Study on Pollution Due to Runoff to Surface Water and Leaching to Groundwater In Lakes |
Nutrientsfrom human activities tend to travel from land to either surface or groundwater. Nitrogen in particular is removed through storm drains, sewage pipes,and other forms of surface runoff. Nutrient losses in runoff and leachate areoften associated with agriculture. Modern agriculture often involves theapplication of nutrients onto fields in order to maximise production. However,farmers frequently apply more nutrients than are taken up by crop or pastures. Regulations aimed at minimisingnutrient exports from agriculture are typically far less stringent than thoseplaced on sewage treatment plants and other point source polluters. It shouldbe also noted that lakes within forested land are also under surface runoffinfluences. Runoff can wash out the mineral nitrogen and phosphorus fromdetritus and in consequence supply the water bodies leading to slow, naturaleutrophication.