What term describes the binding of pesticides to soil particles?

The term that describes the binding of pesticides to soil particles is adsorption. This process occurs when molecules of the pesticide adhere to the surface of soil particles. The strength and extent of adsorption can influence how well a pesticide remains in the soil and affects its movement and bioavailability for target organisms.

When a pesticide is adsorbed, it becomes less likely to leach into groundwater or move to other areas, as it is held in place by the soil. This characteristic is important since it can determine how long the pesticide will remain active in the environment and its potential impact on non-target organisms.

Other terms like leaching, absorption, and retention describe different processes or phenomena. Leaching refers to the movement of dissolved substances through the soil, often leading to contamination of groundwater. Absorption typically describes the uptake of substances by plants or organisms, while retention refers to the ability of soil to hold water or nutrients. Understanding the distinction among these concepts is crucial for effective pest management practices and environmental protection.