PHYSICO-CHEMICAL STUDY OF ENVIRONMENTAL COMPONENTS AT THE UZEN OILFIELD, MANGYSTAU REGION

Abstract

Introduction. Environmental assessment is an important task for ensuring environmental safety and sustainable development of territories. As part of this work, studies were conducted on the territory of JSC Ozenmunaigas — the Uzen deposit, the GU-85 and GU-88 landfills. The purpose of this work was a comprehensive assessment of the level of pollution of atmospheric air, soil and groundwater using modern analytical methods. Methods. X-ray phase analysis, infrared spectroscopy, atomic emission and gas chromato-mass spectrometry are used to determine the mineral, organic and elemental composition of samples, as well as the analysis of petroleum products, phenols and synthetic surfactants. Sampling and analysis were carried out in accordance with state standards and methodological guidelines in the field of environmental monitoring. Results and discussion. The data obtained showed that the concentrations of pollutants are within the maximum permissible limits. The analysis of uncontaminated soils showed a coincidence of the component composition at different landfills. No excess levels of major pollutants, including petroleum products and heavy metals, were detected in the air and soil. A slight excess was recorded only for individual indicators in groundwater, which indicates a local anthropogenic impact. In general, the environmental situation in the studied areas is assessed as stable and safe.