Chia Nan University of Pharmacy & Science Institutional Repository:Item 310902800/26728
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    Please use this identifier to cite or link to this item: https://ir.cnu.edu.tw/handle/310902800/26728


    Title: Comparison of Chinese Herbal Oils and Lemon Oil for Formation of Secondary Organic Aerosol
    Authors: Huang, Hsiao-Lin
    Sheu, Shiann-Cherng
    Wu, Yi-Ying
    Hsu, Der-Jen
    Contributors: 產業安全衛生與防災研究所
    Keywords: Secondary organic aerosol (SOA)
    Date: 2011-12
    Issue Date: 2013-06-26 11:36:56 (UTC+8)
    Abstract: Several studies reported that evaporation of fragrant essential oils in an indoor environment may cause the emission of
    secondary organic aerosols (SOAs). However, the tendency of forming SOAs from the use of Chinese herbal oils has not been
    reported. This study investigated the formation of SOAs from various Chinese herbal oils when reacting with ozone in a
    controlled environment chamber under different test conditions. Lemon oil, a fragrant essential oil, was also tested under the
    identical experimental conditions for comparison. The results showed that the formation of SOAs from Chinese herbal oils
    was limited, compared with lemon oil. Of the Chinese herbal oils tested, Chinese mulberry and perillae folium oils produced
    more SOAs than the other oils. GC/MS analysis of the essential oils demonstrated the presence of SOA precursors, such as dlimonene, in Chinese mulberry and perillae folium oils but not in the other Chinese herbal oils. Compared with the tested
    Chinese herbal oils, evaporation of 1 mL lemon oil in the presence of 30 ppb ozone may cause an increase of 6.4 μg/m3
    in
    indoor PM level in a typical room or office. This study concluded that the use of Chinese herbal oils tested in this study would
    result in a lower particle concentration in indoor settings compared with fragrant essential oils.
    Relation: Aerosol and Air Quality Research 11(7), pp.854-859
    Appears in Collections:[Dept. of Occupational Safety] Periodical Articles

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