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Characterizing polychlorinated dibenzo-p-dioxins and dibenzofurans in the surrounding environment and workplace of a secondary aluminum smelter
AbstractThis study aims to characterize polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in the surrounding environment and workplace of a secondary aluminum smelter (secondary ALS). The mean I-TEQ concentrations in the stack flue gases and PCDD/F emission factor of the secondary ALS is 9.02ngI-TEQNm−3 and 50.1μg I-TEQton-feedstock−1, respectively. The PCDD/F concentrations of outdoor (site O1, O2 and O3) and workplace air (site W1) during operation period are 0.670, 0.284, 0.141 and 0.571pg I-TEQNm−3, which are 3.3-, 2.1-, 1.8- and 2.5-fold higher than that during no operation period. The highest PCDD/F air concentrations (2.26pgI-TEQN-m−3) were measured at site W2 during furnace maintenance. The elevated PCDD/F air concentration (2.26pgI-TEQNm−3) caused by the fugitive particle during furnace maintenance implies that the PCDD/F concentration of air in the furnace that worker breathe could be extremely high. It reveals that PCDD/F exposure of furnace maintenance workers may be serious and further research on occupational exposure needs to be conducted.
Characterizing polychlorinated dibenzo-p-dioxins and dibenzofurans in the surrounding environment and workplace of a secondary aluminum smelter
AbstractThis study aims to characterize polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in the surrounding environment and workplace of a secondary aluminum smelter (secondary ALS). The mean I-TEQ concentrations in the stack flue gases and PCDD/F emission factor of the secondary ALS is 9.02ngI-TEQNm−3 and 50.1μg I-TEQton-feedstock−1, respectively. The PCDD/F concentrations of outdoor (site O1, O2 and O3) and workplace air (site W1) during operation period are 0.670, 0.284, 0.141 and 0.571pg I-TEQNm−3, which are 3.3-, 2.1-, 1.8- and 2.5-fold higher than that during no operation period. The highest PCDD/F air concentrations (2.26pgI-TEQN-m−3) were measured at site W2 during furnace maintenance. The elevated PCDD/F air concentration (2.26pgI-TEQNm−3) caused by the fugitive particle during furnace maintenance implies that the PCDD/F concentration of air in the furnace that worker breathe could be extremely high. It reveals that PCDD/F exposure of furnace maintenance workers may be serious and further research on occupational exposure needs to be conducted.
Characterizing polychlorinated dibenzo-p-dioxins and dibenzofurans in the surrounding environment and workplace of a secondary aluminum smelter
Chen, Shui-Jen (author) / Lee, Wei-Shan (author) / Chang-Chien, Guo-Ping (author) / Wang, Lin-Chi (author) / Lee, Wen-Jhy (author) / Kao, Jen-Ho (author) / Hu, Ming-Tsan (author)
Atmospheric Environment ; 38 ; 3729-3732
2004-02-24
4 pages
Article (Journal)
Electronic Resource
English
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