Abstract
The content of heavy metals around the metallurgical plants of East Kazakhstan in the soil and plants growing around these plants was studied. It was determined the concentration of heavy metals in soils, plant organs, it was calculated bioconcentration factor and the level of extraction of heavy metals by sunflower and lawn grasses. The study of sunflower plants and lawn grasses showed that the studied species accumulated a significant amount of heavy metals mainly in the roots. Sunflower plants and lawn grasses had high accumulation activity and accumulated a significant amount of heavy metals in their organs. Determination of the content of heavy metals in the soil showed a significant removal of heavy metals from the soil, which indicates a high degree of phytoextraction of heavy metals by the studied plant species.
Highlights
Toxic technogenic danger poses a great threat to humanity, and this threat is growing continuously
Determination of the content of heavy metals in the soil showed a significant removal of heavy metals from the soil, which indicates a high degree of phytoextraction of heavy metals by the studied plant species
Testing a mixture of lawn grasses and sunflower plants in the area of the Zinc Plant in Ridder and the Metallurgical Plant in Ust-Kamenogorsk showed that they have a remediation ability
Summary
Toxic technogenic danger poses a great threat to humanity, and this threat is growing continuously. Powerful enterprises of the mining and metallurgical industries and the largest non-ferrous and rare metal plants are operating here. Growing volumes of industrial waste form new technogenic landscapes. They become sources of intense dust generation and spread over hundreds of kilometers, polluting the environment and posing a threat to the health of the population and the biodiversity of the region [1]. Heavy metals entering the atmosphere with industrial emissions and, into the soil actively affect the vegetation and the ecosystem as a whole. The soils of the East Kazakhstan region are most polluted with Zn, Cd, Pb, Cu as a result of long-term activity of metallurgical plants in Zyryanovsk, Ridder and Ust-Kamenogorsk [2]
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