Pt and Pd in sediments from the Pearl River Estuary, South China: background levels, distribution, and source
文献类型：期刊论文
| 作者 | Zhong, LF ; Yan, W ; Li, J ; Tu, XL ; Liu, BM ; Xia, Z |
| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 出版日期 | 2012 |
| 卷号 | 19期号:4页码:1305-1314 |
| 关键词 | Platinum Palladium Background Distribution Vehicle exhaust catalyst Sediment Pearl River Estuary |
| ISSN号 | 0944-1344 |
| 通讯作者 | wyan@scsio.ac.cn |
| 中文摘要 | This study assessed the concentrations of platinum (Pt) and palladium (Pd) in surface sediments and sedimentary cores collected from the Pearl River Estuary with a view of evaluating the distribution, background levels, possible sources, and contamination level of anthropogenic Pt and Pd. Thirty-six samples of surface sediments and 12 samples from sedimentary cores were collected. Al2O3 was analyzed on fused glass disks by X-ray fluorescence spectrometer. Heavy metal elements were measured by inductively coupled plasma-mass spectrometry. Pt and Pd were separated from the sample matrix by anion exchange chromatography and subsequent solvent extraction after samples had been digested in Carius tubes using aqua regia. The analysis of Pt and Pd was performed by isotopic dilution-inductively coupled plasma-mass spectrometry. Pt and Pd concentrations in surface sediments were 0.28-2.11 and 0.39-38.30 ng/g, respectively, and Pt and Pd concentrations in sedimentary cores were 0.19-1.18 and 0.15-1.76 ng/g, respectively. Background values of Pt and Pd were 0.20-1.17 and 0.10-1.34 ng/g, respectively. The spatial distribution of the enrichment factor differed between Pt and Pd in surface sediments. Down-core variations in Pt, Pd, and other heavy metal elements were similar in all cases and were related to sediment type. Some of the Pt and Pt in surface samples were derived from anthropogenic emissions. Pt and Pd were delivered to the sediment by fluvial input. In addition to vehicle exhaust catalysts, Pt and Pd were derived from other sources (e.g., industrial process). An important post-burial remobilization process of Pt and Pd is likely to be particle mixing by billows caused by typhoon. |
| 学科主题 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000303547200034 |
| 公开日期 | 2013-08-28 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/10341]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhong, LF,Yan, W,Li, J,et al. Pt and Pd in sediments from the Pearl River Estuary, South China: background levels, distribution, and source[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2012,19(4):1305-1314. |
| APA | Zhong, LF,Yan, W,Li, J,Tu, XL,Liu, BM,&Xia, Z.(2012).Pt and Pd in sediments from the Pearl River Estuary, South China: background levels, distribution, and source.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,19(4),1305-1314. |
| MLA | Zhong, LF,et al."Pt and Pd in sediments from the Pearl River Estuary, South China: background levels, distribution, and source".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 19.4(2012):1305-1314. |
入库方式： OAI收割
来源：南海海洋研究所
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