Figure 3. Ecological-geochemical map of soil contamination of Cr
Thus, we can conclude that the distribution of heavy metals in the studied area,
mainly depends on the height of the terrain. That is mean that in the place where relief
is lower, the washdown and removal of groundwater with fine earth take place,
containing heavy metals, on agricultural fields and nearby areas, namely: water objects
used by residents for bathing and fishing, natural sources, where are constantly
observed the use of water.
CONCLUSION
The analysis of the content of heavy metals in the soils is a representative indicator
of the ecological condition of the territory. For spatial interpretation and visual
demonstration of data on the contamination of soil complexes with various chemical
compounds, it is worthwhile to use dimensionless indicators, in particular, coefficient
of concentration and intensities of pollution. These indexes are the main ones in the
assessment of the ecological and geochemical conditions of populated areas because
they are complex that portrays the soil pollution, atmosphere, and water.
Mapping the migration of heavy metals gives us a clear assessment of the
pollution of the territory. The boundaries of dangerous and very dangerous zones are
established, and in which the suitability of the use of soil for agricultural activities is
strictly prohibited.
The results obtained and the assessment of the conditions of the ecological and
geochemical situation indicate that the content of zinc and chromium is in significant
excesses, and therefore pollution comes from penetration of surface and groundwater,
into biota, as well as evaporation into the atmosphere. Therefore, pollution is extremely
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