미생물 실험실에서의 부유 곰팡이 농도의 계절별 변이와 환경영향
Seasonal and Environmental Influences on Culturable Airborne Fungi Levels in Microbiology Laboratories
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초록
Objectives: This study aimed to assess temporal changes in the level of culturable airborne fungi (CAF) in threemicrobiology laboratories and determine the environmental factors associated with CAF level. Methods: CAF levels were determined once per month from March 2011 to February 2012 in threemicrobiology laboratories. An Andersen one-stage sampler was used for five minutes, three times per day tocollect the CAF. Arithmetic means of CAF concentrations and standard deviation (SD) were calculated. AMann-Whitney test was applied to compare the differences between environmental factors such as divided roomby structure of laboratory, use of humidifier, and use of air-conditioner. Correlation analysis was also applied toidentify the association between CAF concentrations and environmental factors. Results: CAF levels demonstrated an increasing tendency in summer, and the three laboratories showedconsistent seasonal patterns. Temperature and relative humidity (RH) were associated with CAF levels. Whenthe humidifier was off, CAF concentrations were significantly higher in study rooms than in study rooms inwhich the humidifier was on. Conclusion: CAF levels in indoor microbiology laboratories varied greatly depending upon the temperature andRH and whether a humidifier was used.
Abstract
Objectives: This study aimed to assess temporal changes in the level of culturable airborne fungi (CAF) in threemicrobiology laboratories and determine the environmental factors associated with CAF level. Methods: CAF levels were determined once per month from March 2011 to February 2012 in threemicrobiology laboratories. An Andersen one-stage sampler was used for five minutes, three times per day tocollect the CAF. Arithmetic means of CAF concentrations and standard deviation (SD) were calculated. AMann-Whitney test was applied to compare the differences between environmental factors such as divided roomby structure of laboratory, use of humidifier, and use of air-conditioner. Correlation analysis was also applied toidentify the association between CAF concentrations and environmental factors. Results: CAF levels demonstrated an increasing tendency in summer, and the three laboratories showedconsistent seasonal patterns. Temperature and relative humidity (RH) were associated with CAF levels. Whenthe humidifier was off, CAF concentrations were significantly higher in study rooms than in study rooms inwhich the humidifier was on. Conclusion: CAF levels in indoor microbiology laboratories varied greatly depending upon the temperature andRH and whether a humidifier was used.
참고문헌 (32)
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