Non-point source pollution

Non-point source pollution refers to pollutants that originate from multiple, diffuse sources rather than a single, identifiable location. It typically results from rain or snowmelt running over land, carrying away pollutants like fertilizers, pesticides, oils, and sediments into rivers, lakes, and groundwater. This type of pollution is harder to control because it isn't linked to one specific site, unlike factory discharges or sewage pipes. It often occurs due to land use practices such as agriculture, construction, and urban development, making it a widespread challenge for water quality management.