Toxic effects of atrazine on freshwater mussels (Elliptio complanata).

Atrazine (ATR) is a commonly found herbicide contaminant in water bodies across the United States. In this study, native freshwater mussels (Elliptio complanata) were investigated to determine histopathological effects and bioaccumulation of ATR under laboratory conditions. Mussels were collected from the Rice Creek Field Station, Oswego, NY, and were exposed to two different concentrations of ATR (15 and 150 μg/L) for 4 weeks.