NO/sub 2/ transformation in cloud droplets

Conference · Tue Jan 01 04:00:00 EST 1985 · Proc., Annu. Meet., Air Pollut. Control Assoc.; (United States)

OSTI ID:5638281

Gertler, A W; Whitbeck, M R; Miller, D F

A major pathway for the atmospheric transformation of pollutants is heterogeneous conversion of absorbed gases in liquid droplets. In the case of acidic precursors such as sulfur dioxide and the oxides of nitrogen, these species are removed from the air at the expense of acidifying cloud or fog. Evaporation of these droplets may in turn yield a modified aerosol containing the products of the transformation processes. Thus, the ultimate fate of acidic precursors and the chemical species produced in cloud droplets are highly dependent on liquid phase chemistry and cloud microphysics. The processes and time scale of nucleation, condensation and droplet growth and duration can be qualitatively represented by experimental simulations in the DRI cloud chamber. This paper compares previously reported results of measurements of NO/sub 2/ transformation in simulated cloud with results of other experimental methods. A series of bulk water experiments conducted in order to resolve the discrepencies between the techniques is also described.

• Research Organization: Desert Research Institute, Reno, NV
• OSTI ID: 5638281
• Report Number(s): CONF-850612-
• Conference Information: Journal Name: Proc., Annu. Meet., Air Pollut. Control Assoc.; (United States) Journal Volume: 1
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSORPTION
ACIDIFICATION
AIR POLLUTION MONITORING
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMISTRY
CLOUDS
COMPARATIVE EVALUATIONS
DROPLETS
EARTH ATMOSPHERE
EXPERIMENT PLANNING
FOG
HYDROGEN COMPOUNDS
INORGANIC ACIDS
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
NUCLEATION
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PLANNING
RESOLUTION
SIMULATION
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TIME RESOLUTION
TIMING PROPERTIES
VAPOR CONDENSATION
WATER