Study of the role of particles of different size in the aerosol condensation activity by the method of diffusion selection

When studying the condensation growth of atmospheric aerosol, many researchers note the dependence of the hygroscopic properties on the particle size. To change the aerosol size spectrum, we use diffusion selection, i.e. sequential removal of the finest fraction from the air flow. This makes it possible, on the one hand, to more accurately describe the distribution function in the size range r <0.2 mu m, and, on the other hand, to increase the contribution of the intermediately dispersed fraction (r = 0.5 - 1 mu m) to the formation of the optical signal. This work is devoted to the study of the sensitivity of the parameter of condensation activity of particles to changes in their size spectrum.