Effect of season and synoptic storm type on precipitation chemistry
For a two-year period, the chemistry of daily precipitation samples for a site in southern Indiana was analyzed for effect of seasons and synoptic storm types. The storms were classified as frontal, cyclonic, convective and other. Statistically significant (5 percent level) higher concentrations of sulfate, ammonium and hydrogen ion and lower sodium occurred in the warm seasons (April-September) than in the cold (October-March); nitrate, chloride and calcium concentrations were similar in both seasons. In general, convective and frontal storms contained the highest concentrations of ions, and cyclonic and other the lowest. Frontal storms showed significant higher sulfate, nitrate, ammonium and hydrogen ion and lower sodium in warm seasons than in cold, while cyclonic storms yielded significant (1 percent level) higher nitrate in the cold seasons. These results are generally consistent with the well-known behavior of the meteorological weather system categories.
- Research Organization:
- Environmental Monitoring and Services, Inc., Newbury Park, CA
- OSTI ID:
- 5692554
- Journal Information:
- J. Air Pollut. Control Assoc.; (United States), Vol. 36:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AMMONIUM COMPOUNDS
ECOLOGICAL CONCENTRATION
ATMOSPHERIC PRECIPITATIONS
CHEMICAL COMPOSITION
CALCIUM
CHLORIDES
NITRATES
SULFATES
AIR POLLUTION
ATMOSPHERIC CHEMISTRY
INDIANA
METEOROLOGY
SEASONAL VARIATIONS
STORMS
ALKALINE EARTH METALS
CHEMISTRY
CHLORINE COMPOUNDS
DISASTERS
ELEMENTS
FEDERAL REGION V
HALIDES
HALOGEN COMPOUNDS
METALS
NITROGEN COMPOUNDS
NORTH AMERICA
OXYGEN COMPOUNDS
POLLUTION
SULFUR COMPOUNDS
USA
VARIATIONS
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)