Legacy of multiple heavy metal(loid)s contamination and ecological risks in farmland soils from a historical artisanal zinc smelting area

Zhou, Yuting; Wang, Lulu; Xiao, Tangfu; Chen, Yongheng; Beiyuan, Jingzi; She, Jingye; Zhou, Yuchen; Yin, Meiling; Liu, Juan; Liu, Yanyi; Wang, Yuxuan; Wang, Jin

doi:10.1016/j.scitotenv.2020.137541

Cited by 120 publications

(38 citation statements)

References 49 publications

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“…Thallium is a highly toxic element dispersed in the atmosphere, pedosphere, and hydrosphere Lopez-Arce et al, 2019;Wang et al, 2020Wang et al, , 2021Zhou et al, 2020). Its appearance in water is mainly originated from illegal or unintentional drainage of Tl-bearing materials mining, which greatly threatens water quality and the aquatic organisms (Cheam et al, 2000;Twiss et al, 2003;Liu et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

CH4 isotopic signatures of emissions from oil and gas extraction sites in Romania

Wang

Zhou

Wei

et al. 2022

Elementa: Science of the Anthropocene

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Thallium (Tl) is a highly toxic trace metal widely distributed in water environments, which may threaten the water quality and aquatic organisms at excessive levels due to increased anthropogenic activities. This study investigated the changes in microbial communities of intestines and organs of zebrafish. The toxic response assessments include intestinal microbiota composition and the histopathology of zebrafish’s gill and liver tissues under exposure of Tl at environmental-relevant levels. The results support that the intestinal microbial community of zebrafish greatly changed under a relatively high Tl concentration (1000 ng/L). A significant increase of pathogenic intestinal bacteria such as Mycobaterium in the intestine of zebrafish exposed at Tl levels over 500 ng/L was found. Additionally, the gill and liver tissues displayed different degrees of damage under Tl exposure, which possibly leads to mating behavior changes and death of zebrafish. The results indicate that low doses of Tl in the aquatic environment induce high toxicity on zebrafish and may pose pathological threats to the gill and liver of zebrafish. In addition, Tl exposure gives rise to increasing abundance of pathogenic intestinal bacteria and changes the community structure of intestinal microorganisms.

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Section: Introductionmentioning

confidence: 99%

CH4 isotopic signatures of emissions from oil and gas extraction sites in Romania

Wang

Zhou

Wei

et al. 2022

Elementa: Science of the Anthropocene

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“…These findings could be attributed to the anthropogenic input of Cd into the soil in addition to the soil properties, especially the long-term intensive smelting activities that had occurred there (Briki et al, 2015;X. D. Wei et al, 2020;Zhou et al, 2020).…”

Section: Soil Properties and Total And Available CD Concentrations In Soilmentioning

confidence: 99%

Evaluation of Cadmium Transfer from Soil to the Human Body Through Maize Consumption in a Cadmium Anomaly Area of Southwestern China

Duan

Zheng

Luo

et al. 2021

Enviro Toxic and Chemistry

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Evaluating the bioavailability, bioaccessibility, and transferability of cadmium (Cd) in soil-grain-human systems is essential in areas with a Cd anomaly in the karst region of southwestern China. In the present study, the main controlling factors and prediction models for Cd transfer in a soil-grain-human system were investigated in a typical area where natural processes and anthropogenic activities interact in the karst region of southwestern China. The environmental availability of Cd (diethylenetriaminepentaacetic acid-and CaCl 2 -extractable Cd [Cd CaCl2 ]) in the soil varies significantly because of the diversity of soil properties. However, Cd concentrations in the maize grain were significantly related only to the Cd CaCl2 concentrations in the soil (r = 0.595, p < 0.01), indicating that soil Cd CaCl2 is a good indicator for evaluating Cd uptake by maize grain. Of all the measured soil properties, the soil cation exchange capacity (CEC) and the soil calcium (Ca soil ) were the most important factors influencing Cd accumulation in the soil-maize grain system. A transfer model combining Cd CaCl2 , soil CEC, and Ca soil was sufficiently reliable for predicting Cd accumulation in the maize grain (R 2 = 0.505). Although there is room for improvement regarding the prediction performance of the chain model combining soil Cd CaCl2 with Ca soil to predict the bioaccessible Cd concentration in maize grain (R 2 = 0.344 for the gastric phase and R 2 = 0.356 for the gastrointestinal phase), our findings provide a useful reference to further explore a model that can be used for a relatively rapid and reliable estimation of dietary Cd exposure for specific regions prior to crop harvest.

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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%

“…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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Legacy of multiple heavy metal(loid)s contamination and ecological risks in farmland soils from a historical artisanal zinc smelting area

Cited by 120 publications

References 49 publications

CH4 isotopic signatures of emissions from oil and gas extraction sites in Romania

CH4 isotopic signatures of emissions from oil and gas extraction sites in Romania

Evaluation of Cadmium Transfer from Soil to the Human Body Through Maize Consumption in a Cadmium Anomaly Area of Southwestern China

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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