Soldatova Viktoria Yu. RussiaЯкутскNorth-Eastern Federal University, 58 Belinsky Str., Yakutsk, Republic of Sakha (Yakutia), Russia, 677027solvik75@mail.ru Author's articles Bioindication of Environmental Quality of the Yakutsk City Administrative Districts on the Basis of Leaf Fluctuating Asymmetry and Seed Quality of the Silver Birch Betula pendula Roth