数字农科院2.0

Potentially toxic elements in sediments of China's Shihe River: Urban-agricultural impact assessment and source apportionment

文献类型： 外文期刊

作者： Kai Zhang;Ge Ma;Zheng Chen;Jilu Wang;Xiaomeng Lou;Yinan Yang;Jiaojiao Feng;Fengxia Yang;Kuangjia Li;Chenxuan Shang;Rui Xin;Xiangmin Zhang

作者机构：

关键词： Anthropogenic contamination;Potentially toxic elements;River sediment;Source apportionment;Urban pollution

期刊名称： Journal of Contaminant Hydrology

ISSN： 0169-7722

年卷期： 2025 年 273 卷

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： This study investigated the pollution status of seven potentially toxic elements (PTEs) by analyzing eighteen sediment samples collected from urban and agricultural zones along an urban river in Xinyang, a major agrarian city. Results revealed that manganese (Mn), zinc (Zn), and chromium (Cr) exhibited the highest concentrations. Almost all PTEs exceeded regional background values, indicating anthropogenic contamination in the riverine system. Spatial analysis demonstrated 1.2- to 3.5-fold higher PTE concentrations in urban areas compared to agricultural zones, underscoring the predominant role of urban activities in pollution dynamics. Sequential extraction analysis identified residual fractions as the dominant phase for most PTEs, suggesting limited environmental mobility. However, Mn and cadmium (Cd) displayed elevated bioavailability through their association with non-residual fractions. The results of ecotoxicological risk methods classified Mn and Cd as priority pollutants, with urban hotspots reaching moderately to heavily contaminated status. The PCA-MLR analysis results demonstrated that sewage discharge and traffic-related sources are the primary anthropogenic contributors to PTEs contamination in the Shihe River. These findings advocating for targeted urban watershed management strategies to mitigate PTE risks in rapidly developing regions.

分类号：

  • 相关文献

[1]Integrated Risk Assessment Of Potentially T.oxic Elements And Particle P ollution In Urban Road Dust Of Megacity Of Pakistan. Ahmad, HR, Mehmood, K, Sardar, MF, Maqsood, MA, Rehman, MZU, Zhu, CX, Li, HN. 2019

[2]Potential sources and occurrence of macro-plastics and microplastics pollution in farmland soils: A typical case of China. Ren, Siyang,Wang, Kai,Zhang, Jinrui,Li, Jingjing,Zhang, Hanyue,Qi, Ruimin,Xu, Wen,Yan, Changrong,Liu, Xuejun,Zhang, Fusuo,Jones, Davey L.,Chadwick, David R.. 2023

[3]An exhaustive investigation on antibiotics contamination from livestock farms within sensitive reservoir water area: Spatial density, source apportionment and risk assessment. Keqiang Zhang,Rong Ruan,Zulin Zhang,Suli Zhi. 2022

[4]Spatiotemporal distribution, sources apportionment and ecological risks of PAHs: a study in the Wuhan section of the Yangtze River. Chen, Yulin,Song, Ranran,Li, Ping,Wang, Yile,Tan, Yang,Ma, Yongfei,Yang, Lie,Wu, Li,Du, Zhenjie,Qi, Xuebin,Zhang, Zulin. 2023

[5]Nationwide Investigation on Organophosphate Flame Retardants in Tea from China: Migration from Packaging Materials and Implications for Global Risk Assessment. Wang, Xin,Dong, Shujun,Zhu, Qingqing,Wu, Xingyi,Zhou, Wenfeng,Liao, Chunyang,Jiang, Guibin. 2024

[6]Organophosphate esters in milk across thirteen countries from 2020 to 2023: Concentrations, sources, temporal trends and ToxPi priority to humans. Yuxin Liu,Hongting Li,Yuhan Yin,Liang Zhao,Ruoxian Zhou,Yajing Cui,Yongjun Wang,Peilong Wang,Xiaomin Li. 2024

[7]A novel tiered ecological risk framework linking metal-driven pollution to soil microbial dynamics in a fragile ecosystem. Li Qian,Jinghan Wang,Yajuan Shi,Yonglong Lu,Ruoyu Liang,Qiuyun Xu,Xuan Zhou,Xuan Li,Xiuqing Shao. 2025

[8]Unveiling Human Exposure to Plasticizers through Drinking Tea: A Nationwide Study. Pan, Yitong,Dong, Shujun,Zhu, Qingqing,Tao, Le,Wu, Xingyi,Lu, Meichen,Liao, Chunyang,Jiang, Guibin. 2025

[9]Risk Assessment and Source Apportionment of Heavy Metals in Agricultural Soil Across Yinchuan, China. Yiming Liu,Tianzi Yin,Rongguang Shi,Yan Li,Jianjun Ma,Hong Li,Ke Yang,Shiyuan Ding,Xiaodong Li. 2025

[10]Spatial Distribution and Pollution Source Analysis of Heavy Metals in Cultivated Soil in Ningxia. Xiang Yue,Rongguang Shi,Jianjun Ma,Hong Li,Tiantian Ma,Junhua Ma,Xiangyu Liang,Cheng Ma. 2025

作者其他论文 更多>>