Development of a direct dilution method for the simultaneous determination of 40 metal and non-metallic elements in urine and blood samples within 6 minutes using ICP-MS: Application of comprehensive biomonitoring of elementomic phenotypes of individuals in paired biological samples.

Talanta, Год журнала: 2025, Номер 290, С. 127765 - 127765

Опубликована: Фев. 18, 2025

Язык: Английский

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Source, Transport, and Fractionation of Rare Earth Elements in Fluvial Sediments from a Typical Small Urban Basin (East Tiaoxi River, Eastern China)

Water, Год журнала: 2025, Номер 17(9), С. 1279 - 1279

Опубликована: Апрель 25, 2025

As emerging contaminants, rare earth elements (REEs) have undergone significant anthropogenic enrichment in aquatic systems. This study investigates the REE concentrations, major metal elements, and grain size surface sediments from East Tiaoxi (ETX) River eastern China, a small urban river subjected to substantial influences. Total concentrations of ranged 133.62 222.92 mg/kg with MREE HREE depletion. concentration fractionation were strongly correlated Ca, Fe, Mg, Mn, which may reflect control clay minerals, Fe-Mn oxides, specific heavy differences behavior between riparian riverbed highlighted impact hydrodynamic sorting chemical weathering on distribution. Anthropogenic activities, particularly urbanization, found increase especially at urban-adjacent sites (e.g., RBS2 RS2), while natural processes such as soil transport primarily contributed variation other sites. The factor ecological risk assessment revealed that moderate risks associated REEs occurred adjacent urbanized areas, though agricultural impacts less pronounced. findings emphasize combined influence urbanization distribution ETX basin underscore need prioritize urban-derived contamination environmental management strategies.

Язык: Английский

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Uncovering rare earth and precious metal in landfill-mined soil-like-fractions: distribution prediction, ecological risk and resource potential

Environmental Pollution, Год журнала: 2025, Номер 375, С. 126376 - 126376

Опубликована: Май 5, 2025

Язык: Английский

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Concentration and health risk assessment of 16 rare earth elements in six types of tea in China

Food and Chemical Toxicology, Год журнала: 2024, Номер 190, С. 114832 - 114832

Опубликована: Июнь 21, 2024

Язык: Английский

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The Bioaccumulation, Fractionation and Health Risk of Rare Earth Elements in Wild Fish of Guangzhou City, China

Animals, Год журнала: 2024, Номер 14(24), С. 3567 - 3567

Опубликована: Дек. 10, 2024

In this study, the total content of REEs ranged from 1.32 to 67.74 μg/kg, with a predominant presence light REEs. The ΔEu and ΔCe values, which exceeded approached 1, respectively, indicated positive Eu anomalies low Ce anomalies. Wild fish were categorized into high-, medium-, low-REEs-bioaccumulation groups using cluster analysis. Higher LRs/HRs coupled lower in high-bioaccumulation group suggested that increased bioaccumulation mitigated fractionation. Omnivorous higher levels broader feeding sources may enhance REE diminish Elevated concentrations demersal highlighted preferential accumulation benthic environment. Smaller but likely associated complex sources. Regression analysis revealed lengths weights less than 18 cm 130 g, more susceptible bioaccumulation. Despite ADI values indicating greater risk for children Pelteobagrus fulvidraco, all within 70 μg/(kg·d) consumption poses no risk. This study confirmed fractionation can be used trace their bioconversion.

Язык: Английский

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Distribution and migration of rare earth elements in sediment profile near a decommissioned uranium hydrometallurgical site in South China: Environmental implications

Journal of Environmental Management, Год журнала: 2024, Номер 366, С. 121832 - 121832

Опубликована: Июль 21, 2024

Язык: Английский

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