Analysis of NO, NO2, O3 and NOx concentrations measured at a green area of Buenos Aires City during wintertime

We analyse the air quality data measured at a green area of Buenos Aires City (Argentina) during 38 days in winter. We study the relationships between ambient concentrations of nitric oxide (NO), nitrogen dioxide (NO2), ozone (O3) and nitrogen oxides (NOx=NO+NO2). The variation of the level of oxida...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Mazzeo, N.A., Venegas, L.E., Choren, H.
Formato:	JOUR
Materias:	Local pollution Nitrogen oxides Oxidant Ozone Regional pollution Urban pollution Air pollution control Concentration (process) Exhaust gases Air quality data Nitric oxide (NO) Nitrogen dioxide Nitrous acids (HONO) Air quality nitrogen dioxide nitrogen oxide oxide oxidizing agent atmospheric pollution air pollution control air quality ambient air article chemical analysis dispersion priority journal Argentina Buenos Aires [Argentina] South America Western Hemisphere World
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_13522310_v39_n17_p3055_Mazzeo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_13522310_v39_n17_p3055_Mazzeo
record_format	dspace
spelling	todo:paper_13522310_v39_n17_p3055_Mazzeo2023-10-03T16:10:11Z Analysis of NO, NO2, O3 and NOx concentrations measured at a green area of Buenos Aires City during wintertime Mazzeo, N.A. Venegas, L.E. Choren, H. Local pollution Nitrogen oxides Oxidant Ozone Regional pollution Urban pollution Air pollution control Concentration (process) Exhaust gases Nitrogen oxides Ozone Air quality data Nitric oxide (NO) Nitrogen dioxide Nitrous acids (HONO) Air quality nitrogen dioxide nitrogen oxide oxide oxidizing agent atmospheric pollution air pollution control air quality ambient air article chemical analysis dispersion priority journal Argentina Buenos Aires [Argentina] South America Western Hemisphere World We analyse the air quality data measured at a green area of Buenos Aires City (Argentina) during 38 days in winter. We study the relationships between ambient concentrations of nitric oxide (NO), nitrogen dioxide (NO2), ozone (O3) and nitrogen oxides (NOx=NO+NO2). The variation of the level of oxidant (OX=O3+NO2) with the NOx is obtained. It can be seen that the level of OX at a given location is made up of two contributions: one independent and another dependent on the NOx concentration. The first one can be considered as a regional contribution, equivalent to the background O3 concentration and the second one as a local contribution that depends on the level of primary pollution. Local oxidant sources may include direct NO2 emissions, the reaction of NO with O2 at high-NOx levels, and the emission of species that promote the conversion of NO to NO2. The final category of emissions may include the nitrous acid (HONO) that is emitted directly in vehicle exhaust. Finally, we present a diurnal variation of the local as well as regional contributions and the dependence of the last one on wind direction. © 2005 Elsevier Ltd. All rights reserved. Fil:Mazzeo, N.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Venegas, L.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_13522310_v39_n17_p3055_Mazzeo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Local pollution Nitrogen oxides Oxidant Ozone Regional pollution Urban pollution Air pollution control Concentration (process) Exhaust gases Nitrogen oxides Ozone Air quality data Nitric oxide (NO) Nitrogen dioxide Nitrous acids (HONO) Air quality nitrogen dioxide nitrogen oxide oxide oxidizing agent atmospheric pollution air pollution control air quality ambient air article chemical analysis dispersion priority journal Argentina Buenos Aires [Argentina] South America Western Hemisphere World
spellingShingle	Local pollution Nitrogen oxides Oxidant Ozone Regional pollution Urban pollution Air pollution control Concentration (process) Exhaust gases Nitrogen oxides Ozone Air quality data Nitric oxide (NO) Nitrogen dioxide Nitrous acids (HONO) Air quality nitrogen dioxide nitrogen oxide oxide oxidizing agent atmospheric pollution air pollution control air quality ambient air article chemical analysis dispersion priority journal Argentina Buenos Aires [Argentina] South America Western Hemisphere World Mazzeo, N.A. Venegas, L.E. Choren, H. Analysis of NO, NO2, O3 and NOx concentrations measured at a green area of Buenos Aires City during wintertime
topic_facet	Local pollution Nitrogen oxides Oxidant Ozone Regional pollution Urban pollution Air pollution control Concentration (process) Exhaust gases Nitrogen oxides Ozone Air quality data Nitric oxide (NO) Nitrogen dioxide Nitrous acids (HONO) Air quality nitrogen dioxide nitrogen oxide oxide oxidizing agent atmospheric pollution air pollution control air quality ambient air article chemical analysis dispersion priority journal Argentina Buenos Aires [Argentina] South America Western Hemisphere World
description	We analyse the air quality data measured at a green area of Buenos Aires City (Argentina) during 38 days in winter. We study the relationships between ambient concentrations of nitric oxide (NO), nitrogen dioxide (NO2), ozone (O3) and nitrogen oxides (NOx=NO+NO2). The variation of the level of oxidant (OX=O3+NO2) with the NOx is obtained. It can be seen that the level of OX at a given location is made up of two contributions: one independent and another dependent on the NOx concentration. The first one can be considered as a regional contribution, equivalent to the background O3 concentration and the second one as a local contribution that depends on the level of primary pollution. Local oxidant sources may include direct NO2 emissions, the reaction of NO with O2 at high-NOx levels, and the emission of species that promote the conversion of NO to NO2. The final category of emissions may include the nitrous acid (HONO) that is emitted directly in vehicle exhaust. Finally, we present a diurnal variation of the local as well as regional contributions and the dependence of the last one on wind direction. © 2005 Elsevier Ltd. All rights reserved.
format	JOUR
author	Mazzeo, N.A. Venegas, L.E. Choren, H.
author_facet	Mazzeo, N.A. Venegas, L.E. Choren, H.
author_sort	Mazzeo, N.A.
title	Analysis of NO, NO2, O3 and NOx concentrations measured at a green area of Buenos Aires City during wintertime
title_short	Analysis of NO, NO2, O3 and NOx concentrations measured at a green area of Buenos Aires City during wintertime
title_full	Analysis of NO, NO2, O3 and NOx concentrations measured at a green area of Buenos Aires City during wintertime
title_fullStr	Analysis of NO, NO2, O3 and NOx concentrations measured at a green area of Buenos Aires City during wintertime
title_full_unstemmed	Analysis of NO, NO2, O3 and NOx concentrations measured at a green area of Buenos Aires City during wintertime
title_sort	analysis of no, no2, o3 and nox concentrations measured at a green area of buenos aires city during wintertime
url	http://hdl.handle.net/20.500.12110/paper_13522310_v39_n17_p3055_Mazzeo
work_keys_str_mv	AT mazzeona analysisofnono2o3andnoxconcentrationsmeasuredatagreenareaofbuenosairescityduringwintertime AT venegasle analysisofnono2o3andnoxconcentrationsmeasuredatagreenareaofbuenosairescityduringwintertime AT chorenh analysisofnono2o3andnoxconcentrationsmeasuredatagreenareaofbuenosairescityduringwintertime
_version_	1782027099558641664

Analysis of NO, NO2, O3 and NOx concentrations measured at a green area of Buenos Aires City during wintertime

Ejemplares similares