Trace metals in the suspended particulate matter of the Yellow River (Huanghe) Estuary: Concentrations, potential mobility, contamination assessment and the fluxes into the Bohai Sea

doi:10.1016/j.csr.2015.05.005

	Trace metals in the suspended particulate matter of the Yellow River (Huanghe) Estuary: Concentrations, potential mobility, contamination assessment and the fluxes into the Bohai Sea
	Gao, XL; Zhou, FX; Chen, CTA; Xing, QG; Gao, XL (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China. [email protected]
发表期刊	CONTINENTAL SHELF RESEARCH
ISSN	0278-4343
	2015-08-01
卷号	104 页码:25-36
关键词	Trace Metals Suspended Particulate Matter Chemical Fractionation Environmental Assessment Estuarine Environment Fluxes
DOI	10.1016/j.csr.2015.05.005
产权排序	[Gao, Xuelu; Zhou, Fengxia; Xing, Qianguo] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China; [Gao, Xuelu; Chen, Chen-Tung Arthur] Natl Sun Yat Sen Univ, Dept Oceanog, Kaohsiung 80424, Taiwan; [Zhou, Fengxia] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
作者部门	中科院海岸带环境过程与生态修复重点实验室
英文摘要	Excessive input of trace metals contributes much to the degradation of many coastal ecosystems. As one of the most turbid large rivers in the world, the Yellow River, also called Huanghe, transports huge amounts of freshwater and suspended particulate matter (SPM) each year from its catchment as far as thousands of kilometers inland into the Bohai Sea, and has the most profound influence on the ecosystem of the Bohai Sea compared with other rivers that empty into it. In this research, the SPM were collected from the Yellow River Estuary twice in April and August, 2013. Six environmental quality assessment-related trace metals, namely Cd, Cr, Cu, Ni, Pb and Zn, were measured for their total concentrations and fractionations to understand their spatial and seasonal variations, potential mobility, pollution status and fluxes. The total concentrations of Cd, Cu and Pb in the wet season were very similar to their corresponding values in the dry season, while the total concentrations of Cr, Ni and Zn in the wet season were slightly higher than those in the dry season. The distributions of the studied metals in the geochemical fractions showed no notable spatial and seasonal variations. Except for Cd and Ni, the metals in the most labile fraction having the highest potential risk to biota on average accounted for <2% of their respective total concentrations; the percentages of Cd and Ni in this fraction were 54.5% and 10.1%, respectively. Anthropogenic influence on the spatial and seasonal variations of particulate Cr, Cu, Ni and Zn in total concentrations seemed weak and they were dominantly of natural sources. Results indicated that the Yellow River emptied about 0.0081 x 10(3), 2.11 x 10(3), 0.98 x 10(3), 1.10 x 10(3), 1.01 x 10(3) and 2.64 x 10(3) t a(-1) of particulate Cd, Cr, Cu, Ni, Pb and Zn into the Sea, 86% of which happened in the wet season starting from June through October. These numbers were only 2.5-5.3% of the annual trace metals fluxes in the 1980s. One of the reasons for this was the reduction of SPM load; the fact that previous chemical fluxes data were measured at sites inland far from the mouth of the Yellow River was also responsible for this because a major proportion of SPM recorded at that site were deposited into the river bed during the transport between that site and the mouth of the Yellow River. Such a deposit actually did not reach the Bohai Sea, and probably had no direct influence on the environment and ecosystem of the Bohai Sea beyond the mouth of the Yellow River. (C) 2015 Elsevier Ltd. All rights reserved.
文章类型	Article
收录类别	SCI
语种	英语
关键词[WOS]	EAST CHINA SEA ; SEDIMENT QUALITY GUIDELINES ; HEAVY-METALS ; SURFACE SEDIMENTS ; CONTINENTAL SHELVES ; MARINE-SEDIMENTS ; POLLUTION STATUS ; TRANSPORT ; FRACTIONATION ; BAY
研究领域[WOS]	Oceanography
WOS记录号	WOS:000358097600003
引用统计	被引频次：61[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/9275
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_污染过程与控制实验室
通讯作者	Gao, XL (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China. [email protected]
推荐引用方式 GB/T 7714	Gao, XL,Zhou, FX,Chen, CTA,et al. Trace metals in the suspended particulate matter of the Yellow River (Huanghe) Estuary: Concentrations, potential mobility, contamination assessment and the fluxes into the Bohai Sea[J]. CONTINENTAL SHELF RESEARCH,2015,104:25-36.
APA	Gao, XL,Zhou, FX,Chen, CTA,Xing, QG,&Gao, XL .(2015).Trace metals in the suspended particulate matter of the Yellow River (Huanghe) Estuary: Concentrations, potential mobility, contamination assessment and the fluxes into the Bohai Sea.CONTINENTAL SHELF RESEARCH,104,25-36.
MLA	Gao, XL,et al."Trace metals in the suspended particulate matter of the Yellow River (Huanghe) Estuary: Concentrations, potential mobility, contamination assessment and the fluxes into the Bohai Sea".CONTINENTAL SHELF RESEARCH 104(2015):25-36.