ISSN : 1738-4125(Print)
ISSN : 2287-7509(Online)
ISSN : 2287-7509(Online)
대학도서관 내 실내공기질 조사 및 입자상물질의 특성에 관한 연구
Investigation of Indoor Air Quality and the Characteristics of Particulate Matter Distribution in a University Library
Abstract
Recently Korean government introduced and strengthened the environmental polices to manage andenhance indoor air quality as a major assignment. As a result,“Indoor Air Quality Management Act”hasbeen activated since May 2004. However, among many multi-usage facilities, the school environment hasbeen excluded from such regulations. Thus, the purpose of this study is to survey indoor aerosol and CO2concentrations in a university library which is one of major school facilities. Concentrations of PM10, PM2.5,and PM1 were intensively measured every 5 minute interval by means of a dust monitor with light-scatteringprinciple. The mini-volume air samplers were used further to analyze inorganic elemental compositions ofPM10 and to inter-compare with the dust monitor. Carbon dioxide was simultaneously monitored by amulti-gas monitor equipped with a non-dispersive infrared system.PM10 concentrations did not exceed the indoor air quality standard(150㎍/㎥) for all the sampling places.However, quick and steep increases of aerosol concentration were observed during the Asian Dust stormperiod. In addition, the concentration of PM10(74.1㎍/㎥) in the main university office was the highest amongthe entire sampling places. Although there was no specific pollution source in the library, the levels ofaerosol and CO2 increased quickly due to various outdoor sources and human activities. The average CO2concentration measured in three reading rooms, where ventilation was not fully operated, exceeded theindoor air quality standard of 1,000 ppm. Based on these case studies, effective management and reductionplans for indoor aerosol and CO2 were suggested for the large scale public buildings including universitylibraries.
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