| Geochemical source, deposition, and environmental risk assessment of cadmium in surface and core sediments from the Bohai Sea, China | |
| Hu Ningjing1; Huang Peng2; Zhang Hui1; Wang Xiaojing1; Zhu Aimei1; Liu Jihua1; Shi Xuefa1 | |
| 2017 | |
| 发表期刊 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 卷号 | 24期号:1页码:827-843 |
| 文章类型 | Article |
| 摘要 | Geochemical sources, spatio-temporal distribution, and associated environmental risk of Cd in the Bohai Sea were investigated using data from 405 surface sediment samples and two sediment cores. Local point Cd sources, TOC content, and currents are the main controlling factors of Cd distribution. The contribution of Cd from river discharge surpasses that from atmospheric deposition. Sediment-quality guidelines, enrichment factors, and chemical fraction analysis were used to assess metal toxicity in the collected sediments. Results show that Bohai Sea sediments have a moderate Cd enrichment level. This enrichment poses a high risk due to the relatively high mobility and bioavailability of Cd despite measured levels below sediment-quality guidelines at most stations. Vertical profiles of Cd concentrations, Al-normalized enrichment factors, and excess burial fluxes combined with Pb-210 dating reveal the history of Cd pollution in the Bohai Sea over the last century. Data show Cd unvaried before the 1800s, a slight increase from the 1800s to the late 1950s, a decrease from the late 1960s to the 1970s, and an increase from the 1980s to 2001, including a relatively high value in 1998. Historic variation in Cd is closely associated with both natural and anthropogenic activities. |
| 关键词 | Cadmium Risk Assessment Source Sedimentary Flux Sediment Bohai Sea |
| DOI | 10.1007/s11356-016-7800-0 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000392105700077 |
| 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/337002/136290 |
| 专题 | 海洋地质与环境重点实验室 |
| 作者单位 | 1.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu Ningjing,Huang Peng,Zhang Hui,et al. Geochemical source, deposition, and environmental risk assessment of cadmium in surface and core sediments from the Bohai Sea, China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2017,24(1):827-843. |
| APA | Hu Ningjing.,Huang Peng.,Zhang Hui.,Wang Xiaojing.,Zhu Aimei.,...&Shi Xuefa.(2017).Geochemical source, deposition, and environmental risk assessment of cadmium in surface and core sediments from the Bohai Sea, China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,24(1),827-843. |
| MLA | Hu Ningjing,et al."Geochemical source, deposition, and environmental risk assessment of cadmium in surface and core sediments from the Bohai Sea, China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 24.1(2017):827-843. |
| 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 | ||
| Geochemical source, （5252KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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