Chemical composition of total deposition samples collected in the metropolitan area of Costa Rica in 2012
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| Autores: | , , , |
|---|---|
| Formato: | artículo original |
| Estado: | Versión publicada |
| Fecha de Publicación: | 2014 |
| Descrição: | Inorganic ions concentrations were measured on bulk precipitation samples in seven sites in San José, Heredia and Belen cities during the rainy season 2012. SO4-2, NO3-, Cl-, F-, PO4-3, NH4+, K+, Na+, Ca+2, Mg+2 were analyzed by ion chromatography. The results indicated that Na+ and SO42− were the most abundant ions. Pearson's correlation, applied to all data, showed a high correlation between SO42- with NO3-, Ca2+ and NH4+, indicating an anthropogenic and neutralization origin respectively. The contribution of NO3- to neutralization was relatively small in comparison with SO42−. PCA analysis was used in order to indentify the mainly sources (crustal, neutralization and marine aerosol) and that contribute to the chemical composition of the bulk precipitation samples. |
| País: | Portal de Revistas UNA |
| Recursos: | Universidad Nacional de Costa Rica |
| Repositorio: | Portal de Revistas UNA |
| Idioma: | Español |
| OAI Identifier: | oai:www.revistas.una.ac.cr:article/7228 |
| Acesso em linha: | https://www.revistas.una.ac.cr/index.php/ambientales/article/view/7228 |
| Palavra-chave: | Iones solubles en agua depositación total contaminación atmosférica contaminación urbana Costa Rica Water soluble ions bulk precipitation air pollution urban pollution |