Redistribution and enhanced bioavailability of rare earth elements speciation induced by mining-driven transformation in ionic rare earth mining areas.

ABSTRACT: Mining is an anthropogenic activity, that alters rare earth elements (REEs) distribution, changes the ecological environment of mining areas, and pollutes surrounding areas. However, the impacts of mining activities on REEs distribution and chemical morphological changes in mining soils are still poorly understood. In the present study, REEs fractionation and chemical speciation in both mining and unexploited soils were investigated through BCR sequential extraction. Most of the soil samples presented positive cerium (Ce) anomalies and negative europium (Eu) anomalies. The ratios of light rare earth elements (LREEs) to heavy rare earth elements (HREEs) and the total rare earth elements (TREEs) contents in mining soil were lower than those in unexploited soil. In unexploited soils, REEs wer

SUBMITTER: Wu Z 

PROVIDER: S-EPMC12301458 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature