TY CONF TI ESTIMATION OF THE DEGREE OF ATMOSPHERIC AIR POLLUTION IN NOVOCHERKASSK BY THE FLUCTING ASYMMETRY OF BIRCH LEAVES WITH PENDULA (BETULA PENDULA) KW pollution KW phytoindication KW fluctuating asymmetry KW environmental monitoring KW atmospheric air JO Reproduction, monitoring and protection of natural, natural-anthropogenic and anthropogenic landscapes AU Ugarov, I.A. AU Kulakova, E.S. PY 2022 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov