Record Display for the EPA National Library Catalog


Main Title Potential Contribution of Sulfate Production in Cumulus Cloud Droplets to Ground Level Particle Sulfur Concentrations.
Author Altshuller, A. P. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Year Published 1987
Report Number EPA/600/J-87/076;
Stock Number PB88-125554
Additional Subjects Cumulus clouds ; Sulfur dioxide ; Fog ; Precipitation(Meteorology) ; Photochemical reactions ; Aerosols ; Pollution ; Cloud physics ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB88-125554 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 11p
Relationships have been examined between the presence or absence of cumulus clouds and 3rd quarter fine particle sulfur concentrations in St. Louis. An association between the presence of cumulus clouds with SO2 conversions in droplets and incrementally higher fine particle sulfur concentrations can be demonstrated. However, diurnal patterns of fine particle sulfur concentrations in the presence of cumulus clouds are not consistent with local contributions from sulfate formation in cumulus clouds. Morning fog often occurs on the same days on which cumulus clouds form later. Reactions of SO2 in fog droplets appear to make a contribution, but do not account for the major part of the increments in fine particle sulfur concentrations associated with cumulus clouds.