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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/27560

    標題: Atmospheric Dry Deposition of Polychlorinated Dibenzo-p-Dioxins/Dibenzofurans (PCDD/Fs) and Polychlorinated Biphenyls (PCBs) in Southern Taiwan
    作者: Mi, Hsiao-Hsuan
    Wu, Zong-Sian
    Lin, Long-Full
    Lai, Yi-Chieh
    Lee, Yen-Yi
    Wang, Lin-Chi
    Chang-Chien, Guo-Ping
    Wang, Lin-Chi�
    Wang, Lin-Chi�
    貢獻者: 環境工程與科學系
    關鍵字: Polychlorinated Dibenzo-P-Dioxins/Dibenzofurans (Pcdd/Fs)
    Polychlorinated Biphenyls (Pcbs)
    Gas-Particle Partitioning
    Dry Deposition Flux
    Dry Deposition Velocity
    日期: 2012-10
    上傳時間: 2014-03-21 16:13:30 (UTC+8)
    出版者: Taiwan Assoc Aerosol Res-Taar
    摘要: Dry deposition is one of the major routes by which air pollutants enter the ecosystem, and thus this study investigated the dry deposition characteristics of polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs) and biphenyls (PCBs) in the ambient air of industrial, urban, and rural areas in southern Taiwan from November 2010 to May 2011. Average dry deposition fluxes of total PCDD/Fs and PCBs in the ambient air of four sites were 157-544 pg/m(2)-day (8.30-27.5 pg I-TEQ/m(2)-day) and 289-1010 pg/m(2)-day (0.540-1.94 pg WHO-TEQ/m(2)-day), respectively. The results showed that particle phase depositions dominated the dry deposition processes for the removal of PCDD/Fs and PCBs from the atmosphere, and the atmospheric deposition flux in the cold season tended to be higher than that during the warm season. The dry deposition velocity of individual PCDD/Fs (0.031-0.546 cm/s) increased as the number of chlorinated substitutes increased, which were similar to those measured or predicted in other Asian countries. Similar patterns of dry deposition velocities were observed for individual PCBs (0.069-3.38 cm/s), due to the fact that low chlorinated PCBs are predominant in gas phase and have lower deposition velocities.
    關聯: Aerosol And Air Quality Research, 12(5), 1016-1029
    Appears in Collections:[環境工程與科學系(所)] 期刊論文

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