Contaminant transport refers to the movement of harmful substances through air, water, or soil. This process can occur through various mechanisms, including advection, diffusion, and dispersion. Understanding how contaminants travel is crucial for assessing environmental risks and developing effective cleanup strategies. Factors influencing contaminant transport include temperature, pressure, and the properties of the medium, such as porosity and permeability. These factors determine how quickly and far contaminants can spread, impacting ecosystems and human health. Monitoring and modeling these processes help in managing pollution and protecting natural resources.