Specific Features of Content and Mobility of Heavy Metals in Soils of Floodplain of the Don River

Abstract

The gross heavy metal contents were studied in the main soil types of the floodplain of the estua-rine segment of the Don River. The ratio of elements strongly bound to soil components to those that are weakly bound was determined for the first time. It was established that geochemical features of the fixation and distribution of elements in compound forms in the studied soils are determined by the soil buffering capacity, the chemical properties of the elements themselves, and their association with sources of anthropo-genic emission.