Water soluble organic constituents in Arctic aerosols and snow pack
- Atmospheric Environment Service, Downsview, Ontario (Canada)
- Florida State Univ., Tallahassee (United States)
Eight water-soluble organic anions were measured in 70 aerosol samples and 10 snow samples at Barrow, Alaska in March-April, 1989. The ranking of the ions in aerosols according to total (coarse + fine aerosol) median concentrations was acetate (44 ng m[sup [minus]3]), oxalate (27), benzoate (23), formate (22), propionate (6), methanesulfonate (5), lactate (4), and pyruvate (4). When added up, the median organic anion mass was 156 ng m[sup [minus]3]. The organic anions/nssSO[sub 4][sup =] mass ratio had a median of 0.18 and 0.07 in the coarse (>1 [mu]m) and fine (<1 [mu]m) size fractions, respectively, but can be very high on occasions. On average, the organic anions made up more than 10% of the water-soluble aerosol mass. A similar ranking in concentration was also found for the organic ions in the snow pack samples. The organic anion/nssSO[sub 4][sup =] mass ratio in these samples was >0.5, substantially higher than in aerosols. 18 refs., 2 tabs.
- OSTI ID:
- 6919792
- Journal Information:
- Geophysical Research Letters (American Geophysical Union); (United States), Vol. 20:1; ISSN 0094-8276
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AEROSOLS
ECOLOGICAL CONCENTRATION
SNOW
CHEMICAL ANALYSIS
ACETATES
ANIONS
ARCTIC REGIONS
AROMATICS
BENZENE
FORMATES
ICE CAPS
LACTATES
METHANE
ORGANIC COMPOUNDS
OXALATES
PROPIONIC ACID
PYRUVIC ACID
SULFONATES
ALKANES
ATMOSPHERIC PRECIPITATIONS
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CHARGED PARTICLES
COLLOIDS
DISPERSIONS
HYDROCARBONS
ICE
IONS
KETO ACIDS
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC SULFUR COMPOUNDS
POLAR REGIONS
SOLS
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