UPTAKE COEFFICIENT OF CHARGED AEROSOLS - IMPLICATIONS FOR ATMOSPHERICCHEMISTRY

Gas uptake onto liquid particles is influenced by the electrical charg e on the particle. This charge rearranges the spatial distribution of the dissolved reactant ions, modifying the solute-solvent reaction at the surface and for some distance into the liquid. This results in a m odification of the uptake coefficient. A general expression, applicabl e to laboratory and atmospheric conditions, is presented. The change i n the uptake coefficient is proportional to particle charge and the sq uare of the Debye length within the liquid. It is inversely proportion al to the square of the particle radius.