Emissions of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) from both of point and area sources of an electric-arc furnace-dust treatment plant and their impacts to the vicinity environments

Kuei Min Yu, Wen Jhy Lee, Perng Jy Tsai, Kenneth Fang, Mark Lin

研究成果: Article

11 引文 斯高帕斯(Scopus)

摘要

This study was set out to investigate emissions of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) from both the stack (i.e., point source) and plant fugitives (i.e., area source) of an electric-arc furnace-dust treatment plant (EAFDTP) and their impact to the vicinity environments. The emission rate of the point source (2360ng I-TEQh-1) was determined directly by measuring PCDD/F concentrations of the stack flue gas. The emission rate of the area source (1080ng I-TEQm-2h-1) was estimated by using the Industrial Sources Complex Short-Term (ISCST3) model based on concentrations measured at the downwind side of the plant. The mean emission factors of 785 and 893ngI-TEQton-1 ZnO were found for the point and area source, respectively. The above results suggest that the area source accounted for more than 50% of total PCDD/F emissions for the selected EAFDTP. The contribution of the point source to the atmospheric PCDD/F concentrations of the upwind site and downwind site of the EAFDTP were 0 and 0.27fgI-TEQNm-3, respectively. The contributions of the area source were 0.020 and 3.3fgI-TEQNm-3, respectively. The total contribution of the selected EAFDTP (including both the point and area sources) to the concentrations in both upwind and downwind side vicinities were all less than 10%. Finally, the impact of PCDD/F emissions from the selected EAFDTP to the vicinity atmospheric environments was discussed in the present study.

原文English
頁(從 - 到)1131-1136
頁數6
期刊Chemosphere
80
發行號10
DOIs
出版狀態Published - 2010 八月

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Chemistry(all)
  • Pollution
  • Health, Toxicology and Mutagenesis

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