전라북도 초미세먼지 고농도 발생 특성 연구: 익산시를 중심으로

• Published in: 한국대기환경학회지(국문) Vol. 39; no. 6; pp. 985 - 1006
• Main Authors: 남두천(Tu-Cheon Nam), 유재연(Jae-Youn Ryoo), 류재웅(Jae-Woong Ryou), 김현호(Hyun-Ho Kim), 박지영(Ji-Yeong Park), 강현진(Hyeon-Jin Kang), 김효윤(Hyo-Yun Kim), 강경식(Kyeong-Sik Kang), 문다희(Da-Hui Mun), 최정화(Jeong-hwa Choi), 김호주(Ho-Ju Kim)
• Format: Journal Article
• Language: Korean
• Published: 한국대기환경학회 01.12.2023
• Subjects: 대기과학; CWT; 2.5< EPA-PMF; PM< SUB> Jeollabuk-do; HYSPLIT
• ISSN: 1598-7132; 2383-5346
• DOI: 10.5572/KOSAE.2023.39.6.985

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. KCI Citation Count: 0