成果归属作者：

郭华明

成果归属机构：

水资源与环境学院

作者：

Liu, Haiyan ; Guo, Huaming ; Pourret, Olivier ; Wang, Zhen

单位：

East China Univ Technol, State Key Lab Nucl Resources & Environm, Nanchang 330013, Peoples R China;East China Univ Technol, Jiangxi Prov Key Lab Genesis & Remediat Groundwate, Nanchang 330013, Peoples R China;East China Univ Technol, Sch Water Resources & Environm Engn, Nanchang 330013, Peoples R China;China Univ Geosci Beijing, MWR Key Lab Groundwater Conservat, Beijing 100083, Peoples R China;China Univ Geosci Beijing, Sch Water Resources & Environm, Beijing 100083, Peoples R China;UniLaSalle, AGHYLE, Beauvais, France

关键词：

NEPHROGENIC SYSTEMIC FIBROSIS; HEALTH-RISK ASSESSMENT; POYANG LAKE; RHINE RIVER; GADOLINIUM ANOMALIES; SPATIAL PROPAGATION; REE FRACTIONATION; SUSPENDED LOADS; GANJIANG RIVER; MINING AREA

摘要：

Limited knowledge exists regarding the potential risks associated with anthropogenic release of rare earth elements (REEs) in the environment. This study aimed to investigate REE signatures in the watershed Poyang Lake, the largest freshwater lake in China. Samples of surface water, wastewater, and groundwater were collected from five rivers discharging into the lake. Results revealed wastewater from wastewater treatment plants contained total REE concentrations from 231 to 904 mu g/L, exceeding those found in surface water (0.4 to 1.3 mu g/L) and groundwater (0.5 to 416 mu g/L). Samples with elevated REE were found in Ca-Mg-Cl/SO4 type waters and exhibited an 18O-D deviation from local meteoric water line. Wastewater exhibited a higher positive Gd anomaly compared to surface water and groundwater, attributed to anthropogenic input of Gd (Gdanth). The determined Gdanth concentration ranged from 0.04 to 0.21 mu g/L, and from 0.06 to 0.37 mu g/L, accounting for 4 % to 21 % and 49 % to 84 % of total Gd concentrations in groundwater and surface water, respectively. Gdanth concentration in wastewater (0.19 to 0.43 mu g/L) remained constant in effluent after wastewater treatment. Surface water displayed relatively complex normalized REE patterns influenced by anthropogenic activities and natural processes (weathering and complexation), while groundwater exhibited heavy REEs enrichment, due to carbonate solution complexation. Additionally, Gdanth concentration showed a positive correlation with Sigma REE, Pb, Ni, and Co concentrations in groundwater, indicating a good pollution tracing potential. Health risk assessment using the hazard quotient (HQ) suggested higher HQGd values in groundwater compared to surface water. Residents in the eastern part of Poyang Lake were found to face higher risks associated with Gd in groundwater compared to the western part, with infants and children at greater risk than adult males and females. These findings offer valuable insights into environmental behavior and health risks of REEs in aquatic systems impacted by human activities.

基金：

National Natural Science Foundation of China [42262029, 41902243]; Natural Science Foundation of Jiangxi Province, China [20232BAB203066, 20202BABL211018]; East China University of Technology Research Foundation for Advanced Talents [DHBK2019094, SHT201901]; Jiangxi Provincial Key Laboratory of Genesis [2023SSY02041]

语种：

英文

DOI：

10.1016/j.scitotenv.2024.175063

来源：

SCIENCE OF THE TOTAL ENVIRONMENT,2024():.

出版日期：

2024-11-01

提交日期：

2024-08-21

引用参考：

Liu, Haiyan; Guo, Huaming; Pourret, Olivier; Wang, Zhen. Anthropogenic impact of rare earth elements on groundwater and surface water in the watershed of the largest freshwater lake in China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024():.