Hydrochemical studies of water bodies in the area of oil-producing complexes
L.I. Svarovskaya, L.K. Altunina, I.G. Yashchenko
Institute of Petroleum Chemistry of the Siberian Branch of the RAS, 3, Academichesky ave., Tomsk, 634021, Russia
Keywords: гидрохимические исследования, водосборный бассейн рек, загрязнение нефтепродуктами, ароматические углеводороды нефти, картографирование, ГИС-технологии, hydrochemical studies, river watershed, oil pollution, oil aromatic hydrocarbons, mapping, GIS technologies
Abstract
Hydrochemical studies were carried out on the territory of oil-production enterprises of the Tomsk region located in the floodplain of the Ob and Vasyugan rivers. It was found out that oil products whose concentration exceeds the MPC value by 3-5 times are rated as the largest contributors to the pollution of rivers flowing through the territories of oil fields. The contents of chlorides, sulfates, calcium, salts of heavy metals, and magnesium exceeds the maximum permissible levels by several tens of times. The most dangerous for human health aromatic compounds were identified among oil pollutants, including pyrenes, fluoranthenes, chrysenes, benzanthracenes, which constitute a group of carcinogens. The main impact on water quality is exerted by surface runoff from the oil-polluted territory of the river watershed. For the spring period of 2014 the volume of oil products removed to the network of the Ob river was 3.2 tons on the territory of the Sovetskoye oil field, while the annual runoff was 4.9 tons. Geochemical data could be successfully used for mapping oil spill using GIS technologies and planning preventive measures for localization and restoration of contaminated sites in areas of oil and gas producing complexes.
|
