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

Toxics, Год журнала: 2024, Номер 12(1), С. 62 - 62

Опубликована: Янв. 12, 2024

This study investigated the occurrence and distribution of rare earth elements (REEs), including 14 lanthanoids, scandium (Sc), yttrium (Y), in groundwater around a large coal-fired thermal power plant (TPP). The ICP-MS technique was used to analyze 16 REEs samples collected from monitoring wells. REE concentrations ranged 59.9 758 ng/L, with an average 290 ng/L. most abundant Sc, followed by La, accounting for 54.2% 21.4% total concentration, respectively. Geospatial analysis revealed enrichment at several hotspots near TPP. highest were observed TPP ash landfill, decreasing distance landfill. fractionation ratios anomalies suggested Light dominance, comprising over 78% REEs. Correlation principal component analyses indicated similar behavior sources Health risk assessment found hazard indices (HI) 1.36 × 10

Язык: Английский

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Biochemical and biophysical interaction of rare earth elements with biomacromolecules: A comprehensive review

Chemosphere, Год журнала: 2024, Номер 357, С. 142090 - 142090

Опубликована: Апрель 20, 2024

Язык: Английский

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Kinetic and Affinity Profiling Rare Earth Metals Using a DNA Aptamer

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Rare earth elements (REEs) are widely used in various high-tech industries. Developing affinity ligands that can detect and distinguish REEs is at the forefront of analytical chemistry. It also interesting to understand limits natural biomolecules for recognition REEs. In this study, Sc

Язык: Английский

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Geographical Origin Authentication—A Mandatory Step in the Efficient Involvement of Honey in Medical Treatment

Foods, Год журнала: 2024, Номер 13(4), С. 532 - 532

Опубликована: Фев. 9, 2024

Nowadays, in people's perceptions, the return to roots all aspects of life is an increasing temptation. This tendency has also been observed medical field, despite availability high-level services with many years research, expertise, and trials. Equilibrium found combination two tendencies through inclusion scientific experience advantages benefits provided by nature. It well accepted that nutritional medicinal properties honey are closely related botanical origin plants at base production. Despite this, people perceive as a natural subsequently simple product from chemical point view. In reality, very complex matrix containing more than 200 compounds having high degree compositional variability function its origin. Therefore, when discussing honey, importance geographical link honey's composition, due potential emerging contaminants such Rare Earth Elements (REEs), should be considered. work offers critical view on use superfood, direct relationship

Язык: Английский

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Ecological and Health Risks Attributed to Rare Earth Elements in Coal Fly Ash

Toxics, Год журнала: 2024, Номер 12(1), С. 71 - 71

Опубликована: Янв. 15, 2024

The occurrence and distribution of yttrium rare earth elements (REYs), along with major heavy metal(loid)s (HMs) in coal fly ash (CFA) from five coal-fired power plants (CFPPs), were analyzed, the REY-associated ecological health risks assessed. individual REYs CFA abundant following order: Ce > La Nd Y Pr Gd Sm Dy Er Yb Eu Ho Tb Tm Lu. total REY content ranged 135 to 362 mg/kg, averaging 302 mg/kg. mean light-to-heavy ratio was 4.1, indicating prevalent light enrichment CFA. Significantly positive correlations between suggested that they coexist share similar origins estimated pose low moderate risks, risk index (RI) values ranging 66 245. hazard (HI) target cancer (TCR) CFA, be higher for children (HIc = 0.15, TCRc 8.4 × 10−16) than adults (HIa 0.017, TCRa 3.6 10−16), well below safety limits (HI 1, TCR 1.0 10−6). However, danger human posed by HMs same samples 5.74, 2.6 10−4, 1.1 10−4) exceeded safe thresholds (excl. HIa 0.63). RI HI attributed 14% 2.6%, respectively, include HMs.

Язык: Английский

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Multi-modal investigation of the bone micro- and ultrastructure, and elemental distribution in the presence of Mg-xGd screws at mid-term healing stages

Bioactive Materials, Год журнала: 2024, Номер 41, С. 657 - 671

Опубликована: Сен. 3, 2024

Magnesium (Mg) - based alloys are becoming attractive materials for medical applications as temporary bone implants support of fracture healing, e.g. a suture anchor. Due to their mechanical properties and biocompatibility, they may replace titanium or stainless-steel implants, commonly used in orthopedic field. Nevertheless, patient safety has be assured by finding long-term balance between metal degradation, osseointegration, ultrastructure adaptation element distribution organs. In order determine the implant behavior its influence on tissues, we investigated two Mg with gadolinium contents 5 10 wt percent comparison permanent polyether ether ketone. The were present rat tibia 10, 20 32 weeks before sacrifice animal. Synchrotron radiation-based micro computed tomography enables distinction features like residual metal, degradation layer structure. Additionally, X-ray diffraction fluorescence yield information parameters describing elemental composition at bone-to-implant interface. Finally, specific mass spectrometry, elements accumulation main organs tissues traced. results show that Mg-xGd degrade

Язык: Английский

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Hair-biomonitoring assessment of rare-earth-element exposure in residents of the largest rare-earth mining and smelting area of China

Environment International, Год журнала: 2023, Номер 179, С. 108177 - 108177

Опубликована: Сен. 1, 2023

The long-term and large-scale mining of rare earth minerals may lead to an accumulation elements (REEs) in the environment, posing potential health risks residents. We collected scalp hair (n = 254) from residents a smelting area, reference area clarify human exposure REEs. concentrations 15 REEs investigated samples were notably higher areas than area. Significant differences between some observed areas, for instance, cerium (Ce), dysprosium, praseodymium. In study different sources be one factors that contributed variations REE correlations clusters hair. Furthermore, Ce decreased with increasing age children. However, adults increased age. contrast, continuously residents' Regression results indicated location more important sex when considering influence on this help policymakers implement guidelines alleviate areas.

Язык: Английский

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Toxic Effects of Rare Earth Elements on Human Health

Опубликована: Март 12, 2024

Rare earth elements (REEs) are a type of new material resources, which have attracted significant attention in recent years. REEs emerged as essential metals modern-day technology due to their unique functions. Long-term large-scale mining and utilization rare earths caused serious environmental pollution constitutes global health issue, raised concerns about human safety. However, the toxicity profile suspended particulate matter environment interacts with body remain largely unknown. Studies shown that can enter through variety pathways, leading organ system dysfunctions changes genetics, epigenetics, signaling pathways. Through an extensive literature search critical analysis, we provide comprehensive overview available evidence, identify knowledge gaps, make recommendations for future research directions.

Язык: Английский

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Foliar Exposure of Deuterium Stable Isotope-Labeled Nanoplastics to Lettuce: Quantitative Determination of Foliar Uptake, Transport, and Trophic Transfer in a Terrestrial Food Chain

Environmental Science & Technology, Год журнала: 2024, Номер 58(35), С. 15438 - 15449

Опубликована: Авг. 22, 2024

Nanoplastics (NPs) are widely detected in the atmosphere and likely to be deposited on plant leaves. However, our understanding of their foliar uptake, translocation, trophic transfer profiles is limited due a lack quantitative analytical tools effectively probe mechanisms action. Here, using synthesized deuterium (

Язык: Английский

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Europium removal from aqueous solutions by oxidized biochar prepared from waste palm tree fronds

Sustainable Chemistry for the Environment, Год журнала: 2023, Номер 4, С. 100040 - 100040

Опубликована: Сен. 25, 2023

Palm oil is a product of major economic importance worldwide however, palm tree cultivation generates large quantities fronds as waste. In this work, the sorption Eu3+ from aqueous solutions by oxidized biochar derived was studied at pH 3 batch type experiments under ambient conditions. Following production, sample using HNO3 to increase oxygen-containing moieties on its surface. The characterized through surface and spectroscopic techniques. As indicated coefficient determination value 0.99, adsorption best described Langmuir isotherm model. optimum capacity determined qmax= 0.81 mol kg-1. Adsorption an entropy-driven process followed 2nd order kinetics, reaching plateau 50% relative within 60 min. Furthermore, Fourier Transform InfraRed data effect ionic strength that proceeded via development inner-sphere complexes between carboxylic groups

Язык: Английский

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