Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Evaluation of Ventilation Deficiecy in Elementary, Middle, and High Schools using Monte Carlo Simulation

Monte-Carlo 모의실험을 이용한 초·중·고등학교의 환기부족 평가

  • Choe, Youngtae (Department of Occupational Health, Daegu Catholic University) ;
  • Park, Jinhyeon (Department of Occupational Health, Daegu Catholic University) ;
  • Kim, Eunchae (Department of Occupational Health, Daegu Catholic University) ;
  • Ryu, Hyoensu (Department of Occupational Health, Daegu Catholic University) ;
  • Kim, Dong Jun (Department of Occupational Health, Daegu Catholic University) ;
  • Min, Kihong (Department of Occupational Health, Daegu Catholic University) ;
  • Jung, Dayoung (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)
  • 최영태 (대구가톨릭대학교 산업보건학과) ;
  • 박진현 (대구가톨릭대학교 산업보건학과) ;
  • 김은채 (대구가톨릭대학교 산업보건학과) ;
  • 류현수 (대구가톨릭대학교 산업보건학과) ;
  • 김동준 (대구가톨릭대학교 산업보건학과) ;
  • 민기홍 (대구가톨릭대학교 산업보건학과) ;
  • 정다영 (대구가톨릭대학교 산업보건학과) ;
  • 우병렬 (대구가톨릭대학교 산업보건학과) ;
  • 조만수 (대구가톨릭대학교 산업보건학과) ;
  • 양원호 (대구가톨릭대학교 산업보건학과)
  • Received : 2020.09.17
  • Accepted : 2020.10.16
  • Published : 2020.12.31
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Abstract

Objectives: Indoor air quality has become more important aspeople spend most of their times indoors. Since students spend most of their times at home or at school, they are more likely to be exposed to indoor air pollutants. Ventilation in school classrooms can affect health and learning performance. In this study, ventilation deficiency was evaluated in school classrooms using Monte Carlo simulation. Methods: This study used sensor-based monitoring for six months to measure carbon dioxide (CO2) concentrations in classrooms in elementary, middle, and high schools. The volume of the classroom and the number of students were investigated, and the students' body surface area was used to calculate the CO2 emission rate. The distribution of ventilation rates was estimated by measured CO2 concentration and a mass-balance model using Monte Carlo simulation. Results: In the elementary, middle, and high schools, the average CO2 concentrations exceeded 1000 ppm, indicating that the ventilation rates were insufficient. The ventilation rates were deficient from July to August and in December, but showed relatively high ventilation rates in October. Forty-three percent of elementary schools, 56% of middle schools, and 62% of high schools showed insufficient ventilation rates. Conclusions: The ventilation rates calculated in elementary, middle and high schools were found to be quite insufficient. Therefore, proper management is needed to overcome the lack of ventilation and improve air quality.

Keywords

Acknowledgement

본 연구는 환경부의 재원으로 한국환경산업기술원의 생활공감환경보건기술사업의 지원을 받아 수행되었습니다(과제번호: 2018001350001).

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