Pattern of volatile aldehydes and aromatic hydrocarbons in the largest urban rainforest in the Americas
| Autor: | Graciela Arbilla, Luciana S. Varandas, Claudinei de Souza Guimarães, D. Custodio |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Environmental Engineering
Health Toxicology and Mutagenesis Formaldehyde BTEX Hydrocarbons Aromatic chemistry.chemical_compound Urban forest Environmental Chemistry Benzene Charcoal Chromatography High Pressure Liquid Air Pollutants Aldehydes Urbanization Public Health Environmental and Occupational Health Acetaldehyde General Medicine General Chemistry South America Pollution Toluene chemistry visual_art Environmental chemistry visual_art.visual_art_medium Gas chromatography Volatilization Environmental Monitoring |
| Zdroj: | Chemosphere. 79:1064-1069 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/j.chemosphere.2010.03.028 |
| Popis: | Atmospheric concentrations of aldehydes and monoaromatic hydrocarbons were determined in Tijuca Forest, the largest urban tropical forest in the Americas. The forest is a protected area, surrounded by the city of Rio de Janeiro. Data were also obtained in a commercial and a residential area for comparison. A total of 160 aldehyde samples and 60 BTEX (benzene, toluene, ethyl-benzene and xylenes) samples were collected from four locations between January and August of 2008. The aldehydes were collected using C18 resin cartridges coated with 2,4-dinitrophenylhydrazine and analyzed by high performance liquid chromatography (HPLC) with a diode array UV–Vis detector, while the BTEX samples were collected using tubes of coconut charcoal, which were then extracted with dichloromethane and analyzed by gas chromatography (GC). Within Tijuca Forest, formaldehyde and acetaldehyde levels were in the range of |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect