Measurement of gas/water uptake coefficients for trace gases active in the marine environment. [Annual report]
- Boston Coll., Chestnut Hill, MA (United States). Dept. of Chemistry
- Aerodyne Research, Inc., Billerica, MA (United States). Center for Chemical and Environmental Physics
Ocean produced reduced sulfur compounds including dimethylsulfide (DMS), hydrogen sulfide (H{sub 2}S), carbon disulfide (CS{sub 2}), methyl mercaptan (CH{sub 3}CH) and carbonyl sulfide (OCS) deliver a sulfur burden to the atmosphere which is roughly equal to sulfur oxides produced by fossil fuel combustion. These species and their oxidation products dimethyl sulfoxide (DMSO), dimethyl sulfone (DMSO{sub 2}) and methane sulfonic acid (MSA) dominate aerosol and CCN production in clean marine air. Furthermore, oxidation of reduced sulfur species will be strongly influenced by NO{sub x}/O{sub 3} chemistry in marine atmospheres. The multiphase chemical processes for these species must be understood in order to study the evolving role of combustion produced sulfur oxides over the oceans. We have measured the chemical and physical parameters affecting the uptake of reduced sulfur compounds, their oxidation products, ozone, and nitrogen oxides by the ocean`s surface, and marine clouds, fogs, and aerosols. These parameters include: gas/surface mass accommodation coefficients; physical and chemically modified (effective) Henry`s law constants; and surface and liquid phase reaction constants. These parameters are critical to understanding both the interaction of gaseous trace species with cloud and fog droplets and the deposition of trace gaseous species to dew covered, fresh water and marine surfaces.
- Research Organization:
- Boston Coll., Chestnut Hill, MA (United States). Dept. of Chemistry
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-91ER61208
- OSTI ID:
- 10131238
- Report Number(s):
- DOE/ER/61208-1; ON: DE92010033
- Resource Relation:
- Other Information: PBD: Feb 1992
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CLOUDS
CONDENSATION NUCLEI
SULFUR COMPOUNDS
OXIDATION
PROGRESS REPORT
AIR-WATER INTERACTIONS
SULFUR CYCLE
ATMOSPHERIC CHEMISTRY
NITROGEN OXIDES
OZONE
AEROSOLS
HYDROGEN SULFIDES
CARBON SULFIDES
THIOLS
FOG
ENVIRONMENTAL TRANSPORT
DMSO
SULFONES
SULFONIC ACIDS
540120
540320
CHEMICALS MONITORING AND TRANSPORT