During periods where a fine dust watch was announced, we measured particulate matter by the light scattering method and the gravimetric method in accordance with the application of an air cleaner in 3 homes. The first investigation showed a lower indoor particulate matter 2.5 (PM2.5) concentration distribution than normal when there was a fine dust warning. Also, it was found that the result of the second research was similar to the first research, and was the effect of an air cleaner. The result of a comparison of black carbon (BC) concentration in accordance with an air cleaner at one room showed a lower concentration distribution than normal, as in the first and the second research when there was a fine dust warning. PM2.5 risk reduction effect showed 9.09E-5 (light scattering method) ~ 9.37E-5 (Gravimetric method) and 1.71E-4 (Light scattering method) ~ 1.76E-4 (Gravimetric method). Therefore, it was found that when there was a fine dust watch without ventilation, if air cleaner with the proper capacity is used and the influx of outside air reduced, the harmful effects of the fine dust can be lessened.

1. 서 론
 2. 연구방법
  2.1 측정대상시설 및 조사 주요 내용
  2.2 측정, 분석 및 정도관리
  2.3 위해도 저감 및 비용-편익 분석
 3. 결과 및 고찰
  3.1 일반가정집의 공기청정기 설치 전후의 미세먼지류농도 변화 평가
  3.2 위해 저감 평가 및 비용-편익 분석
 4. 결 론
 References

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• 박찬정(코웨이(주) 환경기술연구소) | Chan-Jung Park
• 김종철(코웨이(주) 환경기술연구소) | Jong-Cheol Kim
• 이용진(연세대학교 의과대학 환경공해연구소) | Yong-Jin Lee
• 이철민(연세대학교 의과대학 환경공해연구소) | Cheol-Min Lee
• 곽윤경((사)한국라돈협회) | Yoon-Kyung Gwak
• 손혜림(연세대학교 의과대학 환경공해연구소) | Hea-Lim Sohn
• 이시은(연세대학교 의과대학 환경공해연구소) | Si-Eun Lee
• 임영욱(연세대학교 의과대학 환경공해연구소) | Young-Wook Lim Corresponding author