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Mass accommodation coefficient measurements for HNO3, HCl and N2O5 on water, ice and aqueous sulfuric acid droplet surfacesPreliminary results are reported of the direct measurement of accommodation coefficients for HNO3, N2O5 and HCl on water drops, aqueous sulfuric acid drops and ice particles. The heterogeneous chemistry of these species together with ClONO2 has been implicated in the ozone depletion observed in the Antarctic stratosphere during the spring in the last eight years. The most plausible chemical mechanism involves the removal of nitrogen oxide species via condensation on ice particles in polar stratospheric clouds resulting in a increase in the active chlorine species responsible for the ozone depletion. The observation of low NO2 and high ClO densities in the Antarctic stratosphere last summer appear to be consistent with such a mechanism.
Document ID
19890005167
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Worsnop, Douglas (Aerodyne Research, Inc., Billerica MA., United States)
Zahniser, Mark (Aerodyne Research, Inc., Billerica MA., United States)
Kolb, Charles (Aerodyne Research, Inc., Billerica MA., United States)
Watson, Lyn (Boston Coll. Chestnut Hill, MA., United States)
Vandoren, Jane (Boston Coll. Chestnut Hill, MA., United States)
Jayne, John (Boston Coll. Chestnut Hill, MA., United States)
Davidovits, Paul (Boston Coll. Chestnut Hill, MA., United States)
Date Acquired
September 5, 2013
Publication Date
May 1, 1988
Publication Information
Publication: NASA, Goddard Space Flight Center, Polar Ozone Workshop. Abstracts
Subject Category
Environment Pollution
Accession Number
89N14538
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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