Chemical Composition of Superficial Layers of Particles of Atmospheric Aerosols (Novosibirsk and Irkutsk Regions)
V. P. IVANOV1, S. N. TRUKHAN1, D. I. KOCHUBEY1, V. V. KRIVENTSOV1, K. P. KOUTSENOGII2, N. S. BUFETOV2, O. G. NETSVETAEVA3, L. V. GOLOBOKOVA3 and T. V. KHODZHER3
1Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia), E-mail: vpivanov@catalysis.nsk.su
2Institute of Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences,
Ul. Institutskaya 3, Novosibirsk 630090 (Russia)
3Limnological Institute, Siberian Branch of the Russian Academy of Sciences,
Ul. Ulan-Batorskaya 3, Irkutsk 664033 (Russia)
Pages: 51-63
Abstract
An elemental analysis of superficial layers of the particles of atmospheric aerosols (AA) in Novosibirsk Region and the Baikal region has been performed with the technique of Secondary Ion Mass Spectrometry. It has been found that superficial layers (one-two) of monolayer of all aerosols are covered by adsorbed hydrocarbons, nitrogen-bearing compounds, by other more complex compounds, and water. It has been demonstrated that an erosion of aluminosilicate soils with admixtures of iron, titanium, alkaline and alkali-earth metals provides the basic source for AA formation. Action of water results in Na and Ca "washing out" from superficial layers and formation of hydroaluminosilicates. By means of X-Ray Absorption Near Edge Structure technique, the phase and charge state of iron in AA samples taken in Irkutsk have been determined. With the aim of analysing the composition of gases adsorbed on the surface, an attempt has been made to apply a technique of temperature-programmed desorption.
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