Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Evaluation Method for Improvement of Indoor Air Quality Using Mass Balance

물질수지를 이용한 실내공기질 개선정도 평가

  • Kim, Young-Hee (Department of Occupational Wealth, Catholic University of Daegu) ;
  • Kim, Moon-Hyeon (Department of Environmental Engineering, Daegu University) ;
  • Yang, Won-Ho (Department of Occupational Wealth, Catholic University of Daegu)
  • 김영희 (대구가톨릭대학교 산업보건학과) ;
  • 김문현 (대구대학교 환경공학과) ;
  • 양원호 (대구가톨릭대학교 산업보건학과)
  • Published : 2006.10.31
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Abstract

Despite the wide distribution of air pollutants, the concentrations of indoor air pollutants may be the dominant risk factor in personal exposure due to the fact that most people spend an average of 80% of their time in enclosed buildings. Researches for improvement of indoor air quality have been developed such as installation of air cleaning device, ventilation system, titanium dioxide$(TiO_2)$ coating and so on. However, it is difficult to evaluate the magnitude of improvement of indoor air quality in field study because indoor air quality can be affected by source generation, outdoor air level, ventilation, decay by reaction, temperature, humidity, mixing condition and so on. In this study, evaluation of reduction of formaldehyde and nitrogen dioxide emission rate in indoor environments by $TiO_2$ coating material was carried out using mass balance model in indoor environment. we proposed the evaluation method of magnitude of improvement in indoor air quality, considering outdoor level and ventilation. Since simple indoor concentration measurements could not properly evaluate the indoor air quality, outdoor level and ventilation should be considered when evaluate the indoor net quality.

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References

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