Articles | Volume 18, issue 22
Atmos. Chem. Phys., 18, 16363–16383, 2018
https://doi.org/10.5194/acp-18-16363-2018
Atmos. Chem. Phys., 18, 16363–16383, 2018
https://doi.org/10.5194/acp-18-16363-2018
Research article
19 Nov 2018
Research article | 19 Nov 2018

Source apportionment of carbonaceous aerosols in Xi'an, China: insights from a full year of measurements of radiocarbon and the stable isotope 13C

Haiyan Ni et al.

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Cited articles

Anderson, R. S., Huang, L., Iannone, R., Thompson, A. E., and Rudolph, J.: Carbon kinetic isotope effects in the gas phase reactions of light alkanes and ethene with the OH radical at 296±4 K, J. Phys. Chem. A., 108, 11537–11544, 2004. 
Andersson, A.: A systematic examination of a random sampling strategy for source apportionment calculations, Sci. Total Environ., 412, 232–238, 2011. 
Andersson, A., Deng, J., Du, K., Zheng, M., Yan, C., Sköld, M., and Gustafsson, Ö.: Regionally-varying combustion sources of the January 2013 severe haze events over eastern China, Environ. Sci. Technol., 49, 2038–2043, 2015. 
Bandowe, B. A. M., Meusel, H., Huang, R. J., Ho, K., Cao, J., Hoffmann, T., and Wilcke, W.: PM2.5-bound oxygenated PAHs, nitro-PAHs and parent-PAHs from the atmosphere of a Chinese megacity: seasonal variation, sources and cancer risk assessment, Sci. Total Environ., 473–474, 77–87, https://doi.org/10.1016/j.scitotenv.2013.11.108, 2014. 
Bikkina, S., Andersson, A., Sarin, M., Sheesley, R., Kirillova, E., Rengarajan, R., Sudheer, A., Ram, K., and Gustafsson, Ö.: Dual carbon isotope characterization of total organic carbon in wintertime carbonaceous aerosols from northern India, J.Geophys. Res.-Atmos., 121, 4797–4809, 2016. 
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Short summary
Seasonal changes in organic carbon (OC) and elemental carbon (EC) sources in Xi'an, China, are investigated based on measurements of radiocarbon and the stable isotope 13C. Relative contributions to EC from biomass burning, coal combustion, and vehicle emissions change substantially between different seasons. Biomass burning contributes 60 % to the EC increment in winter. Comparing concentrations and sources of primary OC to total OC suggests non-negligible OC loss due to active photochemistry.
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