Spatio-temporal distribution and sources of Pb identified by stable isotopic ratios in sediments from the Yangtze River Estuary and adjacent areas

doi:10.1016/j.scitotenv.2016.12.042

	Spatio-temporal distribution and sources of Pb identified by stable isotopic ratios in sediments from the Yangtze River Estuary and adjacent areas
	Chen, Bin 1,2; Liu, Jian 1,2; Hu, Limin 2,3; Liu, Ming 4; Wang, Liang 5; Zhang, Xilin 1,2; Fan, Dejiang 4
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2017-02-15
卷号	580 页码:936-945
关键词	Lead Sources Transport process The Yangtze River basin Sediments Isotopic signatures
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2016.12.042
英文摘要	To understand the spatio-temporal distribution and sources of Pb in the sediments of the Yangtze River Estuary and its adjacent areas, 25 surface sediments and 1 sediment core were collected from the study areas. The concentrations of Al and Pb of these sediments exhibit a decreasing trend from the nearshore towards the offshore, with higher concentrations in the coastal areas of the East China Sea (ECS) and southwest of Jeju Island. According to the stable isotopic ratios of Pb, in combination with the elemental ratios and clay mineral data, it is inferred that sedimentary Pb in the surface sediments of the coastal areas of the ECS may come primarily from the YangtZe River, while the Pb southwest of Jeju Island is probably derived from both the Yangtze and Yellow Rivers. The particulate Pb derived from the Yangtze River was possibly dispersed along two paths: the path southward along the coastline of the ECS and the path eastward associated with the Changjiang Diluted Water (CDW), which crosses the shelf of the ECS towards the area southeast of Jeju Island. Although the Yangtze River Basin witnessed rapid economic development during the period from the late 1970s to the middle 1990s, the influence of human activity on Pb concentration remained weak in the Yangtze River Estuary. Since the early 2000s, however, sedimentary Pb has been significantly increasing in the coastal mud areas of the ECS due to the increasing influence of human activity, such as the increase in atmospheric emission of anthropogenic Pb in China, construction of the Three Gorges Dam (TGD), and the construction of smaller dams in the upper reaches of the Yangtze River. Coal combustion and the smelting of non-ferrous metals are possible anthropogenic sources for the sedimentary Pb in the Yangtze River Estuary. (C) 2016 Published by Elsevier B.V.
资助项目	Taishan Scholars Program of Shandong Province, China[ts201511077]
WOS关键词	EAST CHINA SEA ; HEAVY-METALS ; YELLOW SEA ; SURFACE SEDIMENTS ; SHELF SEDIMENTS ; LEADED GASOLINE ; GRAIN-SIZE ; CONTAMINATION ; ACCUMULATION ; POLLUTION
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000395353600091
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25392]
专题	自然资源部第一海洋研究所
通讯作者	Liu, Jian
作者单位	1.Qingdao Inst Marine Geol, Minist Land & Resources, Key Lab Marine Hydrocarbon Resources & Environm G, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 3.SOA, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China 4.Ocean Univ China, Minist Educ, Key Lab Submarine Geosci & Technol, 238 Songling Rd, Qingdao 266100, Peoples R China 5.SOA, Inst Oceanog 3, Lab Marine & Coastal Geol, 178 Daxue Rd, Xiamen 361005, Peoples R China
推荐引用方式 GB/T 7714	Chen, Bin,Liu, Jian,Hu, Limin,et al. Spatio-temporal distribution and sources of Pb identified by stable isotopic ratios in sediments from the Yangtze River Estuary and adjacent areas[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,580:936-945.
APA	Chen, Bin.,Liu, Jian.,Hu, Limin.,Liu, Ming.,Wang, Liang.,...&Fan, Dejiang.(2017).Spatio-temporal distribution and sources of Pb identified by stable isotopic ratios in sediments from the Yangtze River Estuary and adjacent areas.SCIENCE OF THE TOTAL ENVIRONMENT,580,936-945.
MLA	Chen, Bin,et al."Spatio-temporal distribution and sources of Pb identified by stable isotopic ratios in sediments from the Yangtze River Estuary and adjacent areas".SCIENCE OF THE TOTAL ENVIRONMENT 580(2017):936-945.