Monitoring of pollution of air in Biysk (Altai Territory) by aerosol components

Preservation of a favourable condition of atmospheric air is necessary for life and activity of the person. Biysk is alarge industrial centre of Altai Territory. In the city numerous enterprises of power, chemical, wood and food processing industrieswork. The basic substances defining the high level of atmosphere pollution in the city are benzpyrene, nitrogen dioxide, weighedsubstances (dust), formaldehyde, carbon oxide. A characteristic feature of Biysk air is atmospheric dust. Especially high concentrationof it is marked during the warm period of the year. It is promoted by the climatic features of Altai Territory: aridity of the climate, highspeed of wind, big areas of cultivated lands, which are exposed to wind erosion, and other factors. A considerable factor is also a sharplyincreased number of vehicles in the region. Dust has adverse influence on the human body. The concentration of dust in air of 0.08mg/m3 causes discomfort of people. Higher concentrations of dust cause deterioration of patients with lung diseases and increasemortality. Dust in atmosphere is a source of numerous diseases of body, breath, sight, and skin. Observation of air pollution in Biysk areconducted at three stationary posts since 1985. In article the basic attention is given to the distribution of concentration of the solidweighed particles in the atmosphere of Biysk during different seasons of year. The results show that the concentration of dust in the cityexceeds the admissible norms. The annual course of concentration of dust in the atmosphere with a maximum during spring and autumnand a minimum during the winter period is marked. Monitoring of solid weighed particles concentration has shown that since 2000Biysk has a gradual decrease in the concentration of dust in the atmosphere. It is connected, first of all, with industrial productionreduction, with actions for industrial enterprises gasification, attention strengthening on the condition of transport highways in the city.The tendency of reduction of dust concentration is marked during all the seasons of year and makes up about 0.007-0.010 mg/m3 a year.The estimation of the contribution of anthropogenic and natural factors to dust air pollution is made. The dependence is defined of theaverage monthly dust concentrations depending on the meteorological factors. The closest statistically significant negative dependence(factor of correlation minus 0.75) is observed with repetition of no and light wind.

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