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Evaluation of the levels of particles PM{sub 10} and nitrogen dioxide at the city of San Jose, Costa Rica: 2005-2006; Evaluacion de los niveles de particulas PM{sub 10} y dioxido de nitrogeno en la ciudad de San Jose, Costa Rica: 2005-2006

Journal Article:

Abstract

The levels of particulate matter PM{sub 10} were determined at two sites of San Jose City (Catedral Metropolitana and Junta de Educacion), during a year (September 2005-September 2006), obtaining as annual average 36 {+-} 8 {mu}g/m{sup 3} and 25 {+-} 7 {mu}g/m{sup 3}, respectively. Also, the levels of sulfates, nitrates and chlorides were measured for both sites. The annual averages have resulted not to be significantly different for both sites, with a level of significance of 5%. Three of the fourteen sites of measurement of the concentration of nitrogen dioxide in the city, have presented higher values to the recommendation of the World Health Organization, monitoring for one month. The principal component analysis that were applied to the data of this gas, has showed that the variations in the levels are due to large-scale phenomena (meteorological). However, the concentration of sulfate present in the particulate matter has reached higher values to those recorded in cities like Rio de Janeiro and Mexico D.F., product probably of the high sulfur content present in the fuels that are used by the vehicle fleet at Costa Rica. The principal component analysis indicates that has existed a strong correlation between the concentrations of sulfate and  More>>
Authors:
Herrera-Murillo, Jorge; [1]  Rodriguez Roman, Susana, E-mail: rr.susana@gmail.com, E-mail: susanar@cariari.ucr.ac.cr [2] 
  1. Univ. Nacional, Escuela de Ciencias Ambientales, Lab. de Analisis Ambiental, Campus Omar Dengo, apartado 86-3000 Heredia (Costa Rica). Tel: 506-277-3292
  2. Univ. de Costa Rica, Escuela de Quimica, Ciudad Universitaria Rodrigo Facio, San Pedro de Montes de Oca (Costa Rica). Tel: 506-2207-5376
Publication Date:
Jul 15, 2009
Product Type:
Journal Article
Resource Relation:
Journal Name: Tecnologia en Marcha; Journal Volume: 22; Journal Issue: 3; Other Information: Figs., tabs., refs.
Subject:
54 ENVIRONMENTAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; AIR POLLUTION CONTROL; AIR POLLUTION MONITORING; AIR QUALITY; AIR SAMPLERS; CHLORIDES; EVALUATED DATA; NITRATES; NITROGEN DIOXIDE; PARTICULATES; SAMPLING; SULFATES; URBAN AREAS
OSTI ID:
22134756
Country of Origin:
Costa Rica
Language:
Spanish
Other Identifying Numbers:
Journal ID: ISSN 0379-3982; TRN: CR1300051089413
Availability:
Also available from Biblioteca Luis Demetrio Tinoco, Universidad de Costa Rica
Submitting Site:
INIS
Size:
page(s) 42-55
Announcement Date:
Oct 03, 2013

Journal Article:

Citation Formats

Herrera-Murillo, Jorge, and Rodriguez Roman, Susana, E-mail: rr.susana@gmail.com, E-mail: susanar@cariari.ucr.ac.cr. Evaluation of the levels of particles PM{sub 10} and nitrogen dioxide at the city of San Jose, Costa Rica: 2005-2006; Evaluacion de los niveles de particulas PM{sub 10} y dioxido de nitrogeno en la ciudad de San Jose, Costa Rica: 2005-2006. Costa Rica: N. p., 2009. Web.
Herrera-Murillo, Jorge, & Rodriguez Roman, Susana, E-mail: rr.susana@gmail.com, E-mail: susanar@cariari.ucr.ac.cr. Evaluation of the levels of particles PM{sub 10} and nitrogen dioxide at the city of San Jose, Costa Rica: 2005-2006; Evaluacion de los niveles de particulas PM{sub 10} y dioxido de nitrogeno en la ciudad de San Jose, Costa Rica: 2005-2006. Costa Rica.
Herrera-Murillo, Jorge, and Rodriguez Roman, Susana, E-mail: rr.susana@gmail.com, E-mail: susanar@cariari.ucr.ac.cr. 2009. "Evaluation of the levels of particles PM{sub 10} and nitrogen dioxide at the city of San Jose, Costa Rica: 2005-2006; Evaluacion de los niveles de particulas PM{sub 10} y dioxido de nitrogeno en la ciudad de San Jose, Costa Rica: 2005-2006." Costa Rica.
@misc{etde_22134756,
title = {Evaluation of the levels of particles PM{sub 10} and nitrogen dioxide at the city of San Jose, Costa Rica: 2005-2006; Evaluacion de los niveles de particulas PM{sub 10} y dioxido de nitrogeno en la ciudad de San Jose, Costa Rica: 2005-2006}
author = {Herrera-Murillo, Jorge, and Rodriguez Roman, Susana, E-mail: rr.susana@gmail.com, E-mail: susanar@cariari.ucr.ac.cr}
abstractNote = {The levels of particulate matter PM{sub 10} were determined at two sites of San Jose City (Catedral Metropolitana and Junta de Educacion), during a year (September 2005-September 2006), obtaining as annual average 36 {+-} 8 {mu}g/m{sup 3} and 25 {+-} 7 {mu}g/m{sup 3}, respectively. Also, the levels of sulfates, nitrates and chlorides were measured for both sites. The annual averages have resulted not to be significantly different for both sites, with a level of significance of 5%. Three of the fourteen sites of measurement of the concentration of nitrogen dioxide in the city, have presented higher values to the recommendation of the World Health Organization, monitoring for one month. The principal component analysis that were applied to the data of this gas, has showed that the variations in the levels are due to large-scale phenomena (meteorological). However, the concentration of sulfate present in the particulate matter has reached higher values to those recorded in cities like Rio de Janeiro and Mexico D.F., product probably of the high sulfur content present in the fuels that are used by the vehicle fleet at Costa Rica. The principal component analysis indicates that has existed a strong correlation between the concentrations of sulfate and nitrate present in the particles PM{sub 10}, pointing the contribution of anthropogenic sources. In the case of chloride, has highlighted the strong existing relationship with the meteorological parameters that were registered during the sampling period. (author) [Spanish] Los niveles de material particulado PM{sub 10} fueron determinados en dos sitios de la ciudad de San Jose (Catedral Metropolitana y Junta de Educacion), durante un ano (setiembre 2005-setiembre 2006), obteniendo como promedio anual 36 {+-} 8 {mu}g/m{sup 3} y 25 {+-} 7 {mu}g/m{sup 3}, respectivamente. Ademas, los niveles de sulfatos, nitratos y cloruros fueron medidos para ambos sitios. Las medias anuales han resultado no ser significativamente diferentes para ambos sitios, con un nivel de significancia del 5%. Tres de los catorce sitios de medicion de concentracion de dioxido de nitrogeno en la ciudad, han presentado valores superiores a la recomendacion de la Organizacion Mundial de la Salud, para un mes de monitoreo. El analisis de componentes principales que fueron aplicados a los datos de este gas, ha mostrado que las variaciones en los niveles se deben a fenomenos de larga escala (meteorologicos). Sin embargo, la concentracion de sulfato presente en el material particulado ha alcanzado valores superiores a los registrados en ciudades como Rio de Janeiro y Mexico D.F., producto probablemente de los altos contenidos de azufre presentes en los combustibles que son utilizados por la flotilla vehicular en Costa Rica. El analisis de componentes principales indica que ha existido una fuerte correlacion entre las concentraciones de sulfato y nitrato presentes en las particulas PM{sub 10}, senalando la contribucion de fuentes antropogenicas. En el caso del cloruro, ha destacado la fuerte relacion existente con los parametros meteorologicos que fueron registrados durante el periodo de muestreo. (autor)}
journal = {Tecnologia en Marcha}
issue = {3}
volume = {22}
journal type = {AC}
place = {Costa Rica}
year = {2009}
month = {Jul}
}