Heavy metal speciation, risk, and bioavailability in the sediments of rivers with different pollution sources and intensity

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Heavy metal speciation, risk, and bioavailability in the sediments of rivers with different pollution sources and intensity
	Tang, Wenzhong; Shan, Baoqing; Zhang, Hong; Zhu, Xiaolei; Li, Shanshan
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2016-12
卷号	23 期号:23 页码:23630-23637
关键词	Heavy metals Speciation Bioavailability Pollution sources Sediments
英文摘要	A comprehensive analysis of heavy metal speciation, risk, and bioavailability in the sediments of three rivers in northern China (Shaocun River (SR), Wangyang River (WR), and Xiao River (XR)) was conducted. The results showed that higher pollution input resulting from urbanization and industrialization caused higher heavy metal contents and bioavailable proportion in the studied sediments. Total contents of all studied metals (Cr, Cu, Ni, Pb, and Zn) in the sediments of SR, WR, and XR were 270.31, 902.62, and 2367.46 mg/kg, respectively. The average percentages of bioavailable fractions were 31.16, 61.73, and 81.69 %, respectively. Cr, Ni, and Pb were all mainly observed in the B4 (residual) fraction in the studied sediments, with an average percentage of 42.03, 48.19, and 55.08 %, respectively. Cu was mainly observed in the B2 (reducible) fraction (40.53 %). Zn was mainly observed in the B1 (exchangeable/acid soluble/carbonate) fraction (36.01 %), resulting in medium or high risk associated with Zn in the sediments of SR, WR, and XR. Sedimentary heavy metal risk and bioavailability associated with regional urbanization and industrialization should be taken into consideration with respect to the health of aquatic ecosystems.
收录类别	SCI
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/36048]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Tang, Wenzhong,Shan, Baoqing,Zhang, Hong,et al. Heavy metal speciation, risk, and bioavailability in the sediments of rivers with different pollution sources and intensity[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2016,23(23):23630-23637.
APA	Tang, Wenzhong,Shan, Baoqing,Zhang, Hong,Zhu, Xiaolei,&Li, Shanshan.(2016).Heavy metal speciation, risk, and bioavailability in the sediments of rivers with different pollution sources and intensity.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,23(23),23630-23637.
MLA	Tang, Wenzhong,et al."Heavy metal speciation, risk, and bioavailability in the sediments of rivers with different pollution sources and intensity".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 23.23(2016):23630-23637.