Models for estimating the regional transport of active and passive impurities based on the data of route observations in the vicinity of point and area sources are proposed. Approbation of models on the data of airborne probing of atmospheric pollution in the Norilsk industrial region was carried out. In the range of distances of 60-100 km from the source of emissions, the active gas-to-particle conversion was analyzed on the basis of the observed data.
The method to calculate the wind fields in the low atmosphere based on the use of satellite images of smoke plumes from the chimneys of industrial plants various heights is proposed. The model is based on Ekman layer equations. The results of calculations of the vertical profiles of wind velocity components and the coefficient of the turbulent exchange are given for the city of Omsk, an example. Possibilities of using approach to analyze the processes of pollution of urban atmosphere are discussed.
With satellite data on pollution of snow cover and data of meteorological observations, some fields of dust sedimentation from high chimneys of the Iskitim cement plant are studied. In the absence of snowfalls, a possibility to analyze of the areas of pollution, which are formed in time intervals from several days to several weeks in the vicinities of industrial enterprises, is shown.
The article shows the results of dust pollution level of air in the vicinity of coal-fired power plant of Omsk city on the base of study snow cover pollution. The samples were collected west-, east- and northeastwards at a distance of 0,75-6 km from the chimney for range-finding of dust emission transfer. The research findings have shown the dust load changes from 53 till 343 mg•(m<sup>2</sup>·day)<sup>-1</sup> in the vicinity of power plant. The ultimate dust load was detected at a distance of 3-3,5 km. On the basis of asymptotics of equation solution for impurity transfer, we have made numerical analysis of dust load rate. With the usage of ground-based facilities and satellites we have determined the wind shifts in the atmospheric boundary layer have a significant impact on the field forming of long-term dustfall.
The problems of reconstructing the snow cover pollution fields from dusting, point, linear and area sources according to ground and satellite observations are considered. Using reconstruction models, the methods of the combined analysis of the characteristic images of snow cover pollution haloes in the vicinity of sources of dust and contact data observations have been developed. On the basis of the numerical data analysis of ground monitoring and satellite imagery, the stable quantitative regularities between the fields of dust fallouts and the intensity of a change of tones of gray in the radial directions relative to the main sources are identified.
A model for the reconstruction of the surface concentration of a heavy non-homogeneous substance transfered in the atmosphere is proposed. The model is used to simulate the snow surface contamination by benzo(a)pyren in the vicinity of Power Station-3 in the city of Barnaul. The effects of wind rotation in the atmospheric boundary layer on the field of long-term aerosol substance are assessed.