| 估算多氯联苯在鱼体中生物富集因子的片段常数法 |
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| 引用本文： | 胡海瑛,陶澍,卢晓霞. 估算多氯联苯在鱼体中生物富集因子的片段常数法[J]. 环境化学, 2000, 19(2): 159-164 |
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| 作者姓名： | 胡海瑛 陶澍 卢晓霞 |
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| 作者单位： | 北京大学城市与环境学系,北京,100871 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，国家重点基础研究发展计划(973计划)，49632060，49525 102，， |
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| 摘 要： | 根据４０种ＰＣＢ的实测数据建立了估算ＰＣＢ在鱼体中生物富集系数的片段常数模型，建模化合物的ｌｇＢＣＦ在２．６５－５．９７之间，ｌｇＫｏｗ则在３．８８－８．１８之间，由于特定氯取代位的影响以及在此Ｋｏｗ范围内ＢＣＦ与化合物憎水性之间的非线性关系，简单的片段常数模型不能有效估算ＢＣＦ。
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| 关 键 词： | 片段常数 多氯联苯 生物富集因子 鱼体 生物监测 |
A FRAGMENT CONSTANT METHOD FOR PREDICTION OF BCF OF PCB IN FISH |
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| Hu Haiying,Tao Shu,Lu Xiaoxia. A FRAGMENT CONSTANT METHOD FOR PREDICTION OF BCF OF PCB IN FISH[J]. Environmental Chemistry, 2000, 19(2): 159-164 |
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| Authors: | Hu Haiying Tao Shu Lu Xiaoxia |
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| Abstract: | A fragment constant model was developed for predicting PCB' s BCF in fish based on measured BCFs of 40 congeners covering a wide range of physiochemical properties. Their log transformed 1-octoalcohol/water partition coefficients (Kow) vary from 3.88 to 8.18. The steric effect of molecular size, which usually causes a nonlinear relationship between IgBCF and lgKow, was adjusted by introducing two stuctural factors. A modified jackknife test was performed to validate model robustness. |
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| Keywords: | fragment constant BCF PCBs jackknife test. |
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