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The Study of an Ultraviolet Radiation Technique for Removal of the Indoor Air Volatile Organic Compounds and Bioaerosol

Author

Listed:
  • Chao-Yun Liu

    (Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei 10608, Taiwan)

  • Chao-Heng Tseng

    (Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei 10608, Taiwan)

  • Huang-Chin Wang

    (Union Professional Group of Architecture, Taipei 10608, Taiwan)

  • Chuan-Fa Dai

    (Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei 10608, Taiwan)

  • Yi-Hsuan Shih

    (Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei 10608, Taiwan)

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.

Suggested Citation

  • Chao-Yun Liu & Chao-Heng Tseng & Huang-Chin Wang & Chuan-Fa Dai & Yi-Hsuan Shih, 2019. "The Study of an Ultraviolet Radiation Technique for Removal of the Indoor Air Volatile Organic Compounds and Bioaerosol," IJERPH, MDPI, vol. 16(14), pages 1-16, July.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:14:p:2557-:d:249296
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    References listed on IDEAS

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    1. Gwangpyo Ko & Harriet A. Burge & Edward A. Nardell & Kimberly M. Thompson, 2001. "Estimation of Tuberculosis Risk and Incidence under Upper Room Ultraviolet Germicidal Irradiation in a Waiting Room in a Hypothetical Scenario," Risk Analysis, John Wiley & Sons, vol. 21(4), pages 657-674, August.
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