%0 Journal Article %T Heavy metal pollution of ecosystem components in the area of copper-nickel sulfide ore occurrences "Elanskoe" and "Elkinskoe" of Novokhopersk district, Voronezh region %A Kharchenko, N.N. %A Yaitskikh, M.. %K heavy metals, biological monitoring, pollution of ecosystems components %J Forestry Engineering Journal %D 2014 %N 4 %P 10 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov