TY JOUR TI REGIONAL AND GLOBAL BACKGROUND VALUES IN THE ASSESSMENT OF HEAVY METALS POLLUTION OF WATER BODIES KW sediments KW heavy metals KW pollution KW background values KW igeo-class KW sorbing fraction JO Melioration and Water Management AU Tolkachev, G.Y. AU Il'ina, T.A. AU Get'man, E.N. PY 2024 IS 2024 PB ANO Editorial Board Melioration and water management