Chemical and Biological Evaluation of the State of Urban Soil
V. A. EFREMOVA1, E. V. DABAKH2, L. V. KONDAKOVA1
1Vyatka State Humanitarian University, 610007, Kirov, Lenin str., 198
2Vyatka State Agricultural Academy, 610017, Kirov, Oktyabrskiy ave., 133
Keywords: urban soil, ecological evaluation, total and mobile forms of heavy metals, biotesting, toxicity
Abstract
Evaluation of urban soil for Kirov as example was carried out by means of chemical analysis and biotesting. Total content and the concentrations of mobile forms of heavy metals (Zn, Cu, Cd, Ni, Fe, Pb), pH of water and salt extracts, humus content were determined in different regions of the Kirov city. On the basis of the total index of tecnogenic pollution (Zc), urban soil is characterized by the low level of pollution. Test objects of different trophic groups were used for biotesting: Daphnia magna Straus , Paramecium caudatum, Escherichia coli. Results of the comparative analysis of the sensitivity of different biotesting methods are presented.
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