전라북도 초미세먼지 고농도 발생 특성 연구: 익산시를 중심으로 (A Study on the Characteristics of PM2.5 and Estimation of Source Identification in Jeollabuk-do: Focused on Iksan City)

서지정보

· 발행기관 : 한국대기환경학회
· 수록지 정보 : 한국대기환경학회지 / 39권 / 6호 / 985 ~ 1006페이지
· 저자명 : 남두천, 유재연, 류재웅, 김현호, 박지영, 강현진, 김효윤, 강경식, 문다희, 최정화, 김호주

초록

The purpose of this study is to estimate the factors affecting high concentrations of PM2.5 in Jeollabuk-do using PM2.5 weight and composition data collected in Iksan from July 2021 to June 2022. The air masses to Jeollabuk-do were classified into 7 clusters using the HYSPLIT model, and the clusters affected by high concentrations were C1 (atmospheric stagnation), C4 (eastern China), and C7 (northeastern China). In C1, the starting point of the air current is near the Korean Peninsula, and high concentrations occur due to the accumulation of pollutants caused by slow wind speeds. C4 is an air current introduced from the Shandong Peninsula in China, and the high concentration effect persists except during the summer. C7 is an air current originating from the vicinity of Manchuria, and the high-concentration effect is concentrated in winter. Nitrate and ammonia, among the components constituting PM2.5, contribute significantly to high PM2.5 concentrations. By utilizing the EPA-PMF method to estimate pollution sources within high concentration clusters, the contribution of secondary sulfate, secondary nitrate, and mobile sources was found to be more than 70% in all clusters. These results suggest that management of primary gaseous pollutants, including ammonia, is important to control high concentrations of PM2.5 in Jeollabuk-do considering the regional characteristics.

영어초록

The purpose of this study is to estimate the factors affecting high concentrations of PM2.5 in Jeollabuk-do using PM2.5 weight and composition data collected in Iksan from July 2021 to June 2022. The air masses to Jeollabuk-do were classified into 7 clusters using the HYSPLIT model, and the clusters affected by high concentrations were C1 (atmospheric stagnation), C4 (eastern China), and C7 (northeastern China). In C1, the starting point of the air current is near the Korean Peninsula, and high concentrations occur due to the accumulation of pollutants caused by slow wind speeds. C4 is an air current introduced from the Shandong Peninsula in China, and the high concentration effect persists except during the summer. C7 is an air current originating from the vicinity of Manchuria, and the high-concentration effect is concentrated in winter. Nitrate and ammonia, among the components constituting PM2.5, contribute significantly to high PM2.5 concentrations. By utilizing the EPA-PMF method to estimate pollution sources within high concentration clusters, the contribution of secondary sulfate, secondary nitrate, and mobile sources was found to be more than 70% in all clusters. These results suggest that management of primary gaseous pollutants, including ammonia, is important to control high concentrations of PM2.5 in Jeollabuk-do considering the regional characteristics.

참고자료

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