TY JOUR TI Monitoring of heavy metals and arsenic in bottom sediments of water bodies KW pollution monitoring KW sediments KW heavy metals KW arsenic KW water bodies KW technogenic pressure KW assessment of state KW schematic maps JO Melioration and Water Management AU Korzhenevsky, B.I. AU Tolkachev, G.Y. AU Kolomiycev, N.V. PY 2020 IS 2019 PB ANO Editorial Board Melioration and water management