Stable isotope ratio measurements in atmospheric sulfate studies
Conference
·
OSTI ID:7193216
The isotopic composition of atmospheric sulfate has been determined by a number of workers and the results interpreted in terms of contributing sources and mechanisms of origin. A correlation between the /sup 18/O enrichment of atmospheric water and airborne particulate sulfate has been observed. Laboratory preparations of sulfate made from sulfur dioxide by two sets of sequential reactions, hydrolysis followed by oxidation and oxidation followed by hydrolysis, yielded products of distinguishable oxygen-isotope composition. Oxygen isotopic analysis of simultaneously collected field samples of ambient sulfate, sulfur dioxide, and water vapor indicated seasonal trends for all of the major constituents of atmospheric sulfation processes. Some isotopic data were also obtained on precipitation and precipitation sulfates. Field results suggest that ambient sulfates collected in the area of Argonne correpond more closely in oxygen isotope composition to a sulfate molecule containing two oxygens originating from sulfur dioxide, one oxygen from air and one oxygen from condensed-phased atmospheric water, SO/sub s/O/sub s/O/sub cw/O/sup 2 -//sub a/, than to the molecule SO/sub s/O/sub s/O/sub wv/O/sup 2//sub a/ in which one oxygen originates from vapor-phase atmospheric water.
- Research Organization:
- Argonne National Lab., Ill. (USA)
- OSTI ID:
- 7193216
- Report Number(s):
- CONF-760311-5; SM-206/22
- Country of Publication:
- United States
- Language:
- English
Similar Records
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·
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Journal Article
·
Mon Sep 14 20:00:00 EDT 2020
· Geochimica et Cosmochimica Acta
·
OSTI ID:1656543
Related Subjects
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
AIR POLLUTION
CHALCOGENIDES
COLLOIDS
DATA
DISPERSIONS
EVEN-EVEN NUCLEI
FLUIDS
GASES
INFORMATION
ISOTOPE RATIO
ISOTOPES
LIGHT NUCLEI
MONITORING
NUCLEI
OXIDES
OXYGEN 18
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
POLLUTION
SOLS
STABLE ISOTOPES
SULFATES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
VAPORS
WATER VAPOR
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
AIR POLLUTION
CHALCOGENIDES
COLLOIDS
DATA
DISPERSIONS
EVEN-EVEN NUCLEI
FLUIDS
GASES
INFORMATION
ISOTOPE RATIO
ISOTOPES
LIGHT NUCLEI
MONITORING
NUCLEI
OXIDES
OXYGEN 18
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
POLLUTION
SOLS
STABLE ISOTOPES
SULFATES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
VAPORS
WATER VAPOR