Assessment of oil pollution of Lake Chany (Novosibirsk region).

The paper presents the results of an investigation of the composition of organic matter in water and bottom sediments of Lake Chany (Novosibirsk region). A wide range of lipid biomarkers (acyclic, aromatic and naphthenic hydrocarbons, acyclic and alicyclic oxygenated organics) have been identified by gas chromatography-mass spectrometry. The main bioproducers and environmental conditions leading to the dominance of individual representatives of the biota have been determined. The presence of oil steranes, alkanes, and cyclohexanes in the lake water suggests the presence of motorboat diesel fuel in the water. Compounds for household use—triphenyl phosphates and phthalates—have been identified, which are used as plasticizers in the production of polymer materials. [ABSTRACT FROM AUTHOR]