Abstract: Stratospheric nitric acid vapor was collected by sorption on cellulose filters impregnated with dibutoxy-ethylpthalate. The sampling was conducted by both stratospheric aircraft and balloons from 53S to 65N up to altitudes ...

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 ...