PJB-2017-705
HEAVY METAL ACCUMULATION IN PLANTS OF ATYRAU REGION
Zarina Inelova
Abstract
The article represents data on determination of heavy metals (Pb, Cd, Zn, Cu, Mn, Co, Ni) in the samples of dominant plants and soils of Atyrau region in Kazakhstan. High population density and enhanced agriculture and industrial activity are main reasons for degradation and pollution of vegetation in these area. Accumulation of heavy metals in forage plants and subsequent transfer of metals among food chain might have negative impact on population health. The areas for sample collection were as follows: point 1 (Atyrau, farm “Ulan”), point 2 (Kulsary, v.Turgysba). point 3 (v.Inder, farm Isayev). The ability for heavy metal accumulation was different in various plant species. It was revealed that Artemisia terrae-albae was able to accumulate a largest concentration of heavy metals as lead, zinc, nickel and manganese comparing to other species. Tamarix ramosissima and Ceratocarpus arenarius were distinctive as having the least amount of heavy metals comparing to other species growing in similar environmental conditions. In all studied areas the content of heavy metals was within maximum permissible level. However, it was observed the insignificant evaluation of zinc and cobalt up to 1.09–1.72 MPC that is might be related to physiographic and geologic factors of studied area.
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