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KMID : 1156220200460060757
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Journal of Environmental Health Sciences
2020 Volume.46 No. 6 p.757 ~ p.763
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Concentration of Airborne Fungi in Public Transportation during Operation
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Kim Hong-Gi
Cho Eun-Min
Jeon Bo-Il
Lee Jeong-Hun
Kim Ho-Hyun
Kwon Hyuk-Ku
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Abstract
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Objectives: The objective of this study was to evaluate the concentrations of airborne fungi in public transportation from autumnl 2016 to summer 2017.
Methods: This study measured the concentrations of airborne fungi on six subway lines and intercity buses in Seoul.
Results: The concentration of fungi in the air in public transportation was found to be lower than the standard (500 CFU/㎥) for vulnerable group facilities among public use facities. In summer, the concentration of airborne fungi was relatively higher than in autumn. The concentrations of airborne fungi in subway (252.0 CFU/㎥) and train (45.1 CFU/㎥) were high tendency during non-rush hours in summer, while intercity bus was hightendency during rush hours in summer (111.9 CFU/㎥). The major types of airborne fungi in public transportation were Cladosporium, Penicillium, and Aspergillus.
Conclusions: The harmful airborne fungus were detected though they did not exceed the standard in all public transportation. As a result, further studies on the analysis of the distribution of airborne fungi by ventilation and the characterization of indoor environments are needed to propose effective management of airborne fungi in public transportation.
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KEYWORD
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Airborne fungi, indoor air quality, intercity bus, public transportation, subway
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