Estimation of dry deposition of atmospheric nitrogen to coastal waters of de la Plata River in front of Buenos Aires city

The deposition of atmospheric nitrogen (N) to surface waters of de la Plata River downwind of Buenos Aires city has been estimated using atmospheric dispersion-deposition models. The CALPUFF model has been applied to point source emissions and the DAUMOD-RD model has been developed to evaluate the a...

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Detalles Bibliográficos
Autores principales: Pineda Rojas, A.L., Venegas, L.E.
Formato: JOUR
Materias:
Atmospheric dispersion modelling
Buenos Aires
Dry deposition
Nitric acid
Nitrogen dioxide
Area sources
Atmospheric nitrogens
Calpuff
Coastal waters
Deposition models
Dry deposition fluxes
Point source emissions
R-D models
Acids
Atmospheric radioactivity
Nitrogen
Nitrogen oxides
Deposition
atmospheric chemistry
atmospheric modeling
coastal water
dispersion
dry deposition
nitrogen
nitrogen dioxide
point source pollution
surface water
Rio de la Plata
South America
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09574352_v36_n4_p367_PinedaRojas
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:The deposition of atmospheric nitrogen (N) to surface waters of de la Plata River downwind of Buenos Aires city has been estimated using atmospheric dispersion-deposition models. The CALPUFF model has been applied to point source emissions and the DAUMOD-RD model has been developed to evaluate the area source emission contributions. Annual N dry deposition is 31,763 kg-N yr -1 (≈ 18 kg-N km-2 yr-1). Nitrogen dioxide contribution to this value is 54% and nitric acid contribution is 46%. The maximum monthly N dry deposition fluxes vary between 7 kg-N km-2 month-1 (in February) and 13 kg-N km-2 month-1 (in December). Copyright © 2009 Inderscience Enterprises Ltd.

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