Abstract
Sh. Rashidovsky district is one of the territories where the quality of agricultural land has decreased, the main land of the district is located near the city center, industrial enterprises pollute the soil with various pollutants, the natural balance is disturbed and the ecological environment is polluted. During the survey of soil pollution with heavy metals, the concentration of heavy metals in the soil in the layers (0-10, 10-20, 20-30, 30-40, 40-50, 50-60, 60-70 cm) of agricultural land was analyzed. Analysis of soil contamination with heavy metals in the territory shows that a slight increase in the MCL for soils was observed for cuprum, zinc, chromium, nickel, cobalt and arsenic. The increase occurred mainly in the upper layer of 0-30 centimeters. The concentrations of all other heavy metals do not exceed the MCL, which confirms the conclusions drawn in the review section of the study on the low informative value of heavy metals in environmental monitoring. To reduce the negative impact of heavy metals on the light gray lands of the Sh. Rashidov region, it is necessary to apply mineral fertilizers, grow crops that are resistant to pollution.
Highlights
The problem of soil pollution with heavy metals is relevant in the technogenic and agricultural sectors
Rashidovsky district is one of the territories where the quality of agricultural land has decreased, the main land of the district is located near the city center, industrial enterprises pollute the soil with various pollutants, the natural balance is disturbed and the ecological environment is polluted
Rashidovsky district are given in table 1
Summary
The problem of soil pollution with heavy metals is relevant in the technogenic and agricultural sectors. Heavy metals are among the main pollutants in the environment. Many substances of this group, such as lead, copper, zinc, cadmium, can cause immunological, oncological and other diseases, even in very small quantities. Sorption cleaning of soils from heavy metals studied by A.I. Vezentsev and others [2]. In the course of the experiment, the optimal ratio of clay: soil was established, at which the cleaning of the soil from heavy metals is most effective. These authors have not studied soil cleaning with other types of heavy metals
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