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Seasonal trends of atmospheric nitrogen dioxide and sulfur dioxide over North Santa Clara, Cuba.
MedLine Citation:
PMID:  23208757     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Atmospheric nitrogen dioxide (NO(2)) and sulfur dioxide (SO(2)) levels were monitored simultaneously by means of Radiello passive samplers at six sites of Santa Clara city, Cuba, in the cold and the warm seasons in 2010. The dissolved ionic forms of NO(2) and SO(2) as nitrate and sulfite plus sulfate, respectively, were determined by means of ion chromatography. Analysis of NO(2) as nitrite was also performed by UV-Vis spectrophotometry. For NO(2), significant t tests show good agreement between the results of IC and UV-Vis methods. The NO(2) and SO(2) concentrations peaked in the cold season, while their minimum levels were experienced in the warm season. The pollutant levels do not exceed the maximum allowable limit of the Cuban Standard 39:1999, i.e., 40 μg/m(3) and 50 μg/m(3) for NO(2) and SO(2), respectively. The lowest pollutant concentrations obtained in the warm season can be attributed to an increase in their removal via precipitation (scavenging) while to the decreased traffic density and industrial emission during the summer holidays (e.g., July and August).
Authors:
Daniellys Alejo; Mayra C Morales; Jorge B de la Torre; Ricardo Grau; László Bencs; René Van Grieken; Piet Van Espen; Dismey Sosa; Vladimir Nuñez
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-4
Journal Detail:
Title:  Environmental monitoring and assessment     Volume:  -     ISSN:  1573-2959     ISO Abbreviation:  Environ Monit Assess     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8508350     Medline TA:  Environ Monit Assess     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Departamento de Química, Universidad Central "Marta Abreu" de Las Villas, Carretera a Camajuaní Km 5.5, Santa Clara, Cuba, daniellysas@uclv.edu.cu.
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