Using Pb Isotope to Quantify the Effect of Various Sources on Multi-Metal Polluted soil in Guiyu

Jiang, Shiwei; Luo, Jie; Ye, Yuqun; Ge, Yang; Pi, Wen; He, Wenjun

doi:10.1007/s00128-018-02534-5

Cited by 14 publications

(4 citation statements)

References 22 publications

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“…Previous studies have suggested that Cr and Ni in the soil are mainly controlled by natural sources [30,31]. In addition, weathering of soil-forming parent rocks has been reported as a source of Pb and Cu in soils [32,33]. Therefore, the PCA1 can be interpreted as representing a natural parent material source for soil formation.…”

Section: Principal Component Analysismentioning

confidence: 99%

Analysis of the Source Apportionment and Pathways of Heavy Metals in Soil in a Coal Mining Area Based on Machine Learning and an APCS-MLR Model

Chen,

Zhao,

Chen

et al. 2023

Minerals

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Long-term coal mining activities have led to severe heavy metal pollution in the soil environment of coal mining areas, posing significant threats to both ecological environments and human health. In this study, surface soil samples were collected from the overlying soil of coal gangue and the surrounding areas of the Panyi coal mine in Huainan. The concentrations of Cd, Zn, Cu, Ni, and Pb elements were determined. A self-organizing map (SOM) and an absolute principal component score multiple linear regression (APCS-MLR) receptor model were employed for the quantitative analysis of the soil’s heavy metal pollution sources and contributions. Additionally, this study focused on the analysis of the pathways of the relatively serious pollution of Cd. The results revealed that the average concentrations of heavy metals (Cd, Pb, Zn, Cu, Cr, and Ni) in the study area were 4.55, 0.59, 1.54, 0.69, 0.59, and 0.71 times the local soil background values, respectively. The concentrations of Cd and Zn exceeded the risk screening values at some sampling points, with exceedance rates of 44% and 8%, respectively, indicating a relatively serious Cd contamination. The sources of heavy metals in the soil in the study area were classified into four categories: mining activities, agricultural activities, weathering of natural matrices, and other unknown sources, with average contributions of 55.48 percent, 24.44 percent, 8.91 percent and 11.86 percent, respectively. Based on the spatial distribution of Cd, it was inferred that atmospheric deposition is one of the important pollution pathways of Cd in the study area. Cd profile distribution patterns and a surface water pollution survey showed that the farmland areas were affected by the irrigation water pathway to some extent. The vertical distribution of heavy metal content in the forest area showed a strong disorder, which was related to the absorption function of plant roots. The results of this study can help to improve the environmental management of heavy metal pollution so as to protect the ecological environment and human health.

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Section: Principal Component Analysismentioning

confidence: 99%

Analysis of the Source Apportionment and Pathways of Heavy Metals in Soil in a Coal Mining Area Based on Machine Learning and an APCS-MLR Model

Chen,

Zhao,

Chen

et al. 2023

Minerals

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“…The heavily contaminated soils used in this experiment were obtained from the top layer (20 cm) of a well-known electronic waste recycling center, Guiyu, located in south China, in which the soils have been heavily polluted owing to electronic waste dismantling activities using primitive recycling methods (Jiang et al, 2019). After air-drying, the soils were ground and sieved using a 2-mm nylon mesh.…”

Section: Plant and Soil Materialsmentioning

confidence: 99%

Effects of Magnetically Treated Sedum Alfredii Seeds On The Dissolved Organic Matter Characteristics of Cd-Contaminated Soil During Phytoextraction

Tang

Chen

et al. 2021

Preprint

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The effects of magnetic field treatments on the two determining factors of phytoremediation, growth status and element uptake capacity, of Sedum alfredii have been thoroughly studied; however, minimal studies have been performed to determine the influence of the Cd hyperaccumulator Sedum alfredii, grown from magnetically treated seeds, on the dissolved organic matter (DOM) characteristics in its rhizosphere. A series of pot experiments were conducted to evaluate the variations in the DOM concentration and fractionations in the rhizosphere of S. alfredii treated with external magnetic fields. Compared with the untreated seeds, S. alfredii grown from magnetically treated seeds excreted more DOM in its rhizosphere. Additionally, the hydrophilic DOM fractionation proportion, which presented a greater capacity to mobilize Cd in the soil, increased from 42.7 % in the control sample to 47.2 % in the 150 mT magnetically treated S. alfredii sample. The water-soluble and exchangeable forms of Cd (extracted using deionized water and NH4NO3, respectively) in the rhizosphere of the magnetically treated S. alfredii were significantly lower than those of the control sample. Furthermore, the Cd extraction capacity of DOM from the rhizosphere of the magnetically treated S. alfredii was greater than that of the control sample, thereby increasing the Cd uptake ability of the magnetically treated species. These results suggest that the secretion of large amounts of DOM, especially acid and hydrophilic fractionations, is an essential mechanism of magnetically treated S. alfredii to mobilize Cd in the soil.

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“…Most recycling activities are operated in village-owned or private family-sized enterprises without su cient occupational hygienic and pollution control measures. Primitive dismantling and recycling methods including acid washing, burning, and hydrometallurgy melting, which discharge a large amount of solid and liquid waste that contain multiple metals, induce severe environmental pollution (Jiang et al, 2019).…”

Section: Collection and Preparation Of Soilmentioning

confidence: 99%

Impacts of root pruning intensity and direction on the phytoremediation of moderately Cd-polluted soil by Celosia argentea

Tang

Gan

Cao

et al. 2021

International Journal of Phytoremediation

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Root pruning can impact the nutrient uptake capacity, photosynthetic e ciency, transpiration rate, root pressure, and biomass yield of various plants, which in uence phytoremediation. A series of root pruning treatments with different combinations of direction (two-side pruning and four-side pruning) and intensity (10%, 25%, and 33% pruning) were performed on Celosia argentea. All two-side pruning treatments, regardless of intensity, decreased the dry biomass of the C. argentea roots at the end of the experiment relative to that of the control, and the lowest value occurred in the two-side-33% pruning treatment.However, the two-side-10% and two-side-25% pruning treatments stimulated the growth rate of the plant leaves signi cantly by 58.6% and 41.4%, respectively, relative to that of the control, and even offset the weight loss of the plant roots. Contrastingly, the two-side-33% pruning treatment reduced the biomass yield of leaves by 24.1%. For the four-side pruning treatments, low intensity increased the dry weight of both the plant roots and leaves, while both decreased under high intensity root pruning. The dry weight, Cd content, pigment level, and photosynthetic e ciency in the four-side-10% treatment were higher than those in the other treatments during the experiment, thereby corresponding to the best phytoremediation effect. Except for the two-side-33% pruning treatment, all the treatments increased the phytoremediation e ciency of C. argentea, thereby indicating that root pruning with a suitable combination of direction and intensity can positively in uence the Cd removal ability of C. argentea.

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Using Pb Isotope to Quantify the Effect of Various Sources on Multi-Metal Polluted soil in Guiyu

Cited by 14 publications

References 22 publications

Analysis of the Source Apportionment and Pathways of Heavy Metals in Soil in a Coal Mining Area Based on Machine Learning and an APCS-MLR Model

Analysis of the Source Apportionment and Pathways of Heavy Metals in Soil in a Coal Mining Area Based on Machine Learning and an APCS-MLR Model

Effects of Magnetically Treated Sedum Alfredii Seeds On The Dissolved Organic Matter Characteristics of Cd-Contaminated Soil During Phytoextraction

Impacts of root pruning intensity and direction on the phytoremediation of moderately Cd-polluted soil by Celosia argentea

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