| 辽东湾北部浅海区底泥砷元素形态特征 |
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| 引用本文： | 刘明华.辽东湾北部浅海区底泥砷元素形态特征[J].地质与资源,2010,19(1):32-35,41. |
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| 作者姓名： | 刘明华 |
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| 作者单位： | 辽宁省地质矿产调查院, 辽宁 沈阳 110032 |
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| 摘 要： | 依据2006年辽东湾浅海评价资料,分析了辽东湾北部浅海底泥的砷元素全量和各形态的含量,对砷元素全量和存在形态的分布特征及相关性进行了系统研究,并探讨了其环境生态效应.结果表明:底泥中的砷含量为较高水平,存在形态主要为残渣态、腐植酸结合态和铁锰氧化态,而水溶态、碳酸盐结合态、离子交换态和强有机结合态含量较少.除砷的强有机结合态以外,全量和其他6种形态有很好的相关性,分布特征一致,高值区都分布在锦州湾及附近.并且生态效应明显,底泥中砷的腐殖酸结合态、铁锰氧化态、离子交换态与脉红螺中砷有显著相关性,碳酸盐结合态与锯缘青蟹和口虾蛄中砷有一定的相关性.
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| 关 键 词： | 辽东湾北部 砷元素 形态特征 残渣态 腐植酸结合态 铁锰氧化态 |
| 收稿时间： | 2009-09-07 |
STATES OF ELEMENT ARSENIC IN BOTTOM MUD OF SHALLOW SEA OF NORTHERN LIAODONG BAY |
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| LIU Ming-hua.STATES OF ELEMENT ARSENIC IN BOTTOM MUD OF SHALLOW SEA OF NORTHERN LIAODONG BAY[J].Geology and Resources,2010,19(1):32-35,41. |
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| Authors: | LIU Ming-hua |
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| Institution: | Liaoning Institute of Geology and Mineral Resources Survey, Shenyang 110032, Chin |
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| Abstract: | Based on the data of the shallow sea of Northern Liaodong Bay in 2006, the contents of element As both total and in each states in the bottom mud of shallow sea are analyzed. The distribution and correlation of total As and its different existing states are studied. Its environmental ecologic effect is also discussed. The result indicates that the arsenic content in bottom mud is quite high, existing mainly in residual state, humic acid binding state and ferrimanganic oxidized state, with rare water-soluble state, carbonate binding state, ion-exchange state and organic binding state. The distribution of total As content is well correlated to the six states except organic binding state. The high contents are distributed in Jinzhou Bay and surroundings, with obvious ecologic effect. The arsenic contents of humic acid binding state, ferrimanganic oxidized state and ion-exchange state are notably correlated to those in the Papana venosa. There is certain correlation between the arsenic in carbonate binding state and that in mangrove crab and edible mantis shrimp. |
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| Keywords: | Northern Liaodong Bay arsenic state characteristics residual state humic acid binding state ferrimanganic oxidative form |
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