Mathematics – Logic
Scientific paper
Jun 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998georl..25.2181k&link_type=abstract
Geophysical Research Letters, Volume 25, Issue 12, p. 2181-2184
Mathematics
Logic
27
Atmospheric Composition And Structure: Aerosols And Particles, Atmospheric Composition And Structure: Troposphere-Composition And Chemistry, Atmospheric Composition And Structure: Instruments And Techniques, Atmospheric Composition And Structure: Chemical Kinetic And Photochemical Properties
Scientific paper
The pH of deliquesced sea-salt aerosol was derived from the Cl phase partitioning measured in marine air, corresponding meteorological conditions, and the thermodynamic properties of HCl. Under moderately polluted conditions at Bermuda during spring 1996, calculated sea-salt aerosol pH ranged from the mid-2s to the mid-3s. Cl- and NO3- concentrations in the lower half of the sea-salt size distribution were near thermodynamic equilibrium with respect to HClg and HNO3g; shorter aerosol lifetimes and slower reaction kinetics involving larger aerosol sustained moderate phase disequilibria. The active multiphase cycling of HCl buffered sea-salt aerosol pH to approximately the same value across the particle size spectrum.
Keene William C.
Savoie Dennis L.
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