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Title: Water soluble organic constituents in Arctic aerosols and snow pack

Abstract

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.

Authors:
 [1];  [2]
  1. Atmospheric Environment Service, Downsview, Ontario (Canada)
  2. Florida State Univ., Tallahassee (United States)
Publication Date:
OSTI Identifier:
6919792
Resource Type:
Journal Article
Journal Name:
Geophysical Research Letters (American Geophysical Union); (United States)
Additional Journal Information:
Journal Volume: 20:1; Journal ID: ISSN 0094-8276
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 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; 540110*

Citation Formats

Li, Shaomeng, and Winchester, J W. Water soluble organic constituents in Arctic aerosols and snow pack. United States: N. p., 1993. Web. doi:10.1029/92GL02918.
Li, Shaomeng, & Winchester, J W. Water soluble organic constituents in Arctic aerosols and snow pack. United States. https://doi.org/10.1029/92GL02918
Li, Shaomeng, and Winchester, J W. 1993. "Water soluble organic constituents in Arctic aerosols and snow pack". United States. https://doi.org/10.1029/92GL02918.
@article{osti_6919792,
title = {Water soluble organic constituents in Arctic aerosols and snow pack},
author = {Li, Shaomeng and Winchester, J W},
abstractNote = {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.},
doi = {10.1029/92GL02918},
url = {https://www.osti.gov/biblio/6919792}, journal = {Geophysical Research Letters (American Geophysical Union); (United States)},
issn = {0094-8276},
number = ,
volume = 20:1,
place = {United States},
year = {Fri Jan 08 00:00:00 EST 1993},
month = {Fri Jan 08 00:00:00 EST 1993}
}