Source identification of PCDD/Fs for various atmospheric environments in a highly industrialized city

Wei Shan Lee, Guo Ping Chang-Chien, Lin Chi Wang, Wen Jhy Lee, Peng-Chi Tsai, Kuen Yuh Wu, Chieh Lin

研究成果: Article同行評審

122 引文 斯高帕斯(Scopus)

摘要

This study set out to identify possible PCDD/F emission sources for different atmospheric environments in a highly industrialized city located in southern Taiwan. We collected stack flue gas samples from five main stationary emission sources of the municipal solid waste incinerators (MSWIs), medical waste incinerators (MWIs), electric arc furnaces (EAFs), secondary aluminum smelters (ALSs), and sinter plants to assess the characteristics of their PCDD/F emissions. For mobile sources, congener profiles reported in U.S. EPA's database for unleaded gas-fueled vehicles (UGFV) and diesel-fueled vehicles (DFV) were directly adopted owing to lack of local data. The congener profiles of the 2,3,7,8-substituted PCDD/Fs were selected as the signatures of these PCDD/F emission sources. We conducted PCDD/F samplings on atmospheric environments of four categories, including background, residential area, traffic area, and industrial area. Through PCA and cluster analyses, we found that traffic areas were most influenced by PCDD/F emissions from UGFV and DFV, while those of industrial areas were mainly influenced by metallurgical facilities and MWIs. The above results were further examined by using the methodology of the indicatory PCDD/Fs. We confirmed that traffic areas were contributed by traffic sources, but industrial areas were simply affected by metallurgical facilities rather than MWIs. In conclusion, besides the use of PCA and cluster analyses, the methodology of the indicatory PCDD/Fs should be conducted for further validation in order to prevent misjudgment.

原文English
頁(從 - 到)4937-4944
頁數8
期刊Environmental Science and Technology
38
發行號19
DOIs
出版狀態Published - 2004 十月 5

All Science Journal Classification (ASJC) codes

  • 環境工程
  • 環境科學 (全部)
  • 環境化學

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