Institutional Repository of Key Laboratory of Marine Ecology & Environmental Sciences, CAS
| 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 |
| DOI | 10.1016/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 |
| 第一作者单位 | 海洋生态与环境科学重点实验室 |
| 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. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Speciation of heavy （617KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论