Organic aerosol in air of Siberia and the Arctic. Part 1. Geographic features and temporal dynamics
M.Yu. Arshinov1, B.D. Belan1, N.G. Voronetskaya2, A.K. Golovko2, D.K. Davydov1, A.S. Kozlov3, G.S. Pevneva2, D.V. Simonenkov1, A.V. Fofonov1
1V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
2Institute of Petroleum Chemistry of the Siberian Branch of the RAS, 4, Academichesky ave., Tomsk, 634021, Russia
3V.V. Voevodsky Institute of Chemical Kinetics and Combustion of the Siberian Branch of the RAS, 3 Institutskaya str., 3, 630090, Novosibirsk, Russia
Keywords: атмосферный аэрозоль, состав, углеводороды, atmospheric aerosol, composition, hydrocarbons
Abstract
The concentrations of normal hydrocarbons are studied on the basis of measurements in the surface air layer in different Siberian regions and in the free atmosphere over the Kara Sea water area. The total content of normal hydrocarbons in the aerosol composition is found to change from 244.56 ng/m3 in the surface air layer to 0.08 ng/m3 in the free atmosphere over the Kara Sea. Most organic compounds are from the C15H32-C22H46 range independently of the season; lighter compounds beginning from C9H20 are detected in the mid-seasons (spring and autumn); C18H38 concentration is maximal in autumn; C19H40, in spring and summer, and C20H42, in winter.
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