COMPARATIVE ANALYSIS OF THE APPROACHES TO THE ECOLOGICAL RISK DETERMINATIONOF THE SOIL CONTAMINATION BY THE CADMIUM
Journal Title: Наукові праці. Серія "Техногенна безпека" - Year 2016, Vol 280, Issue 268
Abstract
The functioning of urban ecosystems contributes additional revenues of the dangerous toxicants in the significant quantities to the biogeochemical cycles. Cd is an element of the first class toxicity, which is able to cause teratogenic, mutagenic and carcinogenic effects on humans. So the ecological risk of the soil contamination by the cadmium is a need to determine for management of the quality environment and minimization of the negative impacts to the urban ecosystems in the technogenic loaded regions. The comparative analysis of the ecological risk determine has been conducted for the soil contamination by the cadmium, as a relative value by the method of L. Hakanson and probabilistic value by the Weibull distribution function. Investigations have been carried out as part of the ecological monitoring of Dnepropetrovsk soil. Discrepancy of the ecological risk rationing has been discovered for the contamination levels by Cd. It has been confirmed the calculation of this index for the anthropogenic impact in 1 MAC. The increasing of the ecological risk level, as a probability value, depends from the growth of the urbanized geochemical background and variability degree of Cd concentration in the city area. The relationship between the approaches has been established, namely, significant and unacceptable ecological risk in the right-bank part of the city with a large number of industrial enterprises
Authors and Affiliations
T. Yakovyshyna
Keywords
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