Elevated lead mobility in sediments of a eutrophic drinking water reservoir during spring and summer seasons: Insights from isotopic signatures
文献类型：期刊论文
| 作者 | Tao, Zhenghua1,4,5; Peng, Guogan4; Chen, Fengyuan4; Guo, Qingjun1; Wei, Rongfei1; Pan, Ke4; Deng, Yinan3; Jiao, Linlin2; Zhang, Zhen4; Chen, Shanshan4 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2024-08-15 |
| 卷号 | 475页码:134833 |
| 关键词 | Lead pollution Lead isotopes Lake sediment Seasonal fluctuations Algae |
| DOI | 10.1016/j.jhazmat.2024.134833 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | Lead (Pb) pollution in sediments remains a major concern for ecosystem quality due to the robust interaction at the sediment/water interface, particularly in shallow lakes. However, understanding the mechanism behind seasonal fluctuations in Pb mobility in these sediments is lacking. Here, the seasonal variability of Pb concentration and isotopic ratio were investigated in the uppermost sediments of a shallow eutrophic drinking lake located in southeast China. Results reveal a sharp increase in labile Pb concentration during autumn-winter period, reaching similar to 3-fold higher levels than during the spring-summer seasons. Despite these fluctuations, there was a notable overlap in the Pb isotopic signatures within the labile fraction across four seasons, suggesting that anthropogenic sources are not responsible for the elevated labile Pb concentration in autumn-winter seasons. Instead, the abnormally elevated labile Pb concentration during autumn-winter was probably related to reduction dissolution of Fe/Mn oxides, while declined labile Pb concentration during spring-summer may be attributed to adsorption/precipitation of Fe/Mn oxides. These large seasonal changes imply the importance of considering seasonal effects when conducting sediment sampling. We further propose a solution that using Pb isotopic signatures within the labile fraction instead of the bulk sediment can better reflect the information of anthropogenic Pb sources. |
| WOS关键词 | HEAVY-METAL POLLUTION ; CONTAMINATED SEDIMENTS ; SOURCE APPORTIONMENT ; SURFICIAL SEDIMENTS ; DISSOLVED-OXYGEN ; INDUSTRIAL LEAD ; RIVER ESTUARY ; PB ISOTOPES ; LAKE ; CHINA |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| WOS记录号 | WOS:001259135000001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/206103]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 通讯作者 | Xia, Tianxiang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China 2.North China Univ Sci & Technol, Coll Min Engn, Tangshan 063210, Peoples R China 3.Guangzhou Marine Geol Survey, MNR Key Lab Marine Mineral Resources, Guangzhou 510075, Peoples R China 4.Shenzhen Univ, Inst Adv Study, Shenzhen Key Lab Marine Microbiome Engn, Shenzhen 518060, Peoples R China 5.Beijing Municipal Res Inst Ecoenvironm Protect, Beijing Key Lab Risk Modeling & Remediat Contamina, Beijing 100037, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tao, Zhenghua,Peng, Guogan,Chen, Fengyuan,et al. Elevated lead mobility in sediments of a eutrophic drinking water reservoir during spring and summer seasons: Insights from isotopic signatures[J]. JOURNAL OF HAZARDOUS MATERIALS,2024,475:134833. |
| APA | Tao, Zhenghua.,Peng, Guogan.,Chen, Fengyuan.,Guo, Qingjun.,Wei, Rongfei.,...&Xia, Tianxiang.(2024).Elevated lead mobility in sediments of a eutrophic drinking water reservoir during spring and summer seasons: Insights from isotopic signatures.JOURNAL OF HAZARDOUS MATERIALS,475,134833. |
| MLA | Tao, Zhenghua,et al."Elevated lead mobility in sediments of a eutrophic drinking water reservoir during spring and summer seasons: Insights from isotopic signatures".JOURNAL OF HAZARDOUS MATERIALS 475(2024):134833. |
入库方式： OAI收割
来源：地理科学与资源研究所
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