Citation:Nirbadha, K.G.S., Liyanage, J.A. and Amarasinghe, M.D., 2003. A preliminary study on the presence of heavy metals in aquatic plants from a freshwater wetland at Kelaniya. Proceedings of the Ninth Annual Forestry and Environment Symposium, Department of Forestry and Environmental Science, University of Sri Jayewardenepura, Sri Lanka.