Abstract
The secondary production of inorganic aerosol in the urban area of Hamburg, Germany, and in the greater Athens area, Greece, was investigated using the thermodynamic equilibrium model ISORROPIA II coupled to an urban-scale chemistry transport model. Sea salt particles, one of the most prominent constituents of natural aerosols in the coastal environment, may play a significant role in the physicochemical modification of pollutants. Previous model results for Athens have shown that the inclusion of non-volatile cations derived from domestic burning and dust events impacts the spatial distribution of fine nitrate concentrations. In both coastal urban areas, the presence of chloride derived from sea salt emissions strongly affects the secondary formation of nitrate aerosols.
