Speciation of heavy metals in different grain sizes of Jiaozhou Bay sediments: Bioavailability, ecological risk assessment and source analysis on a centennial timescale

doi:10.1016/j.ecoenv.2017.05.036

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	Speciation of heavy metals in different grain sizes of Jiaozhou Bay sediments: Bioavailability, ecological risk assessment and source analysis on a centennial timescale
	Kang, Xuming 1,2; Song, Jinming1,2 ; Yuan, Huamao 1,2; Duan, Liqin 1,2; Li, Xuegang 1,2; Li, Ning 1,2; Liang, Xianmeng1,3 ; Qu, Baoxiao1,2
刊名	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
	2017-09-01
卷号	143 页码:296-306
关键词	Heavy Metals Chemical Fractionation Grain Size Contamination Sediment Jiaozhou Bay
DOI	10.1016/j.ecoenv.2017.05.036
文献子类	Article
英文摘要	Heavy metal contamination is an essential indicator of environmental health. In this work, one sediment core was used for the analysis of the speciation of heavy metals (Cr, Mn, Ni, Cu, Zn, As, Cd, and Pb) in Jiaozhou Bay sediments with different grain sizes. The bioavailability, sources and ecological risk of heavy metals were also assessed on a centennial timescale. Heavy metals were enriched in grain sizes of < 63 mu m and were predominantly present in residual phases. Moreover, the mobility sequence based on the sum of the first three phases (for grain sizes of < 63 pm) was Mn > Pb > Cd > Zn > Cu > Ni > Cr > As. Enrichment factors (EF) indicated that heavy metals in Jiaozhou Bay presented from no enrichment to minor enrichment. The potential ecological risk index (RI) indicated that Jiaozhou Bay had been suffering from a low ecological risk and presented an increasing trend since 1940s owing to the increase of anthropogenic activities. The source analysis indicated that natural sources were primary sources of heavy metals in Jiaozhou Bay and anthropogenic sources of heavy metals presented an increasing trend since 1940s. The principal component analysis (PCA) indicated that Cr, Mn, Ni, Cu and Pb were primarily derived from natural sources and that Zn and Cd were influenced by shipbuilding industry. Mn, Cu, Zn and Pb may originate from both natural and anthropogenic sources. As may be influenced by agricultural activities. Moreover, heavy metals in sediments of Jiaozhou Bay were clearly influenced by atmospheric deposition and river input.
语种	英语
WOS记录号	WOS:000404095100038
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/137124]
专题	海洋研究所_海洋生态与环境科学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Kang, Xuming,Song, Jinming,Yuan, Huamao,et al. Speciation of heavy metals in different grain sizes of Jiaozhou Bay sediments: Bioavailability, ecological risk assessment and source analysis on a centennial timescale[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2017,143:296-306.
APA	Kang, Xuming.,Song, Jinming.,Yuan, Huamao.,Duan, Liqin.,Li, Xuegang.,...&Qu, Baoxiao.(2017).Speciation of heavy metals in different grain sizes of Jiaozhou Bay sediments: Bioavailability, ecological risk assessment and source analysis on a centennial timescale.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,143,296-306.
MLA	Kang, Xuming,et al."Speciation of heavy metals in different grain sizes of Jiaozhou Bay sediments: Bioavailability, ecological risk assessment and source analysis on a centennial timescale".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 143(2017):296-306.