| 厦门湾颗粒活性污染物归宿的研究 |
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| 引用本文： | 陈敏,黄奕普.厦门湾颗粒活性污染物归宿的研究[J].海洋学报,1998,20(5):70-74. |
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| 作者姓名： | 陈敏 黄奕普 |
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| 作者单位： | 厦门大学海洋系, 厦门361005 |
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| 摘 要： | 采用条件分配系数Kd作为量度污染物颗粒活性强弱的基准,结合234Th-238U不平衡确定的颗粒物停留时间以及水体的停留时间,建立了一个简单的模型用于预测具有不同Kd值的污染物在厦门湾的归宿,该模型最终确定了某一污染物进入该海域后迁出至沉积物与离开该海域进入外海水之相对份额大小。污染物质的最终归宿通常依赖于其本身的化学性质、环境中的颗粒动力学性质及水动力作用,忽略其中任何一个因素都是不合适的。
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| 关 键 词： | 污染物 234Th/238U不平衡 模型预测 |
| 收稿时间： | 1997/4/10 0:00:00 |
| 修稿时间： | 1997/7/21 0:00:00 |
Fate of particle-reactive pollutants in the Xiamen Bay |
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| Chen Min and Huang Yipu.Fate of particle-reactive pollutants in the Xiamen Bay[J].Acta Oceanologica Sinica (in Chinese),1998,20(5):70-74. |
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| Authors: | Chen Min and Huang Yipu |
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| Institution: | Department of Oceanography, Xiamen University, Xiamen 361005 |
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| Abstract: | A simple model is established to describe the fate of particle-reactive pollutants in the Xiamen Bay. Based on the conditional distribution coefficients (Kd ) of chemicals and residence times of particle and waters, the model can be used to predict the fractions of pollutants which would be scavenged to sediments and would be escaped from the system. The model is calibrated using scavenging data derived from 234Th-238U disequilibria. The fate of a potential pollutant which will be scavenged is a function of the properties of the chemical, of the particle dynamics, and of the waters dynamics in the environment. It is inappropriate to over- look any factor. |
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| Keywords: | Pollutant 234Th/238U disequilibria model prediction |
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