The article is focused on investigation of bioavailable forms of trace metals Cr, Co, Cd, Ni, Zn, Pb, Cu in cores of lacustrine bottom sediments of four lakes in Murmansk (Northwest Russia). The studied lakes are located within the urbanized territory and used as local population recreational resource. It is important to research the content of bioavailable metals in bottom sediments for comprehensive environmental survey of the condition of the aquatic ecosystems. The results have revealed the most resistant elements (Cr, Cu, Pb). However, the tendencies of increasing content of bioavailable chemical forms for some trace metals (Zn, Co, Ni) in the recent lacustrine bottom sediments were showed.