Stack and fugitive emissions of major air pollutants from typical brick kilns in China
2017
Chen, Yuanchen | Du, Wei | Zhuo, Shaojie | Liu, Weijian | Liu, Yuanlong | Shen, Guofeng | Wu, Shuiping | Li, Jianjun | Zhou, Bianhong | Wang, Gehui | Zeng, E. Y. (Eddy Y.) | Cheng, Hefa | Liu, Wenxin | Tao, Shu
Little information exists on emission factors (EFs, quantities of pollutants emitted per unit of fuel consumed) for brick kilns in China, although brick kilns are important emission sources of many air pollutants, and 45% of the world's bricks are produced in China. In this study, EFs of carbon dioxide (CO2), carbon monoxide (CO), sulfur dioxide (SO2), nitrogen oxides (NOx), particulate matters (PMs), black carbon (BC), organic carbon (OC), and polycyclic aromatic hydrocarbons (PAHs) for brick kilns were derived based on field measurements of a total of 18 brick kilns of major types in China. This was the first study to quantify EFs of both stack and fugitive sources based on a modified carbon balance method that was developed for this study. The EFs of most pollutants, especially the incomplete combustion products in fugitive emissions, were much higher than those for stack emissions, indicating a substantial underestimation of total emissions when leakage is not taken into consideration. This novel method can be applied to quantify emissions from other similar sources with both stack and fugitive emissions.
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