Yakovleva Evgenia V. RussiaSyktyvkarInstitute of Biology of Komi Scientific Centre of the Ural Branch of the Russian Academy of Sciences, 28 Kommunisticheskaya Str., Komi Republic, Syktyvkar 167982, Russiakaleeva@ib.komisc.ru Author's articles Polycyclic Aromatic Hydrocarbons in Betula nаnа (Betulaceae, Magnoliópsida) under the Impact of a Thermal Power Plant