Articles | Volume 18, issue 16
Atmos. Chem. Phys., 18, 12595–12612, 2018
https://doi.org/10.5194/acp-18-12595-2018
Atmos. Chem. Phys., 18, 12595–12612, 2018
https://doi.org/10.5194/acp-18-12595-2018
Research article
30 Aug 2018
Research article | 30 Aug 2018

The diverse chemical mixing state of aerosol particles in the southeastern United States

Amy L. Bondy et al.

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Cited articles

Allen, H. M., Draper, D. C., Ayres, B. R., Ault, A., Bondy, A., Takahama, S., Modini, R. L., Baumann, K., Edgerton, E., Knote, C., Laskin, A., Wang, B., and Fry, J. L.: Influence of crustal dust and sea spray supermicron particle concentrations and acidity on inorganic NO3- aerosol during the 2013 Southern Oxidant and Aerosol Study, Atmos. Chem. Phys., 15, 10669–10685, https://doi.org/10.5194/acp-15-10669-2015, 2015. 
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Attwood, A. R., Washenfelder, R. A., Brock, C. A., Hu, W., Baumann, K., Campuzano-Jost, P., Day, D. A., Edgerton, E. S., Murphy, D. M., Palm, B. B., McComiskey, A., Wagner, N. L., de Sá, S. S., Ortega, A., Martin, S. T., Jimenez, J. L., and Brown, S. S.: Trends in sulfate and organic aerosol mass in the Southeast U.S.: Impact on aerosol optical depth and radiative forcing, Geophys. Res. Lett., 41, 7701–7709, 2014. 
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To determine important sources of aerosols during the Southern Oxidant and Aerosol Study (SOAS), as well as their mixing with secondary species, individual particles were analyzed with electron and X-ray microscopy to determine size and chemical composition. Secondary organic aerosol, sea spray aerosol, and mineral dust each dominated during different periods. Particles were less similar chemically to each other than is commonly assumed, which is important for air quality and climate models.
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