The average content of the elements Fe, Mn, Zn, Pb, Cu, Cr, V, Co, Cd, Ni, As, and Mo in the subcolloidal fraction of bottom sediments in the northern and central parts of the Amur Bay (in Russia) was determined. An increase of 5–17% in the content of the metals Pb, Co, Ni, Zn, Cr, V, and As in bottom sediments affected directly by the Razdolnaya River was determined and was found to be associated with sorption on Fe and Mn oxyhydroxides. An increase of 21–55% in the content of the metals Cu and Mo and of the metalloid As compared to their average content in the bottom sediments of the bay was found to be associated with the accumulation by humic substances.
Accumulation of heavy metals in sediments of Amur Bay (Sea of Japan) under the infl uence of biochemical factors