ASSESSMENT OF THE DEGREE OF SOIL POLLUTION IN THE ZONE OF TECHNOGENIC INFLUENCE AT THE OIL REFINING PLANT

Abstract

This article examines the level of soil contamination with heavy metals in the zone of technogenic influence of the Atyrau Oil Refinery (AOR). The main objective of the study is to determine the concentration of heavy metals (arsenic, nickel, chromium, cadmium, etc.) in the chemical composition of the soil near the plant and assess their environmental safety. The research was conducted using field and laboratory-analytical methods.

The total soil contamination index (Zc) was calculated, and its hazard level was assessed. The results revealed that the concentrations of heavy metals in certain areas significantly exceed the maximum permissible concentrations (MPC). Particularly concerning are the elevated levels of chromium and nickel, which pose serious risks to ecosystems and human health.

The findings provide specific recommendations for reducing soil contamination and improving the ecological situation. The study emphasizes the need to implement an environmental monitoring system and carry out remediation measures for polluted areas.