Stormwater runoff refers to the excess water that flows over the ground surface during or after rainfall. This runoff can pick up pollutants such as oil, chemicals, and debris as it flows, eventually reaching bodies of water such as rivers, lakes, and oceans. Stormwater runoff is a major source of water pollution and can have negative impacts on aquatic ecosystems and human health. Research in the area of stormwater runoff focuses on understanding the sources and impacts of runoff pollution, developing methods to manage and control runoff, and implementing strategies to mitigate its effects on water quality and the environment. This research often includes studying stormwater management practices such as green infrastructure, rain gardens, and detention basins, as well as monitoring and modeling the movement of runoff and pollutants in urban and rural landscapes. By improving our understanding of stormwater runoff and implementing effective management practices, researchers aim to protect water resources and prevent pollution from entering our waterways.