國家衛生研究院 NHRI:Item 3990099045/2420
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    題名: Size distribution of particle-bound polychlorinated dibenzo-p-dioxins and dibenzofurans in the ambient air of a municipal incinerator
    作者: Chao, MR;Hu, CW;Ma, HW;Chang-Chien, GP;Lee, WJ;Chang, LW;Wu, KY
    貢獻者: Division of Environmental Health and Occupational Medicine
    摘要: The atmospheric particle size distributions of 2,3,7,8-substituted polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) between 0.056 and 100 mum in aerodynamic diameter (D-p) were measured at two sampling sites during January 2002. These sites were 1.1 and 2.1 km downwind from a municipal incinerator in central Taiwan, respectively. Size-segregated atmospheric particles were simultaneously collected by means of a cascade impactor and a rotary impactor. The results showed that PCDD/Fs were associated with the full size range of atmospheric particles. More than 80% of the SigmaPCDD/Fs and toxic equivalents (TEQs) were found to be associated with fine particles of aerodynamic diameter, D-p < 2.0 mum. Generally a smaller particle had a higher SigmaPCDD/Fs content. The particle size distributions of SigmaPCDD/Fs and TEQs were shifted to larger particles with increasing time and distance. It is noteworthy that PCDFs were found to distribute significantly among aerosol size fractions based on their chlorination level at both sampling sites. There was an increase in the proportion of the less chlorinated PCDFs in the coarse particles (D-p > 2.0 mum). As for PCDDs, however, a relative enrichment of the less chlorinated congeners on coarse particles was found only at the farther sampling site (2.1 km). (C) 2003 Elsevier Ltd. All rights reserved.
    關鍵詞: Environmental Sciences;Meteorology & Atmospheric Sciences
    日期: 2003-11
    關聯: Atmospheric Environment. 2003 Nov;37(35):4945-4954.
    Link to: http://dx.doi.org/10.1016/j.atmosenv.2003.08.027
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1352-2310&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000186098000011
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0141615431
    顯示於類別:[吳焜裕(2001-2008)] 期刊論文
    [張惠華(1999-2009)] 期刊論文

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