Rare Earth Elements in Soils

Hu, Zhengyi; Haneklaus, Silvia; Sparovek, Gerd; Schnug, Ewald

doi:10.1080/00103620600628680

Cited by 272 publications

(148 citation statements)

References 59 publications

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“…The potential effect of REE+Y on plant growth and their mechanisms for entering into biomass is of growing interest, particularly the uptake, distribution and accumulation of REE+Y in plants (Wyttenbach et al 1998;Tyler 2004;Tyler & Olsson 2005;Brioschi et al 2013;Wen et al 2001;Fu et al 2001;Censi et al 2014;Miao et al 2008;Miao et al 2011;Lima e Cunha et al 2014;Ding et al 2006;Hu et al 2006). Despite this, the REE+Y content of wild-growing plants in natural ecosystems is much less studied.…”

Section: Ree+y Translocation To Plantsmentioning

confidence: 99%

“…Thus, despite the well-established complexities of REE chemistry in soils (e.g., reflecting a combination of host mineral effects, pH controls, complexation) (Byrne and Sholkovitz, 1996;Deberdt et al, 2002;Elderfield et al, 1990;Lawrence and Kamber, 2006;Matsunaga et al, 2015;Noack et al, 2014;Pédrot et al, 2015a;Tricca et al, 1999) originating from igneous rock, sandstone, and shale tending to have higher REE contents than soils developed from loess and calcareous rock (Hu et al, 2006;Loell et al, 2011). In general, the high REE in the basalt-dominated soil indicates the most easily leachable REE fraction, which likely reflects the lack of poorly leachable REErich phases and the high abundance of Fe/Mn-oxy(hydroxides) with potentially adsorbed REE.…”

Section: Translocation Of Ree+y From Soil To Biomassmentioning

confidence: 99%

“…The REE concentrations of soil pore fluids and soil leaches are generally controlled by the solubility of REE-bearing minerals and therefore do not directly reflect the REE concentrations of the bulk soil (Braun et al, 1998). Nevertheless, leaching of soils in order to estimate the bioavailability of REE has been extensively studied -see Hu et al, (2006) and references for multiple examples contained therein. To empirically assess the bioavailability of Sr and the REE in soils, a common strategy is the use of leaching experiments.…”

Section: Estimating Element Bioavailability In Soilmentioning

confidence: 99%

“…Independently, the REE have emerged as a powerful tracer of water source, water mixing, and aqueous processes (e.g. Noack et al, 2014;Pourret et al, 2010;Tweed et al, 2006), in addition to chemical weathering process and soil formation (Babechuk et al, 2014;Condie, 1991;Hu et al, 2006;Laveuf and Cornu, 2009;Nesbitt, 1979), and studies of plant material (Brioschi et al, 2013;Miao et al, 2011;Squadrone et al, 2017;Thomas et al, 2014;Tyler, 2004).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

87Sr/86Sr and trace element mapping of geosphere-hydrosphere-biosphere interactions: A case study in Ireland

Ryan

Snoeck

Crowley

et al. 2018

Applied Geochemistry

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Section: Ree+y Translocation To Plantsmentioning

confidence: 99%

Section: Translocation Of Ree+y From Soil To Biomassmentioning

confidence: 99%

Section: Estimating Element Bioavailability In Soilmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

87Sr/86Sr and trace element mapping of geosphere-hydrosphere-biosphere interactions: A case study in Ireland

Ryan

Snoeck

Crowley

et al. 2018

Applied Geochemistry

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“…Natural contents of rare earth elements (REE) in soils are highly influenced by their parent materials, weathering state and pedogenetic processes, texture, and contents of organic matter and clay minerals (Hu et al, 2006). Furthermore, several studies have documented a gradual A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT Fadigas et al, 2002 andPaye et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Distribution and fractionation of the rare earth elements in Brazilian soils

Paye

Mello

Mascarenhas

et al. 2016

Journal of Geochemical Exploration

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The distribution and fractionation of Sc, Y and 14 rare earth elements (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu) were investigated in 144 samples (topsoil and subsoil) from 88 sites distributed across Brazil. Although, a wide range of natural variability in REE content was observed, overall the REE median contents were relatively low compared with those reported in soils form other parts of the world. The REE contents in Brazilian soils showed significant correlation mainly with Fe, Mn and Ti oxides, as well as organic matter. REE distribution in soils basically depend on the parent material, while fractionation of individual REEs depend on soil characteristics that are partly influenced by pedogenic process. Soils developed from alkaline igneous rocks showed the highest average content of REEs followed by sedimentary rocks, unconsolidated clay sediments, metamorphic rocks, basic igneous rocks, unconsolidated sand and silt sediments, and acid igneous rocks. REE normalized patterns varied significantly within each geological formation, except for soils derived from alkaline igneous rocks. The greatest variations were observed in the light REEs. Graphic inspection using exploratory data analysis tools such as Q-Q normal plots and boxplots was effective to recognize patterns and identify different data groups, determine threshold values and thus define the range of the background REE variability. The data set generated in this study may be used as a preliminary reference for regulatory actions in the Brazilian environmental legislation.

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Predicting contamination by the fuel additive cerium oxide engineered nanoparticles within the United Kingdom and the associated risks

Johnson

Park²

2012

Enviro Toxic and Chemistry

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As a fuel additive, cerium oxide nanoparticles may become widely dispersed throughout the environment. Commercial information from the United Kingdom (UK) on the use of cerium oxide nanoparticles was used to perform a modeling and risk assessment exercise. Discharge from exhausts took into account the likely removal by filters fitted to these vehicles. For predicting current soil exposure, scenarios were examined, ranging from dispersion occurring across the entire UK landmass to only within the urban area to only 20 m on either side of road networks. For soils, the highest predicted contamination level was 0.016 mg/kg within 20 m of a road following seven years of continuous deposition. This value would represent 0.027% of reported natural background cerium. If usage were to double for five more years, levels would not be expected to exceed 0.04 mg/kg. River water contamination considered direct aerial deposition and indirect contamination via runoff in the water and entrained soil sediment, with the highest level of 0.02 ng/L predicted. The highest predicted water concentration of 300 ng/L was associated with water draining from a road surface, assuming a restricted deposition spread. These predictions are well below most toxicological levels of concern.

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Rare Earth Elements in Soils

Cited by 272 publications

References 59 publications

87Sr/86Sr and trace element mapping of geosphere-hydrosphere-biosphere interactions: A case study in Ireland

87Sr/86Sr and trace element mapping of geosphere-hydrosphere-biosphere interactions: A case study in Ireland

Distribution and fractionation of the rare earth elements in Brazilian soils

Predicting contamination by the fuel additive cerium oxide engineered nanoparticles within the United Kingdom and the associated risks

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