Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Measurement of PM2.5 Concentrations and Comparison of Affecting Factors in Residential Houses in Summer and Autumn

여름과 가을의 주택실내 초미세먼지(PM2.5) 농도 측정 및 영향요인 비교

  • Dongjun Kim (Department of Health and Safety, Daegu Catholic University) ;
  • Gihong Min (Department of Health and Safety, Daegu Catholic University) ;
  • Jihun Shin (Department of Health and Safety, Daegu Catholic University) ;
  • Youngtae Choe (Department of Health and Safety, Daegu Catholic University) ;
  • Kilyoong Choi (Department of Environmental Energy Engineering, Anyang University) ;
  • Sang Hyo Sim (Department of Health Administration, Hanyang Women's University) ;
  • Wonho Yang (Department of Health and Safety, Daegu Catholic University)
  • 김동준 (대구가톨릭대학교 보건안전학과) ;
  • 민기홍 (대구가톨릭대학교 보건안전학과) ;
  • 신지훈 (대구가톨릭대학교 보건안전학과) ;
  • 최영태 (대구가톨릭대학교 보건안전학과) ;
  • 최길용 (안양대학교 환경에너지공학과) ;
  • 심상효 (한양여자대학교 보건행정학과) ;
  • 양원호 (대구가톨릭대학교 보건안전학과)
  • Received : 2024.01.04
  • Accepted : 2024.01.25
  • Published : 2024.02.28
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Abstract

Background: Indoor PM2.5 concentrations in residential houses can be affected by various factors depending on the season. This is because not only do the climate characteristics depend on the season, but the activity patterns of occupants are also different. Objectives: The purpose of this study is to compare factors affecting indoor PM2.5 concentrations in apartments and detached houses in Daegu according to seasonal changes. Methods: This study included 20 households in Daegu, South Korea. The study was conducted during the summer (from July 10 to August 10, 2023) and the autumn (from September 11 to October 9, 2023). A sensor-based instrument for PM2.5 levels was installed in the living room of each residence, and measurements were taken continuously for 24 hours at intervals of one minute during the measurement period. Based on the air quality monitoring system data in Daegu, outdoor PM2.5 concentrations were estimated using ordinary kriging (OK) in Python. In addition, the indoor activities of the occupants were investigated using a time-activity pattern diary. The affecting factors of indoor PM2.5 concentration were analyzed using multiple regression analysis. Results: Indoor and outdoor PM2.5 concentrations of the residences during summer were 15.27±11.09 ㎍/m3 and 11.52±7.56 ㎍/m3, respectively. Indoor and outdoor PM2.5 concentrations during autumn were 13.82±9.61 ㎍/m3 and 9.57±5.50 ㎍/m3, respectively. The PM2.5 concentrations were higher in summer compared to autumn both indoors and outdoors. The primary factor affecting indoor PM2.5 concentration in summer was occupant activity. On the other hand, during the autumn season, the primary affecting factor was outdoor PM2.5 concentration. Conclusions: Indoor PM2.5 concentration in residential houses is affected by occupant activity such as the inflow of outdoor PM2.5 concentration, cooking, and cleaning, as found in previous studies. However, it was revealed that there were differences depending on the season.

Keywords

Acknowledgement

본 연구는 환경부의 재원으로 한국환경산업기술원의 환경성 질환 예방관리 핵심 기술개발사업의 지원을 받아 수행되었으며(과제번호: 2021003320001), 환경부, 환경보건학회 환경보건센터 "2023년 환경보건 전문인력 양성사업 위탁사업(환경보건학회)"에서 지원받아 수행된 결과이며 이에 감사드립니다.

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