Emission spectroscopy and flame atomic absorption spectrophotometry we
re used to measure the contents of the heavy metals: Cr, Mn, Fe, Co, N
i, Cu, Zn, Cd and Pb in mollusks Mytilus edulis Linne and in the water
s of the Avacha Bay. It is shown that the Mussel Mytilus edulis is a m
onitor and indicator of higher Clark values of Cr and Pb contents caus
ed by the metallogenic and untrophogenic influence in the Avacha Bay.