Effect of Atmospheric Pollution on the Ecosystems of the Neryungri Fuel and Energy Complex (Yakutia)
S. YU. ARTAMONOVA1, YU. P. KOLMOGOROV1, V. F. RAPUTA2 and T. V. YAROSLAVTSEVA2
1Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Koptyuga 3, Novosibirsk 630090 (Russia) E-mail: artam@uiggm.nsc.ru
2Institute of Computational Mathematics and Mathematical Geophysics,
Siberian Branch of the Russian Academy of Sciences, Pr. Akademika Lavretyeva 6, Novosibirsk 630090 (Russia)
Pages: 491-500
Abstract
Atmospheric pollution of ecosystems in the region of the Neryungri fuel and energy complex (NFEC) was considered. Mathematical modeling of the processes of aerosol transport of dust, SO2, NO2 was carried out by means of the formulation of the direct and inverse problems. An adequate model, in which the regions with different degree of atmospheric pollution were distinguished, was chosen on the basis of comparing the calculated dust content of the snow cover with the data experimentally measured for 22 sites. A correlation analysis of changes in the chemical composition of the upper horizons of top-soil and larch tissues (Larix cajanderi Mayr.) depending on the degree of atmospheric dust content was carried out. It was revealed that the concentrations of heavy metals (Fe, V, Ni, Cu, Zn, Ga, Mo, Pb) in larch tissues increase with an increase in atmospheric pollution. The correlation coefficient for needle nodes is not lower than 0.8 while no such correlation is observed for soil. An inverse correlation was established for biophilic element Mn: the higher is environmental pollution; the lower is its content in larch tissues. The accumulation of heavy metals in the organs if larch increases in the row: young sprouts-needles-buds.
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