Trace metal (As, B, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Zn) concentrations in particulate and the dissolved forms in water were examined at 8 stations in Lake Uluabat between May 2008 and May 2009. Concentration ratios between the particulate metals and the dissolved metals in the water were determined. Logarithms of the ratios were calculated and varied between 1.5 L. kg(-1) and 4.2 L. kg(-1). Their order of magnitude was as Mn>Fe>Ni>Cu>Pb>Cr>Zn>Cd>As>B. Logarithms of the ratios were compared with sorption distribution coefficient values in literature about the metals. When the variations in logarithms of the ratios calculated according to months and stations were examined, it was determined that desorption of As, Cr, Cd, Cu, Ni, Zn, B and Pb from suspended solids to water occurred in all stations throughout the year but Fe and Mn were in equilibrium.