Vol. 16, issue 05-06, article # 8

Abstract:

Primary gas-phase chemical reactions initiated by the solar radiation in the troposphere are briefly reviewed. Besides, the paper reviews investigations of photo-induced heterogeneous chemical processes occurring on the surface of the main phase components of tropospheric solid aerosols. It is proposed to divide these processes into groups that differ by the absorption of radiation quanta. Based on this division it is possible to separate and define such experimentally observed processes as photoadsorption, photocatalytic reactions, interaction of gas-phase molecules with the solid-body surface under exposure to radiation quanta, and surface photochemical reactions.