Dendrology parks of National Academy of Sciences of Ukraine: problems of preservation of the historical plantings, connected with increase in anthropogenous influence at their territories (on an example Dendrological Park Olexandria)

Results of studying of degree of pollution of territory dendrological park Olexandria by technogenic pollutants are presented. Sources of pollution are established and the maintenance of harmful substances in underground waters and a surface water of ponds dendrological park Olexandria are defined. The comparative analysis of concentration of technogenic pollutants in Olexandria and in other ancient parks is carried out.