Articles | Volume 19, issue 15
https://doi.org/10.5194/acp-19-10405-2019
https://doi.org/10.5194/acp-19-10405-2019
Research article
 | 
15 Aug 2019
Research article |  | 15 Aug 2019

High contributions of fossil sources to more volatile organic aerosol

Haiyan Ni, Ru-Jin Huang, Junji Cao, Wenting Dai, Jiamao Zhou, Haoyue Deng, Anita Aerts-Bijma, Harro A. J. Meijer, and Ulrike Dusek

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Cited articles

Agrios, K., Salazar, G., and Szidat, S.: A continuous-flow gas interface of a thermal/optical analyzer With 14C AMS for source apportionment of atmospheric aerosols, Radiocarbon, 59, 921–932, https://doi.org/10.1017/RDC.2016.88, 2016. 
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. 
Burtscher, H., Baltensperger, U., Bukowiecki, N., Cohn, P., Hüglin, C., Mohr, M., Matter, U., Nyeki, S., Schmatloch, V., Streit, N., and Weingartner, E.: Separation of volatile and non-volatile aerosol fractions by thermodesorption: instrumental development and applications, J. Aerosol Sci., 32, 427–442, 2001. 
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We apply radiocarbon source apportionment of more volatile organic carbon (mvOC) to winter aerosol samples from six Chinese cities. We find a consistently larger contribution of fossil sources to mvOC than to secondary or total organic carbon. Fossil mvOC concentrations are strongly correlated with primary fossil OC but not with secondary fossil OC. The variability in nonfossil mvOC seems to be related to both primary and secondary biomass burning sources.
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