ACTIVE BIOMONITORING OF POLYCYCLIC AROMATIC HYDROCARBONS AT THE CARACAS VALLEY-VENEZUELA USING Parmotrema sancti-angelii (LYNGE) HALE LICHEN
The aim of this work was to determine the ability of the lichen Parmotrema sancti-angelii (Lynge) Hale to characterize and quantify polycyclic aromatic hydrocarbons (PAHs) present in the air of the Caracas city. The lichens were transplanted from a suburban area to six locations in the city, where t...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2013 |
| País: | México |
| Institución: | UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO |
| Repositorio: | Revista Internacional de Contaminación Ambiental |
| Idioma: | español |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/29441 |
| Acceso en línea: | https://www.revistascca.unam.mx/rica/index.php/rica/article/view/29441 |
| Access Level: | acceso abierto |
| Palabra clave: | air pollution polycyclic aromatic hydrocarbons biological monitoring transplanted lichen contaminación atmosférica hidrocarburos aromáticos policíclicos monitoreo biológico líquenes trasplante |
| Sumario: | The aim of this work was to determine the ability of the lichen Parmotrema sancti-angelii (Lynge) Hale to characterize and quantify polycyclic aromatic hydrocarbons (PAHs) present in the air of the Caracas city. The lichens were transplanted from a suburban area to six locations in the city, where they were exposed for a period of four months. Sixteen(16) PAHs were studied which only thirteen (13) were above the limit of quantification. The total concentration of PAHs ranged from 2553 to 7654 ng /g. The lichens showed an enrichment in high molecular weight compounds (5 and 6 rings) for the studied locations, associated with atmospheric particles commonly generated by combustion processes. The ratio Fen/Ant suggests a remarkable pyrogenic origin and the ratio Ind/Ind+B[g,h,i] P indicates the presence of PAHs from burning vegetation in all locations. |
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