Tropical mangrove forests as a source of dissolved rare earth elements and yttrium to the ocean

Dang, Duc Huy; Zhang, Zhirou; Wang, Wei; Oursel, Benjamin; Juillot, Farid; Dupouy, Cécile; Lemonnier, Hugues; Mounier, Stéphane

doi:10.1016/j.chemgeo.2021.120278

Cited by 8 publications

(2 citation statements)

References 65 publications

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“…The Eu/Eu* value varied between 6.05 and 117, with an average of 30.0. Positive Eu anomaly is widespread in waters and indicates a hydrogeochemical system that is yet to achieve an equilibrium state and the condition that represents rock dissolution [ 51 , 69 ].…”

Section: Resultsmentioning

confidence: 99%

Spatial Variability of Rare Earth Elements in Groundwater in the Vicinity of a Coal-Fired Power Plant and Associated Health Risk

Vesković,

Lučić,

Ristić

et al. 2024

Toxics

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This study investigated the occurrence and distribution of rare earth elements (REEs), including 14 lanthanoids, scandium (Sc), and yttrium (Y), in groundwater around a large coal-fired thermal power plant (TPP). The ICP-MS technique was used to analyze 16 REEs in groundwater samples collected from monitoring wells. REE concentrations ranged from 59.9 to 758 ng/L, with an average of 290 ng/L. The most abundant was Sc, followed by La, accounting for 54.2% and 21.4% of the total REE concentration, respectively. Geospatial analysis revealed the REE enrichment at several hotspots near the TPP. The highest REE concentrations were observed near the TPP and ash landfill, decreasing with the distance from the plant and the landfill. REE fractionation ratios and anomalies suggested the Light REE dominance, comprising over 78% of the total REEs. Correlation and principal component analyses indicated similar behavior and sources for most REEs. Health risk assessment found hazard indices (HI) of 1.36 × 10−3 and 1.98 × 10−3 for adults and children, respectively, which are far below the permissible limit (HI = 1). Likewise, incremental lifetime cancer risks (ILCR) were all below 1 × 10−6. Nevertheless, ongoing ash disposal and potential accumulation in the environment could elevate the REE exposure over time.

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Section: Resultsmentioning

confidence: 99%

Spatial Variability of Rare Earth Elements in Groundwater in the Vicinity of a Coal-Fired Power Plant and Associated Health Risk

Vesković,

Lučić,

Ristić

et al. 2024

Toxics

View full text Add to dashboard Cite

show abstract

“…Consequently, the global marine budget of REEs remains unbalanced (Johannesson and Burdige, 2007;Garcia-Solsona and Jeandel, 2020). In this context, specific environmental systems such as mangrove forests (Bosco-Santos et al, 2017;Mandal et al, 2019;Dang et al, 2021c) or coastal acid-sulphate soils (Morgan et al, 2016) might have significant contributions and need further investigation.…”

Section: Introductionmentioning

confidence: 99%

The seasonal variations in the interactions between rare earth elements and organic matter in tropical rivers

Dang,

Ha,

Némery

et al. 2023

Chemical Geology

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Rare earth elements in the North Atlantic, part I: Non-conservative behavior reveals margin inputs and deep waters scavenging

Lagarde,

Pham,

Lherminier

et al. 2024

Chemical Geology

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Tropical mangrove forests as a source of dissolved rare earth elements and yttrium to the ocean

Cited by 8 publications

References 65 publications

Spatial Variability of Rare Earth Elements in Groundwater in the Vicinity of a Coal-Fired Power Plant and Associated Health Risk

Spatial Variability of Rare Earth Elements in Groundwater in the Vicinity of a Coal-Fired Power Plant and Associated Health Risk

The seasonal variations in the interactions between rare earth elements and organic matter in tropical rivers

Rare earth elements in the North Atlantic, part I: Non-conservative behavior reveals margin inputs and deep waters scavenging

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