PM10 concentration is related to the meteorological variables including to local and synoptic meteorology. In this study the PM10 concentrations of Busan in 2007~2011 were analyzed and the days of yellow sand or rainfall which is more than 5 mm were excluded. The sections of PM10 concentration were divided according to 10-quantiles, quartiles and 90-quantiles. The 90-quantiles of daily PM10 concentration were selected as high concentration dates. In the high concentration dates the daily mean averaged cloudness, mean daily surface wind speed, daily mean surface pressure and PBL height were low and diurnal variation of surface pressure and daily maximum surface temperature were high. When the high PM10 dates occurred, the west and south wind blew on the ground and the west wind blew strongly on the 850 hPa. So it seemed that long range transboundary air pollutants made effects on the high concentration dates. The cluster analysis using Hysplit model which is the backward trajectory was made on the high concentration dates. As a result, 3 clusters were extracted and on the short range transboundary cluster the daily mean relative humidity and cloudness were high and PBL height was low.

Abstract
 1. 서 론
 2. 재료 및 방법
 3. 결과 및 고찰
  3.1. 부산지역 PM10 농도 경향
  3.2. 미세먼지 농도 분포별 기상요인 비교 분석
  3.3. 고농도 미세먼지 발생일 군집분석
 4. 결 론
 참 고 문 헌

• 김민경(부산광역시 보건환경연구원) | Min-Kyoung Kim (Busan Metropolitan City of Institute of Health and Environment)
• 도우곤(부산광역시 보건환경연구원) | Woo-Gon Do (Busan Metropolitan City of Institute of Health and Environment)
• 조정구(부산광역시 보건환경연구원) | Jung-Gu Cho (Busan Metropolitan City of Institute of Health and Environment)
• 정우식(인제대학교 대기환경정보공학과/대기환경정보연구센터) | Woo-Sik Jung (Department of Atmospheric Environment Information Engineering/Atmospheric Environment Information Research Center, Inje University) Corresponding author
• 이화운(부산대학교 대기환경과학과) | Hwa Woon Lee (Department of Atmospheric Environmental Sciences, Pusan University)
• 이귀옥(디엠제이시스템 대기환경연구소) | Kwi-Ok Lee (Atmospheric Environmental Research Center)