Thiamethoxam Behaviour Modelling in the Clay Soil

Abstract

Because all pesticides are poisons that are intentionally released into the environment, pesticide behaviour is significant. It is necessary to consider the chemical and physical properties of pesticides in order to comprehend the causes of poorly executed pest management. The results showed that the equilibrium constant of Thiamethoxam was achieved between 60 to 180 minutes. The kinetic reaction explained that Thiamethoxam is subjected to the second order with a rate constant of 0.0017 mg mimute-1. Moreover it is more fitting to the Freundlich model compared to the Langmuir model. The bF was recorded 0.02 with the correlation coefficient 0.9999, indicating that Thiamethoxam mobiles on non-ideal surfaces. As long as it was subjected to the second reaction kinetic order, the half-life was 566.4 minutes (0.39 day). In terms of Thiamethoxam distribution in the soil, the distribution coefficient Kd was 0.22 mL g-1, suggesting that Thiamethoxam tends to be less mobile in the soil.