Agricultural chemical contamination of surface and groundwater is a special concern in the Midwest. Nutrient loads to surface waters in this region are among the highest in the country, and contamination of surface and groundwater occurs from a variety of pesticides. In addition to improved farming systems that incorporate Best Management Practices and reduced inputs of nutrients and pesticides, the creation of buffer strips and other off-field sinks for chemical contaminants near their origin offers great promise for minimizing surface and groundwater contamination. In the Corn Belt, one of the most promising off-field strategies for reducing contamination of surface and groundwater is the restoration of wetlands in agricultural watersheds, specifically as sinks for agricultural chemical contaminants.
William G. Crumpton
Arnold G. van der Valk
Year of Grant Completion
Crumpton, William G. and van der Valk, Arnold, "Transformation and fate of nitrate and atrazine in freshwater wetlands" (1994). Leopold Center Completed Grant Reports. 51.