FEATURES OF ACCUMULATION OF IRON AND MANGANESE IN THE SOILS OF THE CITIES OF ARKHANGELSK INDUSTRIAL AGGLOMERATION

Abstract

The ecological state of soils in the cities of Arkhangelsk industrial agglomeration is assessed by the degree of their contamination with iron and manganese. A scale of ecological regulation of the content of mobile forms of these metals in the soils is proposed. The peculiarities of accumulation of mobile forms of iron and manganese in the soils of different landscapes and the major functional areas of Arkhangelsk, Novodvinsk and Severodvinsk are analyzed. It is found that the soils of urbanized landscapes of the cities of Arkhangelsk industrial agglomeration actively accumulate iron and manganese. In technogenic and anthropogenic zones of the cities, soils uncontaminated or slightly contaminated with mobile forms of iron and manganese dominate. The natural-anthropogenic zone of Arkhangelsk exhibit medium, high and very high levels of contamination with these metals.