Distribution patterns and sources of heavy metals in soils from an industry undeveloped city in Southern China

Bi, Xiangyang; Zhang, Mohai; Wu, Yunjie; Fu, Zhongbiao; Sun, Guangyi; Shang, Lihai; Li, Zhonggen; Wang, Pengcong

doi:10.1016/j.ecoenv.2020.111115

Cited by 52 publications

(15 citation statements)

References 52 publications

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“…Compared to Beijing and Shanghai soils, the Pb isotope fingerprints from Haikou were all significantly different but identical to those from Guangzhou soils, implying that Pb originates from a common source throughout southern China cities [ 29 ]. Moreover, rock weathering contributes significantly to soil (Cd) deposition, particularly in SW China [ 57 ].…”

Section: Investigational Methodsmentioning

confidence: 99%

“…Heavy metal contamination has been causing numerous environmental hazards [ 28 ], including water, atmosphere, and soil. The addition of heavy metals in soils from several Chinese towns revealed that many of them were contaminated with multiple types of heavy metals [ 29 ]. Industrialization in China has increased heavy metal pollution in the soil and water.…”

Section: Introductionmentioning

confidence: 99%

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Research Progress on Heavy Metals Pollution in the Soil of Smelting Sites in China

Adnan

Xiao

et al. 2022

Toxics

103

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Contamination by heavy metals is a significant issue worldwide. In recent decades, soil heavy metals pollutants in China had adverse impacts on soil quality and threatened food security and human health. Anthropogenic inputs mainly generate heavy metal contamination in China. In this review, the approaches were used in these investigations, focusing on geochemical strategies and metal isotope methods, particularly useful for determining the pathway of mining and smelting derived pollution in the soil. Our findings indicate that heavy metal distribution substantially impacts topsoils around mining and smelting sites, which release massive amounts of heavy metals into the environment. Furthermore, heavy metal contamination and related hazards posed by Pb, Cd, As, and Hg are more severe to plants, soil organisms, and humans. It’s worth observing that kids are particularly vulnerable to Pb toxicity. And this review also provides novel approaches to control and reduce the impacts of heavy metal pollution. Hydrometallurgy offers a potential method for extracting metals and removing potentially harmful heavy metals from waste to reduce pollution. However, environmentally friendly remediation of contaminated sites is a significant challenge. This paper also evaluates current technological advancements in the remediation of polluted soil, such as stabilization/solidification, natural attenuation, electrokinetic remediation, soil washing, and phytoremediation. The ability of biological approaches, especially phytoremediation, is cost-effective and favorable to the environment.

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Section: Investigational Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research Progress on Heavy Metals Pollution in the Soil of Smelting Sites in China

Adnan

Xiao

et al. 2022

Toxics

103

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“…PCA could make it easier to interpret a given multidimensional system by displaying the correlations among the original variables (Zhao et al, 2020). Additionally, PCA has also widely applied to various environmental media, to identify pollution sources and to apportion natural versus anthropogenic contributions (Bi et al, 2020). The components of the PCA were transformed using varimax rotation with Kaiser Normalization after the analysis (Kaiser, 1960).…”

Section: Source Apportionment Methodsmentioning

confidence: 99%

Evaluating heavy metals contamination in campus dust in Wuhan, the university cluster in Central China: distribution and potential human health risk analysis

et al. 2022

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The potential health risk of heavy metals (HMs) in campus dust may threaten the health of thousands of students, teachers, and their families in Wuhan, the university cluster in Central China every day. In this research, the pollution characteristics and health risk with HMs was the first time presented in campus dust from the canteen, playground, dormitory, and school gate to date. The average HMs concentration in campus dusts ranked Pb (83.5 mg kg-1) > Cu (70.2 mg kg-1) > Zn (47.2 mg kg-1) >Cr (46.0 mg kg-1) > Ni (22.7 mg kg-1) > As (15.2 mg kg-1) > Cd (3.38 mg kg-1).The HMs would more likely to accumulate in dormitory dust and canteen dust. In the downtown area, Zn, As, and Cd had been preliminarily identified from fossil fuel combustion and natural geochemical processes. Cu and Pb would source from cooking and traffic transportation. Ni and Cr would likely reflect the contributions of natural soil weathering. Although, no significant non-carcinogenic health risks were found to students or teachers from campus dust. Their children would more likely to exposure health risks when eating in the canteen, playing on the playground, or walking around the school gate. While the incremental lifetime cancer risk values revealed respiratory intake of HMs does not pose a carcinogenic risk on the campus.

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“…Relatively high concentrations of Pb occur in industrial solid wastes and road dust because the Pb contained in wear lubricating oil and tires is always released to road dust [36,37]. In addition, Pb is produced from traffic emissions due to the combustion of fuels and the use of engines and catalysts before 2000, and consequently, it certainly accumulates [38]. In our study, the average concentration of Pb in the soil samplings alongside the highways was higher than its background values, suggesting that Pb is possibly influenced by traffic emissions.…”

Section: Potential Sources Of the Heavy Metals Ecological Risksmentioning

confidence: 99%

Potential Ecological Risks of Heavy Metals in Agricultural Soil Alongside Highways and Their Relationship with Landscape

Wen

et al. 2021

Agriculture

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The agricultural soil alongside highways has experienced multiple potential ecological risks from human activities. In this study, 100 soil samples near the highways were collected in Lishui District, Nanjing City. Using the single-factor pollution index, the Nemerow comprehensive pollution index, and the potential ecological risk index, the study investigated the heavy metal contents and distribution in roadside agricultural soil. PCA and a multiple regression model were applied to quantitatively analyze the spatial relationships between sampling soil heavy metal accumulation and the surrounding man-made landscape. The mean contents of Cu and Pb exceeded the background, while Cd, Cr, and Zn were lower than that. The potential ecological risk index exhibited a very low ecological hazard and only Cr in soils rarely showed moderate risk. Furthermore, quantitative analysis for the sources of contamination revealed that agricultural practices were the dominant contributors to the heavy metals, including Cd, Cu, and Zn, while road and heavy industrial practices contributed to Cr and Pb. The study provides sources of heavy metal pollution from human activities in roadside agricultural land and serves as a reference for ecological restoration.

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Distribution patterns and sources of heavy metals in soils from an industry undeveloped city in Southern China

Cited by 52 publications

References 52 publications

Research Progress on Heavy Metals Pollution in the Soil of Smelting Sites in China

Research Progress on Heavy Metals Pollution in the Soil of Smelting Sites in China

Evaluating heavy metals contamination in campus dust in Wuhan, the university cluster in Central China: distribution and potential human health risk analysis

Potential Ecological Risks of Heavy Metals in Agricultural Soil Alongside Highways and Their Relationship with Landscape

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