Actions for Phase transformation and growth of hygroscopic aerosols [electronic resource].

Email RIS file
Bookmark
Report an Issue

Phase transformation and growth of hygroscopic aerosols [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 1999.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
21 pages : digital, PDF file
Additional Creators
Brookhaven National Laboratory, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Free-to-read Unrestricted online access
Summary
Ambient aerosols play an important role in many atmospheric processes affecting air quality, visibility degradation, and climatic changes as well. Both natural and anthropogenic sources contribute to the formation of ambient aerosols, which are composed mostly of sulfates, nitrates, and chlorides in either pure or mixed forms. These inorganic salt aerosols are hygroscopic by nature and exhibit the properties of deliquescence and efflorescence in humid air. For pure inorganic salt particles with diameter larger than 0.1 micron, the phase transformation from a solid particle to a saline droplet occurs only when the relative humidity in the surrounding atmosphere reaches a certain critical level corresponding to the water activity of the saturated solution. The droplet size or mass in equilibrium with relative humidity can be calculated in a straightforward manner from thermodynamic considerations. For aqueous droplets 0.1 micron or smaller, the surface curvature effect on vapor pressure becomes important and the Kelvin equation must be used.
Report Numbers
E 1.99:bnl--62295-99/11-rev
E 1.99: kc030202
kc030202
bnl--62295-99/11-rev
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
11/01/1999.
"bnl--62295-99/11-rev"
" kc030202"
Tang, I.N.
Funding Information
AC02-98CH10886
AS176-ECD
View MARC record | catkey: 14135041