Abstract: Evidence is presented indicating that nitrate present in stratospheric filtration samples represents adsorbed nitric acid vapor. The concentrations observed are comparable to those found by solar infrared spectrometry. ...

Abstract: A reaction route is suggested, based on experimental results, for the conversion of sodium chloride particles to gaseous hydrogen chloride in the atmosphere. The first step is the hydrolysis of nitrogen dioxide (NO2) to ...

Abstract: The homogeneous- and heterogeneous-heteromolecular nucleation of H2SO4-H2O solution droplets in the stratosphere is investigated and order-of-magnitude nucleation rates are evaluated. The heterogeneous processes considered ...

Abstract: Samples of particles collected by impaction in the antarctic atmosphere near the earth's surface during November and December 1966 contained much higher concentrations of sulfur than similar samples collected in most parts ...

Abstract: An extensive series of experiments is being undertaken to determine the concentrations and transport of trace atmospheric constituents in the stratosphere and troposphere in the vicinity of jet streams during tropopause ...

Abstract: The relative efficiencies of impactors of the type used by Junge and co-workers for collecting stratosphere sulfate particles and of filters used in these laboratories have been determined by flying these collecting devices ...