【摘要】 为探究多环芳烃（PAHs）在海洋生物体内富集过程,选择皱纹盘鲍（Haliotis discus hannai）作为受试生物,应用半静态双箱动力学模型,分别考察了3-甲基菲和9,10-甲基蒽2种多环芳烃在皱纹盘鲍体内的富集动力学过程,通过非线性拟合获得鲍鱼对2种多环芳烃的吸收速率常数（K₁）、释放速率常数（K₂）、生物富集因子（BCF）,以及平衡状态下鲍鱼体内2种多环芳烃的含量（Cmax）、生物学半衰期(t_1/2)等动力学参数。结果表明,鲍鱼对9,10-甲基蒽富集动力学参数K₁、K₂、BCF、Cmax、t_1/2的平均值分别为4.9437、0.406、13.59、790.03μg·L^-1、3.78 d。鲍鱼对3-甲基菲富集动力学参数K₁、K₂、BCF、Cmax、t_1/2的平均值分别为2.3023、0.367、5.97、354.37μg·L^-1、3.13 d。鲍鱼在不同浓度下对3-甲基菲和9,10-甲基蒽的生物富集过程均符合双箱动力学模型。更多还原

【Abstract】 In order to explore the enrichment of polycyclic aromatic hydrocarbons（PAHs） in abalone（Haliotis discus hannai）, the semi-static two-compartment kinetic model was used to investigate the bioaccumulation kinetics of3-methylphenanthrene and 9,10-dimethylanthracene. The enrichment kinetics parameters of two kinds of PAHs in abalone, including the absorption rate constant（K₁）, release rate constant（K₂）, bioconcentration factor（BCF）, content（Cmax） and biological half-life(t_1/2), were obtained by nonlinear fitting. The results showed that the average values of kinetic parameters K₁, K₂, BCF, Cmaxand t_1/2 of abalone for 9,10-dimethylanthracene were 4.9437, 0.406,13.59, 790.03 μg·L^-1 and 3.78 d, respectively. The average values of kinetic parameters K₁, K₂, BCF, Cmaxand t_1/2 of abalone for 3-methylphenanthrene were 2.3023, 0.367, 5.97, 354.37 μg·L^-1 and 3.13 d, respectively. The bioaccumulation process of 3-methylphenanthrene and 9,10-dimethylanthracene in different concentrations of abalone conform to the two-compartment kinetic model.更多还原