Total deposition analysis around the protective zone of the Escazú hills in Costa Rica
Uloženo v:
| Autoři: | , |
|---|---|
| Médium: | artículo original |
| Stav: | Versión publicada |
| Datum vydání: | 2019 |
| Popis: | The Protective Area of the Escazú Hills (ZPCE, Spanish acronym) is an area designated as a pollution sink within theWestern Central Valley (VCO, Spanish acronym), in Costa Rica. For this study, the total deposition characteristicsobtained in the ZPCE during 2015’s rainy season were analyzed. The pH parameters and field conductivity wereassessed. The Cl-, SO4-2 and NO3- anions were determined by ion exchange chromatography while the Ca+2 andMg+2 cations were analyzed by atomic absorption. It was possible to identify acid rain (pH less than 5.6) in 90%of the ZPCE samples. There is more acidic pH distribution in the northwest part of ZPCE. The pH, as H+ concentration,presents a moderate conductivity correlation (0.585), according to Kolhraush’s law. The most abundant rainions collected are as follows, in decreasing order: CO3-2 > Cl- > SO4-2> NO3-. The ion correlations were high(more than 0.7) between Cl- and Mg + 2, between Ca+ 2 and CO3-2 and moderate (more than 0.4) between SO4-2and NO3-. |
| Země: | Portal de Revistas UTN |
| Instituce: | Universidad Técnica Nacional |
| Repositorio: | Portal de Revistas UTN |
| Jazyk: | Español |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/192 |
| On-line přístup: | https://revistas.utn.ac.cr/index.php/yulok/article/view/192 |
| Klíčové slovo: | deposición atmosférica total lluvia ácida pH conductividad aniones cationes total atmospheric deposition acid rain conductivity anions cations |