Thorium content in soil, water and sediment samples and fluvial sediment-associated transport in a catchment system with a semiarid-coastal interface, Brazil

Nascimento, Ronaldo do; Silva, Yuri Jacques Agra Bezerra da; Nascimento, Clístenes Williams Araújo do; Silva, Ygor Jacques Agra Bezerra da; Collins, Adrian L.

doi:10.1007/s11356-019-06499-8

Cited by 10 publications

(2 citation statements)

References 49 publications

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“…Tailings are solid or liquid waste from mineral processing, usually stored in open sites without any protection measures, posing a major safety hazard [ 1 , 2 ]. Tailings contain a large amount of heavy metals, which enter the soil and groundwater through rainfall, runoff, and wind, interfering with the ecosystem and threatening the safety of human life and health [ 3 ]; therefore, the remediation of heavy metal-contaminated soil has become a global imperative [ 3 , 4 , 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Heavy Metal Stress on Physiology, Hydraulics, and Anatomy of Three Desert Plants in the Jinchang Mining Area, China

Gao

Wang

et al. 2022

IJERPH

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The physiological mechanisms and phytoremediation effects of three kinds of native quinoa in a desert mining area were studied. We used two different types of local soils (native soil and tailing soil) to analyze the changes in the heavy metal content, leaf physiology, photosynthetic parameters, stem hydraulics, and anatomical characteristics of potted quinoa. The results show that the chlorophyll content, photosynthetic rate, stomatal conductance, and transpiration rate of Kochia scoparia were decreased, but intercellular CO2 concentration (Ci) was increased under heavy metal stress, and the net photosynthetic rate (Pn) was decreased due to non-stomatal limitation. The gas exchange of Chenopodium glaucum and Atriplex centralasiatica showed a decrease in Pn, stomatal conductance (Gs), and transpiration rate (E) due to stomatal limitation. The three species showed a similar change in heavy metal content; they all showed elevated hydraulic parameters, decreased vessel density, and significantly thickened vessel walls under heavy metal stress. Physiological indicators such as proline content and activity of superoxide dismutase (SOD) and peroxidase (POD) increased, but the content of malondialdehyde (MDA) and glutathione (GSH), as well as catalase (CAT) activity, decreased in these three plants. Therefore, it can be concluded that these three species of quinoa, possibly the most dominant 30 desert plants in the region, showed a good adaptability and accumulation capacity under the pressure of heavy metal stress, and these plants can be good candidates for tailings remediation in the Jinchang desert mining area.

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Section: Introductionmentioning

confidence: 99%

Effects of Heavy Metal Stress on Physiology, Hydraulics, and Anatomy of Three Desert Plants in the Jinchang Mining Area, China

Gao

Wang

et al. 2022

IJERPH

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“…However, uranium, thorium, and REE levels of 630, 75, and 56500 mg kg −1 , respectively, have been detected in various surface soils, with the highest levels measured in some areas of the United States of America, Bulgaria, and China (Neves et al, 2009;Caldwell et al, 2012;Mihaylova et al, 2013;Sadeghi et al, 2013;Wang and Liang, 2015;Fiket et al, 2016;Ramos et al, 2016;Han et al, 2017;Brito et al, 2018;Kaishwa et al, 2018;Santos-Francés et al, 2018;Arome et al, 2019;Wang et al, 2019a;Freitas Rodrigo et al, 2021;Wang et al, 2022;Table 5). In sediments, U, Th, and REE values of up to 126, 12, and 4000 mg kg −1 , respectively, were detected, with the highest values measured in some areas of Malaysia, Thailand, and Japan (Zhu et al, 1997;Munksgaard et al, 2003;Borrego et al, 2005;Marmolejo-Rodríguez et al, 2007;Prego et al, 2009;Tranchida et al, 2011;Deepulal et al, 2012;Antonina et al, 2013;Kritsananuwat et al, 2014;Cordeiro et al, 2016;Sahu et al, 2016;Fiket et al, 2018b;Brito et al, 2018;El-Taher et al, 2018;El-Taher et al, 2019;Elias et al, 2019;Nascimento et al, 2019;Sivasamandy et al, 2019;Bergmann and Graça, 2020;Tanaka et al, 2020;Wu et al, 2020...…”

Section: Soil and Sedimentsmentioning

confidence: 99%

Occurrence of uranium, thorium and rare earth elements in the environment: A review

Patel

Sharma²,

Maity

et al. 2023

Front. Environ. Sci.

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Uranium, thorium, and rare earth elements (REEs) are important strategic elements in today’s world with a range of applications in high and green technology and power generation. The expected increase in demand for U, Th, and REEs in the coming decades also raises a number of questions about their supply risks and potential environmental impacts. This review provides an overview of the current literature on the distribution of these elements in different environmental compartments. For example, the processes of extraction, use, and disposal of U-, Th-, and REE-containing materials have been reported to result in elevated concentrations of these elements in air, in some places even exceeding permissible limits. In natural waters, the above processes resulted in concentrations as high as 69.2, 2.5, and 24.8 mg L−1 for U, Th, and REE, respectively, while in soils and sediments they sometimes reach 542, 75, and 56.5 g kg−1, respectively. While plants generally only take up small amounts of U, Th, and REE, some are known to be hyperaccumulators, containing up to 3.5 and 13.0 g kg−1 of U and REE, respectively. It appears that further research is needed to fully comprehend the fate and toxicological effects of U, Th, and REEs. Moreover, more emphasis should be placed on developing alternative methods and technologies for recovery of these elements from industrial and mining wastes.

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Assessing Soil Quality and Heavy Metal Contamination on Scheelite Mining Sites in a Tropical Semi-arid Setting

Nascimento

Cunha

Nascimento

et al. 2021

Water Air Soil Pollut

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Thorium content in soil, water and sediment samples and fluvial sediment-associated transport in a catchment system with a semiarid-coastal interface, Brazil

Cited by 10 publications

References 49 publications

Effects of Heavy Metal Stress on Physiology, Hydraulics, and Anatomy of Three Desert Plants in the Jinchang Mining Area, China

Effects of Heavy Metal Stress on Physiology, Hydraulics, and Anatomy of Three Desert Plants in the Jinchang Mining Area, China

Occurrence of uranium, thorium and rare earth elements in the environment: A review

Assessing Soil Quality and Heavy Metal Contamination on Scheelite Mining Sites in a Tropical Semi-arid Setting

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