Long-range transport refers to the movement of pollutants, contaminants, or substances over large distances through various environmental pathways such as the atmosphere, oceans, or rivers. This can have significant impacts on ecosystems and human health, as pollutants can disperse over vast areas and accumulate in remote regions far from their original source. Research in this area focuses on understanding the mechanisms of long-range transport, modeling pollutant dispersion, assessing the effects on ecosystems and human populations, and developing strategies to mitigate and manage the transport of contaminants. Some common pollutants that are studied in the context of long-range transport include persistent organic pollutants, heavy metals, and airborne particulate matter.