CHARACTERISTICS OF SEOUL SMOG

Abstract

Characteristics of visual air quality in Seoul have been investigated from March 1993 to February 1994. Optical properties, meteorological parameters, and particle characteristics were measured. The data indicate that light scattering by particles is the dominant process in light extinction. Fine particle mass concentration and the fraction of sulfate, nitrate, and ammonium ions in the particles are the major variables which determine the occurrence and characteristics of a smog episode in Seoul.