The study investigates weekday/weekend characteristics of PM10 and PM2.5 concentrations and meteorological elements in Busan. The PM10 concentration is highest on Wednesday and Thursday, and lowest on Sunday. On the other hand, the PM2.5 concentration is highest on Wednesday and lowest on Sunday. The location where concentrations of weekdays and weekend differ the most is Hwakjang-dong, the industrial area, and where they differ the least is Gijang-up and Joa-dong, the residential area. Fine particle concentration in the industrial area was consistent at dawn and in the morning, but varied in the afternoon and at night. The visibility of Sunday was 0.49 km higher than that of weekdays, and the solar radiation of Sunday was 0.11 MJ/㎡ higher than that of weekdays. These results indicate that the concentration of fine particles had influence on the change of visibility and solar radiation.

Abstract
 1. 서 론
 2. 자료 및 방법
 3. 결과 및 고찰
  3.1. PM10과 PM2.5 농도의 일반적 특성
  3.2. PM10과 PM2.5 농도의 주중/주말 특성
  3.3. 기상요소의 주중/주말 특성
 4. 요약 및 결론
 참 고 문 헌

• 전병일(신라대학교 환경공학과) | Byung-Il Jeon (Department of Environmental Engineering, Silla University) Corresponding author
• 황용식(부산대학교 환경보건연구소) | Yong-Sik Hwang (Institute for Environmental Health, Pusan National University)