气候变化领域集成服务门户(CCPortal): Accumulation, ecological health risks, and source identification of potentially toxic elements in river sediments of the Qinghai-Tibet Plateau, China

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DOI	10.1016/j.psep.2023.12.026
	Accumulation, ecological health risks, and source identification of potentially toxic elements in river sediments of the Qinghai-Tibet Plateau, China
	Cai, Na; Wang, Xueping; Wang, Weili; Wang, Lingqing; Tian, Shuhan; Zhu, Haixia; Zhang, Xiying
发表日期	2024
ISSN	0957-5820
EISSN	1744-3598
起始页码	703
结束页码	718
卷号	182
英文摘要	The Qarhan Salt Lake is the largest brine lake on the Qinghai-Tibet Plateau (QTP), which contains some potentially toxic elements (PTEs) due to the increase of human activities. This study endeavor encompassed the collection of 62 sediment samples from eight rivers that recharge the Qarhan Salt Lake, and the measurement of seven PTEs' concentrations (As, Hg, Pb, Cd, Cu, Ni, and Zn). Results indicated that the concentrations of most PTEs were lower than their local soil background values, except for Hg and Cd, which surpassed the background contents by 6.8 and 1.1 times, respectively. The Igeo and PLI outcomes demonstrated a relatively low level of Hg contamination. Hg was the most hazardous elements with the mean ecological risk factor of 273.88. The Hazard Index (HI) values for PTEs were computed at 0.20 and 0.46 for adults and children, respectively, indicating that neither group was at a non-carcinogenic risk. Through the utilization of source identification methods, this study identified three predominant sources responsible for PTEs in the area: natural geogenic sources, anthropogenic sources and atmospheric deposition inputs. The findings of this study provide a robust scientific foundation for the management of the ecological environment security of rivers in the QTP.
关键词	Qinghai-Tibet Plateau (QTP)Potentially toxic elements (PTEs)Sediments Risk assessment Source identification
英文关键词	HEAVY-METAL POLLUTION; SPATIAL-DISTRIBUTION; SOURCE APPORTIONMENT; AGRICULTURAL SOILS; SURFACE SEDIMENTS; GEOSTATISTICAL ANALYSES; TRACE-ELEMENTS; ROAD DUST; LAKE; CONTAMINATION
WOS研究方向	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:001137716400001
来源期刊	PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282883
作者单位	Chinese Academy of Sciences; Qinghai Institute of Salt Lakes, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chang'an University; Chang'an University; Ministry of Water Resources; Chang'an University; Ministry of Natural Resources of the People's Republic of China; Third Institute of Oceanography, Ministry of Natural Resources; Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; Qingdao University
推荐引用方式 GB/T 7714	Cai, Na,Wang, Xueping,Wang, Weili,et al. Accumulation, ecological health risks, and source identification of potentially toxic elements in river sediments of the Qinghai-Tibet Plateau, China[J],2024,182.
APA	Cai, Na.,Wang, Xueping.,Wang, Weili.,Wang, Lingqing.,Tian, Shuhan.,...&Zhang, Xiying.(2024).Accumulation, ecological health risks, and source identification of potentially toxic elements in river sediments of the Qinghai-Tibet Plateau, China.PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,182.
MLA	Cai, Na,et al."Accumulation, ecological health risks, and source identification of potentially toxic elements in river sediments of the Qinghai-Tibet Plateau, China".PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 182(2024).