Estimation of the effectiveness of the aerosol cycle of atmospheric ozone
In order to obtain a quantitative assessment of the contribution of the aerosol effect to the atmospheric ozone balance the authors re-examine the kinetic equation for the heterogeneous process, and its parameters. This equation is valid for a chemically homogeneous aerosol surface, but the kinetics of decomposition of molecules of gaseous impurities on the particles are described more adequately by another expression. The decomposition coefficient was determined from the kinetics of ozone decomposition on a number of oxides (Al/sub 2/O/sub 3/, SiO/sub 2/, ZnO, MgO, TiO/sub 2/), which comprise up to 15% of aerosol substances in the atmosphere. Of all the oxides studied Al/sub 2/O/sub 3/ has the highest activity. In addition to the loss of ozone in gas-phase photochemical reactions, the experimental results took into account, quantitatively, the contribution of ozone decomposition in the aerosol cycle.
- OSTI ID:
- 7148900
- Journal Information:
- J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 58:4,PT.2; ISSN JAPUA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ADSORPTION
AEROSOLS
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COLLOIDS
DECOMPOSITION
DISPERSIONS
EARTH ATMOSPHERE
KINETICS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
OZONE
PHOTOCHEMICAL REACTIONS
QUANTITATIVE CHEMICAL ANALYSIS
REACTION KINETICS
SILICON COMPOUNDS
SILICON OXIDES
SOLS
SORPTION
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
YIELDS
ZINC COMPOUNDS
ZINC OXIDES