Asthmatics are more susceptible to fine particulate matters (PM2.5), compared to the general population. It has been reported that indoor PM2.5 is mainly generated by combustion of fossil fuels, meat or fish In particular, asthmatics are known to be more susceptible to indoor PM2.5 because 65 ∼ 95% of child or adult asthmatics stay inside the house. Thus, understanding the association between indoor activity patterns and variations in indoor PM2.5 levels is important. The purpose of this study is to determine the distribution of hourly indoor PM2.5 concentrations in asthmatics’ homes, and to evaluate its association with pan-frying cooking activity patterns, the most common PM2.5 emission related activity. From November 2017 to February 2018, real-time PM2.5 concentrations were measured in the living room of each asthmatic’s house (n = 35) for three weeks at 1 minute intervals. At the same time, self-reported daily activity patterns, hourly proportion (%) of cooking activities, were also recorded every hour over three weeks for each patient. In this study, we provided quantitative evidence that the distribution patterns of indoor hourly PM2.5 concentrations were associated with indoor cooking activities, especially in the homes of adult asthmatics. In addition, we observed that PM2.5 emitted by pan-frying could maintain even over up to 2 hour lagtime.

Abstract
1. 서 론
2. 재료 및 방법
    2.1. 측정 장소 및 기간
    2.2. 측정 방법
    2.3. 자료 분석
3. 결과
    3.1. 연구대상자의 인구학적 특성
    3.2. 실내 환경 요인 농도와 시간활동패턴 비율 분포 수준
    3.3. 주중, 주말 굽기 활동 분율과 PM2.5 농도 분포 비교
    3.4. 굽기조리 활동 유무에 따른 실내 온도, 습도, PM2.5및 CO2 농도 분포 비교
    3.5. 각 시간별 조리 활동 유무에 따른 PM2.5 농도 분포
    3.6. 시간별 PM2.5 농도 변화와 굽기조리 활동 유무의연관성
4. 고 찰
5. 결 론
REFERENCES

• 박수정(순천향대학교 환경보건학과) | Su Jung Park (Department of Environmental of Health Sciences, Soonchunhyang University)
• 박춘식(순천향대 부천병원 호흡기 알레르기내과) | Choon sik Park (Department of Internal Medicine, Soonchunhyang Bucheon Hospital)
• 임대현(인하대학교 소아청소년과) | Dae hyun Lim (Department of Pediatrics and Environmental Health Center for Allergic Diseases, Inha University hospital)
• 이상운(순천향대학교 환경보건학과) | Sang woon Lee (Department of Environmental of Health Sciences, Soonchunhyang University)
• 장소영(순천향대학교 환경보건학과) | So young Jang (Department of Environmental of Health Sciences, Soonchunhyang University)
• 유솔(순천향대학교 환경보건학과) | Sol Yu (Department of Environmental of Health Sciences, Soonchunhyang University)
• 김성렬(순천향대학교 환경보건학과) | Sung Roul Kim (Department of Environmental of Health Sciences, Soonchunhyang University)