TY - JOUR
T1 - 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
AU - Yu, Kuei Min
AU - Lee, Wen Jhy
AU - Tsai, Perng Jy
AU - Fang, Kenneth
AU - Lin, Mark
N1 - Funding Information:
This research was supported by funds from Taiwan Steel Union Co. Ltd. The authors sincerely acknowledge Professor Cary T. Chiou for his insightful discussion on the content of this work.
Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2010/8
Y1 - 2010/8
N2 - 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.
AB - 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.
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U2 - 10.1016/j.chemosphere.2010.06.024
DO - 10.1016/j.chemosphere.2010.06.024
M3 - Article
C2 - 20598338
AN - SCOPUS:77955416648
VL - 80
SP - 1131
EP - 1136
JO - Chemosphere
JF - Chemosphere
SN - 0045-6535
IS - 10
ER -