EN
The process of ecotoxicant transfer through membrane was studied on the example of the pesticide lontrel (3,6-DCPA**). 3,6-DCPA is able to penetrate through the model liposomal membrane. The mathematical model of mass-transfer process was established. It was found that the transfer rate of 3,6- DCPA through lipid membrane equals (5-8)-10-10 M/s for all 3,6-DCPA concentrations.