Health risks of metal(loid)s in maize (Zea mays L.) in an artisanal zinc smelting zone and source fingerprinting by lead isotope

Wei, Xudong; Zhou, Yuting; Jiang, Yanfeng; Tsang, Daniel C.W.; Zhang, Chaosheng; Liu, Juan; Zhou, Yuchen; Yin, Meiling; Wang, Jin; Shen, Nan; Xiao, Tangfu; Chen, Yongheng

doi:10.1016/j.scitotenv.2020.140321

Cited by 47 publications

(27 citation statements)

References 62 publications

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“…Heavy metals with molecular weights over 40 are difficult to be decomposed or removed, and even a low concentration of heavy metals in soil and vegetation can cause harmful effects to survival and health of plants, animals, and human beings (Tan, 2004;Liu et al, 2017Liu et al, , 2020aLiu et al, , 2020bLiu et al, , 2021. To effectively control contamination, it is prerequisite to comprehend the temporal evolution of heavy metal elements and their interactions with biospheres, atmosphere, hydrosphere, and soil (Yang et al, 2012;Liu et al, 2019aLiu et al, , 2019bLiu et al, , 2019cWang et al, 2020bWang et al, , 2020cWei et al, 2020). Unfortunately, routine monitoring for the heavy metal elements often has a short time span with strong industrial activities.…”

Section: Introductionmentioning

confidence: 99%

Tree-ring recorded variations of 10 heavy metal elements over the past 168 years in southeastern China

Chen

Yao

Xiu-ling

et al. 2021

Elementa: Science of the Anthropocene

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Heavy metal pollution is a serious concern in the urban area of China. Understanding metal pollution history is crucial for setting up appropriate measures for pollution control. Herein, we report a record of concentrations of 10 heavy metals (Fe, Mn, Cu, Zn, Ni, Cr, Cd, Pb, Co, and Sr) in Pinus massoniana tree rings from Fuzhou City over the past 168 years, which represents the longest tree-ring chronology of heavy metals in China. The studied metals displayed contrasting distribution patterns. Among them, Mn and Sr showed the strongest migration trend with peak concentrations at the pith. Co, Cd, and Pb also showed distinctively high concentrations near the boundary between heartwood and sapwood. Ni, Cu, Cr, and Fe showed an increasing trend possibly due to migration toward bark caused by physiological activities and increasing tourism activities and traffic pollution. The other elements (Cr, Fe, and Zn) with low migration revealed the historical pollution possibly discharged by the Fuzhou Shipping Bureau and other anthropogenic activities. Strong correlations between Cu content and temperature were found, which provides an alternative tree-ring proxy for climate reconstruction. This study provides a long-term perspective of the joint impacts of physiological, environmental, and climatological factors on the concentrations of heavy metals in southeastern China.

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Section: Introductionmentioning

confidence: 99%

Tree-ring recorded variations of 10 heavy metal elements over the past 168 years in southeastern China

Chen

Yao

Xiu-ling

et al. 2021

Elementa: Science of the Anthropocene

Self Cite

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“…Metal accumulation varies depending on the plant developmental stage as shown for 30 and 70 day maize plants (Ruiz and Armienta 2012). It is known that heavy metals affect signi cantly plant growth in maize, including roots, leaves, cobs, and stems (Wei et al 2020;Anjhum et al 2016;Tovar et al 2018). Additionally, Ruiz and Armienta, (2012) and Drlickova et al (2013) found that As is also harmful for maize growth.…”

Section: Plant Growth and Developmentmentioning

confidence: 99%

“…Although physicochemical properties of mining wastes vary according to the ore source and processing characteristics, in general, they contain high concentrations of heavy metals such as Pb, Ni, Cd, Cu, Mn, and Zn together with low concentrations of essential nutrients like P, N, and organic matter (Bradshaw et al 1978;Walder and Chavez 1995;Boulet and Larocque 1998). High levels of heavy metals contamination of soils by mining residues have been reported elsewhere (Álvarez et al 2003; Clemente et al 2006;Vázquez et al 2006;Wei et al 2020).…”

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confidence: 95%

Bioaccumulation of heavy metals and As in maize (Zea mays L) grown close to mine tailings strongly impacts plant development

Ruíz-Huerta¹,

Cedillo-Hernandez²,

Dubrovsky³

et al. 2021

Preprint

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Potentially toxic metals and metalloids present in mining residues can affect ecosystems, particularly plant growth and development. In this study we evaluated As and heavy metal (Fe, Zn, Cu, Cd, Pb) contents in maize (Zea mays L) plants grown in soils collected near (40 m), at intermediate (400 m) and remote (3000 m) distances from mine tailings near Taxco City, Mexico. Soils sampled near and at intermediate sites from the tailings contained high levels of heavy metals which were 3- to 55-fold higher compared to the control samples. The heavy metal and As content in plants reflected the soil contamination being the greatest for most studied elements in root samples followed by stems, leaves, and kernels. Though plants were capable of completing their life cycle and producing the seeds, high bioaccumulation levels had a strong impact on plant development. Abnormalities in the organs like malformations in reproductive structures (tassel and ear), reduction in the phytomer number and the plant height were present. Microscopic studies and morphometric analyses suggest that strongly affected plant growth result from negative and synergistic action of heavy metals and As in soils on cell growth and cell production. This study showed that maize grown near mine tailings accumulates high levels of heavy metals and As which decrease significantly plant yield and could be dangerous if consumed by animals and humans.

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“…Northwestern Guizhou is a concentrated region of the indigenous zinc smelting actives in Guizhou Province, with a long smelting history of more than 300 years ( Wei et al, 2020 ; Yang et al, 2009 ; Zhou et al, 2020 ). There is still an vital need for study on the contamination of potentially toxic metal(loid)s (PTMs: i.e., arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), lead (Pb) and zinc (Zn)) in this region because they may be contaminating the surrounding environment and even endanger the health of animals or human beings due to PTMs of indigenous zinc slag.…”

Section: Introductionmentioning

confidence: 99%

“…Although indigenous zinc smelting active has been banned by the local government for more than ten years ( Peng et al, 2018b ), there cannot be neglected the PTM contamination of the slag to their surrounding environment. The smelting slag-contaminated soils could increase the PTMs access by crops and vegetables ( Liu et al, 2018 ), and the smelting activities are the dominant contribution to the Pb contamination in the mean of tissues of the maize from the Pb–Zn smelting area in southwest China ( Wei et al, 2020 ). PTMs originated from smelter-originated wastes that are transferred into the soil, and then that might be finally caused to urgent health risks of the exposure of local residents ( Zhou et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Potentially toxic metal(loid) distribution and migration in the bottom weathering profile of indigenous zinc smelting slag pile in clastic rock region

Peng

Yang

Jin

et al. 2021

PeerJ

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Background There are contaminated by potentially toxic metal(loid)s (PTMs) that the surface soil and the weathering profiles around the indigenous zinc smelting slag piles or smelters in the smelting area. However, few systematic studies are currently focusing on the PTM distribution and migration among the slag and its bottom weathering profile. Methods This research determined the concentrations of PTMs and pH values. And we analyzed PTM distribution in the two weathering profiles (slag-covered and slag-absent) with a small horizontal distance in the clastic rock region in the smelting area. Results The soil As and Pb contents, respectively, within the 30 and 50 cm depth in the slag-covered section were higher than those in the slag-absent profile. All soil Cd and Zn contents of the slag-covered core were significantly higher than those in the slag-absent weathering section. Conclusions Compared with the slag-absent weathering section, some PTMs (i.e., As, Cd, Pb and Zn) in the bottom weathering profile were polluted by these elements in the covered slag in the clastic rock region, and their depths were influenced by the slag to varying degrees. Additionally, with time, some PTMs (especially Cd and Zn) of the slag might finally contaminate the groundwater by leaching and infiltration through its bottom weathering profile in the clastic rock region.

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Health risks of metal(loid)s in maize (Zea mays L.) in an artisanal zinc smelting zone and source fingerprinting by lead isotope

Cited by 47 publications

References 62 publications

Tree-ring recorded variations of 10 heavy metal elements over the past 168 years in southeastern China

Tree-ring recorded variations of 10 heavy metal elements over the past 168 years in southeastern China

Bioaccumulation of heavy metals and As in maize (Zea mays L) grown close to mine tailings strongly impacts plant development

Potentially toxic metal(loid) distribution and migration in the bottom weathering profile of indigenous zinc smelting slag pile in clastic rock region

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