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Speciation of heavy metals in different grain sizes of Jiaozhou Bay sediments: Bioavailability, ecological risk assessment and source analysis on a centennial timescale
Kang, Xuming1,2; Song, Jinming1,2; Yuan, Huamao1,2; Duan, Liqin1,2; Li, Xuegang1,2; Li, Ning1,2; Liang, Xianmeng1,3; Qu, Baoxiao1,2
2017-09-01
发表期刊ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
卷号143页码:296-306
文章类型Article
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.
关键词Heavy Metals Chemical Fractionation Grain Size Contamination Sediment Jiaozhou Bay
DOI10.1016/j.ecoenv.2017.05.036
收录类别SCI
语种英语
WOS记录号WOS:000404095100038
引用统计
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/137124
专题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
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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.
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