In this study, eight episode days of high-concentration PM10 occurrences in the Gimhae region between 2006 and 2011 were analyzed. Most of them appeared in winter and the highest concentration was observed around 12 LST. Furthermore, the wind direction, wind velocity, and temperature elements were compared with observed values to verify the WRF numerical simulation results used in this study, and they simulated well in accordance with the trend of the observed values. The wind was generally weak in the high-concentration episode days that were chosen through surface weather chart and the numerical simulation results for wind field, and the air pollutants were congested due to the effects of the resulting local winds, thereby causing a high concentration of air pollutants. Furthermore, the HYSPLIT model was performed with the WRF numerical simulation results as input data. As a result, they originated from China and flowed into Gimhae in all eight days, and the lowest concentration appeared on the days when recirculation occurred.

Abstract
 1. 서 론
 2. 자료 및 방법
  2.1. 대상지역
  2.2. 역궤적 모델
  2.3. WRF 수치모델
 3. 결과 및 고찰
  3.1. 고농도 PM10 사례일 선정 및 특성 분석
  3.2. WRF 수치모의 결과 검증
  3.3. 고농도 사례일의 기상 분석
  3.4. WRF/HYSPLIT 모델을 이용한 역궤적 분석
 4. 결 론
 참 고 문 헌

• 정우식(인제대학교 대기환경정보공학과/대기환경정보연구센터) | Woo-Sik Jung (Department of Atmospheric Environment Information Engineering, Atmospheric Environment Information Research Center, Inje University)
• 이보람(케이웨더(주)) | Bo-Ram Lee (KWeather Co.,Ltd) Corresponding author
• 박종길(인제대학교 환경공학부/대기환경정보연구센터) | Jong-Kil Park (Department of Environmental Enhineering, Atmospheric Environmental Information Research Center, Inje University)
• 도우곤(부산광역시 보건환경연구원 대기보전과) | Woo-Gon Do (Busan Metropolitan City of Institute of Health and Environment)