Biomonitoring of Heavy Metals Pollution in Lakes of Kyiv (Ukraine) Using Submerged Macrophytes and Assessment of Their Phytoremediative Potential

Abstract

The possibility to use the submerged aquatic plants (macrophytes) <i>Cera-tophyllum demersum</i> L., <i>Myriophyllum spicatum</i> L. and <i>Potamogeton perfoliatus </i>L. for biomonitoring of heavy metal pollution of the water bodies in urbanized areas was considered. The degree of the metals' (Mn, Pb, Ni, Cd) accumulation by the considered plants was determined and correlation with their concentration in water of the lakes of Kyiv (Ukraine) was established. The coefficients of the metals' biological accumulation by the submerged macrophytes were calculated. It was established that maximal amount of heavy metals was accumulated by the aquatic macrophytes in the lakes Minske, Luhove, Bohatyrske, Kyrylivske and Yordanske (Opechen lake system). The minimal content of heavy metals was in the aquatic macrophytes in the lakes Redchyne, Verbne, Synie, Tyagle and Telbin. The use of <i>C. demersum, M. spicatum</i> and <i>P. perfoliatus</i> for phytoremediation and restoration of ecological state of the water bodies contaminated by heavy metals is recommended.