Concentration and mobility of trace elements (Li, Ba, Sr, Ag, Hg, B) and macronutrients (Ca, Mg, K) in soil-orchid system on different bedrock types

The expanding demand for new critical raw materials can lead to their increased release to the environment in the form of emerging environmental contaminants (EECs). However, there has never been a comprehensive study that takes into account the total EEC content, the content of various EEC fractions, their behaviour in floodplain soils, and potential ecological and human health risks. The occurrence, fractions, and influencing factors of the seven EECs (Li, Be, Sr, Ba, V, B, Se) originating from historical mining in floodplain soils of various ecosystems (arable lands, grasslands, riparian zones, contaminated sites) were investigated. Based on the evaluation of the overall levels of EECs (potentially toxic elements) in comparison to the soil guideline values set by European legislation for Be, Ba, V, B, and Se, it was found that only Be did not exceed the recommended limits. Among the elements analyzed, Li had the highest average contamination factor (CF) of 5.8, followed by Ba with 1.5 and B with 1.4. Particularly concerning was the discovery of a potential serious health risk associated with Li exposure for children, as indicated by hazard quotients ranging from 0.128 to 1.478. With the exception of Be and Se, the partitioning of the EECs into the different fractions revealed that the EECs are primarily bound with the residual fraction. Be (13.8%) had the highest percentage of exchangeable fraction as the most bioavailable in the first soil layer, followed by Sr (10.9%), Se (10.2%), Ba (10.0%), and B (2.9%). The most frequently observed correlations were between EEC fractions and pH/KCl, followed by soil organic carbon and manganese hydrous oxides. Variance analyses confirmed the impact of different ecosystems on EEC total content and fractions.

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“…This method is still being increasingly applied in EEC analyses (e.g. Chen et al 28 , Mikavica et al 29 , Xiong et al 30 ). Table 7.…”

Section: Discussionmentioning

confidence: 99%

Critically raw materials as potential emerging environmental contaminants, their distribution patterns, risks and behaviour in floodplain soils contaminated by heavy metals

Kanianska

Drimal

Varga

et al. 2023

Sci Rep

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“…Heavy metals are extracted from soil using a variety of methods (Yalcin et al, 2008;Qi & Zhao, 2020;Pehoiu et al, 2020;Sharma, 2020;Yalcin et al, 2020;Mikavica et al, 2023;Uras & Yalcin, 2022;Mileti´c et al, 2024;Timofeeva et al, 2024). Phytoremediation illustrates each plant's capacity to remove metals based on its physiological, genetic, anatomical and morphological characteristics.…”

Section: Introductionmentioning

confidence: 99%

Strontium Accumulations by Teucrium polium which Grows Naturally in Serpentine Soils

Konakcı

2024

Gazi University Journal of Science Part A: Engineering and Innovation

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The study area is the region where Turkey's most important chrome deposits are located, and extensive serpentine soils are widespread in the region. ın this study, strontium uptake accumulations in the roots and shoots of the Teucrium polium plant growing on serpentine soils in the region were examined.In this context, the soil, roots and shoots of 17 Teucrium polium plants growing on serpentine soils were collected and chemically analyzed for strontium. Chemical analyzes were carried out in ICP-MS (Inductively Coupled Plasma-Mass Spectrometry). On average, strontium values of 15.2 ppm in the soil, 26.4 in the root and 76.3 ppm in the shoots were detected. Strontium enrichment values in the soil, roots and shoots of this plant were determined as 1.8 for ECR, 5.3 for ECS and 2.9 for TLF. This study shows that the Teucrium polium plant accumulates significant amounts of strontium from the soil, both in the root and in the shoots. As a result, this plant can be used as a bioaccumulator plant, especially in the reclamation of strontium-polluted soils and the improvement of such areas.

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Identification of cadmium phytoavailability in response to cadmium transformation and changes in soil pH and electrical conductivity

Yan,

Ding,

Xie

et al. 2023

Chemosphere

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Concentration and mobility of trace elements (Li, Ba, Sr, Ag, Hg, B) and macronutrients (Ca, Mg, K) in soil-orchid system on different bedrock types

Cited by 5 publications

References 61 publications

Critically raw materials as potential emerging environmental contaminants, their distribution patterns, risks and behaviour in floodplain soils contaminated by heavy metals

Critically raw materials as potential emerging environmental contaminants, their distribution patterns, risks and behaviour in floodplain soils contaminated by heavy metals

Strontium Accumulations by Teucrium polium which Grows Naturally in Serpentine Soils

Identification of cadmium phytoavailability in response to cadmium transformation and changes in soil pH and electrical conductivity

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