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Int J Environ Res Public Health

Title:		The Study of an Ultraviolet Radiation Technique for Removal of the Indoor Air Volatile Organic Compounds and Bioaerosol
Author(s):		Liu CY; Tseng CH; Wang HC; Dai CF; Shih YH;
Address:		"Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei 10608, Taiwan. Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei 10608, Taiwan. tsengco@ntut.edu.tw. Union Professional Group of Architecture, Taipei 10608, Taiwan"
Journal Title:		Int J Environ Res Public Health
Year:		2019
Volume:		20190717
Issue:		14
Page Number:		-
DOI:		10.3390/ijerph16142557
ISSN/ISBN:		1660-4601 (Electronic) 1661-7827 (Print) 1660-4601 (Linking)
Abstract:		"This study examined the use of high dosages of ultraviolet germicidal irradiation (UVGI) (253.7 nm) to deal with various concentrations of air pollutants, such as formaldehyde (HCHO), total volatile organic compounds (TVOC), under various conditions of humidity. A number of irradiation methods were applied for various durations in field studies to examine the efficiency of removing HCHO, TVOC, bacteria, and fungi. The removal efficiency of air pollutants (HCHO and bacteria) through long-term exposure to UVGI appears to increase with time. The effects on TVOC and fungi concentration were insignificant in the first week; however, improvements were observed in the second week. No differences were observed regarding the removal of HCHO and TVOC among the various irradiation methods in this study; however significant differences were observed in the removal of bacteria and fungi"
Keywords:		"Aerosols *Air Microbiology Air Pollutants/*isolation & purification/radiation effects Air Pollution, Indoor/*prevention & control Formaldehyde/*isolation & purification/radiation effects Humidity Photolysis Ultraviolet Rays Volatile Organic Compounds/*iso;"
Notes:		"MedlineLiu, Chao-Yun Tseng, Chao-Heng Wang, Huang-Chin Dai, Chuan-Fa Shih, Yi-Hsuan eng Comparative Study Evaluation Study Research Support, Non-U.S. Gov't Switzerland 2019/07/20 Int J Environ Res Public Health. 2019 Jul 17; 16(14):2557. doi: 10.3390/ijerph16142557"