence of Hg 2+ ions in coastal seawater poses a significant and imminent threat to both marine ecosystems and human health.…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, coastal waters are particularly vulnerable to the generation of Hg 2+ ions due to the ongoing expansion of the aquaculture industry and frequent shipping activities. The generation of Hg 2+ ions in coastal seawater is influenced by various sources, including shipbuilding and shipping operations, domestic and industrial wastewater discharges, as well as estuaries . These activities contribute to the release of Hg 2+ ions into the marine environment, increasing the pollution levels in coastal seawater.…”

Section: Introductionmentioning

confidence: 99%

Biocompatible Mn(II)-Enhanced N–S-Codoped Carbon Dots: A Versatile Fluorescence Sensor for Sensitive Hg²⁺ Detection in Coastal Seawater and Living Cells

Yang,

Tang,

Wang

et al. 2024

ACS Appl. Nano Mater.

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Despite the promising potential of carbon dots (CDs) as a photoluminescent nanomaterial in advancing spectral analysis techniques for the detection of various harmful heavy metal ions such as Hg 2+ , Cu 2+ , Cd 2+ , and Pb 2+ , the fundamental challenge of effectively eliminating the interference of transition metal ions in multi-ion systems persists. In this study, we present straightforward, efficient, and versatile manganese(II)-enhanced nitrogen and sulfur codoped carbon dots (Mn(II)-N,SCDs) specifically designed for the highly selective and sensitive detection of Hg 2+ ions. Mn(II)-N,SCDs exhibited uniform particle size (∼2.0 nm) and demonstrated excellent fluorescence performance, characterized by high fluorescence intensity and quantum yield (QY = 48.71%). The incorporation of Mn 2+ not only enhances the fluorescence characteristics but also serves to effectively block the surplus transition metal ion binding sites on the surface of carbon dots, thereby leading to a heightened selective response to Hg 2+ . Furthermore, the synthesized Mn(II)-N,SCDs also exhibited low cytotoxicity and efficient cellular uptake, enabling fluorescence imaging of living cells. Importantly, the developed fluorescence sensor exhibited a highly specific response to Hg 2+ ions even in the presence of other metal ions in phosphate-buffered solution (PBS), with a low detection limit of 0.29 nM (S/ N = 3). The efficacy of the probe was successfully demonstrated through the determination of Hg 2+ in live cells and natural coastal water samples.

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“…For example, the excessive accumulation of HMs can impede plant growth and decrease land productivity [6]. Exposure to HMs through ingestion, inhalation, and dermal contact can result in both non-carcinogenic and carcinogenic risks due to the potential damage that HMs can cause to humans' internal organs and nervous systems [7]. Therefore, controlling the risk of soil HMs is essential for human health and sustainable socioeconomic development.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Environmental and Health Risk Assessment of Soil Heavy Metal(loid)s Considering Uncertainties: The Case of a Typical Metal Mining Area in Daye City, China

Zhou,

Yue,

Chen

et al. 2023

Minerals

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Heavy metal(loid)s (HMs) in soils near mining sites often cause serious environmental and health issues. Accurately assessing soil HM risks and identifying priority pollutants are crucial for improving risk control efficiency with limited management costs and resources. Traditional deterministic assessments may yield biased results due to the imprecision and ambiguity of environmental data and assessment processes. To compensate for the deficiencies of deterministic assessment, a comprehensive probabilistic-fuzzy model was developed based on fuzzy theory, probability methods, the soil contamination risk (SCR) index, and a human health risk (HR) assessment framework. According to this model, the soil HM risk status in a typical mining area in China was evaluated. The results indicated that Cd and Cu significantly violated the relevant environmental guidelines and were considered priority metals for environmental risk (ER). Notably, Cd’s hazard predominantly manifested in a solid potential ecological risk (PER), whereas Cu’s environmental impact primarily manifested as a soil contamination risk (SCR). From the perspective of HR, soil HMs already pose a considerable threat to human health, with children facing greater HRs than adults. As was identified as a priority element for HRs, with carcinogenic and non-carcinogenic risks reaching unacceptable levels. Regarding general risk (GR), Cd and Cu ranked in the first gradient and As in the second gradient. Overall, the accumulation of soil HMs—especially Cd, Cu, and As—in the study area has posed a significant threat to the ecosystem and human health. The risks of other HMs (Pb, Zn, Cr, and Ni) are relatively low, but the superimposed risks of multiple HMs should not be ignored. The probabilistic–fuzzy model reduces the uncertainty of risk assessment, and the model integrates the environmental and health risks of HMs, providing more comprehensive risk information. The assessment results can serve as a reference for managers to develop targeted control strategies.

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Metal-mining-induced sediment pollution presents a potential ecological risk and threat to human health across China: A meta-analysis

Cited by 25 publications

References 80 publications

Rhizosphere microbial characteristics of pioneer plant Oxyria sinensis Hemsl. in abandoned Pb-Zn mining area

Rhizosphere microbial characteristics of pioneer plant Oxyria sinensis Hemsl. in abandoned Pb-Zn mining area

Biocompatible Mn(II)-Enhanced N–S-Codoped Carbon Dots: A Versatile Fluorescence Sensor for Sensitive Hg²⁺ Detection in Coastal Seawater and Living Cells

Comprehensive Environmental and Health Risk Assessment of Soil Heavy Metal(loid)s Considering Uncertainties: The Case of a Typical Metal Mining Area in Daye City, China

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Metal-mining-induced sediment pollution presents a potential ecological risk and threat to human health across China: A meta-analysis

Cited by 25 publications

References 80 publications

Rhizosphere microbial characteristics of pioneer plant Oxyria sinensis Hemsl. in abandoned Pb-Zn mining area

Rhizosphere microbial characteristics of pioneer plant Oxyria sinensis Hemsl. in abandoned Pb-Zn mining area

Biocompatible Mn(II)-Enhanced N–S-Codoped Carbon Dots: A Versatile Fluorescence Sensor for Sensitive Hg2+ Detection in Coastal Seawater and Living Cells

Comprehensive Environmental and Health Risk Assessment of Soil Heavy Metal(loid)s Considering Uncertainties: The Case of a Typical Metal Mining Area in Daye City, China

Contact Info

Product

Resources

About

Biocompatible Mn(II)-Enhanced N–S-Codoped Carbon Dots: A Versatile Fluorescence Sensor for Sensitive Hg²⁺ Detection in Coastal Seawater and Living Cells