ACCUMULATION OF HEAVY METALS IN THE LEAVES OF ORNAMENTAL TREES TASHKENT CITY

Аннотация

This article presents the results of a study of the accumulation of heavy metals (Cu, Zn, Pb, Cd) in the leaves of ornamental trees in two families Magnoliaceae (2 species) and Pinaceae (2 species) in the urban environment of the city of Tashkent. Growing in the Botanical Garden of the Academy of Sciences of Uzbekistan, and on the central streets of Amir Temur in Tashkent. In the leaves of trees in the urban environment, there is an excess of background concentrations of lead, copper and zinc. The maximum content of heavy metals in trees noted in the areas of industrial enterprises and in areas with increased traffic load. Species features of metal accumulation revealed. Ornamental trees with a high metal storage capacity can be useful for phytoremediation of polluted urban areas. KEYWORDS Environmental pollution, heavy metals, accumulation, bio indicator phytoindication, phytourbocenoses, phytoremediation, atomic absorption spectrometry.