Abstract
Summary The comprehensive geoecological study of the area closed to the north-western Landfill №5 for the municipal solid waste disposal shows the ecologically negative impact on the environment. It is determined that the existing soils are affected by the significant geochemical transformation. They are characterized by the considerable accumulations of the heavy metals (HMs). In comparison with the conventional pure soils the soil contents of Cu, Zn, Ni, Cr and Pb are 8, 12, 3, 2, 17 times more, respectively. As a result of soil pollution by HMs the number of mobile forms of these metals is increased: for Zn – 4, Ni – 5, Cu – 6, Pb – 8 times. The anomalous high HMs pollution for the bottom deposits is identified: for Zn – in 800 mg/kg that is 14 times more than maximum allowable concentrations (MAC); for Cu – 150 mg/kg that is 4. 5 times more than MAC. Average Pb content there exceeds its MAC and is equal to 72 mg/kg. Therefore, the bottom deposits have the hazardous level of pollution. It is shown that the elements of considerable accumulations in grass vegetation are Cu, Cr and Ni at the biological absorption coefficient more 2. 0. The physical and chemical studies of surface waters show that the contents of microelements (F, Cr, Ni, Cu, Fetot. and Pb) there don't exceed the MAC, but they are higher than the background values. The comparison of the average chemical composition for the ground water samples from the wells of the Landfill area and the regulatory standards indicates that the standard general sanitary criteria for pollution level of these waters belong to the middle and high levels with the considerable exceeds of the MACs for Fe and Ni.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.