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Volume 15, issue 19
Atmos. Chem. Phys., 15, 11341–11353, 2015
https://doi.org/10.5194/acp-15-11341-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Atmos. Chem. Phys., 15, 11341–11353, 2015
https://doi.org/10.5194/acp-15-11341-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 12 Oct 2015

Research article | 12 Oct 2015

Sea salt aerosols as a reactive surface for inorganic and organic acidic gases in the Arctic troposphere

J. W. Chi et al.

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Allen, H. C., Laux, J. M., Vogt, R., Finlayson-Pitts, B. J., and Hemminger, J. C.: Water-induced reorganization of ultrathin nitrate films on NaCl: implications for the tropospheric chemistry of sea salt particles, J. Phys. Chem., 100, 6371–6375, https://doi.org/10.1021/jp953675a, 1996.
Ammann, M., Cox, R. A., Crowley, J. N., Jenkin, M. E., Mellouki, A., Rossi, M. J., Troe, J., and Wallington, T. J.: Evaluated kinetic and photochemical data for atmospheric chemistry: Volume VI – heterogeneous reactions with liquid substrates, Atmos. Chem. Phys., 13, 8045–8228, https://doi.org/10.5194/acp-13-8045-2013, 2013.
Andreae, M. O., Charlson, R. J., Bruynseels, F., Storms, H., Van Grieken, R., and Maeahaut, W.: Internal mixture of sea salt, silicates, and excess sulfate in marine aerosols, Science, 232, 1620–1623, https://doi.org/10.1126/science.232.4758.1620, 1986.
Ault, A. P., Peters, T. M., Sawvel, E. J., Casuccio, G. S., Willis, R. D., Norris, G. A., and Grassian, V. H.: Single-particle SEM-EDX analysis of iron-containing coarse particulate matter in an urban environment: sources and distribution of iron within Cleveland, Ohio, Environ. Sci. Technol., 46, 4331–4339, 2012.
Ault, A. P., Guasco, T. L., Ryder, O. S., Baltrusaitis, J., Cuadra-Rodriguez, L. A., Collins, D. B., Ruppel, M. J., Bertram, T. H., Prather, K. A., and Grassian, V. H.: Inside versus outside: ion redistribution in nitric acid reacted sea spray aerosol particles as determined by single particle analysis, J. Am. Chem. Soc., 135, 14528–14531, https://doi.org/10.1021/ja407117x, 2013a.
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Sea salt aerosols (SSA) are dominant particles in the Arctic atmosphere. Our result suggests that the hydrophilic MgCl2 coating in fresh SSA likely intrigued the heterogeneous reactions at the beginning of SSA and acidic gases in the Arctic. The content of organic matter increased in the aged SSA compared with the fresh SSA, which suggests organic acids (beside inorganic acids) participate in the ageing of SSA in the Arctic.
Sea salt aerosols (SSA) are dominant particles in the Arctic atmosphere. Our result suggests...
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