Department of Environmental Engineering and Science, National Pingtung University of Science and Technology, Pingtung County, Taiwan.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2009 Nov;44(13):1335-42. doi: 10.1080/10934520903213087.
This study characterizes polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs), polycyclic aromatic hydrocarbons (PAHs), and heavy metal concentrations in stack flue gas, workplace air, fly ash, bottom ash, and ambient air of a secondary aluminum smelter. The total PAH concentration in workplace air was dominated by 2- and 3-ring PAHs, accounting for 86.2% of the gas phase in the total PAHs. The PCDD/F concentrations in workplace air are 1-7 fold higher than that in ambient air. The mass distribution ratio for total PCDD/Fs was soil > ash > workplace air > ambient air > flue gas. Aluminum and Zn had the highest concentrations. A positive correlation existed between PCDD/Fs and PAHs concentrations (r(2) = 0.920). The operation of secondary aluminum smelter affects the pollutant concentrations and surrounding air quality. Experimental results suggest that besides the terminal control technologies for stack flue gases, engineering control technologies in the workplace need further improvement.
本研究对二次铝冶炼厂烟道气、工作场所空气、飞灰、底灰和环境空气中的多氯二苯并对二恶英/呋喃（PCDD/Fs）、多环芳烃（PAHs）和重金属浓度进行了表征。工作场所空气中总多环芳烃浓度以 2 环和 3 环多环芳烃为主，占总气相多环芳烃的 86.2%。工作场所空气中的 PCDD/F 浓度比环境空气中高 1-7 倍。总 PCDD/Fs 的质量分布比例为土壤>灰>工作场所空气>环境空气>烟道气。铝和 Zn 的浓度最高。PCDD/Fs 和 PAHs 浓度之间存在正相关关系（r(2) = 0.920）。二次铝冶炼厂的运行会影响污染物浓度和周围空气质量。实验结果表明，除了烟道气的终端控制技术外，工作场所的工程控制技术还需要进一步改进。
