Journal of odor and indoor environment (실내환경 및 냄새 학회지)

Korean Society for Indoor Environment (한국실내환경학회)
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Occurrence and distribution of indoor volatile organic compounds in residential spaces by sampling methods

시료채취 방식에 따른 주거 공간 내 휘발성유기화합물 발생 특성 평가

  • Lee, Suyeon (Department of Environmental Engineering, Seoul National University of Science and Technology) ;
  • Kim, Daekeun (Department of Environmental Engineering, Seoul National University of Science and Technology)
  • 이수연 (서울과학기술대학교 환경공학과) ;
  • 김대근 (서울과학기술대학교 환경공학과)
  • Received : 2018.11.14
  • Accepted : 2018.12.23
  • Published : 2018.12.31
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Abstract

Indoor Volatile organic compounds (VOCs) are classified as known or possible toxicants and odorants. This study characterized VOC levels in 11 homes in an area in the capital of Seoul by using two different methods of VOCs sampling, which are the active sampling using a thermal sorption tube and the passive sampling using a diffusion sampler. When using the active sampling method, the total target VOC concentration ranged from 41.7 to $420.7{\mu}g/m^3$ (mean $230.4{\mu}g/m^3$ ; median $221.8{\mu}g/m^3$) during winter and 21.3 to $1,431.9{\mu}g/m^3$ (mean $340.1{\mu}g/m^3$; median $175.4{\mu}g/m^3$) during summer. When using the passive method, 29.6 to $257.5{\mu}g/m^3$ (mean $81.8{\mu}g/m^3$; median $49.4{\mu}g/m^3$) during winter and 1.2 to $5,131.1{\mu}g/m^3$ (mean $1,758.8{\mu}g/m^3$; median $1,375.1{\mu}g/m^3$) during summer. Forty-nine VOCs were quantified and toluene showed the highest concentration regardless of the season and the sampling method studied. The distribution of VOCs was relatively varied by using the active method. However, it showed a low correlation with indoor environmental factors such as room temperature, humidity and ventilation time. The correlation between indoor environmental factors and VOCs were relatively high in the passive method. In particular, these characteristics were confirmed by principal component analysis.

Keywords

Acknowledgement

Supported by : 서울과학기술대학교

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