Disinfection efficiency of hospital infectious disease wards with chlorine dioxide and hypochlorous acid

doi:10.1007/s10453-020-09670-8

CNU IR > College of Sustainable Environment and Recreation > Dept. of Environmental Resources Management > Periodical Articles > Item 310902800/34459

Please use this identifier to cite or link to this item: https://ir.cnu.edu.tw/handle/310902800/34459

Title:	Disinfection efficiency of hospital infectious disease wards with chlorine dioxide and hypochlorous acid
Authors:	Lu, Ming-Chun Chen, Po-Lin Huang, Da-Ji Liang, Chih-Kuo Hsu, Ching-Shan Liu, Wei-Ting
Contributors:	Chia Nan Univ Pharm & Sci, Dept Environm Resources Management Natl Cheng Kung Univ, Ctr Infect Control, Cheng Kung Univ Hosp, Coll Med Natl Cheng Kung Univ, Dept Internal Med, Cheng Kung Univ Hosp, Coll Med Natl Taitung Jr Coll, Dept Elect Engn
Keywords:	Disinfectant Chlorine dioxide Weak acid hypochlorous water Ward Bioaerosols
Date:	2021
Issue Date:	2023-11-11 11:54:01 (UTC+8)
Publisher:	SPRINGER
Abstract:	The disinfection efficiencies of two chemical disinfectants, chlorine dioxide and weak acid hypochlorous water (WAHW), were examined in the soiled room and dishwashing room of a hospital infectious disease ward in Taiwan. The investigations were conducted in two seasons, namely winter and summer, in order to examine the correlation between the bioaerosol concentration and the environmental factors. In addition, a single-daily disinfection mode (SM) and a twice-daily disinfection mode (TM) were applied in this study. The results showed that the bacteria and fungi colony counts were strongly correlated with the temperature. Both disinfectants reduced the bacteria and fungi concentrations in the considered rooms. However, of the two disinfectants, the ClO2 showed a stronger disinfection effect than the WAHW. It means that when using ClO2 as the disinfectant, the disinfection efficiency of the TM treatment mode is significantly better than that of the SM treatment mode. But, when using WAHW as the disinfectant, no significant difference is found between the disinfection efficiencies of the two methods. Overall, the results showed that the application of ClO2 twice daily provided the most effective means of satisfying the Taiwan EPA guidelines for the indoor air quality of hospital medical wards.
Relation:	AEROBIOLOGIA, v.37, n.1, pp.29-38
Appears in Collections:	[Dept. of Environmental Resources Management] Periodical Articles

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