The effect of precipitation amount and atmospheric concentrations on wet deposition fluxes of oxidized and reduced nitrogen species in Connecticut

The effects of precipitation amount and atmospheric concentrations of inorganic nitrogen species on precipitation concentrations and wet fluxes of oxidized and reduced nitrogen in Connecticut were studied for a period of 152 weeks (7 February,1997 through 31 December, 1999). The annual volume weight...

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Bibliographic Details
Published in:Water, air, and soil pollution air, and soil pollution, 2003-02, Vol.143 (1-4), p.315-335
Main Authors: NADIM, Farhad, STAPCINSKAITE, Snieguole, TRAHIOTIS, Michael M, PERKINS, Christopher, CARLEY, Robert J, SHILL LIU, XIUSHENG YANG
Format: Article
Language:English
Subjects:
Ammonium
Applied sciences
Atmospheric pollution
Chemical precipitation
Deposition
Environmental monitoring
Exact sciences and technology
Herbivores
Nitrogen
Oxidation
Pollutants physicochemistry study: properties, effects, reactions, transport and distribution
Pollution
Precipitation
Sampling
Studies
Wet deposition
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Summary:The effects of precipitation amount and atmospheric concentrations of inorganic nitrogen species on precipitation concentrations and wet fluxes of oxidized and reduced nitrogen in Connecticut were studied for a period of 152 weeks (7 February,1997 through 31 December, 1999). The annual volume weighted mean(VWM) concentration in precipitation of oxidized and reduced nitrogen varied with precipitation amount between sites and years. To investigate the effect of varying precipitation amount and mean monthly temperatures on concentrations of inorganic nitrogen species in precipitation, the precipitation events were classified into seven groups and each year was divided into two warm and cold sampling periods. Increasing precipitation amount had a substantial decreasing effect on the VWM concentration of nitrate and ammonium ions in precipitation. The highest VWM concentrations of oxidized and reduced nitrogen in precipitation were found in the lower weekly precipitation range of 0 to 0.5 cm. The results of this study indicated that precipitation amount was one of the main factors affecting volume weighted mean concentrations and fluxes of oxidized and reduced nitrogen. Chemical composition of inorganic nitrogen species in the atmosphere showed that during warm and cold sampling periods reduced nitrogen was the predominant atmospheric specie, and oxidized nitrogen was the predominant wet specie in precipitation at all sampling sites.[PUBLICATION ABSTRACT]
ISSN:0049-6979
1573-2932
DOI:10.1023/A:1022817226247