The spatial-temporal evolution of heavy metal accumulation in the offshore sediments along the Shandong Peninsula over the last 100 years: Anthropogenic and natural impacts

doi:10.1016/j.envpol.2021.117894

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	The spatial-temporal evolution of heavy metal accumulation in the offshore sediments along the Shandong Peninsula over the last 100 years: Anthropogenic and natural impacts
	Yang, Lijian 1,3; Ma, Xiaochuan 1,2,3,4; Luan, Zhendong 1,2,3,4; Yan, Jun 1,2,3,4
刊名	ENVIRONMENTAL POLLUTION
	2021-11-15
卷号	289 页码:10
关键词	Heavy metals Contamination Anthropogenic activities Shandong Peninsula coastal current Yellow River
ISSN号	0269-7491
DOI	10.1016/j.envpol.2021.117894
通讯作者	Ma, Xiaochuan(mxch@qdio.ac.cn)
英文摘要	The anthropogenic and natural impacts on the temporal and spatial variations of heavy metals in sediments under the Shandong Peninsula coastal current are still unclear. Here, the concentrations\burial fluxes of Cr, Cu, Zn, As, and Pb in three sediment cores retrieved from the Bohai Sea and the Yellow Sea along the Shandong Peninsula were analyzed to study the spatial-temporal variability of heavy metal accumulation over the last century. The results showed that the buried heavy metal fluxes were relatively low at the end of the Shandong Peninsula coastal current. The enrichment factor (EF) and geoaccumulation index (I-geo) indicated that those metals did not severely pollute the sediments except As that reached a moderate enrichment. Principal component analysis (PCA) revealed that Cr, Cu, Zn, and Pb were mainly derived from natural weathering and As was determined by anthropogenic contamination. The strength of the Shandong Peninsula coastal current, the Yellow River estuary location, and sediment discharge load significantly influenced the concentrations of natural-origin heavy metals by affecting sediment grain size and the source-sink process. The emission of pollutants from agricultural and industrial activities in the Shandong Peninsula region resulted in As enrichment since the 1950s. Moreover, the EF values of heavy metals in sediment cores from China's coastal seas showed apparent spatial variations of heavy metal pollution but had coherent temporal variability with China's economic development process. Heavy metals pollution has weakened in most coastal seas since the 2000s, likely due to the extensive industrial upgrading and the implementation of pollution control. These results have a reference significance for studying the evolution and source-sink process of the heavy metals in offshore sediments and tracing anthropogenic impacts in different periods.
资助项目	Open Research Fund of State Key Laboratory of Estuarine and Coastal Research[SKLEC-KF201804] ; National Natural Science Foundation of China[41876035]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000697049600002
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/176448]
专题	海洋研究所_海洋地质与环境重点实验室
通讯作者	Ma, Xiaochuan
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Geol, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Yang, Lijian,Ma, Xiaochuan,Luan, Zhendong,et al. The spatial-temporal evolution of heavy metal accumulation in the offshore sediments along the Shandong Peninsula over the last 100 years: Anthropogenic and natural impacts[J]. ENVIRONMENTAL POLLUTION,2021,289:10.
APA	Yang, Lijian,Ma, Xiaochuan,Luan, Zhendong,&Yan, Jun.(2021).The spatial-temporal evolution of heavy metal accumulation in the offshore sediments along the Shandong Peninsula over the last 100 years: Anthropogenic and natural impacts.ENVIRONMENTAL POLLUTION,289,10.
MLA	Yang, Lijian,et al."The spatial-temporal evolution of heavy metal accumulation in the offshore sediments along the Shandong Peninsula over the last 100 years: Anthropogenic and natural impacts".ENVIRONMENTAL POLLUTION 289(2021):10.