Atmospheric deposition of nitrogen emitted in the Metropolitan Area of Buenos Aires to coastal waters of de la Plata River
The Metropolitan Area of Buenos Aires (MABA) is the third mega-city in Latin America. Atmospheric N emitted in the area deposits to coastal waters of de la Plata River. This study describes the parameterizations included in DAUMOD-RD (v.3) model to evaluate concentrations of nitrogen compounds (nitr...
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2009
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13522310_v43_n6_p1339_PinedaRojas http://hdl.handle.net/20.500.12110/paper_13522310_v43_n6_p1339_PinedaRojas |
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paper:paper_13522310_v43_n6_p1339_PinedaRojas2023-06-08T16:11:02Z Atmospheric deposition of nitrogen emitted in the Metropolitan Area of Buenos Aires to coastal waters of de la Plata River Atmospheric deposition Atmospheric dispersion modelling Coastal waters Oxidized nitrogen compounds Urban area Atmospheric deposition Atmospheric dispersion modelling Coastal waters Oxidized nitrogen compounds Urban area Atmospheric chemistry Atmospheric radioactivity Atmospherics Deposition Discharge (fluid mechanics) Meteorological problems Nitric acid Nitrogen Nitrogen compounds Nitrogen oxides Nonmetals Rivers Coastal zones atmospheric deposition atmospheric modeling coastal water coastal zone dispersion metropolitan area nitrogen compound parameterization spatial resolution Argentina Buenos Aires [Argentina] Rio de la Plata South America The Metropolitan Area of Buenos Aires (MABA) is the third mega-city in Latin America. Atmospheric N emitted in the area deposits to coastal waters of de la Plata River. This study describes the parameterizations included in DAUMOD-RD (v.3) model to evaluate concentrations of nitrogen compounds (nitrogen dioxide, gaseous nitric acid and nitrate aerosol) and their total (dry and wet) deposition to a water surface. This model is applied to area sources and CALPUFF model to point sources of NOx in the MABA. The models are run for 3 years of hourly meteorological data, with a spatial resolution of 1 km2. Mean annual deposition is 69, 728 kg-N year-1 over 2 339 km2 of river. Dry deposition contributions of N-NO2, N-HNO3 and N-NO3 - to this value are 44%, 22% and 20%, respectively. Wet deposition of N-HNO3 and N-NO3 - represents 3% and 11% of total annual value, respectively. This very low contribution results from the rare occurrence of rainy hours with wind blowing from the city to the river. Monthly dry deposition flux estimated for coastal waters of MABA varies between 7 and 13 kg-N km-2 month-1. These results are comparable to values reported for other coastal zones in the world. © 2008 Elsevier Ltd. All rights reserved. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13522310_v43_n6_p1339_PinedaRojas http://hdl.handle.net/20.500.12110/paper_13522310_v43_n6_p1339_PinedaRojas |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Atmospheric deposition Atmospheric dispersion modelling Coastal waters Oxidized nitrogen compounds Urban area Atmospheric deposition Atmospheric dispersion modelling Coastal waters Oxidized nitrogen compounds Urban area Atmospheric chemistry Atmospheric radioactivity Atmospherics Deposition Discharge (fluid mechanics) Meteorological problems Nitric acid Nitrogen Nitrogen compounds Nitrogen oxides Nonmetals Rivers Coastal zones atmospheric deposition atmospheric modeling coastal water coastal zone dispersion metropolitan area nitrogen compound parameterization spatial resolution Argentina Buenos Aires [Argentina] Rio de la Plata South America |
spellingShingle |
Atmospheric deposition Atmospheric dispersion modelling Coastal waters Oxidized nitrogen compounds Urban area Atmospheric deposition Atmospheric dispersion modelling Coastal waters Oxidized nitrogen compounds Urban area Atmospheric chemistry Atmospheric radioactivity Atmospherics Deposition Discharge (fluid mechanics) Meteorological problems Nitric acid Nitrogen Nitrogen compounds Nitrogen oxides Nonmetals Rivers Coastal zones atmospheric deposition atmospheric modeling coastal water coastal zone dispersion metropolitan area nitrogen compound parameterization spatial resolution Argentina Buenos Aires [Argentina] Rio de la Plata South America Atmospheric deposition of nitrogen emitted in the Metropolitan Area of Buenos Aires to coastal waters of de la Plata River |
topic_facet |
Atmospheric deposition Atmospheric dispersion modelling Coastal waters Oxidized nitrogen compounds Urban area Atmospheric deposition Atmospheric dispersion modelling Coastal waters Oxidized nitrogen compounds Urban area Atmospheric chemistry Atmospheric radioactivity Atmospherics Deposition Discharge (fluid mechanics) Meteorological problems Nitric acid Nitrogen Nitrogen compounds Nitrogen oxides Nonmetals Rivers Coastal zones atmospheric deposition atmospheric modeling coastal water coastal zone dispersion metropolitan area nitrogen compound parameterization spatial resolution Argentina Buenos Aires [Argentina] Rio de la Plata South America |
description |
The Metropolitan Area of Buenos Aires (MABA) is the third mega-city in Latin America. Atmospheric N emitted in the area deposits to coastal waters of de la Plata River. This study describes the parameterizations included in DAUMOD-RD (v.3) model to evaluate concentrations of nitrogen compounds (nitrogen dioxide, gaseous nitric acid and nitrate aerosol) and their total (dry and wet) deposition to a water surface. This model is applied to area sources and CALPUFF model to point sources of NOx in the MABA. The models are run for 3 years of hourly meteorological data, with a spatial resolution of 1 km2. Mean annual deposition is 69, 728 kg-N year-1 over 2 339 km2 of river. Dry deposition contributions of N-NO2, N-HNO3 and N-NO3 - to this value are 44%, 22% and 20%, respectively. Wet deposition of N-HNO3 and N-NO3 - represents 3% and 11% of total annual value, respectively. This very low contribution results from the rare occurrence of rainy hours with wind blowing from the city to the river. Monthly dry deposition flux estimated for coastal waters of MABA varies between 7 and 13 kg-N km-2 month-1. These results are comparable to values reported for other coastal zones in the world. © 2008 Elsevier Ltd. All rights reserved. |
title |
Atmospheric deposition of nitrogen emitted in the Metropolitan Area of Buenos Aires to coastal waters of de la Plata River |
title_short |
Atmospheric deposition of nitrogen emitted in the Metropolitan Area of Buenos Aires to coastal waters of de la Plata River |
title_full |
Atmospheric deposition of nitrogen emitted in the Metropolitan Area of Buenos Aires to coastal waters of de la Plata River |
title_fullStr |
Atmospheric deposition of nitrogen emitted in the Metropolitan Area of Buenos Aires to coastal waters of de la Plata River |
title_full_unstemmed |
Atmospheric deposition of nitrogen emitted in the Metropolitan Area of Buenos Aires to coastal waters of de la Plata River |
title_sort |
atmospheric deposition of nitrogen emitted in the metropolitan area of buenos aires to coastal waters of de la plata river |
publishDate |
2009 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13522310_v43_n6_p1339_PinedaRojas http://hdl.handle.net/20.500.12110/paper_13522310_v43_n6_p1339_PinedaRojas |
_version_ |
1768544517001052160 |