Articles | Volume 19, issue 5
https://doi.org/10.5194/acp-19-3191-2019
https://doi.org/10.5194/acp-19-3191-2019
Research article
 | 
12 Mar 2019
Research article |  | 12 Mar 2019

Organosulfates in Atlanta, Georgia: anthropogenic influences on biogenic secondary organic aerosol formation

Anusha Priyadarshani Silva Hettiyadura, Ibrahim M. Al-Naiema, Dagen D. Hughes, Ting Fang, and Elizabeth A. Stone

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Cited articles

Al-Naiema, I. M. and Stone, E. A.: Evaluation of anthropogenic secondary organic aerosol tracers from aromatic hydrocarbons, Atmos. Chem. Phys., 17, 2053–2065, https://doi.org/10.5194/acp-17-2053-2017, 2017. 
Al-Naiema, I. M., Offenberg, J., Lewandowski, M., Fang, T., and Stone, E. A.: Secondary organic aerosols from aromatic hydrocarbons in Atlanta, Georgia, in preparation, 2019. 
Angove, D. E., Fookes, C. J. R., Hynes, R. G., Walters, C. K., and Azzi, M.: The characterisation of secondary organic aerosol formed during the photodecomposition of 1,3-butadiene in air containing nitric oxide, Atmos. Environ., 40, 4597–4607, https://doi.org/10.1016/j.atmosenv.2006.03.046, 2006. 
Blair, S. L., MacMillan, A. C., Drozd, G. T., Goldstein, A. H., Chu, R. K., Paša-Tolić, L., Shaw, J. B., Tolić, N., Lin, P., Laskin, J., Laskin, A., and Nizkorodov, S. A.: Molecular characterization of organosulfur compounds in biodiesel and diesel fuel secondary organic aerosol, Environ. Sci. Technol., 51, 119–127, https://doi.org/10.1021/acs.est.6b03304, 2017. 
Blanchard, C. L., Hidy, G. M., and Tanenbaum, S.: Ozone in the southeastern United States: An observation-based model using measurements from the SEARCH network, Atmos. Environ., 88, 192–200, https://doi.org/10.1016/j.atmosenv.2014.02.006, 2014. 
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This study examines anthropogenic influences on secondary organic aerosol at an urban site in Atlanta, Georgia. Organosulfates accounted for 16.5 % of PM2.5 organic carbon and were mostly derived from isoprene. In contrast to a rural forested site, Atlanta's isoprene-derived organosulfate concentrations were 2–6 times higher and accounted for twice as much organic carbon. Insights are provided as to which organosulfates should be measured in future studies and targeted for standard development.
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