| 九龙江口表层沉积物重金属分布及潜在生态风险评价 |
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| 引用本文： | 王伟力,耿安朝,刘花台,高爱国.九龙江口表层沉积物重金属分布及潜在生态风险评价[J].海洋科学进展,2009,27(4). |
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| 作者姓名： | 王伟力 耿安朝 刘花台 高爱国 |
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| 作者单位： | 厦门大学,海洋与环境学院,福建,厦门,361005 |
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| 基金项目： | 国家自然科学基金--区域循环经济体系及其产业结构的生态重组研究 |
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| 摘 要： | 对九龙江口表层沉积物中的TOC,Cu,Pb,Cd,Cr,Hg,As的含量进行了分析,TOC,Cu,Cd,Hg和As的质量分数均符合一类海洋沉积物质量标准;Pb和Cd在个别站位超标.相关性分析表明,九龙江口表层沉积物中大多数重金属呈现相近的来源特征,有机质是影响沉积物中重金属分布的重要因素.采用潜在生态风险指数法对九龙江口表层沉积物重金属污染的潜在生态风险进行了评价,结果表明,九龙江口存在一定程度的生态风险,重金属的生态风险依次为Cd>Hg>As>Pb>Cu>Cr,除Cd达到重的生态风险外,其余元素均为低生态风险.
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| 关 键 词： | 九龙江口 表层沉积物 重金属 生态风险评价 |
Distribution and Potential Ecological Risk Evaluation of Heavy Metals in the Surface Sediments From the Jiulongjiang River Estuary |
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| WANG Wei-li,GENG An-chao,LIU Hua-tai,GAO Ai-guo.Distribution and Potential Ecological Risk Evaluation of Heavy Metals in the Surface Sediments From the Jiulongjiang River Estuary[J].Advances in Marine Science,2009,27(4). |
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| Authors: | WANG Wei-li GENG An-chao LIU Hua-tai GAO Ai-guo |
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| Institution: | WANG Wei-li,GENG An-chao,LIU Hua-tai,GAO Ai-guo(College of Oceanography and Environment Science of Xiamen University,Xiamen 361005,China) |
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| Abstract: | Analyses were made of the contents of TOC, Cu, Pb, Cd, Cr, Hg and As in the surface sediments from the Jiulongjiang River Estuary. The contents of TOC, Cu, Cr, Hg and As are in accordance with the marine sediment quality standard I and those of Pb and Cd are beyond of the standard at some stations. The correlation analysis indicates that most of the heavy metals in the surface sediments of the Jiulongjiang River Estuary are similar in sources and organic metter is an important factor that influences the distributions of heavy metals in the surface sediments. The potential ecological risk caused by the pollution of heavy metals in the surface sediments is evaluated by means of serious ecological risk index. The results indicate that the potential ecological risk of the heavy metals in the surface sediments of the Jiulongjiang River Estuary is in the order of Cd>Hg>As>Pb>Cu>Cr. Of them, Cd is the most hazardous element and others belong to low ecological risk elements. |
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| Keywords: | Jiulongjiang River Estuary surface sediment heavy metals potential ecological evaluation |
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