CONCENTRATIONS AND SOURCES OF POLYCYCLIC AROMATIC HYDROCARBONS IN WATER AND SEDIMENTS OF RIVERS OF NORTHERN OIL AND GAS PRODUCING TERRITORIES OF WESTERN SIBERIA

• Published in: Bulletin of the Tomsk Polytechnic University Geo Assets Engineering
• Main Authors: Natalia A. Volkova, Irina S. Ivanova, Denis A. Sokolov, Yuliya V. Kolubaeva, Daria I. Chuikina
• Format: Article in Journal/Newspaper
• Language: Russian
• Published: Tomsk Polytechnic University 2023
• Subjects: polycyclic aromatic hydrocarbons; river waters – bottom sediments; sources; high-performance liquid chromatography; western siberia; Engineering geology. Rock mechanics. Soil mechanics. Underground construction; TA703-712; Arctic; nenets; Nenets Autonomous Okrug; Yamalo Nenets; Yamalo-Nenets Autonomous Okrug; Siberia
• Online Access: https://doi.org/10.18799/24131830/2023/4/3924; https://doaj.org/article/bc90f9a25aa64228b2139fb25f65c55f

The relevance. Huge reserves of both fresh water and hydrocarbons are concentrated on the territory of Western Siberia, the extraction and development of which is increasing every year. Oil is one of the main environmental risk factors for the natural ecosystems of the North. Among the components of oil, polycyclic aromatic hydrocarbons stand out, which have carcinogenic and mutagenic properties and have a negative impact on natural ecosystems. However, there are quite a lot of sources of these organic pollutants entering the environment, including they can be of both natural and anthropogenic origin. The relevance of the study of the content and composition of these components is caused not only by their toxicity, but also by their resistance to chemical and biological transformation, high migration activity and ability to accumulate in natural environments. The aim of this work was to study the individual composition and distribution of polycyclic aromatic hydrocarbons in water and bottom sediments of rivers, and to identify possible sources of polycyclic aromatic hydrocarbons entering water bodies of the Arctic zone of Western Siberia. Objects: river waters and bottom sediments taken from 8 watercourses in the territory of the Yamalo-Nenets Autonomous Okrug. The objects were chosen in such a way as to cover rivers of various orders within the catchment basins of the main rivers of the Yamalo-Nenets Autonomous Okrug. Methods. The content and individual composition of polycyclic aromatic hydrocarbons in water and bottom sediments of rivers was determined in the laboratory of physical and chemical studies of core and reservoir fluids of the Trofimuk Institute of Petroleum Geology and Geophysics SB RAS (Tomsk) using high-performance liquid chromatography. Statistical processing of the obtained data was carried out using the Microsoft Office Excel and PAST V2.17 software packages. Results. The features of the distribution of polycyclic aromatic hydrocarbons in water and bottom sediments of the rivers of the ...