Heterogeneous Chemical Reactions and Processes in the Atmosphere Related to Environmental Problems

Abstract

Various particles such as aerosols and soils are present in the environment and can be places for gas-solid heterogeneous chemical reactions, which are different from gas-phase homogeneous chemical reactions. Here, in addition to experimental techniques for studying the heterogeneous chemical reactions, especiall y under photoirradiation, the researches on 1) adsorption and oxidation reaction of sulfur dioxide, 2) adsorption and chemical reactions of nitrogen oxides and 3) chemical reactions of gaseous organics, are reviewed. The role of the heterogeneous chemical reactions in atmospheric environment pollutions is discussed.