N. P. Romanov, A. V. Alekseeva, M. A. Vasilyeva, S. N. Dubtsov, V. N. Ivanov, O. I. Ozols, A. A. Paley, Yu. V. Pisanko, D. G. Sakhibgareev
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Generation of New Aerosol Particles and Their Evolution in Atmospheric Air: Results of Experiments in a Large Aerosol Chamber of RPA Typhoon
The results of experiments in the Large Aerosol Chamber of RPA Typhoon revealed the appearance of new aerosol particles larger than 15 nm in an aerosol-free volume of atmospheric air isolated from the external environment in darkness 20 min after the air purification. The generation of new particles is associated with the possible presence of precursor gases in the atmospheric air, which, under the influence of cosmic rays penetrating into the chamber, turn into aerosols. The experimentally observed evolution (over several days) of the size spectrum of the resulting particles shows that the generation of new aerosol particles lasts no more than 20 hours. During the evolution, the particles become larger and reach more than 100 nm size. After repeated purification of the air inside the chamber with the removal of newly generated aerosols, no new particles were detected for 10 days.
期刊介绍：
Atmospheric and Oceanic Optics is an international peer reviewed journal that presents experimental and theoretical articles relevant to a wide range of problems of atmospheric and oceanic optics, ecology, and climate. The journal coverage includes: scattering and transfer of optical waves, spectroscopy of atmospheric gases, turbulent and nonlinear optical phenomena, adaptive optics, remote (ground-based, airborne, and spaceborne) sensing of the atmosphere and the surface, methods for solving of inverse problems, new equipment for optical investigations, development of computer programs and databases for optical studies. Thematic issues are devoted to the studies of atmospheric ozone, adaptive, nonlinear, and coherent optics, regional climate and environmental monitoring, and other subjects.
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