полициклические ароматические углеводороды

Polycyclic Aromatic Hydrocarbons in Betula nаnа (Betulaceae, Magnoliópsida) under the Impact of a Thermal Power Plant

The content of polycyclic aromatic hydrocarbons (PAH) in Betula nаnа L. and soil organogenic horizons was studied at a control site and sites affected by a thermal power station (TPS) at distances of 0.5, 1.0, and 1.5 km from the source of pollution. The PAH distribution over the vegetative organs of dwarf birch was irregular. The qualitative composition of PAH in different organs of dwarf birch was similar. No significant changes in the PAH content in dwarf birch organs and at the surface of these organs at different distances from the TPS were revealed.

Assessment of indices of tundra phytocoenosis pollution with polycyclic aromatic hydrocarbons

14 structures of polycyclic aromatic hydrocarbons (PAHs) were identified in the organogenic soil horizon and plants of the south shrub tundra belt, at a background plot and at a coal mine. The polyarenes in soils and plants were mainly represented by light structures. On the background and polluted areas, mosses of Pleurozium schreberi, Polytrichum commune and grasses of Deschampsia caespitosa, Festuca ovina contained the highest PAH amounts. PAH bioaccumulation in plants is mainly dependent on their physiological features.