SOIL CONTAMINATION WITH HEAVY METALS IN THE SH. RASHIDOV DISTRICT OF DZHIZAK REGION AND METHODS OF THEIR DECREASE FROM THE SOIL COMPOSITION

Abstract

Sh. Rashidov district is one of the territories where the quality of agricultural land has decreased, the main land of the district is located not far from the city center, industrial enterprises pollute the soil with various pollutants, the natural balance is disturbed and the ecological environment is polluted.Soil ecology (factors of soil formation, dynamics and evolution of soils; ecological functions of soils; soil productivity; soil ecosystems; influence of anthropogenic factors on the state of soils; succession processes in soil ecosystems)When determining the field composition and assessing the composition of the soil of the Sh. Rashidovsky district during field studies conducted in July 2020, 9 samples of soil layers 0-30 cm, 30-50 cm and 50-70 cm were taken from the sample.Analysis of soil contamination with heavy metals in the territory shows that a slight increase in the MPC for soils was observed for honey, zinc, chromium, nickel, cobalt and arsenic. The increase occurred mainly in the upper layer of 0-30 centimeters. Concentrations of all other heavy metals do not exceed the MPC, which confirms the conclusions drawn in the review section of the study on the low informative value of heavy metals in environmental monitoring.