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A Study on the Relationship between the Indoor and Outdoor Particulate Matter Concentration by Infiltration in the Winter
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 Title & Authors
A Study on the Relationship between the Indoor and Outdoor Particulate Matter Concentration by Infiltration in the Winter
Back, Ji-Min; Yee, Su-Whan; Lee, Byung-Hee; Kang, Dong-Hwa; Yeo, Myoung-Souk; Kim, Kwang-Woo;
Penetration of outdoor particulate matter(PM) is caused by the air flow from outside through infiltration, natural ventilation and mechanical ventilation. Therefore, recent deterioration of air pollution can increase the possibility of penetration of outdoor PM indoors. In this study, indoor and outdoor size-resolved particle concentrations and the ratio under infiltration condition are analyzed to investigate the impact of particle size on the penetration and formation of indoor PM concentration. The particle number concentrations for PM0.3, 0.5, 1, 3, 5, were measured using optical particle counter(OPC) and ratio of indoor-to-outdoor(I/O) particle concentrations were calculated. Results suggested that outdoor PM could penetrate through outdoor airflow by infiltration and contribute to increase indoor PM concentrations. Calculated I/O ratio depended strongly on particle size. I/O ratio of small size particles (<) were around 1, and as the particle size increases, the I/O ratio tend to be decreased.
Particulate matter;Particle size;I/O ratio;Infiltration;
 Cited by
주거건물의 실내외 미세먼지 측정에 의한 실외 미세먼지의 실내 영향도 평가 기초연구,강동화;최동희;

한국건축친환경설비학회 논문집, 2015. vol.9. 6, pp.462-469
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