|
2020, N 1 (39) |
|
ECOLOGY
|
|
Trifonova T.A., Chugay N.V., Kulagina E.Yu., Kurochkin I.N., Krasnoshchekov A.N., Larionov M.V. |
|
|
Mapping of heavy metal pollution assessment results for Vladimir soils using GIS technologies |
|
|
In order to analyze the spatial distribution of heavy metals pollution in urbanized soils adjacent to schools in the city of Vladimir, soil samples were selected and studied. The territory of the city is represented by sod-mid-podzolic and gray forest urbanized soils. Soil samples were analyzed for the content of lead, zinc, copper, nickel, manganese, cobalt and chromium.
A comparison is made of the obtained indicators with the maximum permissible concentrations and background values. Patterns were established between the proximity of the studied plots to industrial enterprises and the concentration of heavy metals in the soil. The construction of interpolated surfaces with the application of analysis data on them made it possible to identify the level of pollution both near schools and throughout the city. The coefficients of accumulation of heavy metals in soils were calculated and priority pollutants with the highest rates of accumulation coefficient were identified. By calculating the total accumulation rate, the territory of the city is differentiated by the degree of danger.
Keywords: URBOZEMES, HEAVY METALS, SOIL CONTAMINATION, EMISSIONS OF INDUSTRIAL ENTERPRISES, MPC, TOXICITY, GIS TECHNOLOGIES |