Study of the content of volatile species in the composition of atmospheric particles on the basis of thermal impact and recording by optical counters
V.V. Pol’kin, M.V. Panchenko, S.A. Terpugova, V.P. Shmargunov
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
Keywords: aerosol, volatile components, thermal impact, optical counter
Abstract
A description of the designed automated complex is presented. The results of measurements of the content of species with different volatility in six particle size ranges from 0.3 to 5 μm with artificial heating from 25 °С to 100 and 200 °С are discussed. The particle concentration was recorded by an optical counter. The instrumentation complex was tested in the period 2021-2023 in separate series of round-the-clock observations in different seasons. It has been shown that variations in the relative content of soluble sulfur compounds according to the counter data are in good agreement with the variability of the values of the parameter of condensation activity. In general, we believe that the use of this method will make it possible to obtain additional information about the seasonal and diurnal variations in aerosol composition in the intermediate range of particle sizes.
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