Geochemical speciation and risk assessment of metals in the river   sediments from Dan River Drainage, China

doi:10.1080/02757540.2015.1133613

CORC > 北京大学 > 地球与空间科学学院

	Geochemical speciation and risk assessment of metals in the river sediments from Dan River Drainage, China
	Meng, Qingpeng ; Zhang, Jing ; Feng, Jicheng ; Zhang, Zhaoyu ; Wu, Tairan
刊名	CHEMISTRY AND ECOLOGY
	2016
关键词	BCR sequential extraction risk assessment code (RAC) Dan River drainage surface sediment heavy metal SEQUENTIAL EXTRACTION PROCEDURE HEAVY-METALS SURFACE SEDIMENTS QINLING OROGEN SOURCE IDENTIFICATION CHEMICAL SPECIATION TECTONIC EVOLUTION STREAM SEDIMENTS TRACE-METALS E-WASTE
DOI	10.1080/02757540.2015.1133613
英文摘要	This study investigates the partitioning of metals in surface sediments from the Dan River drainage basin, the source of drinking water for the South to North Water Transfer Project, China, to determine their bioavailability and associated levels of risk. Sediment samples were collected from 99 sites along the Dan River, and the concentration of each element fraction was determined using sequential extraction and inductively coupled plasma-mass spectrometry. The residual fraction was the major phase for most metals sampled. Among the non-residual fractions, greater proportions of Zn, Mn and Cd were transported in in the available phase, whereas Ba, Sb, Pb and As were mainly found in the reducible phase. The oxidisable phase was important for the transport of Ni, Co, Cr and Cu in sediments. This analysis of sediments from the Dan River basin indicates a very high risk of pollution from Cd, Co, Mn, Sb and Zn. Combined with the sediments with extremely high concentrations, the Dan, Laoguan and Yinhua rivers, which have been affected by ore-mining activities, pose a very high risk to the surrounding areas and should be the subject of future studies.; National Natural Science Foundation of China [41372225]; China Scholarship Council [201406010057]; SCI(E); ARTICLE; trwupku@163.com; 3; 221-237; 32
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/438445]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Meng, Qingpeng,Zhang, Jing,Feng, Jicheng,et al. Geochemical speciation and risk assessment of metals in the river sediments from Dan River Drainage, China[J]. CHEMISTRY AND ECOLOGY,2016.
APA	Meng, Qingpeng,Zhang, Jing,Feng, Jicheng,Zhang, Zhaoyu,&Wu, Tairan.(2016).Geochemical speciation and risk assessment of metals in the river sediments from Dan River Drainage, China.CHEMISTRY AND ECOLOGY.
MLA	Meng, Qingpeng,et al."Geochemical speciation and risk assessment of metals in the river sediments from Dan River Drainage, China".CHEMISTRY AND ECOLOGY (2016).