Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Indoor to Outdoor Ratio of Fine Particulate Matter by Time of the Day in House According to Time-activity Patterns

시간활동양상에 따른 주택의 시간대별 실내·실외 초미세먼지 농도비

  • Park, Jinhyeon (Department of Occupational Health, Daegu Catholic University) ;
  • Kim, Eunchae (Department of Occupational Health, Daegu Catholic University) ;
  • Choe, Youngtae (Department of Occupational Health, Daegu Catholic University) ;
  • Ryu, Hyoensu (Department of Occupational Health, Daegu Catholic University) ;
  • Kim, Sunshin (Department of Occupational Health, Daegu Catholic University) ;
  • Woo, Byung Lyul (Department of Occupational Health, Daegu Catholic University) ;
  • Cho, Mansu (Department of Occupational Health, Daegu Catholic University) ;
  • Yang, Wonho (Department of Occupational Health, Daegu Catholic University)
  • 박진현 (대구가톨릭대학교 산업보건학과) ;
  • 김은채 (대구가톨릭대학교 산업보건학과) ;
  • 최영태 (대구가톨릭대학교 산업보건학과) ;
  • 류현수 (대구가톨릭대학교 산업보건학과) ;
  • 김순신 (대구가톨릭대학교 산업보건학과) ;
  • 우병렬 (대구가톨릭대학교 산업보건학과) ;
  • 조만수 (대구가톨릭대학교 산업보건학과) ;
  • 양원호 (대구가톨릭대학교 산업보건학과)
  • Received : 2020.09.15
  • Accepted : 2020.10.13
  • Published : 2020.10.31
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Abstract

Objective: The purpose of this study was to evaluate the indoor to outdoor ratio (I/O ratio) of time activity patterns affecting PM2.5 concentrations in homes in Korea through a simulation. Methods: The time activity patterns of homemakers were analyzed based on the 'Time-Use Survey' data of the National Statistical Office in 2014. From September 30 to October 2, 2019, the experimenter lived in multifamily housing located in Guro-gu, Seoul. The I/O ratio of PM2.5 concentration was measured by installing sensor-based instruments. Results: The average indoor and outdoor PM2.5 concentrations during the three days were 33.1±48.9 and 45.9±25.3 ㎍/㎥, respectively. The average I/O ratio was 0.75±0.60. The indoor concentration tended to increase when PM2.5 source activity such cooking and cleaning was present and outdoor PM2.5 was supplied through ventilation. Conclusions: This study could be used as basic data for estimating indoor PM2.5 concentrations with personal activity pattern and weather conditions using outdoor concentrations.

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References

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