INTENSITY OF THE PROCESSES OF THE ORGANIC XENOBIOTICS TRANSFORMATION IN SOIL

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Visnyk LNAU: Agronomy 2021 №25: 34-39

INTENSITY OF THE PROCESSES OF THE ORGANIC XENOBIOTICS TRANSFORMATION IN SOIL

Ivankiv M., Candidate of Agricultural Sciences
ORCID ID: 0000-0002-4911-2877
Kachmar N., Candidate of Agricultural Sciences
ORCID ID: 0000-0003-4471-5895
Datsko T., Candidate of Agricultural Sciences
ORCID ID: 0000-0002-2957-1822
Dydiv A., Candidate of Agricultural Sciences
ORCID ID: 0000-0002-4436-9008
Pavkovych S., Candidate of Agricultural Sciences
ORCID ID: 0000-0002-0844-3071
Balkovskyi V., Candidate of Agricultural Sciences
ORCID ID: 0000-0002-3995-1909
Lviv National Agrarian University

https://doi.org/10.31734/agronomy2021.01.034

Annotation

The use of various agrochemicals in agriculture is an integral part of modern technologies for growing crops. Therefore, their long-term use in vast areas has led to large-scale pollution.

The results of our research show that the soils of the surveyed fields in the model areas contain pesticides in different amounts and create a certain background of pollution. However, in the vast majority of the studied samples, the level of their content does not exceed the maximum allowable concentration. At a distance from the warehouse, we observe a gradual decrease in the content of pesticides, and at a distance of 50 m from the warehouse in the arable soil layer exceedances of the MPC at the studied points and soil, horizons are not observed.

Environmental pollution by persistent pesticides and their metabolites is one of the most negative factors affecting soil quality. Locally contaminated areas adjacent to the sanitary protection zones of pesticides are the territories with certain areas of high concentration of substances that degrade soil quality.

To obtain reliable data on the regularity of distribution and peculiarities of migration of organochlorine pesticides and their isomers in soils, it is necessary to study the natural environment as a whole, at all levels of the organization. The task of the urgent organization of agri-environmental monitoring in the areas that have reached a critical state becomes clear. Therefore, to detect chemically degraded and contaminated soils, an agroecological assessment of soil contamination with residual amounts of organochlorine pesticides, namely HCH and its isomers (α-HCH; β-HCH; γ-HCH) was performed within the sanitary zone.

Studies on dark gray podzolic soil in the Western Forest-Steppe of Ukraine, within the sanitary protection zone of inactive warehouses of agrochemicals in the village of Hlynsko and the village of Viazova, Zhovkva district, Lviv region, it has been established that the process of HCH and self-purification of soils from xenobiotics is active. It was found that the pollution is spotty, due to the peculiarities of the operation of the studied area in the past.

Key words

organochlorine pesticides, dark gray podzolized soils, accumulation, transformation, pollution soil

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