Ammonia and ammonium concentrations in the antarctic atmosphere
Abstract
Concentrations of gaseous ammonia and particulate ammonium ion were determined at the South Pole and near Lake Vanda in the Wright Valley, Victoria Land, during November-December 1980. Ammonia gas concentrations which ranged from less than 0.01 to ~ 0.03 μg m -3 (S.T.P.) represented a small fraction of the total (gas plus partiulate) ammonia. At the South Pole the particulate sulphate was apparently nearly fully neutralized by ammonium whereas in the Wright Valley there was evidence of a greater maritime component and a smaller fraction of ammonium in the aerosol. The presence of ammonia in the South Polar atmosphere indicates tropospheric transport of particles observed at the South Pole in the southern summer.
- Publication:
-
Atmospheric Environment
- Pub Date:
- 1983
- DOI:
- 10.1016/0004-6981(83)90431-6
- Bibcode:
- 1983AtmEn..17..815G
- Keywords:
-
- Ammonia;
- Antarctic Regions;
- Atmospheric Composition;
- Molecular Ions;
- Aerosols;
- Particulate Sampling;
- Sulfates;
- Summer