ANALYSIS OF THE IMPACT OF THE PETROCHEMICAL INDUSTRY ON THE CONDITION OF SURFACE WATER BODIES

Abstract

The purpose of the study is to assess the consequences of the impact of the petrochemical industry on the condition of water bodies; studying the level of anthropogenic eutrophication and toxicity of a water body. The article presents the results of using the developed method for determining the eutrophication coefficient for surface rivers, which was carried out on water bodies experiencing the maximum impact of anthropogenic and technogenic factors.The development of research in this area will create the basis for the development of a model for predicting the processes of eutrophication and toxication of water bodies, which is important not only for the industrial hub of the city of Sterlitamak, but also for many regions with a high technogenic load.In this work, the Sterlya River was chosen as the object of study, as a water body located in the zone of influence of chemical and petrochemical enterprises. The laboratory experiment was carried out in accordance with the approved methodology for determining the toxicity of various water bodies and solutions of chemical substances PND F T 14.1: 2: 4.19-20131. During the experiment, indicators such as germination, average length and average dry weight of watercress seedlings were measured.The use of integral methods, which include biotesting methods used to diagnose the state of environmental components in areas with high anthropogenic load, makes it possible to obtain a comprehensive assessment of the object being studied, taking into account many factors, such as natural conditions, environmental parameters, etc.The experimental data obtained confirm both the stimulating and inhibitory effects of the test sample on the analyzed parameters of the test object, which is caused by simultaneous toxic effects and eutrophication processes.It is shown that the proposed method can be used to study the integral toxicity of not only surface and groundwater, but also wastewater, and also to record the dynamics of toxicity in space and time.