Spatial Distribution and Contamination Assessment of Heavy Metals in Surface Sediments of the Caofeidian Adjacent Sea after the Land Reclamation, Bohai Bay

doi:10.1155/2018/2049353

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Spatial Distribution and Contamination Assessment of Heavy Metals in Surface Sediments of the Caofeidian Adjacent Sea after the Land Reclamation, Bohai Bay
	Zhu, He1,2,3 ; Bing, Haijian1 ; Yi, Huapeng 2; Wu, Yanhong1 ; Sun, Zhigao 4
刊名	JOURNAL OF CHEMISTRY
	2018
页码	13
ISSN号	2090-9063
DOI	10.1155/2018/2049353
英文摘要	Land reclamation can significantly influence spatial distribution of heavy metals in inshore sediments. In this study, the distribution and contamination of heavy metals (Cd, Cr, Cu, Ni, Pb, and Zn) in inshore sediments of Bohai Bay were investigated after the land reclamation of Caofeidian. The results showed that the concentrations of Cd, Cr, Cu, Ni, Pb, and Zn in the sediments were 0.20-0.65, 27.16-115.70, 11.14-39.00, 17.37-65.90, 15.08-24.06, and 41.64-139.56 mg/kg, respectively. These metal concentrations were generally higher in the area of Caofeidian than in other Chinese bays and estuaries. Spatially, the concentrations of Cd, Cr, Cu, Ni, and Zn were markedly lower in the sediments close to Caofeidian compared with other regions, whereas the concentrations of Pb showed an opposite case. Hydrodynamic conditions after the land reclamation were the major factor influencing the distribution of heavy metals in the sediments. Grain sizes dominated the distribution of Cu and Zn, and organic matters and Fe/Mn oxides/hydroxides also determined the distribution of the heavy metals. Multiple contamination indices showed that the inshore sediments were moderately to highly contaminated by Cd and slightly contaminated by other heavy metals. Similarly, Cd showed a high potential ecorisk in the sediments, and other metals were in the low level. Chromium contributed to higher exposure toxicity than other metals by the toxicity unit and toxic risk index. The results of this study indicate that after the land reclamation of Caofeidian the contamination and ecorisk of heavy metals in the sediments markedly decreased in the stronger hydrodynamic areas.
语种	英语
出版者	HINDAWI LTD
WOS记录号	WOS:000431565200001
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/21494]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者	Wu, Yanhong; Sun, Zhigao
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Sichuan, Peoples R China 2.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Fujian Normal Univ, Key Lab Humid Subtrop Ecogeog Proc, Minist Educ, Fuzhou 350007, Fujian, Peoples R China
推荐引用方式 GB/T 7714	Zhu, He,Bing, Haijian,Yi, Huapeng,et al. Spatial Distribution and Contamination Assessment of Heavy Metals in Surface Sediments of the Caofeidian Adjacent Sea after the Land Reclamation, Bohai Bay[J]. JOURNAL OF CHEMISTRY,2018:13.
APA	Zhu, He,Bing, Haijian,Yi, Huapeng,Wu, Yanhong,&Sun, Zhigao.(2018).Spatial Distribution and Contamination Assessment of Heavy Metals in Surface Sediments of the Caofeidian Adjacent Sea after the Land Reclamation, Bohai Bay.JOURNAL OF CHEMISTRY,13.
MLA	Zhu, He,et al."Spatial Distribution and Contamination Assessment of Heavy Metals in Surface Sediments of the Caofeidian Adjacent Sea after the Land Reclamation, Bohai Bay".JOURNAL OF CHEMISTRY (2018):13.