Ecological Impacts of Effluent in Surface Waters and Fish 2009 Report

Phytoestrogens are plant-based compounds that are discharged into surface water from wastewater treatment plants and certain industrial facilities. Phytoestrogens mimic the hormone estrogen and can therefore interfere with normal biological development. For example, it is known that they can feminize male fish. However, the broader effects of phytoestrogens have not been studied and almost nothing is known about their long-term fate or persistence in the environment. Through this appropriation scientists from the University of Minnesota and St Cloud State University will collaborate to examine the persistence of phytoestrogens in surface waters and their effects on fish. Findings will be used to enhance wastewater treatment and help facilitate continued industrial development and production in Minnesota done in an environmentally sensitive manner.