Articles | Volume 21, issue 10
https://doi.org/10.5194/acp-21-8273-2021
https://doi.org/10.5194/acp-21-8273-2021
Research article
 | 
28 May 2021
Research article |  | 28 May 2021

Source apportionment of carbonaceous aerosols in Beijing with radiocarbon and organic tracers: insight into the differences between urban and rural sites

Siqi Hou, Di Liu, Jingsha Xu, Tuan V. Vu, Xuefang Wu, Deepchandra Srivastava, Pingqing Fu, Linjie Li, Yele Sun, Athanasia Vlachou, Vaios Moschos, Gary Salazar, Sönke Szidat, André S. H. Prévôt, Roy M. Harrison, and Zongbo Shi

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Cited articles

Abdullahi, K. L., Delgado-Saborit, J. M., and Harrison, R. M.: Sensitivity of a Chemical Mass Balance model for PM2.5 to source profiles for differing styles of cooking, Atmos. Environ., 178, 282–285, https://doi.org/10.1016/j.atmosenv.2018.01.046, 2018. 
Agrios, K., Salazar, G., Zhang, Y.-L., Uglietti, C., Battaglia, M., Luginbühl, M., Ciobanu, V. G., Vonwiller, M., and Szidat, S.: Online coupling of pure O2 thermo-optical methods – 14C AMS for source apportionment of carbonaceous aerosols, Nucl. Instrum. Meth. B, 361, 288–293, https://doi.org/10.1016/j.nimb.2015.06.008, 2015. 
Andreae, M. O. and Merlet, P.: Emission of trace gases and aerosols from biomass burning, Global Biogeochem. Cy., 15, 955–966, https://doi.org/10.1029/2000GB001382, 2001. 
Barrett, T. E., Robinson, E. M., Usenko, S., and Sheesley, R. J.: Source contributions to wintertime elemental and organic carbon in the Western Arctic based on radiocarbon and tracer apportionment, Environ. Sci. Technol., 49, 11631–11639., https://doi.org/10.1021/acs.est.5b03081, 2015. 
Bernardoni, V., Calzolai, G., Chiari, M., Fedi, M., Lucarelli, F., Nava, S., Piazzalunga, A., Riccobono, F., Taccetti, F., Valli, G., and Vecchi, R.: Radiocarbon analysis on organic and elemental carbon in aerosol samples and source apportionment at an urban site in Northern Italy, J. Aerosol Sci., 56, 88–99, https://doi.org/10.1016/j.jaerosci.2012.06.001, 2013. 
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Short summary
This study provides a newly developed method which combines radiocarbon (14C) with organic tracers to enable source apportionment of primary and secondary fossil vs. non-fossil sources of carbonaceous aerosols at an urban and a rural site of Beijing. The source apportionment results were compared with those by chemical mass balance and AMS/ACSM-PMF methods. Correlations of WINSOC and WSOC with different sources of OC were also performed to elucidate the formation mechanisms of SOC.
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