Condensation Activity of Different-Size Particles of Atmospheric Aerosol Using Photoelectric Counter Measurements

We consider the results of experimental study of the condensation activity of different-size particles; the study was performed from October 2020 to June 2021, using an AZ-10 photoelectric counter, equipped with a system for artificial humidification of atmospheric aerosol taken from the atmosphere. In parallel, hygrograms of the volume aerosol scattering coefficient were measured, using M903 integrating nephelometer. The atmospheric conditions and aerosol characteristics during the measurement period were typical, confirmed through a comparison with data from multiyear studies of the condensation activity parameter for the scattering coefficient at an angle of 45°.