ECOLOGICAL STATE OF ROADSIDE SOILS OF THE USSURIYSK- POGRANICHNY HIGHWAY ON THE BORDER TERRITORY

Zharikova E.A., Candidate O.S.(.A.P.S.R., Golodnaya O.M., Researcher , Popova A.D., Engineer

Bulletin of higher educational institutions. North Caucasus region. Natural sciences 2022; 4-2: 21-27

The main physical and chemical properties and the content of heavy metals in the topsoils of roadside’s were determined. Most soils are heavy loams, low-humus, slightly acidic and neutral. Motor vehicle emissions are the main source of contamination of roadside soils with Co, Cu, Cr, Ni, average concentrations of which are 1.3-4.8 times higher than the background level. The highest values of the NPI pollution index were found in the soils of a flat area with a high concentration of heavy-duty vehicles operating at idle. There are significant differences in determining the degree of soil contamination with using various geochemical indices.

DOI 10.18522/1026-2237-2022-4-2-21-27