Measurement of the mass-accommodation coefficient of SO/sub 2/(g) on water droplets

Technical Report · Wed Dec 31 23:00:00 EST 1986

OSTI ID:7197409

Gardner, J A; Watson, L R; Adewuyi, Y G; Davidovits, P; Zahniser, M S

Heterogeneous reaction pathways involving water droplets in clouds and fogs are important mechanisms for chemical transformation of atmospheric trace gases. One of the fundamental parameters which determines the transfer rate of gases into aqueous droplets is the mass accommodation or sticking coefficient for gas molecules on the droplet surfaces. The authors have developed a laboratory method for directly determining mass accommodation coefficients (y) and have applied it to SO/sub 2/. The measurement indicates that SO/sub 2/ transport into clean aqueous cloud and fog droplets will not be limited by interfacial mass transport under normal atmospheric conditions.

• Research Organization: Boston Coll., Chestnut Hill, MA (USA). Dept. of Chemistry
• OSTI ID: 7197409
• Report Number(s): PB-88-190780/XAB
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMISTRY
CLOUDS
DIFFUSION
DROPLETS
FLUIDS
FOG
GASES
HYDROGEN COMPOUNDS
LIQUIDS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
WATER