Coherent toxicity prediction framework for deciphering the joint effects of rare earth metals (La and Ce) under varied levels of calcium and NTA

Li, Jianqiu; He, Erkai; Romero‐Freire, Ana; Cao, Xinde; Zhao, Ling; Qiu, Hao

doi:10.1016/j.chemosphere.2020.126905

Cited by 13 publications

(7 citation statements)

References 54 publications

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“…Due to the geologic co-occurrence in feedstocks, the contamination of environmental mediums (e.g., sediment, water, soil) with REE mixtures has been reported in recent years and thereafter gained more attention (Amyot et al, 2017;Chao et al, 2016;Romero-Freire et al, 2018). Compared with the extensive ecotoxicity data for individual REEs, studies on the adverse effect of REE mixtures have been mainly focused on fungi (Bergsten-Torralba et al, 2020;d'Aquino et al, 2009), algae (Tai et al, 2010;Tan et al, 2017), microcrustaceans (Bergsten-Torralba et al, 2020), aquatic biota (Romero-Freire et al, 2019), and plants (Gong et al, 2020a(Gong et al, , 2020bHe et al, 2019;Li et al, 2020). Yet, our current understanding of the combined effects of REEs in the terrestrial environment, especially for soil organisms, is still lacking, which reinforces the demand for further research to obtain a full picture of their potential ecological risk.…”

Section: Introductionmentioning

confidence: 99%

Dynamic interaction processes of rare earth metal mixtures in terrestrial organisms interpreted by toxicokinetic and toxicodynamic model

Gong

Gestel

et al. 2021

Journal of Hazardous Materials

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Section: Introductionmentioning

confidence: 99%

Dynamic interaction processes of rare earth metal mixtures in terrestrial organisms interpreted by toxicokinetic and toxicodynamic model

Gong

Gestel

et al. 2021

Journal of Hazardous Materials

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“…[ 85 ]. Many studies have noted the ability of REEs to replace calcium ions in organisms [ 86 , 87 ], including in enzymes, thereby interfering with the normal physiological course of enzymatic reactions.…”

Section: Resultsmentioning

confidence: 99%

Conditions Affecting the Release of Heavy and Rare Earth Metals from the Mine Tailings Kola Subarctic

Krasavtseva

Maksimova

Макаров

2021

Toxics

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In the Kola Subarctic, a mining industry has developed, which is a source of environmental pollution with heavy metals. The objects of study were the tailings of three large mining enterprises in the region: apatite-nepheline, complex and loparite ores. The geotechnical characteristics were studied, and the granulometric composition of the samples was established. The main minerals that make up the material of ore dressing tailings have been determined. Using inductively coupled plasma mass spectrometry, the content of trace elements, in particular heavy metals and rare earth elements, has been established. The enrichment factor, the geoaccumulation indexes, the potential ecological risk index factor and the potential environmental hazard index have been calculated. Priority pollutants characteristics for specific objects have been identified. It is noted that the finely dispersed material of the tailings of loparite and complex ores is 1.5–3 times enriched in heavy and rare earth metals in comparison with the total material of the tailings. In laboratory conditions, experiments were carried out to simulate the process of interaction of dust particles with soil solutions containing different amounts of dissolved organic matter and at average seasonal temperatures. It was found that a decrease in the pH of the solution and an increase in the amount of organic carbon and temperature lead to the mobilization of heavy and rare earth metals from the tailings.

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“…Consequently, according to current scientific surveys, environmental standards should maintain La concentrations below 250 µM. Currently, the development of novel analytical technologies may expand the application of La and other REE in parallel 58 .…”

Section: Discussionmentioning

confidence: 99%

Lanthanum delays senescence and improves postharvest quality in cut tulip (Tulipa gesneriana L.) flowers

Gómez-Meriño

Castillo-González

Ramírez-Martínez

et al. 2020

Sci Rep

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We tested two sources of lanthanum (La), LaCl3 and La(NO3)3 × 6H2O at a concentration of 40 µM each, in the treatment solution of cut flowers of 15 tulip (Tulipa gesneriana L.) cultivars. Ascorbic acid (AsA; 0.2 g/L) was used as a reference solution, while distilled water was evaluated as an absolute control. With both La sources, bud length and diameter, and stem length were increased; as a result, stem curvature was also significantly increased with La treatments. The cultivars Laura Fygi and Rosario registered the highest relative stem elongation. Lalibela and Acropolis displayed the greatest stem curvature on the last day in vase. At 3, 5, 7, 9 and 11 days after cutting, the highest solution uptake was recorded in flower stems treated with LaCl3, surpassing the control by 5, 11, 15, 18 and 24%, respectively. The relative stem elongations observed were 21.3, 27.4, 35.2 and 35.5% in the control, AsA, LaCl3 and La(NO3)3, respectively. The mean solution uptake per gram of stem fresh biomass weight was 1.44, 1.44, 1.71 and 1.54 mL in the control, AsA, LaCl3 and La(NO3)3, respectively. LaCl3 significantly increased the bud length and solution uptake of flower stems, while La(NO3)3 × 6H2O increased stem fresh weight.

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Coherent toxicity prediction framework for deciphering the joint effects of rare earth metals (La and Ce) under varied levels of calcium and NTA

Cited by 13 publications

References 54 publications

Dynamic interaction processes of rare earth metal mixtures in terrestrial organisms interpreted by toxicokinetic and toxicodynamic model

Dynamic interaction processes of rare earth metal mixtures in terrestrial organisms interpreted by toxicokinetic and toxicodynamic model

Conditions Affecting the Release of Heavy and Rare Earth Metals from the Mine Tailings Kola Subarctic

Lanthanum delays senescence and improves postharvest quality in cut tulip (Tulipa gesneriana L.) flowers

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