Thus 15 structures of polycyclic aromatic hydrocarbons (PAH) were found in soil and plants of the high layer in southern shrub tundra. Polyarenes in soil and plants were presented mostly by light molecular structures: naphthalene, fluorene and phenanthrene. We found an increase of polyarenes concentration in bushes in the contaminated site and the maximal rates of excess background values were noted for heavy polyarenes. We revealed uneven distribution of PAH on various members of plants depending on level pollution and species of a plant. Polyarenes arrived on a surface of bushes from the atmosphere at pollution, and accumulated in the top layer.