A global meta-analysis of heavy metal(loid)s pollution in soils near copper mines: Evaluation of pollution level and probabilistic health risks

Chen, Li; Zhou, Mingxi; Wang, Jingzhe; Zhang, Zhiqin; Duan, Chengjiao; Wang, Xiangxiang; Zhao, Shufen; Xiaohan, Bai; Li, Zhijie; Li, Zimin; Fang, Linchuan

doi:10.1016/j.scitotenv.2022.155441

Cited by 165 publications

(56 citation statements)

References 73 publications

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“…It is evident that soils were moderately polluted by Cu and Cd, unpolluted to moderately polluted by Ni, Cr, and Zn, and unpolluted by As and Pb. It is corresponding to the results of Chen et al [ 31 ] that soils near the copper mines were moderately to heavily polluted with Cu and Cd.…”

Section: Resultssupporting

confidence: 88%

“…Copper is one of the most important metals and a significant resource for social and economic development [ 30 ]. In the past ten years, the global annual Cu excavation has steadily increased [ 31 ]. However, most of the copper mines are of low grade with a low copper concentration in China, resulting in a large number of tailings, containing toxic metals of As, Cd, Cr, Cu, Ni, Pb, Zn, etc., produced in the processes of mining and smelting [ 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

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Contamination, Source Apportionment, and Health Risk Assessment of Heavy Metals in Farmland Soils Surrounding a Typical Copper Tailings Pond

Xiao

Yang

et al. 2022

IJERPH

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Tailings resulting from mining and smelting activities may cause soil heavy-metal pollution and harm human health. To evaluate the environmental impact of heavy metals from tailings on farmland soils in the surrounding area, heavy metals (As, Cd, Cr, Cu, Ni, Pb, and Zn) in tailings and farmland soils in the vicinity of a typical copper tailings pond were analyzed. Contamination status, potential sources, and health risks for farmland soils were investigated. The results showed that the tailings contained a high concentration of Cu (1136.23 mg/kg). The concentrations of Cd and Cu in the farmland soils exceeded the soil quality standard. The geoaccumulation index (Igeo) indicated that the soils were moderately polluted by Cu and Cd, and slightly polluted by Ni, Cr, and Zn. The absolute principal component scores–multiple linear regression (APCS-MLR) model was applied for source apportionment. The results showed that tailings release is the main source of soil heavy-metals contamination, accounting for 35.81%, followed by agricultural activities (19.41%) and traffic emission (16.31%). The health risk assessment suggested that the children in the study region were exposed to non-carcinogenic risks caused by As, while the non-carcinogenic risk to adults and the carcinogenic risk to both adults and children were at acceptable levels. It is necessary to take effective measures to control heavy-metal contamination from tailings releases to protect humans, especially children, from adverse health risks.

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Section: Resultssupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Contamination, Source Apportionment, and Health Risk Assessment of Heavy Metals in Farmland Soils Surrounding a Typical Copper Tailings Pond

Xiao

Yang

et al. 2022

IJERPH

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“…Industrialization and the increasing human population have led to the exploitation of natural resources for anthropogenic activities leading to ecological imbalance. Heavy metal contamination in soil and water is one of the major examples of such human-centric activities that pose a serious threat to the environment ( Chen et al., 2022b ). However, natural phenomenon like volcanic eruptions and weathering of rocks also contributes to the contamination of soil and water bodies with heavy metals.…”

Section: Introductionmentioning

confidence: 99%

Heavy metal toxicity in plants and the potential NO-releasing novel techniques as the impending mitigation alternatives

et al. 2022

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Environmental pollutants like heavy metals are toxic, persistent, and bioaccumulative in nature. Contamination of agricultural fields with heavy metals not only hampers the quality and yield of crops but also poses a serious threat to human health by entering the food chain. Plants generally cope with heavy metal stress by regulating their redox machinery. In this context, nitric oxide (NO) plays a potent role in combating heavy metal toxicity in plants. Studies have shown that the exogenous application of NO donors protects plants against the deleterious effects of heavy metals by enhancing their antioxidative defense system. Most of the studies have used sodium nitroprusside (SNP) as a NO donor for combating heavy metal stress despite the associated concerns related to cyanide release. Recently, NO-releasing nanoparticles have been tested for their efficacy in a few plants and other biomedical research applications suggesting their use as an alternative to chemical NO donors with the advantage of safe, slow and prolonged release of NO. This suggests that they may also serve as potential candidates in mitigating heavy metal stress in plants. Therefore, this review presents the role of NO, the application of chemical NO donors, potential advantages of NO-releasing nanoparticles, and other NO-release strategies in biomedical research that may be useful in mitigating heavy metal stress in plants.

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“…Application of fertilizers, sewage sludge, urban traffic, chemical emissions from industries and mining processes are the examples of anthropogenic sources (2). These appliances are responsible for increasing heavy metal concentrations in soil (3,4). Heavy metals in agricultural lands and natural resources may pose a threat to public health due to their potential access to food chains (5)(6)(7)(8).…”

Section: Introductionmentioning

confidence: 99%

“…Apart from public sewage sludge and leaded gasoline, it also results from mining, oils, paints, and unstable materials. Pb is widely used in many industrial applications as a tetraethyl Pb [(CH 3 CH 2 ) 4 Pb], a longtime motor gasoline ingredient and a current stabilizer to certain petroleum, producing the most common heavy metal contaminants in the soil (13,14). Increase in lead pollution contributes to soil toxicity and also disturb microbial diversity (15)(16)(17).…”

Section: Introductionmentioning

confidence: 99%

Use of Parthenium hysterophorus with synthetic chelator for enhanced uptake of cadmium and lead from contaminated soils—a step toward better public health

Ejaz

Khan

Aqeel

et al. 2022

Front. Public Health

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Parthenium hysterophorus L. is a vigorous plant species with cosmopolitan distribution. It can uptake considerable quantities of heavy metals from the soil and accrue these metals in its different tissue. The use of chelating agent i.e., Ethylenediaminetetraacetic acid (EDTA) can boost up metal uptake capacity. Pot experiment was performed to evaluate phytoextraction potential of P. hysterophorus for lead (Pb) and cadmium (Cd) with and without the aid of EDTA chelator. Shoot length, weight of root and shoot (both fresh and dry), leaves number, and chlorophyll contents of P. hysterophorus got reduced with an increase in metal uptake. The results revealed the highest concentration of Cd in shoot without and with EDTA was 283.6 and 300.1 mg kg−1, correspondingly. Increase in Pb concentration was also boosted up by the EDTA from its maximum concentration in shoot 4.30–9.56 mg kg−1. Generally, Pb and Cd concentrations were greater in shoots of P. hysterophorus than the roots regardless of EDTA in the treatments. EDTA also impacted positively the accumulation of essential ions K+, Na+, and Ca+2 in P. hysterophorus. The capacity of P. hysterophorus to accumulate Pb and Cd found to be increased with EDTA in the soil. Bringing metals level in the soil in accordance to the WHO standards can improve the ecosystem as well as public health.

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A global meta-analysis of heavy metal(loid)s pollution in soils near copper mines: Evaluation of pollution level and probabilistic health risks

Cited by 165 publications

References 73 publications

Contamination, Source Apportionment, and Health Risk Assessment of Heavy Metals in Farmland Soils Surrounding a Typical Copper Tailings Pond

Contamination, Source Apportionment, and Health Risk Assessment of Heavy Metals in Farmland Soils Surrounding a Typical Copper Tailings Pond

Heavy metal toxicity in plants and the potential NO-releasing novel techniques as the impending mitigation alternatives

Use of Parthenium hysterophorus with synthetic chelator for enhanced uptake of cadmium and lead from contaminated soils—a step toward better public health

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