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Mass Size Distributions and Precursor Gas Concentrations of Major Inorganic Ions in'Antarctic Aerosol
- Source :
- International Journal of Environmental Analytical Chemistry. 71:353-372
- Publication Year :
- 1998
- Publisher :
- Informa UK Limited, 1998.
-
Abstract
- Mass size distributions of major inorganic ions in aerosol particles and their atmospheric precursor gases were studied at Terra Nova Bay in Antarctica (74° 41′ 42″S, 164° 05′36 ″E) between January 30 and February 18, 1995. The mass size distributions of sulphate, the major inorganic ion, had two submicron and two supermicron modes. The accumulation mode (average mass median diameter 0.285±0.016 μn) had a very stable concentration over the whole sampling period (238.8±39.7 ng/m3). The smaller submicron mode (Aitken mode) had an averaged mass median diameter at 0.069 μm (standard deviation 0.011 μm). The existence of an Aitken mode is an indirect indication of new particle formation in the Antarctic summer atmosphere. The coarse-particle sulphate is due to the emissions of sea salt particles and their subsequent absorption of and reactions with atmospheric SO2. Ammonium was found primarily in the accumulation mode, where it probably was associated with very acidic ammonium sulphate/hydrated sulphu...
- Subjects :
- food.ingredient
Chemistry
Health, Toxicology and Mutagenesis
Sea salt
Public Health, Environmental and Occupational Health
Analytical chemistry
Soil Science
Mineralogy
Inorganic ions
Pollution
Analytical Chemistry
Aerosol
Atmosphere
chemistry.chemical_compound
food
Particle-size distribution
Environmental Chemistry
Particle
Ammonium
Absorption (chemistry)
Waste Management and Disposal
Water Science and Technology
Subjects
Details
- ISSN :
- 10290397 and 03067319
- Volume :
- 71
- Database :
- OpenAIRE
- Journal :
- International Journal of Environmental Analytical Chemistry
- Accession number :
- edsair.doi...........4faa5d6ba4a9bb74749c2a92d43d772d