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http://dx.doi.org/10.7780/kjrs.2020.36.6.3.6

Indoor and Outdoor Levels of Particulate Matter with a Focus on I/O Ratio Observations: Based on Literature Review in Various Environments and Observations at Two Elementary Schools in Busan and Pyeongtaek, South Korea  

Kang, Jiwon (Atmospheric Science Major, Division of Earth Environmental System Science, Pukyong National University)
An, ChanJung (Atmospheric Science Major, Division of Earth Environmental System Science, Pukyong National University)
Choi, Wonsik (Department of Environmental Atmospheric Sciences, Pukyong National University)
Publication Information
Korean Journal of Remote Sensing / v.36, no.6_3, 2020 , pp. 1691-1710 More about this Journal
Abstract
We measured PM2.5 and PM10 (particulate matter less than 2.5 ㎛ and 10 ㎛ in diameter, respectively) simultaneously at 16 locations around an elementary school and classrooms in Busan and Pyeongtaek, South Korea. In this study, we compared the results of this field intensive with those in the literature (144 cases of 30 studies), focusing on I/O (Indoor/Outdoor) ratios. We also reviewed the results of previous studies, categorizing them into related sub-categories for indoor-activities, seasons, building-uses, and the surrounding environment. We conclude that indoor PM10 is affected more by indoor-sources (e.g., physical activities) than PM2.5 in the absence of combustion sources like smoking and cooking. Additionally, PM10 and PM2.5 likely have different indoor-outdoor infiltration efficiencies. Conclusively, PM10 in classrooms can be more sensitively affected by both indoor activities and ambient concentrations, and mechanical ventilation can be more efficient in reducing PM concentrations than natural ventilation.
Keywords
Indoor air quality; $PM_{2.5}$; $PM_{10}$; I/O ratio; Ventilation; School;
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Times Cited By KSCI : 6  (Citation Analysis)
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