What is the process of diffusion in radon transport characterized by?

The process of diffusion in radon transport is characterized by the movement from high to low concentrations. This principle is rooted in the natural tendency of particles to spread out and achieve uniform distribution in a given space. In the context of radon, which is a gas, diffusion occurs as radon atoms move from areas where they are more concentrated (such as the soil or rock from which they emanate) to areas where their concentration is lower (like the air in a building). This movement continues until equilibrium is reached, resulting in a more uniform concentration of radon in the air. Understanding this behavior is crucial for assessing radon levels in indoor environments and evaluating potential health risks associated with radon exposure.