| 珠江口表层沉积物有害重金属分布及评价 |
| |
| 引用本文： | 黄向青,梁开,刘雄.珠江口表层沉积物有害重金属分布及评价[J].海洋湖沼通报,2006(3):27-36. |
| |
| 作者姓名： | 黄向青 梁开 刘雄 |
| |
| 作者单位： | 1. 中国地质大学(北京)水资源与环境学院,北京,100083;国土资源部广州海洋地质调查局,广东,广州,510760
2. 国土资源部广州海洋地质调查局,广东,广州,510760 |
| |
| 基金项目： | 中国地质调查局“珠江三角洲近岸海洋地质环境与地质灾害调查(2004年度)”资助 |
| |
| 摘 要： | 应用近期珠江口水域表层沉积物有害重金属测试数据,分析了其分布特征及相互关系,并根据Hakanson潜在生态风险评估方法,计算分析了各单项因子潜在风险指数以及重金属风险指数(单项因子指数累计),结果表明,各因子潜在生态风险程度不一,局部镉、汞的较高,前者达到强,后者达到中等,而砷、铜、铅、铬、锌依次偏低,只达到轻微。从空间分布来看,重金属污染潜在生态风险程度以澳门东南最高,达到强这一等级。
|
| 关 键 词： | 表层沉积物 有害重金属 分布 潜在生态风险 评价 |
| 文章编号： | 1003-6482（2006）03-0027-10 |
| 收稿时间： | 2005-10-10 |
| 修稿时间： | 2005年10月10 |
THE DISTRIBUTION AND ASSESSMENT OF HEAVY METALS IN SURFICIAL SEDIMENTS IN THE PEARL RIVER ESTUARY |
| |
| Huang Xiangqing,Liang Kai,Liu Xiong.THE DISTRIBUTION AND ASSESSMENT OF HEAVY METALS IN SURFICIAL SEDIMENTS IN THE PEARL RIVER ESTUARY[J].Transaction of Oceanology and Limnology,2006(3):27-36. |
| |
| Authors: | Huang Xiangqing Liang Kai Liu Xiong |
| |
| Institution: | 1. The Geoscience University of China (Beijing |
| |
| Abstract: | Based on the recent survey data for the heavy metals in surficial sediments from the Pearl River Estuary,their distribution and correlation characteristics are analyzed.There are positive correlations between the heavy metals and organic matters,Eh and sediment grain,and negative correlations between the heavy metals and seawater salinity.According to Hakanson's method,the index of potential ecological risk for each heavy metal is also assessed.The results show that the risk indices are different from each other.Locally high Cd and Hg concentrates causes middle-strong risk level,but the indices of As,Cu,Cr and Zn are relatively low and the corresponding risk level is light. |
| |
| Keywords: | surficial sediment heavy metal distribution potential ecological risk assessment |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
