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http://dx.doi.org/10.5668/JEHS.2007.33.2.145

Evaluation of Impactor's Collection Efficiency on Airborne Bacteria by Type of Agar Media and Storage Condition  

Kim, Ki-Youn (Center for Health Related Aerosol Studies, Department of Environmental Health, University of Cincinnati)
Jang, Gyu-Yeob (Department of Preventive Medicine & Public Health, School of Medicine, Ajou University)
Park, Jae-Beom (Department of Preventive Medicine & Public Health, School of Medicine, Ajou University)
Kim, Chi-Nyon (Institute for Occupational Health, College of Medicine, Yonsei University)
Lee, Kyung-Jong (Department of Preventive Medicine & Public Health, School of Medicine, Ajou University)
Publication Information
Journal of Environmental Health Sciences / v.33, no.2, 2007 , pp. 145-149 More about this Journal
Abstract
The range of reduction rates of airborne bacteria concentration at 6 hrs, 12 hrs, 24 hrs and 48 hrs, which means a storage time until input of agar media into incubator after air sampling with an impactor. were 15-20%, 25-40%, 35-50% and 55-70%, respectively, compared to initial concentration. Types of agar media and storage thermal condition did not significantly affect a collection efficiency of impactor in terms of evaluating airborne bacteria level (p>0.05). To better improve the impactor's collection efficiency of airborne bacteria, based on the result of this study, it is recommended that the vicinity of $25^{\circ}C$ should be sustained until input of agar media into incubator after air sampling.
Keywords
impactor; airborne bacteria; collection efficiency; storage condition;
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Times Cited By KSCI : 4  (Citation Analysis)
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