NDLI: Estimation of wet, dry and bulk deposition of atmospheric nitrogen in Connecticut

Content Provider	Royal Society of Chemistry (RSC)
Author	Stapcinskaite, Snieguole Yang, Xiusheng Nadim, Farhad Hoag, George E. Trahiotis, Michael M. Perkins, Christopher Carley, Robert J.
Copyright Year	2001
Abstract	Atmospheric nitrogen species including NO3−, NH4+ and total nitrogen in air and precipitation samples were collected with low-volume filter packs and wet deposition collectors from March 1999 through the end of December 2000 in seven sampling locations in Connecticut. Three sampling locations were chosen along the shores of Long Island Sound and four were chosen in interior sections of Connecticut. Sampling sites were chosen to represent both rural and urban sectors. Wet deposition flux of nitrogen species was calculated using wet concentrations, the volume of collected precipitation and the opening surface area of the Aerochemetrics wet deposition collector. The dry deposition flux of nitrogen species was estimated with the application of the dry deposition inferential model (DDIM). Bulk deposition of nitrogen was collected with the aid of a device based on the Swedish IVL Sampler. The dry deposition fluxes of NO3−, NH4+ and total nitrogen were found to be significantly higher in urban areas than the rural sampling locations. There was, however, no significant difference between the wet deposition fluxes of different nitrogen species in rural and urban sampling locations. When inland and coastal sites were compared, the dry deposition fluxes of NH4+ and total nitrogen were significantly higher in inland locations and there was no significant difference between coastal and inland sampling locations for wet deposition fluxes of nitrogen species. No significant difference was observed between the bulk deposition and the sum of the wet and dry deposition fluxes of total nitrogen at rural sampling locations. In urban sampling locations, the bulk deposition flux of total nitrogen was significantly lower than the sum of dry and wet deposition fluxes. There appears to be a similar seasonal trend in wet and dry deposition fluxes of total nitrogen in Connecticut with high and low deposition fluxes occurring in summer and winter periods, respectively.
Starting Page	671
Ending Page	680
Page Count	10
File Format	HTM / HTML PDF
ISSN	14640325
Volume Number	3
Issue Number	6
Journal	Journal of Environmental Monitoring
DOI	10.1039/b107008h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Connecticut Long Island Sound Nitrogen Outline of air pollution dispersion Swedish language Valtion lentokonetehdas
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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