오염물질기준지수(Pollutant Standards Index)를 이용한 대기질의 평가 -서울특별시 대기오염도에 대하여-

An Assessment of Air Pollution using Pollutant Standards Index (PSI) : $1983{\sim}1984$ in Seoul

In order to assess the general health effect due to air pollution and to determine the critical pollutant which is meant by the worst effect to health among various pollutants in Seoul, air quality measurements at 10 sites during $1983{\sim}1984$ were analyzed using Pollutant Standards Index(PSI) : This index has been ultimately proposed to describe the comprehensive degree of the air pollution by U.S. Environmental Protection Agency(EPA) since 1976. Total average of PSI in Seoul during the two years was 139 that is described in 'unhealthful' The highest PSI appeared in Winter 183 through the 2 years, the lowest in Summer 99, and Spring 129 and Fall 150 respectively, PSI in Deungchon dong and Seongsu dong which are industrial areas were very high in terms of 'very unhealthful', while shinlim dong was shown in low in terms of 'good'. TSP was a priority pollutant in Seoul as the most frequently occuring critical pollutant. Its frequency was 76.4% in Spring, 86.0% in Summer, 78.0% in Fall and 44.2% in Winter during the 2 years. In Winter, $TSP{\times}SO_2$ was an important term as the critical pollutant in Seoul. Oxidant was the most frequently occuring critical pollutant in Kwangwhamoon through the whole seasons. It was recommended that the PSI could be used to assess the air pollution administratively and legally in context with publich health.