This study investigates the concentration sudden rise in fine particle according to resuspended dust from paved roads after sudden heavy rain in Busan on August 25, 2015. The localized torrential rainfall in Busan area occurred as tropical airmass flow from the south and polar airmass flow from north merged. Orographic effect of Mt. Geumjeong enforced rainfall and it amounted to maximum 80 ㎜/hr at Dongrae and Geumjeong region in Busan. This heavy rain induced flood and landslide in Busan and the nearby areas. The sudden heavy rain moved soil and gravel from mountainous region, which deposited on paved roads and near roadside. These matters on road suspended by an automobile transit, and increased fine particle concentration of air. In addition outdoor fine particle of high concentration flowed in indoor by shoes, cloths and air circulation.

Abstract
 1. 서 론
 2. 자료 및 방법
 3. 결과 및 고찰
  3.1. 2014년 8월 25일 부산 지역 기습 폭우의 개관
  3.2. 도로면 토사의 재비산에 의한 미세먼지 농도 특성
 4. 요약 및 결론
 REFERENCES

• 전병일(신라대학교 환경공학과, Department of Environmental Engineering, Silla University) | Byung-Il Jeon Corresponding author