his paper has established a transport model of BaP and analysed quantitatively the movement of the components in soil-rice system. Transported rate and distribution coeffi-cients of  ̄(14)C-BaP between the systematic constituents are obtained empirically. Transportpaths and velocity of BaP to rice have been revealed. The BaP absorbing of rice from water is4 times higher than that from soil. Deposited velocity of BaP to soil in the water is 7 timesgreater than that the rice absorbing rate from water. A g...