Improvement of the air quality in student health centers with chlorine dioxide

CNU IR > College of Sustainable Environment and Recreation > Dept. of Environmental Resources Management > Periodical Articles > Item 310902800/25342

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题名:	Improvement of the air quality in student health centers with chlorine dioxide
作者:	.Preview Ching-Shan Hsu Da-Ji Huang Ming-Chun Lu
贡献者:	環境資源管理系
关键词:	disinfection bioaerosols chlorine dioxide student health center
日期:	2010-04
上传时间:	2012-05-31 14:49:37 (UTC+8)
摘要:	This study aims to monitor bioaerosol levels of a local campus of a student health center in Taiwan and then to perform disinfection by applying chlorine dioxide. First, air samples were taken and evaluated in the six areas of the center. The average background bioaerosol levels were 714 � 1706 CFU/m3 for bacterium and 802 � 633 CFU/m3 for fungi. Then, chlorine dioxide was applied through three different procedures: single, multiple and regular disinfections. The results indicated that both multiple and regular disinfections can achieve efficiency levels higher than 59.0%. The regression analysis on bioaerosol levels showed that the number of people present correlating to the number of persons entering the room per door-opening, had a correlation of p < 0.05. Utilizing this analysis result, an empirical model was developed to predict indoor bioaerosol concentrations. It can be inferred that for indoor human activity of health centers, regular disinfection is a very effective process.
關聯:	International Journal of Environmental Health Research 20(2)：p.115-127
显示于类别:	[Dept. of Environmental Resources Management] Periodical Articles

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