Analysis of processes of chemical transformation of impurities in the atmosphere of the industrial area

Models for estimating the concentration fields of passive and chemically active impurities at large distances from the source have been developed from the data of the route observations. Their validation was made on the data of airborne observations of multicomponent pollution of the winter and summer boundary layer of the atmosphere of the Norilsk industrial region. For winter conditions, the results of estimating the fields of transformation of calcium and sulfur dioxide at distances of 60-100 km from sources of impurities are presented. On the basis of measurements of sulfur dioxide in the summer experiment, the correspondence of the processes of transverse expansion of the impurity flame to theoretical descriptions is shown and the direction of axial drift of the impurity is established.