Cadmium in the anthropogenic load on the biota
Journal Title: Metallurgical and Mining Industry - Year 2017, Vol 9, Issue 1
Abstract
Environmental safety of mineral resources exploitation is an essential component of sustainable development. Currently, active work is carried out on the normalization of permissible impact on the environment. However, the current ecology of mining and processing industries is more economically focused and it is reduced to minimizing costs and fines for environmental damage. Mining enterprises are the source of anthropogenic cadmium entering the hydrosphere and soil. Cadmium can be accumulated in plants and living organisms, and then spread through the food chains. Cadmium and zinc are minerals genetically related to each other, for this reason, a number of chemical properties of these elements is similar. The degree of adverse effects on biota for cadmium is significantly higher than those of zinc, which is due to its toxicity at low concentrations. pH environments and sorption processes have a significant impact on the cadmium content in water and soil. On the basis of geochemical properties of cadmium and zinc, the measures to reduce the absorbability of cadmium by plants were proposed. The measures suggested by authors on cleaning waste water of mining enterprises from cadmium will limit penetration of toxic substance and its compounds in the surface water, which will significantly affect the ecosystem of the regions locating close to the enterprises reducing the anthropogenic load on soil, plants, and final recipient - human.
Authors and Affiliations
Maria Stefunko, Vera Zhilina, Irina Shadrunova, Tatiana Chekushina
Keywords
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