Accession Number:

ADA634267

Title:

Kinetics, Mechanism and Product Yields in the Atmospheric Oxidation of Dimethylsulfide

Descriptive Note:

Corporate Author:

MIAMI UNIV FL ROSENSTIEL SCHOOL OF MARINE AND ATMOSPHERIC SCIENCE

Personal Author(s):

Report Date:

1997-09-30

Pagination or Media Count:

5.0

Abstract:

LONG-TERM GOALS. Dimethylsulfide DMS, CH3SCH3 produced by phytoplankton emission is thought to be the major source of the sulfate and methanesulfonate aerosol found in the marine boundary layer. An understanding of the mechanism of formation of these aerosols is critical to understanding the factors which control visibility in the marine boundary layer. The primary objective of this research effort is the determination of the detailed mechanism of, and final products yields from, the OH initiated gas phase oxidation of dimethylsulfide DMS. OBJECTIVES. Our objectives include the determination of the elementary rates for adduct formation, decomposition and reaction. Direct confirmation of production, and quantitative product yields of potential reaction products such sulfur dioxide SO2 and dimethyl sulfoxide DMSO CH32SO. Determination of the homogeneous and heterogeneous removal rates of the stable primary products of DMS oxidation.

Subject Categories:

  • Atmospheric Physics
  • Biology
  • Physical and Dynamic Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE