| 厦门湾海域沉积物中酸可挥发性硫化物与重金属生态风险评价 |
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| 引用本文： | 李庆召,颜昌宙,李国新,张娴,王灶生.厦门湾海域沉积物中酸可挥发性硫化物与重金属生态风险评价[J].海洋环境科学,2009,28(3). |
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| 作者姓名： | 李庆召 颜昌宙 李国新 张娴 王灶生 |
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| 作者单位： | 1. 中国科学院城市环境研究所,福建,厦门,361003;中国科学院研究生院,北京,100049
2. 中国科学院城市环境研究所,福建,厦门,361003 |
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| 基金项目： | 中国科院知识创新工程重要项目 |
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| 摘 要： | 本研究测定了厦门湾海域沉积物中的AVS (acid volatile sulphide)、TOC(total organic carbon)和重金属SEM (simultaneously extracted metals),并利用Spearman秩相关系数分析了SEM和TOC、AVS的关系,结果表明TOC不是该区沉积物中AVS含量的主要控制因素,该区域∑SEM的分布模式主要由SEMZn、SEMCu的分布模式决定.利用AVS归一化的方法评价沉积物中有毒金属化学活性,结果表明大多数站点∑SEM/AVS＞1,沉积物∑SEM-AVS的差值均0＜(∑SEM-AVS)＜5,说明该区存在潜在的重金属生态风险.
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| 关 键 词： | 重金属生态风险 |
Assessment of ecological risk of acid-volatile sulfide (AVS) and trace metals in marine sediment of Xiamen Bay |
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| LI Qing-zhao,YAN Chang-zhou,LI Guo-xin,ZHANG Xian,WANG Zao-sheng.Assessment of ecological risk of acid-volatile sulfide (AVS) and trace metals in marine sediment of Xiamen Bay[J].Marine Environmental Science,2009,28(3). |
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| Authors: | LI Qing-zhao YAN Chang-zhou LI Guo-xin ZHANG Xian WANG Zao-sheng |
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| Institution: | 1.Institute of urban Environment;Chinese academy of science;Xianmen 361003;China;2.Graduate School;Chinese Academy of Sciences;Beijing 100049;China |
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| Abstract: | The acid volatile sulphide(AVS) shows the significance in controlling heavy metals partition between sediment and pore water.More and more studies were applied the ratio between AVS and simultaneously extracted metals(SEM) to assess risk of toxic metals in sediment except for Xiamen Bay.The Spearman's rank correlation analysis was applied to predict the sediment toxicity in Xiamen Bay in this study.The results show that SEM depends to a high degree on the mode of distribution Cu and Zn.There is a distant co... |
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| Keywords: | SEM AVS TOC |
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