Rhizobia population was favoured during in situ phytoremediation of vanadium-titanium magnetite mine tailings dam using Pongamia pinnata

Yu, Xiumei; Kang, Xueyan; Li, Yanmei; Cui, Yongliang; Tu, Weiguo; Shen, Tian; Yan, Min; Gu, Yunfu; Zou, Likou; Ma, Menggen; Xiang, Quanju; Zhao, Ke; Liang, Yueyang; Zhang, Xiaoping; Chen, Qiang

doi:10.1016/j.envpol.2019.113167

Cited by 45 publications

(17 citation statements)

References 51 publications

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“…Vanadium is a strategically important metal that is widely used in modern society in the production of steel alloys and sulfuric acid (Zhang et al, 2009;Watt et al, 2018;Mikkonen et al, 2019). Vanadium resources occur worldwide in mineral and hydrocarbon deposits, with China, South Africa, and Russia the largest producers of vanadium products (Moskalyk and Alfantazi, 2003;Yu et al, 2019). Increasing demand for vanadium has promoted intensive mining and smelting activities (Zhang et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Vanadium contamination and associated health risk of farmland soil near smelters throughout China

Zhang

Liu

et al. 2020

Environmental Pollution

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Whereas there is broad consensus that smelting causes serious soil contamination during vanadium production, little is known about the vanadium content of soil near smelters and the associated health risk at continental scale. This study is the first to map the distribution of vanadium in farmland soil surrounding smelters throughout mainland China, and assess the associated health risk. Analysis of 76 samples indicated that the average vanadium content in such soil was 115.5 mg/kg -far higher than the 82 mg/kg background content in China (p < 0.05). Southwest China (198.0 mg/kg) and North China (158.3 mg/kg) possessed highest vanadium contents.Vanadium content was strongly related to longitude, altitude, and atmospheric temperature. The reducible fraction accounted for the largest percentages in vanadium speciation. The average Pollution Load Index for all samples was 1.51, denoting significant metal enrichment. The Children's hazard index was higher than unity, indicating elevated health risk. The relative contribution of vanadium to the total health risk ranged from 6.02% to 34.5%, while nickel and chromium were the two main contributors in most regions. This work may serve as a model providing an overview of continental vanadium contamination around smelters, and draw attention to their possible health risks.

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Section: Introductionmentioning

confidence: 99%

Vanadium contamination and associated health risk of farmland soil near smelters throughout China

Zhang

Liu

et al. 2020

Environmental Pollution

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“…Nevertheless, it is economically important because it is employed mostly in the steel sector in alloy manufacturing. Moskalyk et al 73 and Yu et al 74 outlined that vanadium reserves are discovered in mineral and hydrocarbon deposits worldwide, especially China, South Africa, and Russia, the biggest vanadium derivatives producers. The maximum vanadium value recorded is higher than the EAV threshold, implying that anthropogenic sources are augmenting the geogenic sources to elevate vanadium levels in certain areas of the study area near the steel plant.…”

Section: Resultsmentioning

confidence: 99%

A geostatistical approach to estimating source apportionment in urban and peri-urban soils using the Czech Republic as an example

Agyeman

John

Kebonye

et al. 2021

Sci Rep

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Unhealthy soils in peri-urban and urban areas expose individuals to potentially toxic elements (PTEs), which have a significant influence on the health of children and adults. Hundred and fifteen (n = 115) soil samples were collected from the district of Frydek Mistek at a depth of 0–20 cm and measured for PTEs content using Inductively coupled plasma—optical emission spectroscopy. The Pearson correlation matrix of the eleven relevant cross-correlations suggested that the interaction between the metal(loids) ranged from moderate (0.541) correlation to high correlation (0.91). PTEs sources were calculated using parent receptor model positive matrix factorization (PMF) and hybridized geostatistical based receptor model such as ordinary kriging-positive matrix factorization (OK-PMF) and empirical Bayesian kriging-positive matrix factorization (EBK-PMF). Based on the source apportionment, geogenic, vehicular traffic, phosphate fertilizer, steel industry, atmospheric deposits, metal works, and waste disposal are the primary sources that contribute to soil pollution in peri-urban and urban areas. The receptor models employed in the study complemented each other. Comparatively, OK-PMF identified more PTEs in the factor loadings than EBK-PMF and PMF. The receptor models performance via support vector machine regression (SVMR) and multiple linear regression (MLR) using root mean square error (RMSE), R square (R2) and mean square error (MAE) suggested that EBK-PMF was optimal. The hybridized receptor model increased prediction efficiency and reduced error significantly. EBK-PMF is a robust receptor model that can assess environmental risks and controls to mitigate ecological performance.

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“…After remediation, overall soil health conditions significantly improved: available N and P contents increased, enzyme activities were found and microbial carbon and nitrogen content also increased. This study indicated that legume phytoremediation can effectively cause microbial communities to shift in favor of rhizobia in HM-contaminated soil [ 34 ].…”

Section: Phytoextraction Technologymentioning

confidence: 99%

Increase in Phytoextraction Potential by Genome Editing and Transformation: A Review

Venegas-Rioseco

Ginocchio

Ortiz-Calderón

2021

Plants

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Soil metal contamination associated with productive activities is a global issue. Metals are not biodegradable and tend to accumulate in soils, posing potential risks to surrounding ecosystems and human health. Plant-based techniques (phytotechnologies) for the in situ remediation of metal-polluted soils have been developed, but these have some limitations. Phytotechnologies are a group of technologies that take advantage of the ability of certain plants to remediate soil, water, and air resources to rehabilitate ecosystem services in managed landscapes. Regarding soil metal pollution, the main objectives are in situ stabilization (phytostabilization) and the removal of contaminants (phytoextraction). Genetic engineering strategies such as gene editing, stacking genes, and transformation, among others, may improve the phytoextraction potential of plants by enhancing their ability to accumulate and tolerate metals and metalloids. This review discusses proven strategies to enhance phytoextraction efficiency and future perspectives on phytotechnologies.

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Rhizobia population was favoured during in situ phytoremediation of vanadium-titanium magnetite mine tailings dam using Pongamia pinnata

Cited by 45 publications

References 51 publications

Vanadium contamination and associated health risk of farmland soil near smelters throughout China

Vanadium contamination and associated health risk of farmland soil near smelters throughout China

A geostatistical approach to estimating source apportionment in urban and peri-urban soils using the Czech Republic as an example

Increase in Phytoextraction Potential by Genome Editing and Transformation: A Review

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