Mass transport refers to the movement of substances, such as particles or molecules, in large quantities over time and space. This can occur through various mechanisms, including diffusion, advection, convection, and bulk flow. Mass transport plays a crucial role in a wide range of natural and engineered systems, such as in environmental processes, biological systems, chemical reactions, and industrial processes. Understanding and predicting mass transport phenomena is important for optimizing the design and operation of systems, as well as for addressing environmental and health concerns related to the transport of pollutants or contaminants. Researchers in this area may use mathematical modeling, experimental techniques, and computational simulations to study mass transport and develop strategies for controlling or enhancing it in different applications.