Atmos. Chem. Phys. Discuss., 13, 3345-3377, 2013
© Author(s) 2013. This work is distributed
under the Creative Commons Attribution 3.0 License.
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This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
Characterization of organic aerosol produced during pulverized coal combustion in a drop tube furnace
X. Wang1, B. J. Williams1, X. Wang2, Y. Tang2, Y. Huang2, L. Kong2, X. Yang2, and P. Biswas1
1Aerosol and Air Quality Research Laboratory, Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, USA
2Department of Environmental Science and Engineering, Fudan University, Shanghai, China

Abstract. Controlled bench scale pulverized coal combustion studies were performed that demonstrate that inorganic particles play a critical role as carrier of organic species. Two commonly-used aerosol mass spectrometry techniques have been applied to characterize fine particle formation during coal combustion. It was found that the organic species in coal combustion aerosols have similar mass spectra as those from biomass combustion. Ambient measurements in Shanghai, China confirm the presence of these species in approximately 36~42% of the sampled particles. With the absence of major biomass sources in the Shanghai area, it is suggested that coal combustion may be the main source of these particles. This work indicates there is a significant potential for incorrect apportionment of coal combustion particles to biomass burning sources using widely adopted mass spectrometry techniques.

Citation: Wang, X., Williams, B. J., Wang, X., Tang, Y., Huang, Y., Kong, L., Yang, X., and Biswas, P.: Characterization of organic aerosol produced during pulverized coal combustion in a drop tube furnace, Atmos. Chem. Phys. Discuss., 13, 3345-3377, doi:10.5194/acpd-13-3345-2013, 2013.
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